Ibis最新文献

{"title":"Nest-site selection and reproductive success of a critically endangered parrot, the Great Green Macaw (Ara ambiguus), in an anthropogenic landscape","authors":"Thomas C. Lewis,&nbsp;Ignacio Gutiérrez Vargas,&nbsp;Claire Vredenbregt,&nbsp;Mario Jimenez,&nbsp;Ben Hatchwell,&nbsp;Andrew P. Beckerman,&nbsp;Dylan Z. Childs","doi":"10.1111/ibi.13262","DOIUrl":"10.1111/ibi.13262","url":null,"abstract":"<p>Nest-site selection is the principal way in which secondary cavity-nesting species mitigate the negative effects of factors such as predation, parasitism and exposure on reproductive success. Large-bodied secondary cavity-nesting birds rely on large cavities in mature trees that are often absent or reduced in anthropogenically disturbed forests. Hence, the availability of high-quality nest-sites may be limited for these species, potentially reducing reproductive success. The aim of this study was to investigate nest-site selection and the effect of nest-site features on reproductive success in the critically endangered Great Green Macaw <i>Ara ambiguus</i> in northern Costa Rica. We show that Great Green Macaws select nest-sites according to the characteristics of the cavity and the tree in which they are located. Moreover, reproductive success is a function of certain cavity features. However, the availability of high-quality cavities, those with features associated with higher reproductive success, is potentially limited. By studying nest-site selection and productivity together, we have identified that the availability of high-quality cavities could potentially limit the future recovery of the critically endangered Great Green Macaw.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13262","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45187547","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":"Choice of model and re-nesting probability function influences behaviour of avian seasonal productivity models and their demographic predictions","authors":"Patrick J. C. White,&nbsp;Chris Stoate,&nbsp;Nicholas J. Aebischer,&nbsp;John Szczur,&nbsp;Lucy Ferrer,&nbsp;Ken Norris","doi":"10.1111/ibi.13267","DOIUrl":"10.1111/ibi.13267","url":null,"abstract":"<p>Measuring seasonal productivity is difficult in multi-brooded species without labour-intensive ringing studies. Individual-based (IB) models have been used to estimate seasonal productivity with no direct knowledge of number of nesting attempts, but they are often based on simplified re-nesting probability (φ_<i>R</i>) step-functions instead of observed or more biologically plausible ones. We present a new, open-source IB seasonal productivity model parameterized from studies of Black Redstart <i>Phoenicurus ochruros</i> and Yellowhammer <i>Emberiza citrinella</i>. We examined how the φ_<i>R</i> function shape (empirical versus simplified) influenced (1) model performance, (2) re-nesting compensation and (3) population-level predictions of a simulated management intervention. Population-level predictions were made only for Yellowhammer as we had more detailed demographic data, such as survival rates, available. Pattern-oriented modelling revealed that IB models produced realistic within-population distributions of breeding parameters, and those specified with an observed or empirically derived φ_<i>R</i> function generally outperformed those specified with simpler step functions. Strength of re-nesting compensation differed depending on the φ_<i>R</i> function used. For Yellowhammers, type of φ_<i>R</i> function in IB models marginally influenced population-level predictions of a simulated management intervention (potential population growth rate increased between 23% and 29% relative to no management intervention). In contrast, a simple deterministic productivity model, which did not simulate re-nesting compensation, predicted a 41% increase in potential population growth. At a population level, choice of φ_<i>R</i> function may have less influence on IB model predictions, but choice of model itself (IB versus deterministic) may have substantial impact. We discuss how more biologically plausible φ_<i>R</i> functions might either be observed directly, derived from nest data, or estimated from proxy information such as moult or brood patch changes.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13267","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47002863","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":"Abundance-related systematic bias in the quantification of phenology using site presence-based survey methods","authors":"Mark J. Eddowes","doi":"10.1111/ibi.13265","DOIUrl":"10.1111/ibi.13265","url":null,"abstract":"<p>Reliable quantification of the timing of spring phenology is important to the understanding of ecological responses to climate change. Citizen science data have a potentially useful role supporting these types of studies. Site presence-based methods represent a relatively simple means of following spring phenology, including migrant bird arrival. However, binary presence/absence observations are ill-suited to following the build-up of individuals during the spring emergence or arrival period because presence may be detected uniformly after a small proportion only of the population is present. The reliability of this survey method has been evaluated by mathematical modelling, further supported by comparison of model predictions with arrival date estimates determined in previous field studies. Modelling demonstrates a systematic abundance-dependent bias in median arrival dates estimated using site presence-based survey methods in which the apparent distribution is