Hoopoe – A blog by nhbs – Page 48 – The NHBS Conservation Hub

Amphibian and Reptile Conservation Trust Friends’ Day 2020

British Wildlife’s Assistant Editor Catherine Mitson joins the supporters of the Amphibian and Reptile Conservation Trust (ARC) for their annual Friends’ Day. With exclusive site visits and Q&A sessions on the agenda, this year’s Friends’ Day was set to be a great event. Here, Catherine shares with us some of the highlights.

Thankfully, with the existence of Zoom, the ARC Friends’ Day 2020 could go ahead, albeit not its usual format. The Amphibian and Reptile Conservation Trust planned a jam-packed Saturday afternoon to give their supporters the opportunity to see what ARC has been up to and to learn more about Britain’s native reptile and amphibian species.

Woolmer Forest is one of the most extensive and diverse lowland heathlands in Hampshire and home to 12 out of our 13 native reptile and amphibian species, including the rare Smooth Snake and Sand Lizard. Excitingly Blackmoor Heath, a 20ha site in Woolmer Forest, has become ARC’s newest nature reserve after a year-long fundraising appeal. Once introduced to the ARC team (most of whom were sporting fun animal-themed virtual backgrounds) the first video began, and we were taken on a virtual tour of the new reserve.

A priority at Blackmoor Heath is to reintroduce the Natterjack Toad, extending its range in Hampshire. Reducing tree cover and creating ponds are a few examples of the work being undertaken here to support a reintroduced population of Natterjacks. Not only is this vital management for Natterjacks and many other heathland species, this has also led to the exposure of bronze age barrows, or burial mounds – Blackmoor Heath is not only important for wildlife, but historically too.

Blackmoor – by the Amphibian and Reptile Conservation Trust

Next, Field Officers Ralph and Bryony took us to Crooksbury Common in Surrey, an important breeding site for Natterjack Toads. Bordered by a pine plantation, one of the major tasks here is to prevent the encroachment of pine trees, which if left unmanaged, would soon smother valuable heathland habitat. In the hope to restore good numbers of Natterjack Toads, the ARC team are also busy creating and maintaining large shallow ponds, critical for Natterjack breeding and egg-laying, as well as providing shelter for Natterjack adults during the cold winter months. We were also shown key Natterjack identification features, such as the distinctive yellow stripe that runs down the middle of their back.

Moving away from heathlands, we suddenly found ourselves on the dunes of Aberdovey, Wales to discover all about the Connecting the Dragons project. ARC staff and volunteers have been working hard to create exposed sand patches on the dunes here (socially distanced of course) to provide the reintroduced population of Sand Lizards with basking spots and egg-laying sites, as well as making next year’s surveying much easier!

Perhaps not common knowledge to many, there are actually two races of Sand Lizard: the Northern dune race and the Southern heathland race. The morphological differences between the two races were described, highlighting the distinctive identification features. For instance, the males of the Northern dune race tend to be much lighter when they first emerge from hibernation compared to those of the Southern heathland race.

Image by the Amphibian and Reptile Conservation Trust

The final site visit video took us to Dorset. Designated as a Special Area for Conservation and a SSSI, Great Ovens, an ARC nature reserve in Wareham Forest since 1996, is a truly special site. Similarly to Crooksbury Common, a surrounding pine plantation and the threat of scrub invasion means that a sensitive management programme is necessary to maintain the important mix of wet and dry heathland. This is not only beneficial for the amphibians and reptiles on the site, including Adders, Smooth Snakes and Sand Lizards, but also for other species such as Dartford Warbler, Silver-studded Blue, and Scarce Chaser. This was a common theme – habitat management for reptiles and amphibians will have a positive knock-on effect for other species, particularly in declining heathland habitats.

Great Ovens – by the Amphibian and Reptile Conservation Trust

Finally, Public Engagement Officer Owain took us out to find the rare Smooth Snake. Owain was successful in his search, and was able to show us a male Smooth Snake curled up safely underneath refugia (note that a license is required to monitor or handle this species). Owain went on to describe ARC’s ambitious four-year long Snake in the Heather project. Working in partnership with landowners, site managers and wildlife conservation charities, Snakes in the Heather endeavours to conserve the Smooth Snake across its range in southern England, as well as the lowland heathland habitat on which it, and many other species, depends.

Smooth Snake – by Chris Dresh

Throughout the Friends’ Day there were many opportunities for questions during the Q&A panel sessions; we learnt even more about ongoing ARC projects, the management of ARC’s nature reserves and the ecology of UK reptile and amphibian species. Many of the attendees were keen to know what they could do to help Britain’s reptiles and amphibian species and the ARC team enthusiastically provided us with information on how to get involved.

If you’re interested in becoming an ARC volunteer, or would like to become an ARC Friend to support their fantastic conservation work, you can find out more on their website.

Wild Nature Press: Publisher of the Month for November

Wild Nature Press are a UK-based natural history publisher specialising in books about marine life.

