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Asian Koels do not lay eggs matching the host eggs' phenotype 亚洲Koels产的蛋与寄主蛋的表型不匹配
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-11-26 DOI: 10.1111/ibi.70010
Mominul Islam Nahid, Virginia E. Abernathy, Peter S. Ranke, Wei Liang
{"title":"Asian Koels do not lay eggs matching the host eggs' phenotype","authors":"Mominul Islam Nahid,&nbsp;Virginia E. Abernathy,&nbsp;Peter S. Ranke,&nbsp;Wei Liang","doi":"10.1111/ibi.70010","DOIUrl":"https://doi.org/10.1111/ibi.70010","url":null,"abstract":"<p>Whether cuckoos randomly choose host nests in which to lay their eggs, or strategically choose host nests containing eggs that best match their own in appearance, is not well understood. In this study, combining avian visual modelling and a controlled field experiment, we objectively studied the ‘egg-matching hypothesis’ using the brood parasitic Asian Koel <i>Eudynamys scolopaceus</i> and one of its main hosts in Bangladesh, the Common Myna <i>Acridotheres tristis</i>. Common Mynas rarely reject foreign eggs, so we expected that Asian Koels would not differentiate between egg appearances. To directly assess nest selection behaviour, we installed 100 paired nestboxes – each pair comprising one nest with restricted koel access and another accessible nest. We demonstrate that Asian Koels do not differentiate between active Common Myna nests or dummy nests with Common Quail <i>Coturnix coturnix</i> eggs or dummy nests without quail eggs during egg-laying. Parasitism was also significantly less frequent (2.1%, <i>n</i> = 141) in boxes with smaller openings that were less accessible to koels, whereas 27.8% (<i>n</i> = 18) of myna nests in nestboxes with large openings were parasitized. Koels parasitized 23.4% (<i>n</i> = 141) of dummy nests with eggs in nestboxes with large openings. None of the dummy nests in boxes with small openings were parasitized. Koels laid eggs in active myna nests or dummy nests only when at least one active myna clutch was present. This lack of discrimination between these different experimental groups suggests that Asian Koels were not matching host eggs in this experiment. In addition, Common Myna eggs from parasitized nests did not appear more like Asian Koel eggs compared with Common Myna eggs from unparasitized nests. Together, these findings suggest that, rather than attempting to lay eggs in nests that best match their own eggs in appearance, Asian Koels lay eggs that poorly match in colour to the local hosts' eggs.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"492-503"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147569434","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}
引用次数: 0
Not everyone is shrinking: increases in body mass and wing length in a Sand Martin (Riparia riparia) population in northwestern Italy over two decades 并非所有人都在萎缩:20年来,意大利西北部的沙马丁(Riparia Riparia)种群的体重和翅膀长度都在增加
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-11-27 DOI: 10.1111/ibi.70020
Giulia Masoero, Alberto Tamietti
{"title":"Not everyone is shrinking: increases in body mass and wing length in a Sand Martin (Riparia riparia) population in northwestern Italy over two decades","authors":"Giulia Masoero,&nbsp;Alberto Tamietti","doi":"10.1111/ibi.70020","DOIUrl":"https://doi.org/10.1111/ibi.70020","url":null,"abstract":"<p>In recent decades, vertebrates, particularly birds, have exhibited notable morphological changes in response to climate change. In birds, these temporal trends usually entail a decrease in body mass and an increase in wing length, sometimes interpreted as a compensatory strategy to maintain migration. This study investigated temporal trends over more than 20 years (2002–23) in wing length and body mass and their relation to environmental conditions, in a Sand Martin <i>Riparia riparia</i> population breeding in northwestern Italy. Our findings revealed a significant increase in both traits within the studied population. Although environmental conditions correlated with Sand Martin morphology, they showed no temporal trend. These morphological trends contrast with those exhibited by most long-distance migrants. We suggest that this difference may arise from varying climatic or environmental conditions during early ontogenetic stages, alongside a reduction in pressures selecting for small size associated with the relatively more stable climatic conditions in the wintering region.