Journal of Avian Biology最新文献

{"title":"Genetic differentiation between two subspecies of Emberiza schoeniclus and open forest bunting's evolution inferred from mitogenomes","authors":"Iván Alambiaga,&nbsp;Roberto González,&nbsp;Pablo Vera,&nbsp;Juan S. Monrós,&nbsp;Ferran Palero","doi":"10.1111/jav.03087","DOIUrl":"10.1111/jav.03087","url":null,"abstract":"<p>The reed bunting, <i>Emberiza schoeniclus</i> (Linnaeus 1758), is the only member of the genus adapted to Mediterranean wetlands, where some subspecies are critically endangered. The first complete mitogenome of the eastern Iberian reed bunting (<i>E. s. witherbyi</i>) is presented here and compared with an unpublished mitogenome obtained in northeast Asia (most likely <i>E. s. pyrrhulina</i>). Genetic distance analyses are consistent with the new reed bunting data corresponding to two distinct lineages of <i>E. schoeniclus</i>. A new fossil-calibrated phylogeny suggests that open forest buntings have suffered two rapid speciation events from Late Miocene to Pleistocene, that seem to be correlated with major climatic changes and habitat shifts. Adaptation to a new ecological niche (i.e. wetlands) could have favoured the reed bunting expansion across the Palearctic. The high intraspecific variation observed today could result from the establishment of resident populations within small areas, potentially acting as a climatic refuge.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 5-6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03087","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42173932","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":"Energetic synchrony throughout the non-breeding season in common guillemots from four colonies","authors":"Lila Buckingham,&nbsp;Francis Daunt,&nbsp;Maria I. Bogdanova,&nbsp;Robert W. Furness,&nbsp;Sophie Bennett,&nbsp;James Duckworth,&nbsp;Ruth E. Dunn,&nbsp;Sarah Wanless,&nbsp;Michael P. Harris,&nbsp;David C. Jardine,&nbsp;Mark A. Newell,&nbsp;Robin M. Ward,&nbsp;Ewan D. Weston,&nbsp;Jonathan A. Green","doi":"10.1111/jav.03018","DOIUrl":"10.1111/jav.03018","url":null,"abstract":"<p>The non-breeding season presents significant energetic challenges to birds that breed in temperate or polar regions, with clear implications for population dynamics. In seabirds, the environmental conditions at non-breeding sites drive food availability and the energetic cost of regulatory processes, resulting in variation in diet, behaviour and energetics; however, very few studies have attempted to understand if and how these aspects vary between populations. We investigated whether non-breeding location influenced diet, behaviour and energetics in the common guillemot <i>Uria aalge</i>. We studied guillemots from four UK breeding colonies, two located on the west coast of Scotland and two on the east. We quantified non-breeding distribution, foraging behaviour and activity budgets of 39 individuals from July to March, using geolocation–immersion loggers and time-depth recorders, and used feather stable isotope signatures to infer diet during the post-breeding moult. We calculated energy expenditure and investigated whether the peak (an indicator of the potential vulnerability to marine threats) varied between colonies. Individuals were spatially segregated according to the coastline they breed on, with west coast guillemots distributed off the west coast of the UK and east coast guillemots distributed off the east coast. Diet and behaviour were more similar in guillemots that shared a breeding coastline than those that did not, as west coast guillemots foraged at a lower trophic level, spent less time diving and engaged in more pelagic foraging than east coast guillemots. However, energy expenditure was remarkably similar between colonies, peaking during late February/early March, indicating that, during our study period, there was high synchrony between colonies in the timing of potential vulnerability to marine threats. Therefore, any anthropogenic changes that result in decreased food availability or increased energy expenditure during late winter may have greater impacts on energy balance, with consequences for population dynamics.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 1-2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49338636","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":"Migration strategies, performance and annual activity budget in a short-distance migrant, the common starling Sturnus vulgaris","authors":"Viesturs Vīgants,&nbsp;Oskars Keišs,&nbsp;Ivo Dinsbergs,&nbsp;Valts Jaunzemis,&nbsp;Elza Marija Zacmane,&nbsp;Ance Priedniece,&nbsp;Martins Briedis","doi":"10.1111/jav.03080","DOIUrl":"10.1111/jav.03080","url":null,"abstract":"<p>Migratory birds typically separate energetically demanding parts of the annual cycle like breeding, moult and migration with some species engaging in so-called moult-migration. Moult-migration is known to occur in starlings from the northern breeding populations, however, little is known about the dynamics of this phenomenon and the costs and benefits for the involved individuals. Here, using state-of-the art multi-sensor geolocators we gathered information about the annual cycles of 10 starlings from two breeding sites in Latvia. We used a novel analytical approach based on atmospheric pressure measurements to reveal that all but one of the tracked individuals migrated to wintering sites in the British Isles. Tracking data exposed two separate migration strategies – 1) departure from the breeding grounds in mid-June soon after chick fledging with long stationary periods at moulting sites approx. 