This winter will see the arrival of several exciting new additions to their range; beginning with Field Guide to Sharks, Rays and Chimaeras of Europe and the Mediterranean which will be published in November. With Marianne Taylor’s recently published tribute to the often misunderstood gull and the eagerly awaited Sharks of the World due in 2021, NHBS are delighted to announce Wild Nature Press as our Publisher of the Month for November.

Save up to 25% on Wild Nature Press titles

Throughout November we will have special offers on all WNP titles, giving you the perfect opportunity to explore their books: below we have selected some highlights, or you can browse their whole range here.

Field Guide to Sharks, Rays and Chimaeras of Europe and the Mediterranean
By: David A Ebert and Marc Dando
Paperback | Due Nov 2020 | £21.99 ~~£27.99~~
Illustrated key guides enable the reader to identify down to species and comparison plates of similar species and plates of teeth also aid identification.

The Gull Next Door: A Portrait of a Misunderstood Bird
By: Marianne Taylor
Hardback | October 2020 | £17.99 ~~£21.99~~
Reveals deeper truths to these remarkable birds. They are thinkers and innovators, devoted partners and parents. They lead long lives and often indulge their powerful drive to explore and travel.

Seaweeds of Britain and Ireland
By: Frances StP D Bunker, Juliet A Brodie, Christine A Maggs and Anne R Bunker
Paperback | June 2017 | £15.50 ~~£19.50~~
British and Irish shallow seas contain an astonishing 6% of the world’s seaweed species, more than 600 different seaweeds: this books enables divers, snorkelers and rock-poolers to identify them.

The Essential Guide to Rockpooling
By: Julie Hatcher and Steve Trewhella
Paperback | May 2019 | £12.75 ~~£16.99~~
Whether you are an individual or family visiting the seaside, or a naturalist wishing to expand your knowledge, this guide shows you how to discover the astonishing diversity of coastal wildlife with nothing more than a net and a bucket.

Sea Squirts and Sponges of Britain and Ireland
By: Sarah Bowen, Claire Goodwin, David Kipling and Bernard E Picton
Paperback | July 2018 | £13.50 ~~£17.99~~
Includes sea squirts found in Britain and Ireland’s shallow waters and most recognised sponges. Whether you are a student, a diver, a rock-pooler or simply an enthusiast, this is an essential companion.

Sharks of the World: A Fully Illustrated Guide
By: David A Ebert, Sarah Fowler and Marc Dando
Hardback | Due Feb 2021 | £34.99 ~~£41.99~~
Packed with unique colour illustrations, line drawings and photographs that are well-presented and easy to use, Sharks of the World is the only single guide to cover over 500 of the world’s shark species

Browse all our Wild Nature Press books at NHBS

All prices correct at the time of this article’s publication.

British Wildlife has expanded!

Since its launch in 1989, British Wildlife has established its position as the leading natural history magazine in the UK. NHBS first took on responsibility for publishing British Wildlife in 2016, and in August this year we were excited to announce that the magazine will be expanding, with the addition of two extra issues per volume. Here, British Wildlife’s Editor talks more about this change and highlights a small selection of the many fascinating articles published in recent issues.

This autumn has been a busy one for British Wildlife as, after 31 years as a bimonthly, we have begun our move to publishing eight times per year.

The main driver for this change has been the sheer volume and quality of articles we have received in recent years, and the sense of frustration at watching these sit on our hard drives for many months before they make it to print! The move to eight issues will speed up the publication process and, we hope, leave us better placed to track the most important developments in nature conservation. In a time of such rapid change, both in the fortunes of our wildlife and the world of environmental policy, the need for informed commentary and expert analysis is greater than ever. In British Wildlife, we will provide a forum for discussion of these topics while continuing, as always, to showcase the delights of natural history in Britain and Ireland.

Our additional space also provides the opportunity to bring further variety to some of our regular features, including through occasional contributions from guest columnists and expanding the coverage of our ever-popular wildlife reports section (see the October issue for our debut plant galls report, and look out for further additions over the next year).

The first November issue of British Wildlife

As part of the expansion, last week saw our first ever November issue go to the printers. Subscribers can look forward to articles on a varied mix of subjects, including:

the story of discovery of autumn swarming by bats
the potential to create an alluvial floodplain woodland – a habitat lost from Britain – in the Usk Valley, in Wales
the conservation of one of Britain’s largest and rarest spiders, the Fen Raft Spider
the diverse wildlife and habitats of Muir of Dinnet National Nature Reserve, in Aberdeenshire
The limitations of photographs for identifying insects and the need for specialist recording

A number of other fascinating topics have appeared in recent months.

Highlights in October included an overview of the conservation and biology of the Critically Endangered European Eel – the most heavily trafficked wild animal in the world – along with a summary of the difficulties brought upon the conservation sector by the COVID-19 pandemic, and a detailed behavioural study of the common, yet often overlooked, Speckled Bush-cricket.

Our August issue explored the topic of island biogeography through the lens of the Scilly Isles and their unusual wildlife, the spectacular effect of beavers on wetland habitats, and the remarkable world of hybridisation between orchid species.

And in June, we covered the folklore and natural history of the Jackdaw, the amazing diversity of the Ardeer Peninsula, which is currently threatened by development, and the identification and biology of Britain’s ten species of froghopper, or ‘cuckoo-spit insect’.