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"674-686"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.70020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570071","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}
引用次数: 0
Inadequate reproductive success is a potential cause of Spotted Flycatcher (Muscicapa striata) population decline in England 繁殖成功率不足是英国斑捕蝇(Muscicapa striata)种群下降的潜在原因
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-10-05 DOI: 10.1111/ibi.13460
Malcolm D. Burgess, Danaë K. Sheehan, Patrick J. C. White, Guy Q. A. Anderson, Gareth Fisher, Philip V. Grice, Will J. Peach, Ken Norris
{"title":"Inadequate reproductive success is a potential cause of Spotted Flycatcher (Muscicapa striata) population decline in England","authors":"Malcolm D. Burgess,&nbsp;Danaë K. Sheehan,&nbsp;Patrick J. C. White,&nbsp;Guy Q. A. Anderson,&nbsp;Gareth Fisher,&nbsp;Philip V. Grice,&nbsp;Will J. Peach,&nbsp;Ken Norris","doi":"10.1111/ibi.13460","DOIUrl":"https://doi.org/10.1111/ibi.13460","url":null,"abstract":"<p>Most demographic studies of multi-brooded species require information on breeding success per nesting attempt and the number of nesting attempts made to derive a measure of whole-season productivity. However, measuring the number of nesting attempts is often challenging. We used individual-based re-nesting models to estimate whole-season productivity for the Spotted Flycatcher <i>Muscicapa striata</i> in England to investigate demographic drivers of long-term population decline. Between 2004 and 2006 we monitored 248 nests in two regions of England covering three broad nesting habitats: farmland, garden and woodland. We combined field-derived measures of nesting start date, clutch size, hatching and fledging rates, whole-nest survival and re-nesting intervals, with nest-stage durations taken from the literature, to estimate whole-season per-pair productivity for each habitat and region combination. We weighted these estimates by the proportion of Spotted Flycatchers counted in each region-habitat (derived from extensive monitoring data for 1994–2006 and 2007–2021) to derive region-specific productivity measures. Finally, we compared these derived empirical productivity measures with the level required to maintain population size given current knowledge of survival rates of UK-breeding Spotted Flycatchers. Whole-season productivity only reached the required threshold for population stability in gardens. Regional estimates of whole-season productivity were substantially lower than the level required for population stability in both regions and both time periods, and the number of nesting attempts needed to achieve stability was also implausibly high in both regions. Assuming the same rates of whole-season productivity for Spotted Flycatchers distributed across these habitats and regions based on Breeding Bird Survey data for 2007–2021, productivity declined further to levels below that needed to sustain the population in all three habitats, mainly as a consequence of lower proportions recorded in gardens in southwest England. Historical and recent population declines of Spotted Flycatchers in eastern and southwest England are likely to have been caused by low productivity, particularly low survival of nests at the egg stage. Our study illustrates the utility of re-nesting models as a tool for understanding the demographic drivers of population change in multi-brooded species.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"479-491"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563633","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}
