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Andreas Ravache

@andreasravache.bsky.social
91 followers 141 following 25 posts

PhD in Population Biology and Ecology | Postdoc @mnhn.fr 🇫🇷 Windfarms impact | Seabirds Ecology | Biologging | Biostatistics | Stable Isotopes | Co-funder of @birdnewcaledonia.bsky.social

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Reposted by Andreas Ravache
Bat Research Team @bat-cesco.bsky.social · 05/11/2025
[NEW PAPER] What a surprising behavior ! 🦇Greater noctules (𝘕𝘺𝘤𝘵𝘢𝘭𝘶𝘴 𝘭𝘢𝘴𝘪𝘰𝘱𝘵𝘦𝘳𝘶𝘴) soar above 400 meters, using echolocation to chase and snatch nocturnal migratory passerines mid-flight—unlocking a high-altitude feast most predators can’t reach. #batresearch #bioacoustics
science.org
Greater noctule bats prey on and consume passerines in flight
Despite billions of passerines seasonally migrating during the night at high altitudes, only three bat species have been found to consistently tap into this rich prey resource. However, it remains unk...
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Reposted by Andreas Ravache
Steffen Oppel @steffopp.bsky.social · 04/11/2025
NEW JOB in #ornithology and #conservation to track #seabirds from Rathlin Island and analyse data to identify foraging areas (deadline 10 Nov): buff.ly/K0zcdH8
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Reposted by Andreas Ravache
Dr Alex Bond @thelabandfield.bsky.social · 25/10/2025
Hey seabird folks - have you ever thought "*ANOTHER* talk about <species X>?!" So did we. So we reviewed 3000 conference abstracts to see which species get the spotlight. Huge work from @ingridpollet.bsky.social with me and @seabirdsentinel.bsky.social www.sciencedirect.com/science/arti...
Perspective
Who gets the spotlight? Disparities in seabird research attention at scientific conferences
Ingrid L. Pollet a b
Alexander L. Bond b c
Jennifer L. Lavers b c d
Highlights
• Decade-long review of >2,950 seabird conference abstracts.
• Over 30% of seabird species are rarely or never featured at scientific conferences
• Several seabirds listed as Critically Endangered have received little or no attention.
• 16 seabird species are over-represented in conferences.
• Southern Hemisphere seabirds require greater research attention.
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Reposted by Andreas Ravache
Bat Research Team @bat-cesco.bsky.social · 15/10/2025
[ NEW TEAM PAPER ] 🦇🎤 Passive acoustic monitoring of 𝗯𝗮𝘁𝘀 holds huge potential, but how do bat counts correlate with actual numbers? Which factors affect detectability? New metrics & models could revolutionize our understanding. Time to standardize protocols & share data! #BatResearch #Bioacoustics
besjournals.onlinelibrary.wiley.com
Current frontiers in the passive acoustic monitoring of bats
Passive acoustic monitoring of bats is used in a growing number of studies in applied and basic research, from local to global scales. Despite the publication of good-practice recommendations, sev...
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Andreas Ravache @andreasravache.bsky.social · 09/10/2025
🦇A new article from our research team ! 🔍This time, we used 3D acoustic tracking of bats to study their behaviour when foraging alone, in presence of conspecifics or heterospecifics. 🎯A very interesing way to explore the optimal foraging theory under different scenarios.
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Reposted by Andreas Ravache
Wilson Ornithological Society @wilsonornithsoc.bsky.social · 28/07/2025
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...
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).