The above includes just a small selection from recent issues – for a full list of articles and other features, visit the British Wildlife website.

Individual back issues of the magazine are available to buy through the NHBS website, while annual subscriptions start from just £35 – sign up online here.

If you know someone who might enjoy British Wildlife, gift subscriptions – complete with a free British Wildlife mug – are available through the NHBS website.

The NHBS Guide to Moth Trapping

What is moth trapping?

Moth trapping typically involves the use of an artificial light source such as a Mercury Vapour or Actinic bulb to attract moths during the night. In a traditional moth trap the bulb is suspended over a box into which the moths fly, and from where they can be examined and identified before being safely released. However, it is also possible to use the bulb in combination with a white sheet (either laid flat on the ground or suspended vertically using poles and lines) in order to view the moths that are attracted to it. Obviously this technique relies on the light being attended so that moths can be observed as they arrive, as opposed to with a box-style moth trap which can be left unattended overnight and the catch checked in the morning.

Several different types of moth trap are widely available. Take a look at our previous blog post for more information about the most common types of trap; including the Robinson trap, Skinner trap and Heath trap. Options include those which are powered by the mains, as well as battery powered models.

Alternative methods of attracting moths for survey and identification include sugaring, whereby a sweet solution (such as a mixture of treacle, sugar and ale) is painted onto a wooden post in order to attract moths. Similarly, wine-roping involves saturating a natural-fibre rope in a mixture of red wine and sugar for a couple of days and then hanging it from a bush or tree. Both of these methods are most effective during the autumn, winter and early spring when natural sources of nectar are at their lowest. Another very easy method of searching for moths simply involves using a torch to search tree trunks for resting individuals. This low-tech option is particularly fruitful between November and March when there are fewer flying moths and when a light-based moth trap is less effective.

When is the best time for moth trapping?

In general, in the UK, a moth trap can be used from early March to November with varying degrees of success. In woodland habitats they will be effective over more of the season, whereas in open habitats, they are more useful between mid-April and mid-September. Peak months for moth trapping tend to be July and August.

Traps should be set up during the final hour or so of daylight and left to run overnight or for several hours if you wish to stay and monitor the catch. Otherwise, you can simply return at first light to see what your trap has caught. Robinson traps are the only style of trap that will retain all of the catch but other designs such as Skinner and Heath traps still have good retention rates.

Some of the stunning species commonly arriving at moth traps in the UK. Images by O Haines.

Where should I put my moth trap?

For many people, particularly beginners, the easiest place to begin moth trapping is in the garden. Those with a wide range of flowering plants, especially species with scented flowers such as Jasmine, Honeysuckle, Buddleia and Fuschia, will be particularly attractive to moths. If you own a battery-powered trap (or a generator) then woodlands (broad-leaved or coniferous), wetlands and coastal areas are all good options; each are home to a different range of species.

Traps using a Mercury Vapour bulb, which are much brighter than Actinic ones, are particularly suitable for open habitats and in woodland rides, whilst Actinic traps work well under the canopy or in the understory.

Make sure that you get permission from the landowner of the place where you are trapping. If you wish to trap in a nature reserve, always contact the reserve manager for permission – usually they will be more than happy to give this, particularly if you provide them with the records of species caught afterwards.

What else do I need to know?

• Placing several egg boxes in the base of your trap provides captured moths with a textured surface and a variety of gaps and crevices to roost inside. It also makes emptying the trap easier in the morning, as egg boxes can be removed individually for checking.

• Placing a white sheet underneath often attracts moths that do not enter the trap itself.

• Having a selection of tubs or pots at the ready can be useful for temporarily holding individual moths for further examination. Pots with a magnifying lid, or a separate hand lens are useful for picking out the finer details, particularly on smaller specimens. When handling moths, be as careful as possible not to touch their delicate wings, as the oils on your hands can be damaging to them.

• When trapping in a garden, it is important not to run your trap on consecutive nights, as this increases the chance of the same individuals being trapped on a repeated basis. (In large gardens, this problem can be avoided if it is possible to release the moths at least 50m away from the trapping sight).

• Make sure that moths are released in an overgrown location to minimise the risk of them being predated by birds. If you wish to release them in the evening, cover the trap and place it in a cool, shaded location during the day.

• The weather can be extremely important when choosing which nights to trap. Warm, still nights with plenty of cloud cover are likely to produce the best catches. Strong winds, heavy rain and clear nights, particularly when there is a full moon, will be less productive. Nights with a steady drizzle, however, should not be avoided and can be surprisingly good for trapping.

• Records of your catches can be kept and submitted to your local county recorder, or uploaded on the National Moth Recording Scheme website. This information will help to inform conservation efforts for moths and their habitats at both local and national levels.

A good field guide is invaluable in identifying your catch. Image by O Haines.

Recommended identification guides

Field Guide to the Moths of Great Britain and Ireland
#243658

The third edition of this notable field guide has been fully revised, updated and restructured. Moths are illustrated in their natural resting postures, and there are also paintings of different forms, underwings and other details to help with identification.

