Ibis最新文献

{"title":"Breeding and foraging habitat are important in determining foraging ranges of sympatric generalist species","authors":"Chris B. Thaxter,&nbsp;Lucy R. Quinn,&nbsp;Philip W. Atkinson,&nbsp;Katherine A. Booth Jones,&nbsp;Nigel A. Clark,&nbsp;Gary D. Clewley,&nbsp;Ros M. W. Green,&nbsp;Nina J. O'Hanlon,&nbsp;Daniel T. Johnston,&nbsp;Elizabeth A. Masden,&nbsp;Viola H. Ross-Smith,&nbsp;Elspeth L. Sage,&nbsp;Emily Scragg,&nbsp;Rachel C. Taylor,&nbsp;Niall H. K. Burton,&nbsp;Elizabeth M. Humphreys","doi":"10.1111/ibi.13446","DOIUrl":"https://doi.org/10.1111/ibi.13446","url":null,"abstract":"<p>How far animals travel to gather food for offspring or themselves is a central component of ecology. Among birds, the ‘foraging range’ (straight-line distance between a central place and a destination) is used to assess potential interactions with anthropogenic stressors such as wind farms. Recent reviews have summarized marine foraging ranges for UK breeding seabirds. However, for species that span the terrestrial/marine divide (some gulls, terns, sawbills and divers), terrestrial ranges are unknown, as is an understanding of how ranges may vary by breeding colony and their surrounding habitat. Using global positioning satellite (GPS) telemetry, we studied the movements of Lesser Black-backed Gulls <i>Larus fuscus</i> and Herring Gulls <i>L. argentatus</i> from 11 and seven UK breeding colonies, respectively, over 12 years. We investigated the variation in foraging range using general mixed effects models with respect to: (i) terrestrial and marine environments; (ii) stages of the breeding season; and (iii) colony types according to habitat (natural: island, coastal, inland; and urban: coastal), accounting for sources of potential sampling bias. Lesser Black-backed Gulls had significantly larger ranges than Herring Gulls. During likely active nesting periods (incubation and chick-rearing: ‘true breeding’), marine foraging ranges of Lesser Black-backed Gulls (local mean 19.5 ± 23.1 km, max 175.5 km) were greater than terrestrial ranges (local mean 14.9 ± 15.9 km, max 145.4 km). By contrast, terrestrial ranges were largest for Herring Gulls (terrestrial, 9.1 ± 10.7 km, max 83.8 km; marine, 7.1 ± 8.1 km, max 74.4 km). For terrestrial environments, true breeding foraging ranges of Lesser Black-backed Gulls were smaller than during pre- or post-breeding phases, whereas for Herring Gulls the reverse was true. Marine ranges of both species were smallest during pre-breeding and largest during post-breeding phases. For both species, urban colonies had the smallest foraging range and island colonies some of the largest. Terrestrial and marine foraging ranges were predicted UK-wide based on colony type and breeding phase, highlighting concentrations of foraging range. This study provides more precise foraging range information specific to foraging environment, breeding stage and colony type than has currently been available, and will therefore help to reduce uncertainty in the consenting process for proposed developments as well as in licensing control of wild birds.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"259-292"},"PeriodicalIF":2.1,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13446","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145719692","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":"The potential for climate change to intensify nest-site competition between two sympatric owl species","authors":"Zoltán Schneider,&nbsp;Erika Mátics,&nbsp;Gyula Hoffmann,&nbsp;Miklós Laczi,&nbsp;Gábor Herczeg,&nbsp;Róbert Mátics","doi":"10.1111/ibi.13455","DOIUrl":"https://doi.org/10.1111/ibi.13455","url":null,"abstract":"<p>Interspecific competition profoundly influences the ecology of species, and climate change is expected to alter the strength of interspecific interactions. Using long-term data from sympatric breeding populations of the Western Barn Owl <i>Tyto alba</i> (hereafter Barn Owl) and the Tawny Owl <i>Strix aluco</i> in southern Hungary, we explored the associations between the owl species' (i) breeding phenology (annual median laying dates) and regional weather components (daily precipitation, temperature minimum and maximum), (ii) temporal trends of median laying dates and the associated weather signals, and (iii) reproductive output (laying date, clutch size, fledgling number) and the co-occurence of the two species in the same nestbox during the same breeding season. In the Barn Owl, breeding onset was negatively associated with daily temperature maximum, and advanced by 2 weeks in the study period, while the Tawny Owl breeding onset did not change. We found that when the two species used the same nestbox, the