引用次数: 0
An automated workflow that combines sound-based bird identification and localization 结合基于声音的鸟类识别和定位的自动化工作流程
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-12-08 DOI: 10.1111/ibi.70012
Carsten M. Buchmann, Frank M. Schurr
{"title":"An automated workflow that combines sound-based bird identification and localization","authors":"Carsten M. Buchmann,&nbsp;Frank M. Schurr","doi":"10.1111/ibi.70012","DOIUrl":"https://doi.org/10.1111/ibi.70012","url":null,"abstract":"<p>Field studies of bird communities typically require the fine-scale mapping of individuals. Passive acoustic monitoring combined with localization of individuals is a promising approach to gather such data. Various approaches for the identification of species and localization of individuals have been proposed, but there is so far no fully automated ready-to-use workflow that combines identification and localization. We here present a novel approach based on sound recordings with multiple cost-efficient autonomous recording units (Audiomoths). The workflow uses a well-established artificial intelligence model (BirdNET; other models possible) for species identification and localizes the sources of all identified bird sounds with high accuracy. Tests with replayed sounds of different bird species in an agricultural landscape show that – after filtering out identifications with low identification confidence – the algorithm localizes more than 92% of the sounds within 2 m of the true location (78% &lt;1 m). We used the workflow to localize wild birds, to demonstrate its applicability in a real-world situation and its usefulness for avian ecology. This workflow is completely automated and ready-to-be-used, including by non-experts. It can also be used when strong winds affect the speed of sound or if three-dimensional localizations are of interest. By making data on individual bird locations accessible, the presented work will help to advance fundamental and applied ecology as well as conservation.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"554-570"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.70012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563969","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}
引用次数: 0
A new species of jewel-babbler (Cinclosomatidae: Ptilorrhoa) from the Southern Fold Mountains of Papua New Guinea 巴布亚纽几内亚南部褶皱山的宝石-巴布勒属一新种(圆蝽科:圆蝽属)
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-11-26 DOI: 10.1111/ibi.70016
Iain A. Woxvold, Banak G. Gamui, Leo Legra, Samson Yama, Bonny Koane, Salape Tulai
{"title":"A new species of jewel-babbler (Cinclosomatidae: Ptilorrhoa) from the Southern Fold Mountains of Papua New Guinea","authors":"Iain A. Woxvold,&nbsp;Banak G. Gamui,&nbsp;Leo Legra,&nbsp;Samson Yama,&nbsp;Bonny Koane,&nbsp;Salape Tulai","doi":"10.1111/ibi.70016","DOIUrl":"https://doi.org/10.1111/ibi.70016","url":null,"abstract":"<p>Based on distinctive morphological and vocal characters we describe a new species of jewel-babbler (genus <i>Ptilorrhoa</i>) from the forested karst of the Southern Fold Mountains in Papua New Guinea. The description is based on camera trap data and is presented in accordance with ICZN Declaration 45. The new species is currently known only from the type locality at the top of Iagifu Ridge (1335–1400 m above sea level), a limestone anticline isolated from the main body of New Guinea's central cordillera, where it is uncommon. Given the importance of competitive exclusion in determining <i>Ptilorrhoa</i> distributions, and the near ubiquitous occurrence of congeners, we speculate that Iagifu Ridge may support part of a highly fragmented population that occupies isolated low mountains that do not support <i>Ptilorrhoa leucosticta</i> of higher elevations. Potentially suitable sites may be restricted to the area between Mt Bosavi and Mt Karimui in southern Papua New Guinea.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"431-450"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.70016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147569784","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}