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Andreas Ravache @andreasravache.bsky.social · 29/07/2025
[ #Seabirds influence vegetation ] 👩‍🔬 Isotopes & nutrients were compared at an active, abandoned, and control shearwater site 📈 Vegetation & herbivores showed δ¹⁵N enrichment from guano, but soil δ¹⁵N remained unchanged 🏝️Phosphorus and potassium concentraitons suggest that seabirds fertilize soils
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Reposted by Andreas Ravache
Elina Mäntylä @elinamantyla.bsky.social · 25/07/2025
Bertram et al. Mercury levels in chicks of a long-lived seabird – parental effects and links with growth and survival www.sciencedirect.com/science/arti... #ornithology #seabirds
sciencedirect.com
Mercury levels in chicks of a long-lived seabird – parental effects and links with growth and survival
Environmental mercury levels continue to rise, leading to increased exposure, especially in long-lived species at high trophic positions, such as many…
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Reposted by Andreas Ravache
Elina Mäntylä @elinamantyla.bsky.social · 25/07/2025
Sanz-Aguilar et al. Rat Odour Does Not Repel European Storm Petrels Hydrobates pelagicus bioone.org/journals/ard... #ornithology #seabirds
bioone.org
Rat Odour Does Not Repel European Storm Petrels Hydrobates pelagicus
Las aves marinas en general, y los petreles en particular, presentan múltiples problemas de conservación. Los depredadores invasores son su principal amenaza en las colonias de cría. Las ratas son los...
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Andreas Ravache @andreasravache.bsky.social · 22/07/2025
[ 𝑺𝒄𝒊𝒆𝒏𝒄𝒆 𝑼𝒏𝒅𝒆𝒓 𝑷𝒓𝒆𝒔𝒔𝒖𝒓𝒆 ] 🔍 While most researchers report positive interactions that facilitate the transfer of their findings, interactions within the wind energy 💨 and agrochemical sectors 🚜are more often negative ⛔ especially when the research conflicts with political or economic interests 💶
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World Seabird Union @worldseabirdunion.bsky.social · 20/07/2025
To protect wildlife as offshore wind grows, we need the best ecological data. Monash University researchers created a practical guide to seabird flight—how high, how fast & when they fly. 📄 Journal of Applied Ecology: bit.ly/4eXfqQw #Seabirds #ClimateAndNature
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Andreas Ravache @andreasravache.bsky.social · 18/07/2025
🍽️𝐀 𝐧𝐨𝐧-𝐢𝐧𝐯𝐚𝐬𝐢𝐯𝐞 𝐦𝐞𝐭𝐡𝐨𝐝 𝐭𝐨 𝐬𝐭𝐮𝐝𝐲 𝐝𝐢𝐞𝐭 ! The authors combined buccal swabbing and metabarcoding to investigate the diet of #Seabirds species. This method appears to be minimally invasive and relatively easy to implement. A complement to approaches based on regurgitates or fecal samples?
onlinelibrary.wiley.com
Advancing Seabird Diet Studies Through Buccal Swabbing for DNA Metabarcoding
Determining the diet of wide-ranging, pelagic seabirds is challenging. In this study, we investigated buccal swabbing and DNA metabarcoding to describe the diet of Manx shearwaters (Puffinus puffinus...
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Andreas Ravache @andreasravache.bsky.social · 17/07/2025
🎉New paper out! My first as last author 🔗http://www.marineornithology.org/PDF/53_1/53_1_1-11.pdf 🧵 Let me walk you through years of research on a rare, elusive & endangered #Seabirds : the Tahiti petrel A story of exploration, discovery, and challenges in conservation science👇 📷Hadoram Shirihai
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Andreas Ravache @andreasravache.bsky.social · 17/07/2025
🍽️🐦 Proteomic studies reveals that #Seabirds with plastic in their stomachs had signs of neurodegenerative disease, kidney and liver disease as well as damage to the lining of the stomach ☠️While not always lethal, microplastics will undoubtedly have long-term effects on populations.
science.org
Seabirds in crisis: Plastic ingestion induces proteomic signatures of multiorgan failure and neurodegeneration
Plastic consumption in seabirds causes blood signatures of widespread organ damage including brain, stomach, kidney, and liver.