breeding of Barn Owls (occurring after the Tawny Owl breeding) was delayed by a month, and they produced one more egg and owlet on average, but second clutches were practically absent, compared to cases when no interaction occurred in the same nestbox during the same breeding season. In contrast, when nesting in boxes later occuppied by Barn Owls, the Tawny Owl's breeding started a few days earlier with an increased clutch size, although with no difference in the number of fledglings. Our results suggest that climate change could heighten competition for nest-sites between the two owl species, as the Barn Owl's breeding season has shifted closer to the breeding season of the Tawny Owl through the study period in parallel with rising temperatures.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"230-244"},"PeriodicalIF":2.1,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13455","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145719787","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":"Repopulation of the former breeding range: spatio-temporal patterns and drivers of reproduction in the Peregrine Falcon (Falco peregrinus) population in Hungary","authors":"Mátyás Prommer,&nbsp;János Bagyura,&nbsp;Marc Kéry,&nbsp;Madan K. Oli","doi":"10.1111/ibi.13448","DOIUrl":"https://doi.org/10.1111/ibi.13448","url":null,"abstract":"<p>The disappearance of the breeding population of Peregrine Falcon <i>Falco peregrinus</i> from Hungary in 1964 is likely to have been caused by extensive agricultural use of organochlorine pesticides. After proving harmful to humans and wildlife, organochlorine pesticides were banned in North America and many European countries, leading to a recovery in Peregrine populations and other raptors in most parts of the world. In Hungary, Peregrines returned as a breeding species in 1997. Using 26 years (1997–2022) of monitoring data, we investigated spatio-temporal patterns in site occupancy and reproductive success during population recovery. We found that: (i) Peregrines initially re-occupied traditional territories in mountainous and forested regions where suitable nest-sites were available on cliffs and in quarries; (ii) the Peregrine population then slowly expanded to lower elevations, predominantly agricultural areas, where they nested in trees and in artificial nest-sites on pylons; (iii) the overall mean (se) probability of successful nesting was 0.713 ± 0.02 and the average brood size (number of young per successful nesting attempt) was 2.56 ± 0.04, with spatial and temporal variation in both measures of reproductive success; (iv) March precipitation had a negative effect on brood size in the wettest region; (v) higher greenness levels in February negatively affected nesting success in the least forested region; and, finally, (vi) Peregrines breeding in artificial nestboxes on pylons had higher nesting success than pairs breeding in natural nests. Our results suggest that the general recovery pattern of Hungarian Peregrines was similar to those observed in other parts of Europe, but also highlight spatial variation in demographic parameters.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"63-78"},"PeriodicalIF":2.1,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145730484","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":"Effect of a previous high pathogenicity avian influenza (HPAIV) infection on the breeding success of Northern Gannets (Morus bassanus)","authors":"Sue Lewis,&nbsp;Emily Burton,&nbsp;James Butcher,&nbsp;Ian Cleasby,&nbsp;Amy King,&nbsp;Emma Marriott,&nbsp;Dave O'Hara,&nbsp;Maggie Sheddan,&nbsp;Mal Watson,&nbsp;Saskia Wischnewski,&nbsp;Lucy Wright,&nbsp;Sarah Wanless,&nbsp;Jude V. Lane","doi":"10.1111/ibi.13449","DOIUrl":"https://doi.org/10.1111/ibi.13449","url":null,"abstract":"<p>Highly pathogenic avian influenza (HPAIV) caused widespread mortality and breeding failure among many wild, avian populations in Europe and North America in 2021–2023, but most populations exhibited a marked reduction in mortality in the year following an outbreak, suggesting that surviving individuals may have developed immunity. A critical mechanism for population resilience is whether individuals that have survived the disease show reduced breeding success because of the potential costs associated with recovery, notably elevated immune defence. We found that, at two UK colonies, the breeding success of Northern Gannets <i>Morus bassanus</i> with black eyes (an indicator of past exposure to HPAIV) was similar to those with normal blue eyes in the year following a severe disease outbreak, suggesting that population recovery may not be hampered by lower reproductive performance of recovered individuals compared to those that were unexposed. However, breeding success, irrespective of past exposure, was lower than the long-term average, suggesting potential carry-over effects on all individuals from the extensive disruption caused by the epidemic the previous year.