引用次数: 0
Variable social organization and breeding system of a social parrot revealed by genetic analysis 遗传分析揭示了社会性鹦鹉的可变社会组织和繁殖系统
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-09-30 DOI: 10.1111/ibi.13457
Francesca S. E. Dawson Pell, Juan Carlos Senar, Alba Ortega-Segalerva, Terry Burke, Ben J. Hatchwell
{"title":"Variable social organization and breeding system of a social parrot revealed by genetic analysis","authors":"Francesca S. E. Dawson Pell,&nbsp;Juan Carlos Senar,&nbsp;Alba Ortega-Segalerva,&nbsp;Terry Burke,&nbsp;Ben J. Hatchwell","doi":"10.1111/ibi.13457","DOIUrl":"https://doi.org/10.1111/ibi.13457","url":null,"abstract":"<p>Social organization and contributions to reproduction vary widely within and between species that breed in groups. Such variation often arises from the process of group formation, which drives patterns of relatedness and hence the degree of social conflict and co-operation between group members. Using field observations and molecular genetics, we investigated breeding behaviour in an urban population of the highly social Monk Parakeet <i>Myiopsitta monachus</i> to address two objectives. First, we investigated breeding-group frequency, composition and formation, finding that 19% of breeding units were co-operative groups, ranging in size from three to five birds, the remainder being pairs (81%). Group composition was variable with multi-male, multi-female and multi-male–female groups. Relatedness in breeding groups also varied with many containing kin, but some groups containing only non-kin. This variation reflected alternative routes to group formation, including offspring retention by pairs, sibling coalitions and aggregation of unrelated individuals. Secondly, we investigated productivity, reproductive investment and patterns of parentage in relation to the size of breeding units. Productivity did not differ significantly between pairs and groups. We detected extra-pair paternity in 27% of broods raised by pairs, and parentage shared among more than two members of most breeding groups, with joint-nesting by females detected in multi-female groups. In conclusion, the breeding system of the Monk Parakeet defies simple definition, instead showing variable reproductive roles, with potential for both indirect and direct fitness benefits.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"451-464"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13457","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570243","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}
引用次数: 0
How much sampling is enough? Four decades of understorey bird mist-netting across Amazonia define the minimum effort to uncover species assemblage structure 多少采样才足够?四十年来,亚马逊地区的下层鸟类雾网定义了揭示物种组合结构的最小努力
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-12-02 DOI: 10.1111/ibi.70015
Pilar L. Maia-Braga, Anderson S. Bueno, Richard G. Davies, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres
{"title":"How much sampling is enough? Four decades of understorey bird mist-netting across Amazonia define the minimum effort to uncover species assemblage structure","authors":"Pilar L. Maia-Braga,&nbsp;Anderson S. Bueno,&nbsp;Richard G. Davies,&nbsp;Marina F. A. Maximiano,&nbsp;Torbjørn Haugaasen,&nbsp;Marina Anciães,&nbsp;John G. Blake,&nbsp;Bette A. Loiselle,&nbsp;Sergio H. Borges,&nbsp;Juliana Menger,&nbsp;Sidnei Dantas,&nbsp;Ramiro D. Melinski,&nbsp;Fernando H. T. de Abreu,&nbsp;Roberta L. Boss,&nbsp;Carlos A. Peres","doi":"10.1111/ibi.70015","DOIUrl":"https://doi.org/10.1111/ibi.70015","url":null,"abstract":"<p>Mist-net sampling comprises a key methodological component of assemblage-wide avifaunal studies, particularly in the understorey of closed-canopy tropical forests. To investigate mist-net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan-Amazon. Using coverage-based