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Reposted by Andreas Ravache
Kogo Shuko @kogoshuko.bsky.social · 24/06/2025
Common Murres sitting on a rock covered in, well... common murre poop. #birds #newfoundland #seabirds
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Andreas Ravache @andreasravache.bsky.social · 12/06/2025
[𝑪𝒐𝒏𝒇𝒆𝒓𝒆𝒏𝒄𝒆] Thrilled to share the first results of our APOCOPE project at the Renewable Energy & Biodiversity conference in Paris! A great opportunity to highlight our work on wind farms and wildlife. 🌬️🦇🌿
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Andreas Ravache @andreasravache.bsky.social · 11/06/2025
❗[OUT OF THE PRESS]❗ The authors collected distribution data from 57 seabird taxa, revealing seabird hotspots outside the existing ecological network 🐦🌐 Both methods and results worth a look ! #seabirds #conservation #marinebiology www.sciencedirect.com/science/arti...
sciencedirect.com
Mismatches between the current marine Natura 2000 network and seabird distributions call for enhanced protected areas off metropolitan France
Seabirds are among the most threatened vertebrates, under pressure from fisheries bycatch, climate change, overfishing, and human disturbance. In Fran…
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Reposted by Andreas Ravache
Bat Research Team @bat-cesco.bsky.social · 14/05/2025
🦇 Greater sac-winged bat pups acquire their vocal repertoire through a conspicuous vocal practice behavior reminiscent of babbling in human infants. Pups spend about 30% of their daily activity time babbling – and it turns out that mothers influence this behavior. elifesciences.org/articles/99474
elifesciences.org
Maternal behavior influences vocal practice and learning processes in the greater sac-winged bat
Non-tutorial feedback shapes song acquisition in a mammalian vocal learner.
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Andreas Ravache @andreasravache.bsky.social · 16/05/2025
🦇 Using acoustic activity to redict bat fatalities at wind farm could help to identify at-risk areas for bats, and to implement effective curtailment measures ❗ #bats #conservation #bioacoustics
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Reposted by Andreas Ravache
Bat Research Team @bat-cesco.bsky.social · 06/05/2025
❗[Job Opportunity]❗ 🦇 Sampling and banking of chiropteran acoustic data on the coast and at sea 📍 Concarneau, Brittany, FRANCE 📆 3 months, starting in June 📧 anais.pessato@mnhn.fr
partage.mnhn.fr
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Andreas Ravache @andreasravache.bsky.social · 06/05/2025
‼️[NEW PAPER]‼️ Our team's latest paper explores the breeding biology of a little-known and threatened Procellariid species: the Tahiti Petrel. The marked decline in reproductive success in the presence of predators highlights the species' high sensitivity to disturbance and predation. #seabirds
marineornithology.org
Marine Ornithology
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Reposted by Andreas Ravache
Jack Hooker @jackhooker.bsky.social · 22/04/2025
New OA 🦇 research 📄 Differences in fur cortisol levels of three migratory bats link.springer.com/article/10.1...
link.springer.com
Differences in fur cortisol levels of three migratory bats - Journal of Comparative Physiology B
Understanding how organisms respond to their environments is challenging, especially due to the complex processes related to metabolism, energetics, and reproduction. Glucocorticoids (GCs) are metabol...
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Reposted by Andreas Ravache
Bat Research Team @bat-cesco.bsky.social · 17/04/2025
🦇 During our annual meeting, "Team Chiro" spent three days presenting current challenges in our respective studies and sharing ideas to solve them. 🔎 We then formed working groups around common research questions. 🔽 More information below 🔽
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Andreas Ravache @andreasravache.bsky.social · 09/04/2025
🖥️ I recently presented a webinar on bird and bat mortality estimation at wind farms, in association between @mnhn.fr and @cnrs.fr . 🔗 The presentation is available on YouTube here: www.youtube.com/watch?v=fiOj...
youtube.com
Atelier 1 - Generalized Mortality Estimator et Evidence of Absence - A. Ravache
YouTube video by OUTILS.EOLIEN
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Reposted by Andreas Ravache
Alex Brighten @alexbrighten1.bsky.social · 03/04/2025
Uncovering Alpine swift foraging behaviour using GPS tracking & DNA metabarcoding! For the first time we describe Alpine swift foraging movements and what factors impact foraging trips, short-term range area size, & the prey diversity fed to nestlings #BOU2025 #ornithology 1/7
Presentation title slide showing Alpine swift in the foreground (photo credit: Reto Burri) and the Swiss town of Solothurn in the background with weather imminent.
