Ibis最新文献

{"title":"British Ornithologists’ Union: Janet Kear Union Medal","authors":"Steve P. Dudley, David Stroud","doi":"10.1111/ibi.13324","DOIUrl":"10.1111/ibi.13324","url":null,"abstract":"<p>Societies are all about people. People join them to meet other people with shared interests. Some people go on to help run the society, to help deliver the activities and services that members want. And some people embed themselves within a society, quite often going unnoticed, becoming part of the fabric that gives a society their place, their identity. The Janet Kear Union Medal celebrates such people.</p><p>If you look back through BOU annual reports from the mid-2000s onwards, one of the most frequently mentioned and thanked members is Dr Helen Baker. Already an engaged member and conference attendee, Helen began her 14-year stay on BOU committees and Council when she joined the Meetings Committee in 2008. This was an ideal starting point for Helen to operate from ‘within’ the BOU, having already contributed to various conference scientific committees and working groups, by putting her first-hand event experience to great use and delivering an important science and conservation policy angle to many conferences.</p><p>In 2013 Helen was elected as an Ordinary member of Council as the pre-cursor to being elected Honorary Secretary in 2014, a position she served for two terms until 2022. As ‘Hon Sec’ Helen joined the BOU's Management Group and took a hands-on role in managing and supporting the Union's two permanent staff. She helped to further develop and undertake the annual staff reviews, ensuring that staff were fully supported in their roles in delivering across all BOU activities, a contribution which also enabled her to have critical oversight of all that the Union delivered. During this time, she built a strong relationship with Chief Operations Officer, Steve Dudley, and with both being Peterborough-based, Helen was able to provide Steve with much-needed face-to-face mentoring and support in his key role of running the BOU as a remote worker.</p><p>On arriving on Council in 2013, Helen championed the BOU's recent take-up of social media, particularly Twitter, to not just promote and drive BOU activities, but to be a unifying voice for ornithology and the drive to build an actively engaged online community. More than many at the time, Helen recognized that for a small society with a global membership, social media overcame a previous inability to engage with both members and the wider ornithological community much more regularly and effectively. Such a strong voice of support was not just critical around the Council table but more importantly it helped to drive the BOU's aim of establishing the Union as a truly global society both on- and off-line.</p><p>Helen was also a staunch supporter of the BOU widening its equality and diversity commitments, taking the Union's work beyond gender issues by making the BOU a welcoming society for all those working in ornithology, including giving LBGTQ+ ornithologists a louder presence and voice via the BOU Rainbow Blog, the establishment of the BOU's Equality and Diversity Working Group and the dev","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"166 3","pages":"1114-1115"},"PeriodicalIF":1.8,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13324","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140602956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Connection between ecological niche changes and population trends in the Eurasian Skylark (Alauda arvensis) breeding in lowland and mountain areas of Southern Europe","authors":"Pietro Tirozzi,&nbsp;Valerio Orioli,&nbsp;Olivia Dondina,&nbsp;Luciano Bani","doi":"10.1111/ibi.13322","DOIUrl":"10.1111/ibi.13322","url":null,"abstract":"<p>Population responses to environmental changes can often vary geographically and between environments, potentially as a consequence of differing niche dynamics. The Eurasian Skylark <i>Alauda arvensis</i> is an open-habitat passerine bird that is declining throughout Europe, mainly due to agricultural intensification. We compared population trends (1992–2021) of the species across three sub-regions of northern Italy characterized by different environmental conditions and human pressures: the Alpine sub-region (less anthropized mountains), the Plain (strongly anthropized and intensively cultivated) and the Oltrepò (less intensively cultivated hills), with changes in the realized Grinnellian niches over three decades. In each sub-region, niche comparisons did not show divergence over the study. However, we found an overall reduction in niche occupancy over time. In the Alpine sub-region, a reduction in niche occupancy in hayfields and pastures was not associated with population decline; indeed, we found an increasing population (+164%), probably because high availability of natural grasslands counteracted niche contraction. Conversely, in the Plain and Oltrepò sub-regions, the observed population declines (−99% and −36%, respectively) are associated with a general reduction of niche occupancy in arable lands that represented the core of the niche in these ranges. In the Plain, the lack of alternative suitable habitats might have limited any opportunity for the species to colonize new environments. Conversely, in the Oltrepò, the less severe population decline is combined with increased niche occupancy in hayfields and pastures at higher elevations. The joint application of population trend analysis and niche modelling as well as the decomposition of population changes across different environmental contexts can contribute to a better understanding of ecological processes affecting population dynamics, supporting policy-makers to implement targeted conservation strategies.