rarefaction and extrapolation curves, we propose a minimum sampling effort, standardizing samples by completeness, to obtain a robust representation of local understorey bird assemblages in Amazonian forests. Furthermore, we aimed to assess the variation in capture rates across sampling days and hours, as well as to characterize species assemblages based on their ecological and morphological attributes. The sample coverage for 312 sites varied from 0.46 to 1.0. Sample size (represented by numbers of individuals) varied according to the standardized sample coverage. For sample coverage of 0.9, the sample size ranged from 30 to 271, with an average of 128.7 individuals. Species-rich sites (&gt;60 understorey bird species) required a larger sample size than more depauperate sites to achieve a sample coverage of 0.9. Capture success was greatest on the first day of sampling (44.8% of all individuals and 83.7% of species), and in the morning (70.8% and 96.4%). The archetypal bird sampled by understorey mist-netting in Amazonian forests is a fairly common small-bodied insectivore that occupies only one habitat type and spends most of its time perched above ground on shrubs or saplings. We suggest that a representative minimum sample of understorey birds should include, on average, 129 individuals per sampling unit. However, this threshold can vary according to local species richness, and we propose different sample sizes for different levels of species richness. For ecological studies where abundance data are essential to derive robust diversity estimates, we recommend operating mist-nets from dawn to dusk. Our findings can guide future mist-net surveys of understorey birds, optimizing resource allocation in sampling effort.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"571-587"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.70015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562269","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}
引用次数: 0
Field-based evidence of impaired sperm quality associated with conventional farming in two passerine birds 两种雀形目鸟类精子质量受损与传统养殖有关的实地证据
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-11-21 DOI: 10.1111/ibi.70007
Ségolène Humann-Guilleminot, Audrey Bailly, Karine Monceau, Mélissa Desbonnes, Vincent Bretagnolle, Jérôme Moreau
{"title":"Field-based evidence of impaired sperm quality associated with conventional farming in two passerine birds","authors":"Ségolène Humann-Guilleminot,&nbsp;Audrey Bailly,&nbsp;Karine Monceau,&nbsp;Mélissa Desbonnes,&nbsp;Vincent Bretagnolle,&nbsp;Jérôme Moreau","doi":"10.1111/ibi.70007","DOIUrl":"https://doi.org/10.1111/ibi.70007","url":null,"abstract":"<p>The detrimental effects of conventional farming on bird biodiversity are increasingly documented. Despite this, the specific impacts of both organic and conventional farming practices on bird coloration and sperm quality in natural settings remain unexplored. This study aimed to determine whether these farming practices differentially affect body mass, coloration intensity and sperm quality in passerine birds inhabiting agricultural landscapes. We captured seven passerine species in hedgerows adjacent to fields farmed organically or conventionally, within a 250-m radius representative of their breeding home-ranges. Body mass was measured across all species, and an index of coloration intensity, based on carotenoid (yellow/orange) and melanin (black) pigments, was assessed in four species. Additionally, we evaluated three sperm quality parameters (sperm density, percentage of abnormal sperm and intra-individual variance of sperm morphology) using fresh sperm samples collected from four species in the field. We hypothesized that birds living near conventional fields would exhibit lower body mass due to reduced food availability. Additionally, we predicted that the more favourable conditions associated with organic farming – such as greater food abundance and lower exposure to pollutants – would benefit birds, leading