Concise Guide to the Moths of Great Britain and Ireland
#246490

This concise guide is a companion to the main Field Guide to the Moths of Great Britain and Ireland by the same expert authors, but is in a condensed form with artwork opposite the species descriptions and lay-flat binding for ease of use in the field.

Field Guide to the Micro-Moths of Great Britain and Ireland
#243663

This ground-breaking book is the most comprehensive field guide to micro-moths ever published and for the first time makes this fascinating and important group of insects accessible to the general naturalist.

NHBS In the Field – Dino-Lite WF4915ZT Wireless Microscope Kit

Within the last 15 years the availability and quality of USB digital stereo microscopes has vastly improved, and these fantastic devices are now regularly used by naturalists and hobbyists looking to view the hidden details of the natural world.

Dino-Lite are a well-known manufacturer of USB microscopes. Their range comprises basic models for those new to the field of microscopy, alongside cutting-edge models that produce stunningly detailed high-quality images and have additional features such as wireless video streaming.

We recently tested the Dino-Lite WF4915ZT Wireless Microscope Kit. This kit is from Dino-Lite’s professional range and it includes an AF4915ZT microscope and a WF-20 wireless adapter. The AF4915ZT is a dynamic microscope and has a number of features which are not available on more basic models. These include: Extended Depth of Field (EDOF), which helps achieve greater overall focus on surfaces with varying heights; Enhanced Dynamic Range (EDR), which helps when viewing objects with large variations in brightness; Flexible LED Control, which allows you to turn on/off pairs of LED lights to achieve the best possible illumination; and Automatic Magnification Reading, which allows the DinoCapture software to automatically register and display the current magnification.

Our aim was to see how easy and intuitive the device was to setup and use, and to explore the benefits offered by its advanced features and wireless functionality.

How We Tested

First we installed the included DinoCapture 2.0 software onto our computer. All DinoLite USB microscopes come supplied with this program loaded onto a CD-ROM, however it is also available online as a digital download. We tested the microscope using DinoCapture 2.0 on a desktop computer, however, you can also use this microscope wirelessly on either a smartphone or a tablet via the free DinoCapture app.

The WF-20 module was charged overnight and then connected to the AF4915ZT. The WF-20 was easy to attach, as the wired end piece of the AF4915ZT has two release buttons which, when pressed simultaneously, allowed us to gently remove this module and then connect the WF-20. When powered on, the WF-20 appears as a wireless network on any nearby Wi-Fi devices. Once connected to this network we were able to view a live feed from the microscope on DinoCapture.

We used the microscope to view a number of plant and insect samples.

Moth eye – viewed with Extended Dynamic Range

What We Found

The 1.3MP resolution is certainly a big improvement over some of the more basic models. Using the microscope at some of the higher magnifications is hugely rewarding, as you are granted some fantastic views of the minute details that are otherwise easily missed. The advanced features (as listed in the introduction to this review) may not be entirely noticeable to those new to digital microscopy, however, compared to older and more economical models they make operating this microscope far simpler. Previously, one would struggle at times to deal with structures having varying levels of brightness (particularly common with iridescent insects for example), and have little control outside of the overall LED brightness to try and address this. However, with the great LED controls and EDR the overall image can be brought closer together and previously obscured features become visible in much greater detail.

The EDOF is also a really helpful tool, especially at lower magnifications and on specimens with a variable structural height (which in our case was an acorn cup and a seed pod). Despite the differing heights, the microscope was able to keep most of the specimen in focus. Both the EDR and EDOF take around five seconds to process, meaning you can view the results and adapt your settings quickly to achieve the best image possible.

Manoeuvring the microscope freehand was relatively easy as it only has a few buttons on its main body, so there wasn’t any accidental mis-clicking. The focus ring is also light enough that it can be manipulated using only the middle and index fingers. Trying to keep the microscope steady and operate the DinoCapture software at the same time was rather difficult, especially at higher magnifications, and so when taking any images I opted to use the device with a stand (specifically the Dino-Lite RK06A). This allowed me to configure the microscope into the perfect position and then operate the computer without fear of losing that positioning.

When used in its wireless configuration we did find that occasionally there were moments of lag on the live feed. While these were only minor interruptions, it was certainly something that had to be considered when making any adjustments to the magnification and focus.

Leaf: (a) Normal mode, (b) with Extended Dynamic Range

Seed pod: (a) Normal mode, (b) with Extended Depth of Field

Acorn: (a) Normal mode, (b) with Extended Dynamic Range, (c) with Extended Depth Of Field

Our Opinion

Although we only used the WF4915ZT on a few select samples, it offered us a great opportunity to learn how to operate this advanced USB microscope. Thankfully the literature provided with the microscope was clear and easy to follow, and within 15 minutes of opening the box I was able to install the software and connect to the device in both its wireless and wired configurations. The image quality and the benefits offered by its advanced settings were also hugely impressive, particularly the EDOF, which really stands out as a key feature for this microscope.