shifted increasingly ahead of the true distribution with increasing abundance, a feature also evident in field observations. Since this error in the estimate changes with abundance, abundance changes with time will lead to a distorted picture of the phenological trend with time, impacting on the reliability of these methods for characterizing phenological events. The model provides a general framework for identifying when this inherent bias will arise, and for compensating for it by reference to count data obtained from other sources, thereby assisting in the provision of improved estimates of phenological change. To ensure that the most appropriate conclusions concerning phenological change are drawn from studies using site presence data, it is imperative that these identified methodological limitations are recognized and properly considered during data interpretation.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45993053","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":"Birds and people: from conflict to coexistence","authors":"Barry J. McMahon,&nbsp;Beatriz Arroyo,&nbsp;Nils Bunnefeld,&nbsp;Martina Carrete,&nbsp;Francis Daunt,&nbsp;Juliette C. Young","doi":"10.1111/ibi.13260","DOIUrl":"10.1111/ibi.13260","url":null,"abstract":"<p>Negative interactions between humans and animals are becoming increasingly frequent, as wild habitats shrink and human presence and activities expand throughout the world. Conflicts between people over conservation are one of the outcomes of this increased interaction, with severe consequences for both wildlife and people. Globally, conflicts can arise across diverse ecosystems, species and circumstances. Even if most attention in wildlife-related conflicts has been on mammals, birds are also often at the centre of such conflicts, but conflict research is still not explicitly present in ornithological literature. Examples of such conflicts include those related to birds and agriculture, forestry, hunting, fishing and public health interests. Conflicts are often more complex than initial assessments might suggest, involving ecological, economic, cultural, social and political elements. Reflecting the complexity of these issues and their increasing relevance to bird conservation, a British Ornithologists' Union conference was organized in November 2021 that aimed to highlight examples of conflicts that exist between people over birds and their conservation. Building on this conference, we provide here a review of key themes relating to the understanding of conflicts, including the importance of conflict perceptions, the collaboration between multiple disciplines and the different types of knowledge needed to better understand conflicts. We then consider the management of bird conservation conflicts, including the key issues of dealing with uncertainty, the role of technical solutions and the importance of collaboration and building trust, illustrating each theme with real-world examples. Finally, we outline potential future conflicts around bird conservation and how best to address them proactively.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13260","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46397809","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":"Variation in flight characteristics associated with entry by eagles into rotor-swept zones of wind turbines","authors":"Brian W. Rolek,&nbsp;Melissa A. Braham,&nbsp;Tricia A. Miller,&nbsp;Adam E. Duerr,&nbsp;Todd E. Katzner,&nbsp;Christopher J. W. McClure","doi":"10.1111/ibi.13264","DOIUrl":"10.1111/ibi.13264","url":null,"abstract":"<p>Automated curtailment of wind turbines can reduce fatality rates of wildlife but the resulting increased number of curtailments can reduce power generation. Tailoring curtailment criteria for each individual turbine could reduce unnecessary curtailment, yet it is unknown whether the risk to wildlife varies among turbines. We demonstrate turbine-specific variation in the speed, altitude, approach angle and distance metrics associated with entry by eagles into rotor-swept zones. Our results thus illustrate the potential value of turbine-specific curtailment criteria to reduce fatality rates of wildlife at wind energy facilities.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13264","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44923020","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":"Comparing migratory connectivity across species: The importance of considering the pattern of sampling and the processes that lead to connectivity","authors":"Will Cresswell,&nbsp;Robert Patchett","doi":"10.1111/ibi.13261","DOIUrl":"10.1111/ibi.13261","url":null,"abstract":"<p>Measuring the degree of migratory connectivity – how much and where different populations of species mix as they migrate over their annual cycle – is important because it informs the understanding of the evolution of migration, how populations will be affected by both habitat and climate change, and which areas to prioritize for conservation. But existing measures of connectivity may be difficult to compare because they measure different things and are confounded by sampling bias. Here we use tagging data from all available published landbird tracks up to July 2019 (224 populations, 86 species and 1524 individuals tracked in the three main global flyways) to identify robust measures to compare migratory connectivity across species. We consider two widely used descriptive measures: (1) degree of breeding population overlap on the non-breeding grounds and (2) Mantel correlation, which tests the degree of spatial autocorrelation between the breeding and non-breeding