to enhanced coloration and improved sperm quality. Our results did not reveal any differences in body mass or coloration. The absence of observable effects might be due to several factors: methodological limitations, cross-contamination between habitats or insufficient exposure to farming practices that may hide any potential difference between the two habitats, or the intrinsic adaptive strategies of the species. However, subgroup analyses of three and four species revealed a decrease in sperm density and a higher proportion of abnormal spermatozoa in the Common Whitethroat and Common Nightingale living in conventionally farmed areas, respectively. Although our sample size was limited, we believe these findings highlight the potential negative effects of conventional farming on birds.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"504-519"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567513","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}
引用次数: 0
Wing patch size predicts assortative mating but not reproductive outcomes in the Daurian Redstart (Phoenicurus auroreus) 翼斑大小预测达乌尔红雀(Phoenicurus auroreus)的分类交配,但不能预测繁殖结果。
IF 2.1 3区 生物学
Ibis Pub Date : 2026-03-22 Epub Date: 2025-11-14 DOI: 10.1111/ibi.70004
Meijun Liu, Jinggang Zhang, Zixuan Lin, Ruixue Liu, Chenyang Zhao, Wenhong Deng
{"title":"Wing patch size predicts assortative mating but not reproductive outcomes in the Daurian Redstart (Phoenicurus auroreus)","authors":"Meijun Liu,&nbsp;Jinggang Zhang,&nbsp;Zixuan Lin,&nbsp;Ruixue Liu,&nbsp;Chenyang Zhao,&nbsp;Wenhong Deng","doi":"10.1111/ibi.70004","DOIUrl":"https://doi.org/10.1111/ibi.70004","url":null,"abstract":"<p>Assortative mating, where individuals select partners based on phenotypic similarity or dissimilarity, is a common phenomenon in natural populations and plays an essential role in individual reproductive success. Although it has been studied for many years, how assortative mating influences fitness remains unclear. The Daurian Redstart <i>Phoenicurus auroreus</i> is a socially monogamous passerine species that exhibits pronounced sexual size dimorphism (SSD). Although both sexes possess white wing patches, males have significantly larger wing patch sizes (WPS) than females. In this study, based on 5-year data collected from a Redstart population in northeastern China, we aimed to investigate: (1) whether WPS serves as a principal trait of assortative mating in Daurian Redstarts, i.e. whether individuals prefer mates with similar or dissimilar WPS; and (2) whether the SSD of white wing patches in Daurian Redstarts affects their reproductive outcomes. We found a significant positive correlation between WPS among paired Daurian Redstarts, i.e. individuals tend to select mates with WPS similar to their own. However, we found no significant association between WPS and clutch size, brood size or nestling body condition. This suggests that WPS-based assortative mating has no effects on reproductive outcomes in Daurian Redstarts.</p>","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 2","pages":"649-658"},"PeriodicalIF":2.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565858","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}
引用次数: 0
British Ornithologists' Union Records Committee (BOURC): 58th Report (January 2026) 英国鸟类学家联盟记录委员会(BOURC):第58次报告(2026年1月)
IF 2.1 3区 生物学
Ibis Pub Date : 2025-12-11 DOI: 10.1111/ibi.70009