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"166 4","pages":"1311-1328"},"PeriodicalIF":1.8,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140200798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New fossils of Eocypselus and Primapus from the British London Clay reveal a high taxonomic and ecological diversity of early Eocene swift-like apodiform birds","authors":"Gerald Mayr,&nbsp;Andrew C. Kitchener","doi":"10.1111/ibi.13323","DOIUrl":"10.1111/ibi.13323","url":null,"abstract":"<p>We describe new specimens and species of apodiform birds from the early Eocene London Clay of Walton-on-the Naze (Essex, UK). In addition to multiple partial skeletons of <i>Eocypselus vincenti</i> Harrison, 1984, three new species of <i>Eocypselus</i> are described as <i>Eocypselus geminus</i>, sp. nov., <i>Eocypselus paulomajor</i>, sp. nov. and <i>Eocypselus grandissimus</i>, sp. nov. The previously unknown quadrate of <i>Eocypselus</i> shares a characteristic derived morphology with the quadrate of the Aegothelidae, Hemiprocnidae and Apodidae, whereas the quadrate of the Trochilidae is very different. We also report a striking disparity of the shapes of the axis vertebra of apodiform birds, which is likely to be of functional significance. <i>Eocypselus</i> and extant Hemiprocnidae and Cypseloidini (Apodidae) exhibit the plesiomorphic morphology, whereas a derived shape characterizes extant Aegothelidae, Apodini and Trochilidae. Furthermore, we describe the first partial skeleton of the earliest aegialornithid species, <i>Primapus lacki</i> Harrison &amp; Walker, 1975, which was previously only known from the humeri of the type series that stem from different sites of the London Clay. The apodiform birds from Walton-on-the-Naze show a considerable taxonomic and ecomorphological diversity, and whereas <i>Eocypselus</i> may have inhabited forest edges and caught insects by sallying flights from perches, <i>Primapus</i> probably was a fast-flying and more aerial bird.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"166 4","pages":"1199-1217"},"PeriodicalIF":1.8,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13323","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140200817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of big birding events in tropical Asia – a case study from Kerala","authors":"E. R. Sreekumar,&nbsp;M. S. Syamili,&nbsp;J. Praveen","doi":"10.1111/ibi.13321","DOIUrl":"10.1111/ibi.13321","url":null,"abstract":"<p>Big birding events provide a valuable opportunity to develop datasets to supplement systematic bird monitoring. However, the contributions of these big datasets remain unclear. In this study, we examine two big birding events in Kerala, India (Great Backyard Bird Count and Onam Bird Count). Data submitted during these events between 2014 and 2022 were analysed to assess data quantity, species representation, spatial coverage and birder recruitment. The events contributed a disproportionately large amount of data (12% of all Kerala bird data) and effectively recruited volunteers (&gt; 50% recruited in 2 months) into the citizen science programme. Although the data exhibited a spatial bias (missing 18% of Kerala), the reporting frequencies of common birds from these events were in agreement with the semi-structured birding efforts conducted throughout the rest of the year. The simplicity of their protocols and reasonably high data quality make big birding events a useful component of citizen science. Promoting such events is useful for engaging citizens in bird monitoring and conservation, especially in densely populated and biodiverse countries such as India.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"167 1","pages":"97-105"},"PeriodicalIF":1.8,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140182182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An a priori assessment of the impact of harvesting from five wild populations for conservation translocations","authors":"William F. Mitchell,&nbsp;Alexandra H. Nance,&nbsp;Rohan H. Clarke","doi":"10.1111/ibi.13319","DOIUrl":"10.1111/ibi.13319","url":null,"abstract":"<p>Given the frequency with which translocation is implemented as a conservation tool, remarkably little research has assessed the sustainable management of translocation source populations. We sought to make an <i>a priori</i> estimate of the impact of multiple alternative harvesting scenarios on five passerine species endemic to Norfolk Island which may benefit from future translocation. Population parameters for our five focal taxa were quantified using distance sampling at 298 point surveys conducted in 2019. Intensive nest monitoring between 2018 and 2020 was used to estimate reproductive rates. We modelled population trajectories for all five taxa under alternative harvesting scenarios in forward projections over a 