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Danni Thompson @scottishseabird.bsky.social · 03/04/2025
1/7 Variation between individuals is important as it determines how adaptable to change a population might be. Even generalist spp are often comprised of specialist individuals, but specialisation is often only studied across single traits which is limiting. #BOU2025 #ornithology #seabirds #ecology
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Pauline Bellot @paulinebellot.bsky.social · 03/04/2025
Our latest study is online! 🐣 We show that tebuconazole, a widely used fungicide, significantly reduces growth and survival of house sparrow chicks at concentrations similar to those found in birds from intensive vineyard areas ! 📢 CNRS press release 👉 bit.ly/42u5itZ 📄 Article 👉 bit.ly/4cjZs1F
bit.ly
One of the most widely used fungicides in farming harmful to reproduction in birds
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Common Tern Project @commonternproject.bsky.social · 24/03/2025
Common terns are assortatively mated with respect to their levels of #mercury #pollution, and transfer mercury to their eggs. Another amazing body of work from Justine's PhD thesis has turned into a paper. To be found in Environmental Research and open access: doi.org/10.1016/j.en...
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Dr Alex Bond @thelabandfield.bsky.social · 13/03/2025
Our new @adriftlab.bsky.social paper is out, lead by @alixdejersey.bsky.social showing the insidious impacts of plastics on seemingly health birds (1/5) www.science.org/doi/10.1126/...
science.org
Seabirds in crisis: Plastic ingestion induces proteomic signatures of multiorgan failure and neurodegeneration
Plastic consumption in seabirds causes blood signatures of widespread organ damage including brain, stomach, kidney, and liver.
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Reposted by Andreas Ravache
W. P. Mueller @wpmueller.bsky.social · 13/03/2025
#ornithology #seabirds www.marineornithology.org/article?rn=1...
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Andreas Ravache @andreasravache.bsky.social · 14/03/2025
Plastic pollution causing dementia-like signs in seabird chicks www.nhm.ac.uk/discover/new...
nhm.ac.uk
Plastic pollution causing dementia-like signs in seabird chicks | Natural History Museum
Looking fit is no guarantee of health for one of the world’s most plastic polluted birds.
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Julia Baak, Ph.D. ❄️🦆🧪 @juliaellenbaak.bsky.social · 14/03/2025
#JobAlert 🚨 ❄️🦆🐟🦐 #Research #Scientist focused on #seabirds and #prey interactions, with #SEATRACK, #Norwegian #Polar Institute, and Norwegian Institute for #Nature Research. 3-year term based in #Tromso, #Norway. 🇳🇴 More information here: www.jobbnorge.no/en/available...
jobbnorge.no
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Andreas Ravache @andreasravache.bsky.social · 13/03/2025
[OUT THE PRESS] Seabirds in crisis: Plastic ingestion induces proteomic signatures of multiorgan failure and neurodegeneration In short, plastic ingestion can induce cell damage, organ dysfunction and brain effects on shearwaters
science.org
Seabirds in crisis: Plastic ingestion induces proteomic signatures of multiorgan failure and neurodegeneration
Plastic consumption in seabirds causes blood signatures of widespread organ damage including brain, stomach, kidney, and liver.