{"title":"British Ornithologists' Union Records Committee (BOURC): 58th Report (January 2026)","authors":"","doi":"10.1111/ibi.70009","DOIUrl":"https://doi.org/10.1111/ibi.70009","url":null,"abstract":"&lt;p&gt;This report covers the period October 2024 to September 2025. The 57th Report appeared in &lt;i&gt;Ibis&lt;/i&gt; 167: 312–323.&lt;/p&gt;&lt;p&gt;The following changes have been made to the British List.&lt;/p&gt;&lt;p&gt;The following has been considered as the first record of this species and has been added to Category E:&lt;/p&gt;&lt;p&gt;Following a review and consultation by BOURC, the BOU adopted the taxonomy of the International Ornithological Congress (IOC) World Bird List from 1 January 2018, including for the British List (&lt;i&gt;Ibis&lt;/i&gt; 159: 928). The initial decision to follow IOC was based significantly on the emerging collaboration between IOC World Bird List and eBird/Clements to harmonize global avian taxonomies. Seven years later and a unified global avian taxonomy – AviList – was published in June 2025, the product of collaboration between teams from BirdLife International, the IOC World Bird List, the eBird/Clements Checklist, American Ornithological Society North American Classification Committee (AOS-NACC) and South American Classification Committee (SACC) as well as the Working Group on Avian Nomenclature (WGAC)'s own experts. Following this work, the IOC World Bird List will be discontinuing its independent taxonomic efforts. The BOU now follows AviList taxonomy and this change has implications for the British List.&lt;/p&gt;&lt;p&gt;The linear sequence of orders is revised:&lt;/p&gt;&lt;p&gt;Anseriformes&lt;/p&gt;&lt;p&gt;Galliformes&lt;/p&gt;&lt;p&gt;Podicipediformes&lt;/p&gt;&lt;p&gt;Otidiformes&lt;/p&gt;&lt;p&gt;Cuculiformes&lt;/p&gt;&lt;p&gt;Pterocliformes&lt;/p&gt;&lt;p&gt;Columbiformes&lt;/p&gt;&lt;p&gt;Gruiformes&lt;/p&gt;&lt;p&gt;Charadriiformes&lt;/p&gt;&lt;p&gt;Phaethontiformes&lt;/p&gt;&lt;p&gt;Gaviiformes&lt;/p&gt;&lt;p&gt;Procellariiformes&lt;/p&gt;&lt;p&gt;Ciconiiformes&lt;/p&gt;&lt;p&gt;Suliformes&lt;/p&gt;&lt;p&gt;Pelecaniformes&lt;/p&gt;&lt;p&gt;Caprimulgiformes&lt;/p&gt;&lt;p&gt;Apodiformes&lt;/p&gt;&lt;p&gt;Strigiformes&lt;/p&gt;&lt;p&gt;Accipitriformes&lt;/p&gt;&lt;p&gt;Bucerotiformes&lt;/p&gt;&lt;p&gt;Coraciiformes&lt;/p&gt;&lt;p&gt;Piciformes&lt;/p&gt;&lt;p&gt;Falconiformes&lt;/p&gt;&lt;p&gt;Psittaciformes&lt;/p&gt;&lt;p&gt;Passeriformes&lt;/p&gt;&lt;p&gt;The linear sequence of families is revised:&lt;/p&gt;&lt;p&gt;Anatidae&lt;/p&gt;&lt;p&gt;Phasianidae&lt;/p&gt;&lt;p&gt;Podicipedidae&lt;/p&gt;&lt;p&gt;Otididae&lt;/p&gt;&lt;p&gt;Cuculidae&lt;/p&gt;&lt;p&gt;Pteroclidae&lt;/p&gt;&lt;p&gt;Columbidae&lt;/p&gt;&lt;p&gt;Gruidae&lt;/p&gt;&lt;p&gt;Rallidae&lt;/p&gt;&lt;p&gt;Burhinidae&lt;/p&gt;&lt;p&gt;Recurvirostridae&lt;/p&gt;&lt;p&gt;Haematopodidae&lt;/p&gt;&lt;p&gt;Charadriidae&lt;/p&gt;&lt;p&gt;Scolopacidae&lt;/p&gt;&lt;p&gt;Glareolidae&lt;/p&gt;&lt;p&gt;Stercorariidae&lt;/p&gt;&lt;p&gt;Alcidae&lt;/p&gt;&lt;p&gt;Laridae&lt;/p&gt;&lt;p&gt;Phaethontidae&lt;/p&gt;&lt;p&gt;Gaviidae&lt;/p&gt;&lt;p&gt;Diomedeidae&lt;/p&gt;&lt;p&gt;Oceanitidae&lt;/p&gt;&lt;p&gt;Hydrobatidae&lt;/p&gt;&lt;p&gt;Procellariidae&lt;/p&gt;&lt;p&gt;Ciconiidae&lt;/p&gt;&lt;p&gt;Fregatidae&lt;/p&gt;&lt;p&gt;Sulidae&lt;/p&gt;&lt;p&gt;Phalacrocoracidae&lt;/p&gt;&lt;p&gt;Threskiornithidae&lt;/p&gt;&lt;p&gt;Pelecanidae&lt;/p&gt;&lt;p&gt;Ardeidae&lt;/p&gt;&lt;p&gt;Caprimulgidae&lt;/p&gt;&lt;p&gt;Apodidae&lt;/p&gt;&lt;p&gt;Tytonidae&lt;/p&gt;&lt;p&gt;Strigidae&lt;/p&gt;&lt;p&gt;Pandionidae&lt;/p&gt;&lt;p&gt;Accipitridae&lt;/p&gt;&lt;p&gt;Upupidae&lt;/p&gt;&lt;p&gt;Coraciidae&lt;/p&gt;&lt;p&gt;Meropidae&lt;/p&gt;&lt;p&gt;Alcedinidae&lt;/p&gt;&lt;p&gt;Picidae&lt;/p&gt;&lt;p&gt;Falconidae&lt;/p&gt;&lt;p&gt;Psittaculidae&lt;/p&gt;&lt;p&gt;Tyrannidae&lt;/p&gt;&lt;p&gt;Vireonidae&lt;/p&gt;&lt;p&gt;Oriolidae&lt;/p&gt;&lt;p&gt;Laniidae&lt;/p&gt;&lt;p&gt;Corvidae&lt;/p&gt;&lt;p&gt;Remizidae&lt;/p&gt;&lt;p&gt;Paridae&lt;/p&gt;&lt;p&gt;Panuridae&lt;/p&gt;&lt;p&gt;Alaudidae&lt;/p&gt;&lt;p&gt;Cisticolidae&lt;/p&gt;&lt;p&gt;Acrocephalidae&lt;/p&gt;&lt;p&gt;Locustellidae&lt;/p&gt;&lt;p&gt;Hirundinidae&lt;/p&gt;&lt;p&gt;Aegithalidae&lt;/p&gt;&lt;p&gt;Cettiidae&lt;/p&gt;&lt;p&gt;Phylloscopidae&lt;/p&gt;&lt;p&gt;Sylviidae&lt;/p&gt;&lt;p&gt;Bombycillidae&lt;","PeriodicalId":13254,"journal":{"name":"Ibis","volume":"168 1","pages":"395-410"},"PeriodicalIF":2.1,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145719683","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}
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