25-year period to assess the likelihood that focal populations could recover from a harvesting event. We used sensitivity analysis to assess the robustness of models to uncertainty around some population parameters. We estimate that Norfolk Island National Park supported 1486 Norfolk Robins <i>Petroica multicolor</i> (95% confidence interval (CI) 1017–1954), 7184 Slender-billed White-eyes <i>Zosterops tenuirostris</i> (95% CI 5817–8551), 2970 Norfolk Grey Fantails <i>Rhipidura albiscapa pelzini</i> (95% CI 2094–3846), 3676 Norfolk Gerygones <i>Gerygone modesta</i> (95% CI 2869–4482) and 1671 Norfolk Golden Whistlers <i>Pachycephala pectoralis xanthoprocta</i> (95% CI 1084–2259) in 2019. All five species were predicted to recover from the harvest of 50, 100 or 150 individuals within 10 years. Despite considerable variation in population parameters, we demonstrate that all five focal taxa have the potential to sustain harvesting at rates required for future conservation translocations. We provide a clear comparison of differing intensity harvesting strategies for on-ground managers. More broadly, we provide a rare example of an <i>a priori</i> assessment of the impact of harvesting for translocation.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"166 4","pages":"1280-1295"},"PeriodicalIF":1.8,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13319","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140170548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Building bridges in the conversation on eponymous common names of North American birds","authors":"Irene A. Liu,&nbsp;Eric R. Gulson-Castillo,&nbsp;Joanna X. Wu,&nbsp;Amelia-Juliette C. Demery,&nbsp;Nandadevi Cortes-Rodriguez,&nbsp;Kristen M. Covino,&nbsp;Susannah B. Lerman,&nbsp;Sharon A. Gill,&nbsp;Viviana Ruiz Gutierrez","doi":"10.1111/ibi.13320","DOIUrl":"10.1111/ibi.13320","url":null,"abstract":"<p>Like many other fields, ornithology and birding are addressing their legacy of colonialism, including re-examining their naming practices. Discussions about eponyms, when species are named to honour people, sit at the intersection of nomenclatural stability and social justice concerns. In response to a charged debate about the future of eponymous common names, members of the American Ornithological Society (AOS)'s Diversity and Inclusion Committee held one-on-one listening sessions in 2020 with stakeholder groups across the birding and ornithology community and, in 2021, organized a Community Congress where stakeholders shared thoughts with a public audience. These two events aimed to create spaces for thoughtful dialogue around an inflamed topic and to identify areas of consensus for moving forward. Here we summarize the main findings from these two activities. We found broad agreement among stakeholders that (1) social justice is a valid reason to change names, (2) many issues – especially the technical, decision-making and public-engagement aspects of name changes – need to be considered, and (3) educational opportunities are not only abundant but critical in any name-change process to achieve the stated goals of increasing diversity and belonging in birding and ornithology. Our work highlights the importance of including many voices in conversations when proposed changes to public use systems, such as common names, appear to conflict with current decision-making methods. By creating a space away from knee-jerk reactions, our listening sessions and the Community Congress found that the scientists, birders, educators, data/wildlife managers and field guide authors we spoke with are willing to engage in crucial conversations of how to deal with eponymous common names, as part of engaging with ornithology's colonialist history.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"166 3","pages":"1092-1102"},"PeriodicalIF":1.8,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13320","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140125490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Haemosporidian infections are more common in breeding shorebirds than in migrating shorebirds","authors":"William Jones,&nbsp;Zsófia Tóth,&nbsp;Viacheslav Khursanov,&nbsp;Nastassia Kisliakova,&nbsp;Oliver Krüger,&nbsp;Tamás Székely,&nbsp;Natalia Karlionova,&nbsp;Pavel Pinchuk,&nbsp;Nayden Chakarov","doi":"10.1111/ibi.13318","DOIUrl":"10.1111/ibi.13318","url":null,"abstract":"<p>Migrating animals are thought to be important spillover sources for novel pathogens. Haemosporidians (malaria-related parasites) are one such group of pathogens that commonly spillover into novel host communities if competent vectors are present. In birds, shorebirds (sandpipers, plovers and allies) perform some of the longest avian migrations, yet they are traditionally perceived as relatively free from haemosporidians. Although low prevalence fits several theories, such as effective immune responses or low exposure to vectors, few studies have been carried out in freshwater inland sites, where the vectors of haemosporidians (e.g. mosquitoes) are abundant, with a mixture of actively migrating (staging) and breeding hosts. Here we report the prevalence of three haemosporidian parasites, <i>Haemoproteus</i>, <i>Leucocytozoon</i> and <i>Plasmodium</i>, screened in 214 shorebirds from 15 species sampled in a freshwater