Bárbara Freitas
@brbbfreitas
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PhD Student at @mncn_csic and @EDB_Lab studying song's role in #speciation of #IslandBirds
Toulouse, France
Joined October 2019
📌Just published: "Meta-analysis of the acoustic adaptation hypothesis reveals no support for the effect of vegetation structure on acoustic signalling across terrestrial vertebrates". More details 👇.
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The awesome symposium on 'Evolution in small populations' at @eseb2025 is here. Don't miss the deadline!.
📢 We are very pleased to announce the upcoming symposium on evolution in small populations at @eseb2025 (17-22/08), with Eva Ringler and @HernMoral as invited speakers, and co-organized with @brbbfreitas and José Cerca. Please join us and submit your abstracts before the 25/04!
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RT @idiv: 🌿Calling on MSc students and doctoral researchers to apply for iDiv’s Summer School & explore the latest advances in machine lear….
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RT @TULIP_GS_LabEx: TULIP International Summer School 2025."Biological interactions from genes to ecosystems". 🗓️ From June 21 to 27.🏔️at G….
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RT @animal_prattle: Meta-analysis finds no support for the Acoustic Adaptation Hypothesis 😲😳. Now published, by @brbbfreitas w/ @ornitho_pi….
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RT @ornitho_pie: Hello science Twitter!.It's time to re-evaluate a long standing hypothesis in bioacoustics!!🤯🤯🤯.No current support for the….
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🔊We call for:. - the need for ++ research on the influence of vegetation on acoustic signals in understudied taxa 🐸🐘🐊🦌. 🙌Thanks to @ornitho_pie @borjamila @cjytheb @TimJanicke. @mncn_csic @EDB_Lab @MPIforBI @cefemontpellier.
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🔊We propose a framework for future research:. - identify frequencies with the highest detection probability. - determine if frequencies with greater detection distances are preferentially used. -AAH should focus on signals that are selected for increased transmission distance.
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1⃣ no overall support for the AAH. 2⃣ weak support in within-species comparisons among birds (mainly frequency bandwidth studies). 3⃣ support in among-species comparisons in birds, but not significant after excluding studies that did not account for phylogenetic non-independence.
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We retrieved 371 effect sizes from 75 studies and 57 taxa encompassing birds 🦜🦉(much more data for this group than others), mammals 🫎🐘 and amphibians 🐸 and.-ran within- and among-species comparisons.-accounted for phylogenetic non-independence. Here are the main findings:.
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Based on the Acoustic Adaptation Hypothesis (AAH), animals in densely vegetated “closed habitats” are expected to produce longer acoustic signals with lower repetition rates and lower frequencies compared to those inhabiting less-vegetated “open habitats”.-Is this general ??.
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RT @_malavika_m: I'm excited to share our new review (and also my first, first-author paper🤯) on Vocal individuality in owls, from the pers….
link.springer.com
Journal of Ornithology - The ability to recognize and be recognized underlies the social behavior of many animals. Individual-level recognition holds special importance in intra-specific...
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RT @wheatcroftlab: ‼️Job alert ‼️. We have an open position for a bioinformatician to work on songbird genomics until October next year: ht….
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RT @imprs_qbee: 📢 JOB ALERT ‼️. Interested in animal behaviour and ecology?🔎🦗🐛🐒🐝. 👉Then check out our webpage 👀for….
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RT @BirdLife_SA: 🚨Today the African Penguin has been uplisted to Critically Endangered by the IUCN, just one short step away from extinctio….
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RT @ornitho_pie: Do you want to share your #AudioMoth devices?.My student (USA based) would need some for their research project!🐦🦉🐦⬛.(We'….
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RT @bioacousist: 📢Publication Alert for all Bioacoustics Enthusiasts!.We sat down together to bridge the gap & empower researchers with pra….
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RT @IslandBirdProj: Are you looking for a master's thesis project? Are you interested in island biology? Our research focuses on the evolut….
islandbirdproject.com
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