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"361-368"},"PeriodicalIF":2.1,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13449","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145719520","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 satellite imagery to map potential colonies of Rüppell's vultures (Gyps rueppelli) in Central and East Africa","authors":"Ivaylo D. Angelov,&nbsp;Dobromir Dobrev,&nbsp;Megan J. Claase,&nbsp;J. Michael Fay,&nbsp;Marc de Bont,&nbsp;Evan R. Buechley","doi":"10.1111/ibi.13454","DOIUrl":"https://doi.org/10.1111/ibi.13454","url":null,"abstract":"<p>We used Google Earth imagery to remotely map 263 potential and confirmed breeding colonies of the Critically Endangered Rüppell's Vulture in seven countries of East and Central Africa. The main aggregations were found in: central and east-central Chad and west and north Darfur in Sudan; south Kordofan state in Sudan; east Sudan and western Eritrea; and southern and southeastern South Sudan. This is the first study to use satellite data to map the breeding distribution of a bird of prey in a large part of its global range. The survey provides guidance for future field research that could seek to verify and monitor the status of these important breeding colonies for a Critically Endangered species.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"369-376"},"PeriodicalIF":2.1,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145719717","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":"Acknowledgement of Reviewers","authors":"","doi":"10.1111/ibi.13453","DOIUrl":"https://doi.org/10.1111/ibi.13453","url":null,"abstract":"<p>The Editors and Associate Editors of IBIS depend heavily on the expertise of independent reviewers. We thank our colleagues for their contributions. Their expertise and constructive criticism ensures the highest standards are maintained. The following served as referees during the period 1 July 2024, to 30 June 2025.</p><p>Goijman, Andrea</p><p>Aarif, KM</p><p>Adamík, Peter</p><p>Aguillon, Stepfanie</p><p>Alexey, Opaev</p><p>Almasi, Bettina</p><p>Angelier, Frederic</p><p>Arct, Aneta</p><p>Arroyo, Iñigo</p><p>Assandri, Giacomo</p><p>Avilés, Jesús</p><p>Baguette, Michel</p><p>Ballentine, Barbara</p><p>Barba, Emilio</p><p>Barve, Sahas</p><p>Basile, Marco</p><p>Batisteli, Augusto</p><p>Bayne, Erin</p><p>Bernat-Ponce, Edgar</p><p>Berr, Tristan</p><p>Beskades, Vedat</p><p>Best, Julia</p><p>Biffi, Sofia</p><p>Birkhead, Tim</p><p>Blomqvist, Donald</p><p>Bocher, Pierrick</p><p>Bodey, Thomas</p><p>Border, Jennifer</p><p>Borger, Mirjam</p><p>Bouchri, Haytem</p><p>Bradfer-Lawrence, Tom</p><p>Brumm, Henrik</p><p>Budka, Michal</p><p>Bulla, Martin</p><p>Burger, Claudia</p><p>Burgess, Malcolm</p><p>Burton, Niall</p><p>Buxton, Rachel</p><p>Camphuysen, C.</p><p>Capilla-Lasheras, Pablo</p><p>Carlson, Nora</p><p>Carneiro, Camilo</p><p>Cevenini, Devon</p><p>Champagnon, Jocelyn</p><p>Chibesa, Moses</p><p>Childers, Jackie</p><p>Clarke, Jennifer</p><p>Cohen, Jonathan</p><p>Collar, Nigel</p><p>Colombo, Martín Alejandro</p><p>Coppinger, Brittany</p><p>Crates, Ross</p><p>Cuervo, Andrés M.</p><p>De la Hera, I</p><p>Dehnhard, Nina</p><p>Diamond, Tony</p><p>Dingle, Caroline</p><p>Dobney , Sarah</p><p>Dunning, Jamie</p><p>Duriez, olivier</p><p>Edney, Alice</p><p>Eens, Marcel</p><p>Efrat, Ron</p><p>Einarsson, Árni</p><p>Evans, Karl</p><p>Falk, Knud</p><p>Fandos, Guillermo</p><p>Fargevieille, Amélie</p><p>Farras, Kevin</p><p>Fasola, Mauro</p><p>Fattorini, Niccolo</p><p>Favaro, Livio</p><p>Ferreira, André C.</p><p>Fijn, Ruben C.</p><p>Flack, Andrea</p><p>Fleishman, Abram</p><p>Flesch, Elizabeth</p><p>Foote, Jenn</p><p>Francisco, Mercival</p><p>Furness, Robert</p><p>Gagliardo, Anna</p><p>Gameiro , João</p><p>García-Campa, Jorge</p><p>Geen, Graham</p><p>Gill, Robert</p><p>Gillies, Natasha</p><p>Gilliland, Scott</p><p>Grabarczyk, Erin</p><p>Green, Andy</p><p>Griffith, Simon</p><p>Guillemain, Matthieu</p><p>Gunawardena, Medhisha</p><p>Hammer, Sjúrður</p><p>Hampton, Stephen</p><p>Hartley, Ian</p><p>Healy, Susan</p><p>Heintz, Anne-Caroline</p><p>Hewson, Chris</p><p>Hinke, Jefferson</p><p>Hird, Sarah</p><p>Hofmeister, Natalie R.