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Andreas Ravache @andreasravache.bsky.social · 28/02/2025
❓ How do tropical oceanic central-place foragers from low-lying atolls navigate to return to land before dusk when foraging over vast oceanic territories? 🔎The closer to the evening twilight they start their homing journey, the shorter, faster and more direct their routes become #seabirds
sciencedirect.com
Homing navigation is optimized to diurnal constraints in a tropical seabird, the red-footed booby
When navigating homewards, central-place foragers can use landmarks and sun angle to adjust their return movement behaviour. However, for tropical oce…
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Functional Ecology @funecology.bsky.social · 28/02/2025
📰Published📰 Does being smart help survival? Factors determining the fate of #seabirds under #climatechange @ferransayol.bsky.social @florgeret.bsky.social fesummaries.wordpress.com/2025/02/18/d...
fesummaries.wordpress.com
Does being smart help survival? Factors determining the fate of seabirds under climate change
Junghyuk Keum, Ferran Sayol, Florian Orgeret and Catharine Horswill. This is a plain language summary of a Functional Ecology review article which can be found here. Climate change is a universal t…
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David Ho @davidho.bsky.social · 11/02/2025
We got a message from the university to remove any use of the "DEI", "diversity", "equity", or "inclusion" from all public-facing documents. They said that even "biodiversity" is being flagged by the federal government. We live in the dumbest timeline.
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Andreas Ravache @andreasravache.bsky.social · 10/02/2025
[NEW PAPER] 🐦 Eoldist is a web app that calculates the minimum detection distances required for automatic detection systems (ADS) to reduce bird collisions with wind turbines ☠️ 📉 Using flight speeds of 168 species and measured shutdown times, it will help optimize ADS settings on windfarms.
onlinelibrary.wiley.com
Eoldist, a Web Application for Estimating Cautionary Detection Distance of Birds by Automatic Detection Systems to Reduce Collisions With Wind Turbines
The installation of automatic detection systems (ADSs) on operating wind energy facilities is a mitigation measure to reduce bird collisions. The effectiveness of an ADS depends on a combination of p....
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Andreas Ravache @andreasravache.bsky.social · 29/01/2025
❗Freshly published in Biological Conservation European strom petrels suitable foraging areas are strongly characterized by low sea surface temperature 🥶, high chlorophyll concentration🌿and eddy kinetic energy 🌀
sciencedirect.com
Coping with ocean dynamics: Foraging strategy and implications for conservation of a small petrel
Seabirds' distribution is generally influenced by the ecological dynamics of marine environments. Understanding how oceanographic features shape seabi…
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Marine Ornithology @marineorno.bsky.social · 28/01/2025
#seabirds
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Matt Wood @woodmj.bsky.social · 19/12/2023
We’re hiring a post-doctoral Research Fellow to work on #seabird demography and population dynamics, working with me and @CatHorswill 3 years, closes late Jan 2024. Details here bit.ly/UoGProcBe Register your interest & we’ll contact you when the ad is out #ornithology
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German Ornithological Society @dornitholges.bsky.social · 28/01/2025
New publication 'Selective disappearance based on navigational efficiency in a long-lived seabird' supported by the DOG research funding out in @animalecology.bsky.social. Congratulations to @commonternproject.bsky.social! besjournals.onlinelibrary.wiley.com/doi/10.1111/...
besjournals.onlinelibrary.wiley.com
Selective disappearance based on navigational efficiency in a long‐lived seabird
Changes in migratory performance with age are typically assumed to reflect within-individual learning processes. Here, we show that changes the navigational efficiency in a long-lived seabird instead...
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Scientists for Global Responsibility @responsiblesci.bsky.social · 27/01/2025
The UK Gov's climate credentials have once again come into question after a week in which the chancellor argued at Davos that growth must ‘trump’ net zero and the Climate and Nature Bill was dropped. This dogged pursuit of growth will only lead to bigger problems: www.sgr.org.uk/resources/en... 🧪
sgr.org.uk
The Energy Dilemma: will even greater consumption lead to more problems?
Prof Gareth Wyn Jones, Bangor University, draws on evidence from physics and biology to economics and political science to explore the effects of greater energy consumption on social and environmental...
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