individuals; as well as one causative measure of the main process that leads to connectivity patterns: migratory spread of individuals from the same breeding population across the non-breeding area. We investigated the sensitivity of these three measures to the distance between breeding locations of sampled populations (breeding distance) and their sample size. We also considered the confounding effects of migration distance because longer migrations decreased overlap and increased Mantel correlations and migratory spread. We found that the degree of overlap between breeding populations on the non-breeding grounds decreased with increasing breeding distance and increased with increasing sample size. Mantel correlation coefficients also increased significantly with increasing breeding distance; sample size did not affect accuracy, but precision was greatly improved above a sample size of about 15 individuals. Migratory spread, however, was independent of breeding distance; sample size had only small effects on accuracy and precision, with no significant effects when more than four individuals per population were included. Furthermore, migratory spread was highly positively correlated with the maximum non-breeding range. Overlap and Mantel correlations were highly confounded by the spatial pattern and amount of sampling, whereas migratory spread was relatively unconfounded, even by migratory distance. Although any descriptive migratory connectivity measure can help set priorities by determining current areas for conservation on the non-breeding grounds, migratory spread, which leads to these patterns, needs fewer data, is comparable, and gives information on evolutionary flexibility and so ability to deal with changing habitat and climate.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13261","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41880337","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":"Investigating connectivity and seasonal differences in wind assistance in the migration of Common Sandpipers","authors":"Thomas O. Mondain-Monval,&nbsp;Richard du Feu,&nbsp;Ron W. Summers,&nbsp;Stuart P. Sharp","doi":"10.1111/ibi.13259","DOIUrl":"10.1111/ibi.13259","url":null,"abstract":"<p>Many migratory bird species have undergone recent population declines, but there is considerable variation in trends between species and between populations employing different migratory routes. Understanding species-specific migratory behaviours is therefore of critical importance for their conservation. The Common Sandpiper <i>Actitis hypoleucos</i> is an Afro-Palaearctic migratory bird species whose European populations are in decline. We fitted geolocators to individuals breeding in England or wintering in Senegal to determine their migration routes and breeding or non-breeding locations. We used these geolocator data in combination with previously published data from Scottish breeding birds to determine the distributions and migratory connectivity of breeding (English and Scottish) and wintering (Senegalese) populations of the Common Sandpiper, and used simulated random migrations to investigate wind assistance during autumn and spring migration. We revealed that the Common Sandpipers tagged in England spent the winter in West Africa, and that at least some birds wintering in Senegal bred in Scandinavia; this provides insights into the links between European breeding populations and their wintering grounds. Furthermore, birds tagged in England, Scotland and Senegal overlapped considerably in their migration routes and wintering locations, meaning that local breeding populations could be buffered against habitat change, but susceptible to large-scale environmental changes. These findings also suggest that contrasting population trends in England and Scotland are unlikely to be the result of population-specific migration routes and wintering regions. Finally, we found that birds used wind to facilitate their migration in autumn, but less so in spring, when the wind costs associated with their migrations were higher than expected at random. This was despite the wind costs of simulated migrations being significantly lower in spring than in autumn. Indeed, theory suggests that individuals are under greater time pressures in spring than in autumn because of the time constraints associated with reproduction.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13259","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48179195","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 need for a flyway approach in defining the onset of prenuptial migration of huntable bird species across Europe","authors":"Alessandro Andreotti,&nbsp;Arianna Aradis,&nbsp;Giacomo Assandri,&nbsp;Gaia Bazzi,&nbsp;Jacopo Giuseppe Cecere,&nbsp;Andrea Ferri,&nbsp;Simona Imperio,&nbsp;Andrea Marcon,&nbsp;Riccardo Nardelli,&nbsp;Simone Pirrello,&nbsp;Elisabetta Raganella Pelliccioni,&nbsp;Fernando Spina,&nbsp;Lorenzo Serra","doi":"10.1111/ibi.13258","DOIUrl":"10.1111/ibi.13258","url":null,"abstract":"<p>The identification of the onset of prenuptial migration is fundamental in defining the closing date of the hunting season in compliance with the EU Birds Directive. Here, we describe the process and country-by-country approach currently followed by the European Commission to define the onset of prenuptial migration for each huntable bird species and Member State, highlighting the resulting discrepancies and inconsistencies in the starting dates of prenuptial migration between neighbouring countries. To overcome these issues, we propose the adoption of a flyway approach with a shared, analytically and biologically sound method for defining the onset of migration.