900 km westward (n = 5 of 10); 2) residing in close vicinity of the breeding sites up until the end of October (n = 5 of 10). Accelerometer data revealed significantly higher activity budgets during moult for the individuals exhibiting moult-migration. Furthermore, birds that underwent moult-migration arrived at the breeding sites in the following year on average 10 days later and showed significantly higher activity levels during the pre-breeding period compared to birds without moult-migration. Activity tracking also showed that 67% of all migratory flights were performed during the night, contradicting previous assumptions of starlings being predominantly diurnal migrants. Maximum recorded flight altitudes reached 2500 m a.s.l. and the longest uninterrupted flight lasted 22.5 h. Our results highlight energetic trade-offs of moult-migration in starling, but their downstream consequences remain to be tested.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 5-6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03080","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42370295","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":"Shifting environmental predictors of phenotypes under climate change: a case study of growth in high latitude seabirds","authors":"Drew Sauve,&nbsp;Vicki L. Friesen,&nbsp;Scott A. Hatch,&nbsp;Kyle H. Elliott,&nbsp;Anne Charmantier","doi":"10.1111/jav.03062","DOIUrl":"10.1111/jav.03062","url":null,"abstract":"<p>Climate change is altering species' traits across the globe. To predict future trait changes and understand the consequences of those changes, we need to know the environmental drivers of phenotypic change. In the present study, we use multi-decadal long datasets to determine periods of within-year environmental variation that predict growth of three seabird species. We evaluate whether these periods changed over time and use them to predict future growth under climate change. We find that predictions of trait change could be improved by considering that 1) the timing of environmental factors used to predict traits (predictive-environmental features) can change over time, and 2) the type of predictive-environmental features can change over time. We find evidence of changes in the timing of environmental predictors in all populations studied and evidence for a change in the type of predictor in the studied Arctic murre population. Environmental models of growth predict that warming conditions will decrease growth rates and bird body sizes in two species (black-legged kittiwake <i>Rissa tridactyla</i> and glaucous-winged gull <i>Larus Larus glaucescens</i>), but not the third (thick-billed murre <i>Uria lomvia</i>). Consequently, climate change is likely to decrease fledging rates in the gulls and kittiwakes. Further, we find that sea ice-cover historically predicted murre chick growth well, but no longer does – instead air temperature is now a better predictor of murre growth. Our study highlights a need to investigate whether environmental determinants of trait variation commonly shift in a changing climate and whether such changes have implications for adaptation to novel environments.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 5-6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43873649","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":"Evolution of female song and duetting in the chaffinch (Fringilla) species complex","authors":"Joseph E. J. Cooper,&nbsp;Eduardo Garcia-del-Rey,&nbsp;Robert F. Lachlan","doi":"10.1111/jav.03069","DOIUrl":"10.1111/jav.03069","url":null,"abstract":"<p>Female song is ancestral to songbirds and shows considerable phylogenetic signal, but its presence also appears to be labile and correlated with life-history and ecology. While previous studies have examined the evolution of female song across species-rich families, here we studied female song in island populations of a recently diverged species-complex, the chaffinches (genus <i>Fringilla</i>). We show this behaviour has recently evolved in these populations, and probably on two independent occasions. In <i>F. teydea</i>, female song is performed in loose duets with males, while in <i>F. coelebs</i>, female song is produced solo. Populations with singing females showed year-round territoriality and were found in regions with low seasonality – both factors previously connected with high rates of female singing. To determine the relative saliency of female songs to conspecifics, and the degree to which they instigate territorial defence behaviours, we performed a series of speaker playback experiments. In <i>F. c. canariensis</i>, female song could induce comparable responses to male song, whilst duetting <i>F. teydea</i> playback produced similar responses to solo songs, and therefore may relate to within-pair communication instead. Our results suggest female song can be a highly labile trait that can evolve over short evolutionary timescales.