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Posts by Ruedi Nager

Come and work with us at IBIS and BOU!
Exciting job opportunity in #ornithology

1 month ago 13 11 0 0

A climate-induced reduction in sandeel length in the North Sea could result in a decline in calofiric value (energy content) per fish of ca. 40% with significant consequences for #seabirds that depend on them @sbohvm.gla.ac.uk

doi.org/10.3354/meps...

3 months ago 6 3 0 0
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Fantastic to see this outcome of Francis’ internship at @sbohvm.gla.ac.uk being out now

Increased foraging effort in poor-food years is related to nutritional state (fat metabolism) in Peruvian Boobies

#seabirds #ornithology

doi.org/10.1007/s002...

4 months ago 13 10 0 0

Lovely blog from one of @sbohvm.gla.ac.uk student-led summer expedition adding to long-term monitoring of #seabird in Iceland since 2014 #ornithology

5 months ago 0 0 0 0
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How are movement patterns affected by energy expenditure & gain, and what does it mean for fitness? This @iapetusdtp.bsky.social PhD opportunity will use data on movement & demography of kittiwakes & spatio-temporal food abundance across their range

iapetus.ac.uk/studentships...

#ornithology

5 months ago 13 11 0 1
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To understand effects of climate change on fish size we need to account for both direct physiological effects & changes in resource availability. Turbidity (via its impact on intake rates in visual foragers) may also impact sandeel size. www.int-res.com/abstracts/me...

5 months ago 5 4 1 0
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EARLY VIEW in IBIS

Breeding and foraging habitat are important in determining foraging ranges of sympatric generalist species | onlinelibrary.wiley....

Chris B. Thaxter et al | #ornithology 🪶

6 months ago 4 6 0 0
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⏰ EARLY-BIRD RATES TO 30 SEPT

Register now for reduced rates at #BOUasm25

A day at the museum | 18 Nov 2025 | Natural History Museum, London

➡️ BOU member discounts
➡️ In-person & online
➡️ Visit Tring collections

bou.org.uk/event/a-d...

Keynote 🧵 ⬇️

#ornithology 🪶

7 months ago 6 9 1 1
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More intense human-caused heat extremes have reduced terrestrial bird abundance - in particular in the tropics - more than other human pressures
#ornithology
doi.org/10.1038/s415...

8 months ago 9 7 0 0

📢 CALL FOR ABSTRACTS! 📢

#BOU2026 | Birds and people | 31 March - 2 April 2026 | University of Nottingham | Zoom & Bluesky

Take a look at the keynote lineup and submit your abstract now!

bou.org.uk/event/bir...

#ornithology

8 months ago 1 3 0 0
Taxonomic distribution of all banded seabirds that were recorded in the North American Bird Banding Program dataset (1930–2023) as having died from colliding with anthropogenic structures. Recovery rate is defined as the number of collision-associated recoveries per 100,000 birds banded. Bird silhouettes generated by PhyloPic (Keesey 2024).

Taxonomic distribution of all banded seabirds that were recorded in the North American Bird Banding Program dataset (1930–2023) as having died from colliding with anthropogenic structures. Recovery rate is defined as the number of collision-associated recoveries per 100,000 birds banded. Bird silhouettes generated by PhyloPic (Keesey 2024).

There's a new guest post on the WOS blog! Riley Lawson describes the backstory of his recent paper in The Wilson Journal of #Ornithology, which documents the underappreciated threat that collisions with anthropogenic structures pose to #seabirds. wilsonsociety.org/2025/07/28/g...

8 months ago 17 12 1 0
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Some like it hot: Elevated heating capacity of carotenoid-containing contour feathers compared to melanized feathers and of rural over urban feathers | journals.sagepub.com... | Avian Biology Research | #ornithology 🪶

10 months ago 17 4 0 0

#ornithology #seabirds

10 months ago 3 1 0 0
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Manx Shearwaters show flexible migration visiting lower latitudes during non-breeding in El Niño years and experience cascading carry over effects on subsequent breeding behaviour #ornithology royalsocietypublishing.org/doi/10.1098/...

1 year ago 13 6 0 0
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Had great fun to write this paper with Pralle Kriengwatana, @amsouth.bsky.social, Marin Ullrich & emilydoolittle.bsky.social on how animals respond to music & what needs to be reported in future to better understand their responses #AnimalWelfare @uofgsbohvm.bsky.social
doi.org/10.1016/j.an...

1 year ago 12 2 0 0
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📢 APPLICATIONS ARE NOW OPEN...

...for the BOU Summer Placement Scheme

Financially supporting undergraduate students to carry out summer #ornithology research placements

Application deadline: 31 March

Guidelines & application form: bou.org.uk/funding/s...

🪶 #ukbirds

1 year ago 28 32 0 4
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EARLY VIEW in IBIS

Using model-based distance sampling to estimate decadal population change in Northern Gannets (Morus bassanus) across periods spanned by different at-sea survey methods | onlinelibrary.wiley....