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13258","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46255764","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":"Song complexity is associated with habitat quality in an upland passerine","authors":"Javier García,&nbsp;Paola Laiolo,&nbsp;Susana Suárez-Seoane","doi":"10.1111/ibi.13257","DOIUrl":"10.1111/ibi.13257","url":null,"abstract":"<p>Understanding the influence of intrinsic (genetic and morphological) and extrinsic (geographical, environmental and social) factors on the performance and spatial differentiation of sexual signals, such as bird song, can help identify behavioural indicators of individual quality, habitat degradation and social environment. We used the Iberian Bluethroat <i>Luscinia svecica azuricollis</i>, a migratory bird that breeds in fragmented landscapes dominated by shrublands, as a case study to: (1) assess how a set of acoustic indicators of song performance are driven by intrinsic and extrinsic factors; and (2) contrast deterministic (adaptations to the environmental context and morphological constraints) vs. stochastic (differentiation by geographical isolation) explanations for song differentiation patterns. We explored acoustic indicators of song performance (spectral, temporal and song complexity) in relation to parameters related to genetic structure, body size, habitat type, habitat quality (assessed through a spatially explicit modelling approach) and social context (population abundance and songbird community composition). Then, we explored the contribution of genetic, geographical and environmental dissimilarity to song diversification across space. Our results highlight an association of song spectral variables with genetic structure and a significant connection between song complexity and duration with habitat quality. We found no relationship between social features and acoustic variables, or between song differentiation and genetic or geographical distances. There was, however, a correlation between song differentiation and environmental dissimilarity. We recommend the consideration of song complexity as an indicator of habitat quality.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48945580","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":"British Ornithologists' Union Godman-Salvin Prize","authors":"Anthony D. Fox","doi":"10.1111/ibi.13255","DOIUrl":"10.1111/ibi.13255","url":null,"abstract":"<p>Cao Lei has been passionate about birds since she grew up among pigeons and domestic geese as a small child. This passion was kindled by her careful observation and understanding of urban birds as a child and student, but remains pre-eminent in all she does, perhaps the secret behind her success as a communicator of science and mentor to her numerous students. It also explains her quite extraordinary ability to coordinate waterbird researchers not just within China, but also in Russia, Mongolia, Japan and Korea, throughout Far East Asia and much of the world, in pioneering research and monitoring programmes that have not just established new knowledge in Asia, but broken new ground in ornithology and movement ecology. Her contribution in creating functional research and conservation networks across cultural divides in regions formerly lacking scientific collaboration has been truly impressive.</p><p>After graduating with a Biology degree from Hunan Normal University in her home town of Changsha in 1991 and a PhD from Lanzhou University, Gansu Province in 2005, Cao Lei was appointed Associate Professor at the School of Life Sciences, University of Science and Technology of China (USTC), Hefei, Anhui Province in December 2005. Due to her prodigious output, Lei was promoted to Full Professor at USTC in December 2010 and in 2013, she moved to take up her present position as Professor at the State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences in Beijing.</p><p>Lei studied the breeding biology and behaviour of Red-footed Boobies (<i>Sula sula</i>) on Dong Island, in the Xisha Archipelago of the northern South China Sea, during the 2003 and 2004 breeding seasons, but by then her attention was already turning to waterbirds of freshwater habitats. Lei had met Mark Barter, adviser for the first ever WWF waterbird surveys of the Middle and Lower Yangtze River Floodplain in 2004 and 2005, and had become fascinated by the systematic approach of counting waterbirds at wetlands, especially by applying shorebird survey techniques to the massive inland freshwater wetlands of the Yangtze River Floodplain. Mark and Lei were instrumental in developing pioneer census methods, training survey teams and compiling survey reports accessible to all, leading to the generation of the first rigorous flyway population estimates for many of the large bodied waterbirds of the region published in two ground-breaking publications in <i>Biological Conservation</i> in 2008 (<b>141</b>: 2301–2309) and 2010 (<b>143</b>: 650–659). As her studies showed declines among many waterbirds of the Yangtze since the 1990s, so her research expanded to attempt to understand better the ecology of these species, their habitat requirements and their conservation needs (for example <i>Aquatic Conservation</i> <b>21</b>: 82–91).</p><p>Much of Professor Cao Lei's research work since her PhD has therefore centred on wetland ","PeriodicalId":13254,"journal":{"name":"Ibis","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13255","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44735696","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}