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 3-4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47273574","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":"Low-temperature nights delay the timing of breeding in a wild songbird","authors":"Chen-Yang Liu,&nbsp;Juha Merilä,&nbsp;Yang Liu,&nbsp;Lei Lv","doi":"10.1111/jav.03084","DOIUrl":"10.1111/jav.03084","url":null,"abstract":"<p>Global climate change has posed widespread challenges to the ecological process critical to the fitness of many wild organisms, such as reproductive phenology. Many bird species have advanced their reproductive phenology in response to the increases in spring temperatures. However, the mechanism of how climate influences the timing of breeding is still often unclear in many species. We explored the relationship between the timing of breeding and spring temperatures based on 14 years of data on hair-crested drongos <i>Dicrurus hottentottus</i> in the wild. By applying a ‘sliding window' approach, we aimed to identify the time window and weather variable that best explains the timing of breeding at both population and individual levels. We found that the more nights with a minimum temperature below 17°C, around three weeks earlier than the peak reproduction, delayed the breeding time. Low night temperatures may force females to allocate more energy to thermoregulation and therefore physiologically constrain egg-laying. Although annual minimum and maximum temperatures have increased over the study period, the timing of breeding showed no trend as there was no change in the number of low-temperature nights in the relevant period across years. The repeatability of the laying date for individual females (R = 0.211) and across the years (R = 0.270) were low indicating that drongos were flexible in adjusting their breeding phenology to environmental variation. These results suggest an effect of low night temperature on avian breeding phenology. This effect may apply commonly across bird species considering shared physiological constraints.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 3-4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44714394","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":"Gut microbiome composition associated with Plasmodium infection in the Eurasian tree sparrow","authors":"Sage D. Rohrer,&nbsp;Briana Q. Robertson,&nbsp;Lon M. Chubiz,&nbsp;Patricia G. Parker","doi":"10.1111/jav.03027","DOIUrl":"10.1111/jav.03027","url":null,"abstract":"<p>Recent expansion of microbiome research has uncovered connections between resident microbial communities and blood parasite risk, establishing the potential for microbial disease treatments such as probiotics in the future. However, this field has largely focused on humans and model organisms, leaving much unknown about how microbial communities might directly or indirectly impact parasite infection in wild populations and non-mammals. To contribute to this knowledge base in wild birds, we collected fecal and blood samples from wild Eurasian tree sparrows (<i>Passer montanus</i>) in the United States to test for associations between blood parasite infection and the gut microbiome. We used a widespread molecular approach to test 81 samples from peripheral blood for <i>Plasmodium</i> and <i>Haemoproteus</i>, and we characterized the gut microbiome using fecal samples as a proxy. Neither alpha nor beta diversity significantly varied with detected <i>Plasmodium</i> infection. However, differential abundance analysis highlighted a number of significantly varying bacteria, with the greatest representation within the phyla <i>Proteobacteria</i> and <i>Firmicutes</i> in <i>Plasmodium</i>-infected birds. These differentially abundant taxa offer a starting point for experimental work establishing the relationship between microbial abundance and <i>Plasmodium</i> infection.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 1-2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46827309","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":"Local weather and endogenous factors affect the initiation of migration in short- and medium-distance songbird migrants","authors":"Theodore J. Zenzal,&nbsp;Darren Johnson,&nbsp;Frank R. Moore,&nbsp;Zoltán Németh","doi":"10.1111/jav.03029","DOIUrl":"10.1111/jav.03029","url":null,"abstract":"<p>Migratory birds employ a variety of mechanisms to ensure appropriate timing of migration based on integration of endogenous and exogenous information. The cues to fatten and depart from the non-breeding area are often linked to exogenous cues such as temperature or precipitation and the endogenous program. Shorter distance migrants should rely heavily on environmental information when initiating migration given relatively close proximity to the breeding area. However, the ability to fatten and subsequently depart may be linked to individual circumstances, including current fuel load and body size. For early and late departing migrants, we investigate effects of temperature, precipitation, lean body mass, fuel load and day of year on the initiation of migration (i.e. fuel load and departure timing) from the non-breeding region by analyzing 21 years of banding data for four species of short- and medium-distance migrants. Temperatures at the non-breeding area were related to temperatures at potential stopover areas. Despite local