marshland, southern Belarus. Contrary to most previous studies, we found that haemosporidians were frequent, with an overall prevalence in the community of 16.36%, including the locally breeding shorebirds (23.13%, 134 individuals of 10 species). However, actively migrating shorebirds had much lower prevalence (0.05%, 55 individuals of five species). We suggest that blood parasite infections are more common in shorebirds than currently acknowledged. Yet, actively migrating species may be free from haemosporidians or carry suppressed infections, leading to lower prevalence or even apparent absence in some species. Taken together, we theorize that a combination of sampling biases has driven our understanding of haemosporidian prevalence in shorebirds and future studies should take the migratory status of individuals into account when reporting prevalence. Furthermore, we argue that birds undergoing active migration may be less likely sources of spillover events than previously assumed.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"166 4","pages":"1354-1367"},"PeriodicalIF":1.8,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13318","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140044151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using citizen science image analysis to measure seabird phenology","authors":"Alice J. Edney,&nbsp;Jóhannis Danielsen,&nbsp;Sébastien Descamps,&nbsp;Jón Einar Jónsson,&nbsp;Ellie Owen,&nbsp;Flemming Merkel,&nbsp;Róbert A. Stefánsson,&nbsp;Matt J. Wood,&nbsp;Mark J. Jessopp,&nbsp;Tom Hart","doi":"10.1111/ibi.13317","DOIUrl":"10.1111/ibi.13317","url":null,"abstract":"<p>Developing standardized methodology to allow efficient and cost-effective ecological data collection, particularly at scale, is of critical importance for understanding species' declines. Remote camera networks can enable monitoring across large spatiotemporal scales and at relatively low researcher cost, but manually analysing images and extracting biologically meaningful data is time-consuming. Citizen science image analysis could reduce researcher workload and increase output from large datasets, while actively raising awareness of ecological and conservation issues. Nevertheless, testing the validity of citizen science data collection and the retention of volunteers is essential before integrating these approaches into long-term monitoring programmes. In this study, we used data from a <i>Zooniverse</i> citizen science project, <i>Seabird Watch</i>, to investigate changes in breeding timing of a globally declining seabird species, the Black-legged Kittiwake <i>Rissa tridactyla.</i> Time-lapse cameras collected &gt;200 000 images between 2014 and 2023 across 11 locations covering the species' North Atlantic range (51.7°N–78.9°N), with over 35 000 citizen science volunteers ‘tagging’ adult and juvenile Kittiwakes in images. Most volunteers (81%) classified images for only a single day, and each volunteer classified a median of five images, suggesting that high volunteer recruitment rates are important for the project's continued success. We developed a standardized method to extract colony arrival and departure dates from citizen science annotations, which did not significantly differ from manual analysis by a researcher. We found that Kittiwake colony arrival was 2.6 days later and departure was 1.2 days later per 1° increase in latitude, which was consistent with expectations. Year-round monitoring also showed that Kittiwakes visited one of the lowest latitude colonies, Skellig Michael (51.8°N), during winter, whereas birds from a colony at similar latitude, Skomer Island (51.7°N), did not. Our integrated time-lapse camera and citizen science system offers a cost-effective means of measuring changes in colony attendance and subsequent breeding timing in response to environmental change in cliff-nesting seabirds. This study is of wide relevance to a broad range of species that could be monitored using time-lapse photography, increasing the geographical reach and international scope of ecological monitoring against a background of rapidly changing ecosystems and challenging funding landscapes.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"167 1","pages":"56-72"},"PeriodicalIF":1.8,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13317","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140044462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"British Ornithologists’ Union – Godman Salvin Prize","authors":"","doi":"10.1111/ibi.13312","DOIUrl":"10.1111/ibi.13312","url":null,"abstract":"&lt;p&gt;As a child growing up deep in the Midwest of the United States, it was perhaps unlikely that young, tow-headed P. Dee Boersma dreamed of a lifetime spent in remote field locations in the southern hemisphere focusing her intensely inquisitive mind on black and white flightless avifauna. But, it's penguins (with some other species thrown in here and there for good measure) that have been what the still tow-headed Dr P. Dee Boersma has devoted her life to. And in their own way, the thousands – perhaps millions – of penguins that Dee has observed and collected data from over the last 50+ years, and indeed, all species of penguins on our globe, send a raucous thank you to her years of devotion to their cause. Dee's commitment to penguins has influenced policy of governments at multiple levels, contributed to the development and success of a suite of students under her tutelage, inspired countless field volunteers and other lay people to fight for all wild animals and places, and has left an indelible mark of how natural history field research is fundamental to the conservation of all species.