</p><p>Horrocks, Nicholas</p><p>Hughes, Robert</p><p>Hung, Chih-Ming</p><p>Hunt, David</p><p>Huryne, Eugene</p><p>Inigo-Elias, Eduardo</p><p>Jähnig, Susanne</p><p>Jankowski, Jill</p><p>Jaramillo, Alvaro</p><p>Jedlikowski, Jan</p><p>Jiang, Aiwu</p><p>Jiménez, Rosa Alicia</p><p>Joel, Yitmwa</p><p>Johnson, Jeff</p><p>Joseph, Leo</p><p>Karell, Patrick</p><p>Kaur, Jasmeen</p><p>Kempenaers, Bart</p><p>Kent, Cody</p><p>King, David</p><p>Klinck, Holger</p><p>Knight, E","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"167 4","pages":"1125-1126"},"PeriodicalIF":2.1,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13453","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102118","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":"A Neolithic rock engraving apparently showing a Great Auk being captured","authors":"Tim R. Birkhead,&nbsp;Robert Montgomerie","doi":"10.1111/ibi.13452","DOIUrl":"https://doi.org/10.1111/ibi.13452","url":null,"abstract":"<p>We evaluate whether a Neolithic engraved rock image at the Alta archaeological site in Finnmark, Norway – of a bird being held by a person – represents a Great Auk <i>Pinguinus impennis.</i> There are several thousand engraved animal figures at Alta, created between 5000 and 2000 years ago, in various hunting panoramas. Of these images, 24 represent aquatic birds, including four others that might also be Great Auks. Based on the size of the bird relative to the person holding it, the size and shape of the beak, wings and webbed feet, and comparisons with some other bird images at Alta, we conclude that it is likely that this one does represent a Great Auk.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"377-382"},"PeriodicalIF":2.1,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13452","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145719581","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":"Source amplitude increases with body-mass across avian genera","authors":"Morgan A. Ziegenhorn,&nbsp;Richard B. Lanctot,&nbsp;Stephen C. Brown,&nbsp;Sarah T. Saalfeld,&nbsp;Paul A. Smith,&nbsp;Nicolas Lecomte","doi":"10.1111/ibi.13447","DOIUrl":"https://doi.org/10.1111/ibi.13447","url":null,"abstract":"<p>Amplitude, or intensity, of sound is a fundamental characteristic of acoustic communication, with relevance in many scientific fields. The amplitude of an animal's acoustic signal at its source (‘source amplitude’) may be particularly relevant in the field of acoustic allometry, where relationships between species' physical and acoustic features (e.g. dominant frequency) have been well-established across taxa. However, despite their potential scientific value, records and studies of source amplitude remain remarkably scarce for avian species. Here we present novel estimates of source amplitude (range and median) for 17 species of Arctic-breeding birds, derived from measurements made in Utqiaġvik, Alaska, during June 2024. We found a strong positive correlation between body-mass and source amplitude in these data via Markov chain Monte Carlo multivariate generalized linear mixed models (MCMCglmms). This relationship was influenced by both phylogenetic and individual identity. In contrast, effects from environmental factors and measurement characteristics were minimal. Our work represents one of few studies that explicitly model an interspecific relationship between source amplitude and body mass across avian genera. We hope that this study will spur further investigations into avian source amplitude and its relationship to morphological and life-history features for species in the Arctic and elsewhere.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"127-139"},"PeriodicalIF":2.1,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13447","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145730388","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":"Wetland location and captive breeding influence trans-Mediterranean movements in the endangered Marbled Duck (Marmaronetta angustirostris)","authors":"Irene Pacheco-Guardiola,&nbsp;Juan Manuel Pérez-García,&nbsp;Óscar Aldeguer,&nbsp;Marcos Ferrández,&nbsp;Claudine de le Court,&nbsp;Juan Antonio Gómez,&nbsp;Francisco Botella","doi":"10.1111/ibi.13442","DOIUrl":"https://doi.org/10.1111/ibi.13442","url":null,"abstract":"<p>Waterbirds distributed in semi-arid and arid regions seem to have adapted their behaviour to the availability and seasonality of wetlands, increasing their mobility range. The Marbled Duck <i>Marmaronetta angustirostris</i> is a threatened waterbird that shows trans-Mediterranean movements but these are poorly known. In a conservation effort, there are two captive-breeding programmes in Spain. Each year captive-bred individuals are released in two main sites: Doñana and surroundings (southwest Spain) and the southern wetlands of Alicante (southeast Spain). In 2018, a GPS/GSM tagging project was launched to monitor the species to facilitate an understanding of their movement