While the wireless functionality of this microscope was a very interesting feature of the WF4915ZT, in practice it is not necessarily universally valuable. In the study of Natural History for example, most microscopy happens at a desk on pre-prepared specimens and as such you do not need the greater manoeuvrability that a wireless microscope offers. In other trades, however, these digital microscopes are used to inspect large objects (e.g. automobile manufacture) and in these situations a lack of trailing wires would be of huge benefit for the operator. In a situation where the operator does not have access to a computer/laptop, the Wi-Fi module allows you to connect to the microscope using a tablet or a smartphone, which is especially useful if you are planning to use it in the field.

In summary, we would highly recommend the WF4915ZT for any hobbyist or professional looking for a high quality and portable USB microscope. The AF4915ZT would be an excellent (and more economical) alternative for those who are unlikely to use the device away from a desk.

The Dino-Lite WF4915ZT is available through the NHBS website.

To view our full range of USB microscopes, visit www.nhbs.com. If you have any questions about microscopy or would like some advice on the right product for you then please contact us via email at customer.services@nhbs.com or phone on 01803 865913.

How to Clean a Nest Box

Over time nest boxes can become home to parasites such as lice, fleas and mites, so giving them a thorough clean at the end of each breeding season is good practice to ensure the health and safety of the birds nesting there. Removing old nest material also means that the following year’s birds can build their own nest as far as possible from the box entrance hole, thus reducing the risk of predation.

When to clean your nest boxes

The best time to clean out your nest boxes is in the autumn, after any young birds have fledged. Any time between September and January is fine, but bear in mind that birds who have raised a late brood may still be occupying boxes throughout September. By cleaning boxes during October or early November, you will also be able to leave them undisturbed for birds to roost in during the winter. Unhatched eggs may only be legally removed between 1^st September and 31^st January (or 1^st August and 31^st January in Scotland) and any eggs must be destroyed.

What you need

• Rubber gloves
• Stiff brush or nest cleaning tool
• Boiling water
• Wood shavings/clean hay (optional)

What to do

1. If possible, remove the box from the tree/wall so that you can safely work at ground level.
2. Wearing rubber gloves, remove old nesting material from the box, along with any unhatched eggs. Eggs must be disposed of – it is illegal to keep them. If possible, try to remove the nest in one piece, as it is fascinating to study the structure and to see the variety of materials that have been used in its construction. This is a great thing to do with children!
3. Use a nest cleaning tool or stiff bristled brush to clean out any remaining debris from the box corners.
4. Use boiling water to kill any lice, fleas or parasites. Don’t use soap, insecticides or flea powders as the residues of these can be harmful to birds. Leave the box open, preferably in a sunny spot, so that it can dry out.
5. Placing some clean hay or wood shavings in the base of the box may encourage mammals to hibernate or birds to roost in the box over winter. This is not essential, however, and any nesting birds arriving in the spring will bring in their own nest-building material.

Cleaning Bird Feeders

While you’re in the garden cleaning your nest boxes, why not take the opportunity to clean out your feeders and bird table too, ready for use over the winter. To thoroughly clean a bird feeder, first empty out all of the old food. Mix up a solution of animal-safe disinfectant in a bucket and soak the feeders for 10-15 minutes. Use a bottle brush to scrub them then rinse thoroughly in cold water. Leave feeders to dry before refilling.

Health and Safety

By following a few simple guidelines you can make sure that both the birds’ and your own health are not compromised. Always wear rubber gloves when cleaning out your nest boxes and feeders and make sure to wash your hands and forearms well with hot soapy water when you have finished. Take care not to breathe in any of the dust when emptying out the remains of old nests. Both nest boxes and feeders should be cleaned outside rather than bringing them into the house. If possible, nest boxes should be removed for cleaning, as dealing with boiling water while perched at the top of a ladder is not advisable. All brushes and equipment used for cleaning boxes, feeders and bird tables should be cleaned after use and should only be used for this purpose.

Visit nhbs.com to see our complete range of nest boxes, feeders and bird tables.

BES Summer School Guest Blog: Part Two

This post continues the series of guest blogs written by students from the BES Undergraduate Summer School 2020. In this, the second installment, Kira Prouse discusses the gases responsible for the smell of the sea and their role in marine ecosystems.

Kira Prouse

How plankton are responsible for the smell of the sea

The smell of the seaside is distinctive and elicits nostalgic memories for many people. It may be a surprise when you learn this charismatic smell is actually made up of a cocktail of gasses from phytoplankton and bacteria in the ocean’s surface waters! The smelliest of these gasses is Dimethyl Sulphide.

Dimethyl Sulphide, shortened to DMS, starts as DMSP or Dimethylsulfoniopropionate (a bit of a tongue twister!) and is broken down into DMS when the cell containing it dies, and the chemical is released into the water column. DMSP is thought to help with:

• Allowing cellular reactions to continue in polar regions with freezing conditions.
• It acts as a natural sunscreen, protecting against harmful chemicals produced by high light or ultraviolet radiation.
• It allows for survival in saline oceans by regulating DMSP concentrations to match the salinity of the surrounding environment.
• Herbivore deterrent – DMSP and DMS may be produced by algae to make them herbivore deterrents and reducing grazing damage.