&lt;/p&gt;&lt;p&gt;Having obtained a Bachelors of Science with Honours from Central Michigan University in 1969, Dee embarked on what can only be described as an incredible field adventure culminating in a PhD in Zoology from The Ohio State University. Her dissertation, entitled ‘The Galapagos Penguin: A Study of Adaptations for Life in an Unpredictable Environment’, was the result of multiple visits to those remote Galapagos Islands from 1970 to 1972, which at first found her camping alone at Pta. Espinosa, Fernandina, for weeks at a time, focusing her energy in beginning to understand why these amazing penguins so near to the equator continued to persist. Such a solo adventure would probably not be possible for a young scientist today, and indeed, her advisor insisted she take a field assistant on future visits. But, solo or otherwise, even at the start of her career, Dee Boersma was extraordinary, driven and intensely focused on her goals. Fifty+ years later, those traits persist.&lt;/p&gt;&lt;p&gt;With PhD in hand, in 1974 Dee migrated westward to the Pacific coast of the US and joined the Department of Zoology at the University of Washington, spending time in numerous departments and programmes across campus, and working her way to Professor of Zoology in 1988 (to be transferred to Professor of Biology in 1993). After a 10-year foray in the wilds of Alaska, with fork-tailed storm petrels the focus of her always intense passion for life in the field, Dee was asked to return to her roots and the penguins of the south, but this time in Argentina. With pressure from the world of international fashion's desire to use the leather of Magellanic penguins for golfing gloves, Dee was asked to initiate studies on the close cousins of her beloved Galapagos penguins, to provide scientific data to influence the Argentine government to not collect penguins for gloves. With her data contributing","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"166 2","pages":"754-755"},"PeriodicalIF":2.1,"publicationDate":"2024-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139980443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mountain is calling – decrypting the vocal phenology of an alpine bird species using passive acoustic monitoring","authors":"Amandine Serrurier,&nbsp;Przemyslaw Zdroik,&nbsp;Res Isler,&nbsp;Tatiana Kornienko,&nbsp;Elisenda Peris-Morente,&nbsp;Thomas Sattler,&nbsp;Jean-Nicolas Pradervand","doi":"10.1111/ibi.13314","DOIUrl":"10.1111/ibi.13314","url":null,"abstract":"<p>Monitoring vulnerable species inhabiting mountain environments is crucial to track population trends and prioritize conservation efforts. However, the challenging nature of these remote areas poses difficulties in implementing effective and consistent monitoring programmes. To address these challenges, we examined the potential of passive acoustic monitoring of a cryptic high mountain bird species, the Rock Ptarmigan <i>Lagopus muta</i>. For 5 months in each of two consecutive years, we deployed 38 autonomous recording units in 10 areas of the Swiss Alps where the species is monitored by a national count monitoring programme. Once the recordings were collected, we built a machine-learning algorithm to automate call recognition. We focused on studying the species' daily and seasonal calling phenology and relating these to meteorological and climatic data. Rock Ptarmigans were vocally active from March to July, with a peak of activity occurring between mid-March and late April, 1 or 2 months earlier than the second half of May when the counts of the monitoring programme take place. The calling rate peaked at dawn before dropping rapidly until sunrise. Daily vocal activity demonstrated a consistent association with weather conditions and moon phase, whereas the timing of seasonal vocal activity varied with temperature and snow conditions. We found that the peak of vocal activity occurred when the snowpack was still thick and snow cover was close to 100% but with a local peak of high temperatures. Between our two study years, the peak of vocal activity occurred 30 days later in the colder year, suggesting phenological plasticity in relation to environmental conditions. Passive acoustic monitoring has the potential to complement conventional acoustic counts of cryptic birds by highlighting periods of higher detectability of individuals, and to survey small populations that often remain undetected during single visits. Moreover, our study supports the idea that passive acoustic monitoring can provide valuable data over large spatial and temporal scales, allowing decryption of hidden ecological patterns and assisting in conservation efforts.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"166 4","pages":"1338-1353"},"PeriodicalIF":1.8,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13314","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139953929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}