cues being predictive of conditions further north, the amount variation explained by local weather conditions in our models differed by species and temporal period but was low overall (&lt; 33% variation explained). For each species, we also compared lean body mass and fuel load between early and late departing migrants, which showed mixed results. Our combined results suggest that most individuals migrating short or medium distances in our study did not time the initiation of migration with local predictive cues alone, but rather other factors such as lean body mass, fuel load, day of year, which may be a proxy for the endogenous program, and those beyond the scope of our study also influenced the initiation of migration. Our study contributes to understanding which factors influence departure decisions of short- and medium-distance migrants as they transition from the non-breeding to the migratory phase of the annual cycle.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 3-4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47970374","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":"Egg shape variation across the distribution of the partially migratory fork-tailed flycatcher Tyrannus savana","authors":"Valentina Gómez-Bahamón,&nbsp;Elizabeth R. Chen,&nbsp;Diego T. Tuero,&nbsp;María de las Nieves Sabio,&nbsp;Kevin Tkach,&nbsp;Marcelo Assis,&nbsp;Neander M. Heming,&nbsp;Miguel Â. Marini,&nbsp;John M. Bates","doi":"10.1111/jav.03006","DOIUrl":"10.1111/jav.03006","url":null,"abstract":"<p>The evolution of egg shape across birds has been associated with breeding ecology, body shape constraints and nest microclimate, among other factors. We model the effects of migratory status, climate, clutch size and egg volume on egg shape variation over the distribution of fork-tailed flycatchers <i>Tyrannus savana</i>. Although migratory status and climatic variables appear to be influencing intraspecific egg shape, these effects are not significant when accounting for nest identity as a random factor (i.e. eggs from the same clutch are more similar than to other clutches). Moreover, the differences that we observe in egg shape are not explained by variation in egg size. Finally, within a breeding population of migratory fork-tailed flycatchers, egg shape does not vary with respect to egg-laying order and/or female wing length (standardized by weight). Egg shape is highly variable within populations of fork-tailed flycatchers but not within clutches, suggesting that female traits, apart from migratory status and wing morphology, constrain egg shape variation.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 1-2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49511798","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":"Nest orientation and proximity to snow patches are important for nest site selection of a cavity breeder at high elevation","authors":"Carole A. Niffenegger,&nbsp;Christian Schano,&nbsp;Raphaël Arlettaz,&nbsp;Fränzi Korner-Nievergelt","doi":"10.1111/jav.03046","DOIUrl":"10.1111/jav.03046","url":null,"abstract":"<p>Timing and location of reproduction are central to reproductive success across taxa. Among birds, many species have evolved specific strategies to cope with environmental variability including shifts in timing of reproduction to track resource availability or selecting suitable nest location. In mountain ecosystems, complex topography and pronounced seasonality result in particularly high spatiotemporal variability of environmental conditions. Moreover, the risk of climate-induced resource mismatches is particularly acute in mountain regions given that temperature is increasing more rapidly than in the lowlands. We investigated how a high-elevation passerine, the white-winged snowfinch <i>Montifringilla nivalis</i>, selects its nest site in relation to nest cavity characteristics, habitat composition and snow condition. We used a combination of field habitat mapping and satellite remote sensing to compare occupied nest sites with randomly selected pseudo-absence sites. In the first half of the breeding season, snowfinches preferred nest cavities oriented towards the morning sun while they used cavities proportional to their availability later on. This preference might relate to the nest microclimate offering eco-physiological advantages, namely thermoregulatory benefits for incubating adults and nestlings under the harsh conditions typically encountered in the alpine environment. Nest sites were consistently located in areas with greater-than-average snow cover at hatching date, likely mirroring the foraging preferences for tipulid larvae developing in meltwater along snowfields. Due to the particularly rapid climate shifts typical of mountain ecosystems, spatiotemporal mismatches between foraging grounds and nest sites are expected in the future. This may negatively influence demographic trajectories of the white-winged snowfinch. The installation of well-designed nest boxes in optimal habitat configurations could to some extent help mitigate this risk.</p>","PeriodicalId":15278,"journal":{"name":"Journal of Avian Biology","volume":"2023 3-4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jav.03046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48379866","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}