T.J. Clark-Wolf et al | #ornithology #seabirds 🪶

1 year ago 19 6 0 0
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Urban life of an elusive species: population trends, movement patterns, foraging habitats, and prospecting in Mediterranean Gulls (Ichthyaetus melanocephalus) breeding in Hamburg, northern Germany Journal of Ornithology - The lower River Elbe, including Hamburg, is part of a distribution hotspot for Mediterranean Gulls in northwest Europe. We studied local population trends and foraging...

Urban life of an elusive species: population trends, movement patterns, foraging habitats, and prospecting in Mediterranean Gulls (Ichthyaetus melanocephalus) breeding in Hamburg, northern Germany | link.springer.com/ar... | Journal of Ornithology | #ornithology 🪶

1 year ago 12 5 0 0
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IBIS Special Issue | Citizen Science

Using citizen science image analysis to measure seabird phenology | onlinelibrary.wiley....

@aliceedney.bsky.social et al | #ornithology #seabirds 🪶

1 year ago 10 8 0 1
Great Skua in Shetland
https://commons.wikimedia.org/wiki/File:Bonxie_aka_Great_Skua_(Stercorarius_skua),_Hermaness_-_geograph.org.uk_-_6509392.jpg

Great Skua in Shetland https://commons.wikimedia.org/wiki/File:Bonxie_aka_Great_Skua_(Stercorarius_skua),_Hermaness_-_geograph.org.uk_-_6509392.jpg

New in #BirdStudy
#Seabirds Count shows 73% decline in Great Skuas after bird flu.

Declines in UK breeding populations of seabird species of conservation concern following the outbreak of high pathogenicity avian influenza (HPAI) in 2021–2022 (Tremlett et al.) doi.org/10.1080/0006...
#ornithology

1 year ago 90 49 3 1

Considering infrared radiation may be necessary for a better understanding of animals' colouration diversity and possible responses to thermal challenge.

bsky.app/profile/bior...

1 year ago 2 0 0 0
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Why gulls don't deserve the hate There’s a lot we get wrong about our least favorite seabirds

"Gulls are intelligent, vital birds that deserve our protection, not scorn"
www.salon.com/2024/10/20/g...

1 year ago 110 30 2 4
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‘Blob’ heat wave killed millions of seabirds—and they haven’t bounced back Historic 2016 event may have permanently altered northern Pacific ecosystem

Common Guillemots suffered catastrophic losses following a marine heat wave in 2015 and 2016, and may have permanently altered northern Pacific ecosystem
www.science.org/content/arti...
#ornithology #seabirds

1 year ago 53 35 0 1
Announcement for a Conservation scholarship for Tanzanian nationals at the University of Glasgow, deadline January 5, 2025

Announcement for a Conservation scholarship for Tanzanian nationals at the University of Glasgow, deadline January 5, 2025

Since 2016 we have been fortunate to host Tanzanian conservation leaders thru the Karimjee MSc Conservation scholarship at the Univ Glasgow, a full ride 2-year scholarship, generously supported by a local Tanzanian NGO the Karimjee Foundation. Please help us spread the word to potential applicants!

1 year ago 5 7 3 1
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Starter packs BIOLOGY General Science community https://go.bsky.app/HVYAMEA Research Institutions in Life Sciences https://go.bsky.app/LxXpcvJ LGBTQIA+ in STEM https://go.bsky.app/BFc4wgf LGBTQIA+ in STEM 2 h...

Thank you so much to whoever put this very comprehensive list of #science Bsky starter packs together. This is just amazing: docs.google.com/document/d/1...

1 year ago 569 317 49 37
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First record of a large breeding colony of the Lesser Black-backed Gull Larus fuscus in mainland Africa | www.tandfonline.com/... | Ostrich | #ornithology #seabirds 🪶

1 year ago 53 7 0 2
Image of two Gannets alongside the wording: Seabird Monitoring Programme. Seabirds Population Trends and Causes of Change: 1986-2023. SMP logo top right of image. BTO, JNCC, and ‘in association with’ RSPB logo bottom right.

Image of two Gannets alongside the wording: Seabird Monitoring Programme. Seabirds Population Trends and Causes of Change: 1986-2023. SMP logo top right of image. BTO, JNCC, and ‘in association with’ RSPB logo bottom right.

Out now!🔊 The SMP Report provides an overview of the status of the UK’s breeding #seabirds since 1986. It further highlights declines as shown by the recent Seabirds Count, a census of Britain & Ireland’s seabirds.

Read the report➡️ www.bto.org/smp-publications @rspb.bsky.social #Ornithology

1 year ago 89 48 1 2
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Conservation Scientist (Fixed-Term) | RSPB The RSPB Centre for Conservation Science is responsible for the science that informs delivery of the RSPB’s conservation programmes for species, habitats and landscapes. We are seeking a Conservation ...

Do you like #petrels, islands and data analysis? Well the RSPB’s Conservation Scientist role could be the one for you!

Deadline closing very soon (20 Nov) ⚠️

Please get in touch if you have any questions #seabirds #ornithology

app.vacancy-filler.co.uk/salescrm/Car...

1 year ago 29 21 0 0