patterns and to assess the effects of captive breeding on the adaptation of individuals to the wild. This study presents the first description of long-distance movements between North Africa and Europe by Marbled Ducks. Of the 144 GPS-tagged individuals, only 18 crossed into Africa, the majority were wild-born (<i>n</i> = 14) and only four were from the captive breeding programme, indicating a strong effect of origin on the likelihood of undertaking long-distance movements. Our results showed that long-distance movements were not restricted to the wintering season but also occurred during the breeding season, showing a clear temporal pattern between the two main release/tagging sites: individuals from the southwest crossed mainly in April, whereas those from the southeast did so mainly in October. Birds showed heterogeneous movements at the individual scale (cumulative daily distance moved ranged from 0.1 to 447 km/day). Marbled Ducks performed significantly longer daily displacements during their time in North Africa than those observed in Spain. These findings reveal the complexity and flexibility of movement strategies in this nomadic species and suggest that long-distance movements are individual responses to environmental conditions and wetland availability. Furthermore, we discuss possible explanations for the observed differences in long-distance movements between wild-born and captive-bred individuals. These insights into the seasonal patterns and origin-related differences in long-distance movements are crucial for informing more effective conservation strategies for this endangered species.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"245-258"},"PeriodicalIF":2.1,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13442","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145719387","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":"Reducing bias in shorebird nest survival rates across a large Arctic landscape","authors":"Sarah T. Saalfeld,&nbsp;Emily L. Weiser,&nbsp;Stephen C. Brown,&nbsp;Christopher J. Latty,&nbsp;Shiloh Schulte,&nbsp;Richard B. Lanctot","doi":"10.1111/ibi.13441","DOIUrl":"https://doi.org/10.1111/ibi.13441","url":null,"abstract":"<p>Reproductive success is a key demographic parameter that can have profound impacts on a species' population trend. Indeed, poor reproductive success has been suggested as a contributing factor to the declines observed in many species of birds, including Arctic-breeding shorebirds. However, the available information on Arctic-breeding shorebird nest survival is restricted to a limited number of non-random locations where proximity to human settlements and traditional invasive monitoring techniques may artificially alter nest predation rates and, thus, bias results. To accurately assess reproductive success, unbiased estimates are needed. In this study, we monitored 96 shorebird nests (six species) at 41 randomly selected sites across a large Arctic landscape (1219 km² area of the Arctic National Wildlife Refuge) using minimally invasive techniques (i.e. single nest visits, temperature loggers and cameras) in 2019 and 2022. Overall, daily survival was 0.975 (95% CI: 0.955–0.987), which translates to a 53% (95% CI: 32–72%) probability of a shorebird nest surviving the median (25 days) incubation period for the studied species. Camera footage indicated Arctic Foxes <i>Vulpes lagopus</i> were the primary nest predator (85% of identified predation events), but Parasitic Jaegers <i>Stercorarius parasiticus</i> and Sandhill Cranes <i>Grus canadensis</i> also contributed to nest loss. In both years, greater nest failure occurred in the northwest and northcentral regions of our study area, potentially the result of greater shorebird abundance and density-dependent predation rates. Nest survival rates obtained in this study were the same as those obtained in a previous large geographical study that monitored shorebird nests across numerous small, non-randomly selected, high-density shorebird field sites that employed intensive human monitoring techniques. However, site-specific and annual differences in predator and shorebird species and densities make direct comparisons to previous studies difficult. Continued monitoring using methods that minimize bias and are consistent across time are needed to accurately measure true changes in nest survival rates that may occur under a changing climate and with increased human development.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"25-41"},"PeriodicalIF":2.1,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13441","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145730490","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}