Many animals, including birds, turtles and marine mammals, use the smell of DMS in order to find areas rich in food. In an otherwise vast and featureless ocean, the scent of DMS could hint at bathymetric features like upwelling zones and seamounts (areas known for their high productivity). As DMS is released when the cell dies, this could happen when the algae or phytoplankton are grazed by zooplankton, which would appeal to animals such as albatrosses who have a very good sense of smell. Unfortunately, as plastics are continually polluting the oceans, DMS particles cling to the surface of the plastic and make it smell appealing to any animal attracted to the scent of DMS. This means more plastic is being injested by birds because it smells like a tasty meal.

Not only does DMS have an ecological benefit, it also has an impact on how the climate is regulated. DMS stimulates the formation of cloud seeding particles and thus the formation of clouds. DMS leaves the surface of the water where, in the atmosphere, it oxidises into a number of compounds including sulphur dioxide (a cloud condensation nuclei). These particles mix with the evaporated water from the ocean and form clouds. This is important because clouds play a role in the amount of solar radiation reaching the Earth’s surface. Some clouds reflect the solar radiation and prevent the rays reaching the surface, having a cooling effect. Other clouds trap heat from the Earth’s surface, having a warming effect.

The more we understand about DMS the better we will understand how climate is regulated and how it will be affected by climate change. There are still unanswered questions about why some algae produce more DMSP than others and whether this affects concentrations seasonally. This also means that concentrations could vary geographically too. To help find out, NERC are collaborating with The University of East Anglia to investigate DMSP in the English Channel over the span of a year.

This blog post was inspired by the Plymouth Marine Laboratories coffee break science series.

BES Summer School Guest Blog: Part One

This year, NHBS was proud to sponsor the BES Undergraduate Summer School.

This annual event is open to undergraduate students studying in their 1st or 2nd year at a UK or Irish university. The week-long programme provides training in a range of practical, ecological skills alongside networking events and career workshops.

Due to Covid-19 the 2020 Summer School was conducted online. As one of their tasks, students were asked to write a blog article on a subject of their choice. We are pleased to feature a number of their submissions here on the NHBS blog. The first, by Hannah Coburn, looks at the timing of breeding and migration in birds and how the changing climate can impact this.

Hannah Coburn

Changing Times

Phenology refers to the timing of key life events in organisms, which play an important part in every species’ ecology [1]. The phenology of birds, including the timing of breeding and migration, is a well-studied field due to its popularity and ease with which it can be studied [2]. Many bird species have evolved to court, nest, mate and, in some cases, migrate at precise times of the year, in order to coincide with ideal conditions and the height of availability of crucial food sources [1]. However, the changing climate is beginning to disrupt these intricate balances.

Different organisms are acclimatising at different rates to the changing climatic conditions, and this dissonance can be catastrophic for breeding birds, particularly migratory species [3]. For example, if trees begin to produce leaves earlier, the invertebrates that feed on their leaves begin to emerge sooner, and if birds relying on these invertebrates do not lay their eggs earlier in the season, they may miss the peak of the insect abundance and be unable to feed their chicks [1].

Figure by Hannah Coburn. Caterpillar image: animalsake.com, Blue Tit image: RSPB.

The loss of synchrony between the phenology of birds and the species they interact with is already having a variety of consequences. A study in the Netherlands examining the potential impact of climate change on two woodland bird species [3] found that Great Tits, a resident species, respond to temperature changes faster than Pied Flycatchers, a migratory species. This is due to the Tits being able to respond to local temperatures and food availability while the Flycatchers are restricted by the time at which they arrive in spring. It was also predicted that migratory birds may suffer as a result of heightened interspecific competition caused by higher numbers of resident birds surviving milder winters.

Some bird species have already been proven to have advanced the times at which they migrate, in response to increasing global temperatures. A large study of migration data from European and North American bird observatories [4] discovered that birds now migrate on average a week earlier than they did in the late 1950s. While some birds have remained relatively consistent in the times in which they migrate, some species such as the Goldeneye, a diving duck, are now migrating as much as two weeks earlier than they did just forty years ago. Juvenile birds, under less pressure to reproduce, showed little change in migration timing. Another study [5] that analysed global migration data covering almost three centuries and over 400 species found that, on average, birds had migrated two days earlier (in spring) per decade and 1.2 days per degree (Celcius) of global temperature rise. They also noted that generalist species had responded faster to climatic shifts than species that had more specialist niches.

Even in my home town, I have noticed migrants such as Swallows and Swifts arrive earlier and earlier. Is it because the birds migrate in response to certain temperatures, which are coming earlier in the season? Is it because individuals that migrate sooner are now more likely to survive and so this trait or behaviour is becoming more common? We are yet to uncover all the intricacies of bird migration. Like any other aspect of biology affected by climate change, it is the species that adapt fastest that will survive. Sadly, if we fail to prevent runaway climate change, the birds that are unable to synchronise their phenology to the new normal may be lost forever.

References

Rubenstein, M. (2017). When timing is everything: migratory bird phenology in a changing climate. S. Geographical Survey.
Gordo, O. & Sanz, J. J. (2006). Climate change and bird phenology: a long-term study in the Iberian Peninsula. Global Change Biology.
Samplonius, J. M. & Both, C. (2019). Climate Change May Affect Fatal Competition between Two Bird Species. Current Biology, 29(2):327-331.
Learn, J R. (2019). Climate change has birds migrating earlier. The Wildlife Society.
Usui, T., Butchart, S. H. M. & Phillimore, A. B. (2016). Temporal shifts and temperature sensitivity of avian spring migratory phenology: a phylogenetic meta?analysis. Journal of Animal Ecology, 86(2).

Author Interview with Ian Parsons, A Vulture Landscape: Twelve Months in Extremadura

Vultures are a crucial part of many of the world’s ecosystems, and without these specialist environmental cleansers many ecosystems wouldn’t function. In A Vulture Landscape we share a calendar year in the lives of these gargantuan raptors as they live, breed, feed and fly with effortless ease across the skies of the vulture landscape that is Extremadura in central Spain.

Author, Ian Parsons visited us at NHBS to answer some questions about these often maligned birds and also *signed a limited amount of copies of his new book.

*All signed copies have now sold

Could you tell us a little about your background?

I was born and grew up in Devon in south west England, as I grew up I became more and more interested in the natural world, I can remember becoming fascinated by slow worms when I was around seven years old, although I also remember my mum’s slightly horrified reaction when I happily brought one into the house to show her. I wanted to be a Ranger from an early age and after a countryside management course at college I became one for twenty years. When the time was right for a change, myself and my wife moved to Extremadura in Spain where we set up Griffon Holidays, running specialist bird tours in this amazing region that I had first discovered almost twenty years before.

Why did you chose to write about vultures?

Because they are brilliant! I am a massive natural history fan and geek and I’m passionate about all types of wildlife, I would say that trees and birds are my two main interests and when it comes to birds there is nothing like a vulture. Watching birds with a nigh on three metre wingspan gliding right past you is an amazing experience, they are masters of the air and take flight efficiency to the extreme, they can read the air and its movements and to watch them is mesmerising. In the book I mention several times how my favourite past time is Vulture Gazing, just sitting back and watching them drift across the blue sky above you, it is a great way to declutter your mind, everyone should vulture gaze!

What’s special about Extremadura and its fauna and flora?

Extremadura is a region in western Spain, it is roughly twice the size of Wales, but with only one third of the human population, it is relatively empty of people and full of amazing wildlife. It has long been known as a bit of a destination for birders and rightly so. There are Great and Little Bustards, two species of Sandgrouse, colourful stars such as the Blue Rock Thrush, Roller and Bee-eater, NHBS’s very own Hoopoe is abundant and then there are the birds of prey, five species of eagle, three species of kite, falcons, harriers etc. And of course there are the vultures, the Griffon Vulture, Black Vulture and Egyptian Vulture, the skies always have something interesting in them.

Spending time on the flower rich plains in the spring listening to the wall to wall surround sound song track of abundant larks whilst raptors drift by overhead is one of life’s pleasures.

What were the major challenges you faced while writing your book?

I think the biggest difficulty is knowing when to stop! When you are passionate about something it is very easy to get carried away.

What impact has Covid had and will continue to have on eco-tourism?

It has had a massive impact. I had to cancel the tours for 2020 which were fully booked, personally it is heart breaking to have to tell people that their trip which they had been really looking forward to is off. But everybody knew why the decision had to be made. I always put the clients up in a lovely Spanish town in a local family run hotel, they are lovely people and they are having to endure a really bad situation. As to the future? Who knows, the situation is so unclear at the moment, it is impossible to make any real plans.

Is it fair to say that vultures have a bit of an unfair reputation?

Vultures are associated with death, it’s what they do, they are scavengers and they eat dead things. We humans don’t like the subject of death, we actively avoid it and therefore anything that is associated with it tends to be seen in a negative light. But vultures need to be seen in a positive light, many of the world’s vulture species are critically endangered, the last category before extinction, they are in that position because of us. Vultures do an incredible job, they are nature’s environmental cleansers and they help keep ecosystems healthy and functioning, they can deal with diseases like bovine TB, rabies and even anthrax, they remove these diseases before they can become a threat to us, they help keep people safe. We should celebrate them and most certainly enjoy them, I hope my book will go some way to helping improve the image of these brilliant birds.

Recently a Bearded Vulture has had an extended stay in Britain, is this normal?

It’s not normal, it is only the second time that one of these majestic birds has been recorded in Britain (in 2016 one briefly visited Devon and South Wales). Vultures are not native to Britain, the climate for one thing is not conducive to them and it is noticeable that after an extended stay in the Peak District the bird has started moving south and east again now that the seasons are changing. Their appearance is the result of some fantastic conservation work carried out in the Alps where the bird has been successfully reintroduced after being persecuted to extinction over one hundred years ago. The new population is absolutely booming, and wild born young are being born in good numbers each year, in 2019 39 young successfully fledged. Vultures like the Bearded don’t breed until they are around five years old and after they become independent the young birds like to wander. For a vulture, distance is rather irrelevant, they often fly several hundred kilometres in a day’s foraging, and it is one of these young birds that has turned up in Britain this year, but the bird is just an avian sightseer and hopefully it will return safely to its natural range before very long. Whilst it will remain unusual for these birds to turn up in Britain on their travels, the continued success of the conservation work in the Alps means that there will be a chance that other wandering young will follow in the future.

After a well-earned rest, are there any plans or works-in-progress that you can tell us about?

I am currently involved in a great new project that aims to rewild your inbox! Purple Crow sends out a mixture of great photography and great writing to your inbox throughout the week, the idea is to inspire people with stunning images and inspiring words, see purplecrow.co.uk for more details. Book wise I am working on a book looking at the wildlife of Britain through the seasons.

A Vulture Landscape: Twelve Months in Extremadura
By: Ian Parsons
Paperback | October 2020| £15.99 ~~£17.99~~

Readers can enter the world of the vulture, get to know these amazing birds and learn how they control diseases that threaten us, why some species have bald necks, as well as how they have mastered the art of flying without expending any energy.

All prices correct at the time of this article’s publication.

Froglife: Interview with CEO Kathy Wormald

Kathy Wormald, CEO of Froglife, recently took the time to talk to us about the national charity dedicated to the conservation of amphibians and reptiles. In this insightful and inspiring conversation we talk about some of the threats facing amphibians and reptiles, the ways in which Froglife are addressing these challenges, how Covid-19 is affecting them as a charity, and share simple ways in which you can get involved with amphibian and reptile conservation.

Firstly, can you give us a brief introduction to Froglife and your main goals for amphibian and reptile conservation.

Froglife is a wildlife conservation charity with a specific focus on the UK’s native reptiles and amphibians and their habitats. We are a practical organisation working on the ground improving sites for our species such as creating wetland habitats, improving grasslands and woodlands and monitoring our species and their habitats. Central to our ethos is to ensure that as many people as possible, from all walks of life, are able to contribute to nature conservation. We deliver our work through three work programmes: Transforming Landscapes, Transforming People and Transforming Research.

If your wildest dreams could be realised, what would you wish for amphibian and reptile populations, both in the UK and internationally?

To stop decline of amphibian and reptile populations. Internationally amphibians are declining at a faster rate than birds and mammals. To put as much focus on conserving common species as is put on rare species. The lack of emphasis for common species means that many are no longer common. In the UK I would stop the decline of our iconic common toads, decline rates of 68% over the past 30 years. Froglife does have a big focus on common toad conservation but we need to get the whole country behind us.

One of the main problems faced by amphibians and reptiles is mortality and habitat fragmentation due to roads. Can you tell us about the Wildlife Tunnel Campaign and how it hopes to address this problem?

New property developments require roads and these roads often run through sites that are used by wildlife, if they are protected species then action will be taken to try to help the species, however for non-protected species such as common toads, often no action is required. A lot of wildlife migrate across sites as do common toads. Common toads will migrate to their hereditary breeding pond each year and back to their hibernation sites later in the year. This migration often involves toads having to cross roads, in some cases more than one road intersection. Wildlife Tunnels provide a link between the broken site with wildlife being directed with fencing to cross under the road instead of on the road. We are asking people to sign up to our campaign to ensure that all new developments that will have roads running through wildlife sites must install Wildlife Tunnels (see image at bottom of page for more info). These tunnels need to be monitored and maintained at the cost of the developer.

What would you consider to be Froglife’s greatest success stories so far?

The people we help to get involved in wildlife conservation, often working with very disadvantaged communities who don’t get the chance to help nature and who live in nature deficient neighbourhoods, their actions help to improve lots of green spaces in neighbourhoods. The amount of successful habitat works that we do that benefit nature and people. The Toads on Roads patrols that Froglife co-ordinates. The many innovative initiatives that we have developed such as our Wildlife Tunnel Exhibition and Virtual Reality Experience and the Wildlife Visualiser App. Opening up new revenue streams for the sector by highlighting to donors that nature conservation does have social benefits and should be funded by social donors as well as those focusing on the environment.

The Covid-19 pandemic has created a huge number of unforeseen challenges for everyone this year, charities included. How have you been affected and what measures have you taken to deal with the current situation?

Some of our projects couldn’t deliver activities during Covid-19 which meant that many of our beneficiaries didn’t have the opportunity to get involved. Our finances were impacted by the withdrawal of a lot of grant schemes. We face an uncertain future not knowing of further Covid-19 restrictions and funding opportunities. We took very decisive and quick action to deal with the situation. We developed lots of online content and delivered sessions, workshops and training courses online. We even managed to keep our work with people living with dementia going which meant that at least this group of people were supported during very trying times for them. We successfully secured Covid-19 emergency funding. We have restructured the organisation to ensure that we are harnessing the skill set of all of our staff to help us get through this.

What advice would you give to someone wanting to become more involved with amphibian and reptile conservation in the UK?

There are many different ways in which people can become more involved: volunteering is great experience for the individual but also helps us so much with our work. There are plenty of varied volunteering opportunities, either getting outdoors and involved with physical site works, helping with our education work, research or fundraising for us. People can also attend our training courses, they are widely promoted on our website and via social media.

You can find out more about Froglife from their website and by following them on Facebook and Twitter.