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The potential function of post-fledging dispersal behavior in first breeding territory selection for males of a migratory bird

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Current Zoology 2022年第6期68卷 708-715页

作者： Robert PATCHETT Patrick STYLES Joanna ROBINS KING Alexander NGKIRSCHEL Will CRESSWELL Centre for Biological Diversity University of St AndrewsSt AndrewsKY169THUK Department of Biological Sciences University of CyprusNicosia1678Cyprus

One possible hypothesis for the function of post-fledging dispersal is to locate a suitable future breeding *** post-fledging period may be particularly important in migratory species because they have a limited period to gather information prior to autumn migration,and in protandrous species,males must quickly acquire a territory after returning from spring migration to maximize their *** we use color-ring resightings to investigate how the post-fledging dispersal movements of the Cyprus wheatear Oenanthe cypriaca,a small migratory passerine,relate to their first breeding territory the following year when they return from *** found that males established first breeding territories that were significantly closer to their post-fledging location than to their natal sites or to post-fledging locations of other conspecifics,but these patterns were not apparent in *** findings suggest that familiarity with potential breeding sites may be important for juveniles of migratory species,particularly for the sex that acquires and advertises breeding *** dispersal prior to a migrant’s first autumn migration may contribute toward its breeding success the following year,further highlighting the importance of early seasonal breeding on fitness and population dynamics more generally.

关键词： dispersal migratory bird juvenile territory selection

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ROLE OF DISEASE PROPAGATION IN migratory bird POPULATION

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International Journal of Biomathematics 2012年第3期5卷 19-41页

作者： SHUJING GAO YUMIN DING JIANPING XIE Key Laboratory of Jiangxi Provincefor Numerical Simulation and Emulation Techniques Gannan Normal University Ganzhou 341000 P. R. China

Chatterjee considered a predator prey model with avian migration in the migration prey population IS. Chatterjee, Alternative prey source coupled with prey recovery enhance stability between migratory prey and their predator in the presence of disease, Nonlinear Anal. Real World Appl. 11 （2010） 4415-4430]. In this paper, we modify and analyze the model by taking time dependent parameters and the general flmctional response into consideration. The conditions for the persistence of the system and the extinction of the disease are obtained. The global attractivity of the system is also studied. By numerical simulations, we find that the qualitative behavior of the system independent on the choice of the functional response. Moreover, it is observed that the infection rate, recruitment rate and the predation rate play a vital role in predicting the behavior of the dynamics.

关键词： migratory bird non-autonomous system general functional response persistence.

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Impacts of Ecological Restoration and Human Activities on Habitat of Overwintering migratory birds in the Wetland of Poyang Lake, Jiangxi Province, China

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Journal of Mountain Science 2015年第5期12卷 1302-1314页

作者： SUN Chuan-zhun ZHEN Lin WANG Chao YAN Bang-you CAO Xiao-chang WU Rui-zi Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences Office of the Mountain-River-Lake Development Committee of Jiangxi Province

Increasing human activities have contributed to global climate change, and thus resulted in a downward trend in the number of species and population sizes of migratory birds. This trend is closely related to a reduction in habitat size and lower habitat quality. The Poyang Lake wetland in China constitutes one of Asia's largest overwintering habitats for migratory birds. Over the past 10 years, restoration projects have improved the habitat ecology of these wetlands. In this study, we assessed the changes in habitat quality for overwintering migratory birds from 2000 to 2012 near two villages in the Poyang Lake wetland using the In VEST model. Average habitat quality for migratory birds has been improved by 18.8% and47.7%. Differences in the degrees of habitat improvement can be attributed to differences in the change of habitat size and in the impact of threat sources that resulted from the combined effects of restoration and human activities in these two villages.

关键词： Wetland Ecological restoration INVESTmodel migratory bird Habitat

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Characteristics of cross transmission of gut fungal pathogens between wintering Hooded Cranes and sympatric Domestic Geese

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Avian Research 2023年第4期14卷 640-646页

作者： Yuannuo Wu Xiaoyu Fan Jie Yu Tianci Liu Rong Cui Xingjia Xiang School of Resources and Environmental Engineering Anhui UniversityHefei230601China Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration Hefei230601China International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology Hefei230601China

migratory birds travel long distance and link various *** to habitat degradation,wintering waterfowls forage together with poultry,increasing the risk of pathogen transmission between *** investigated the fungal communities between wintering Hooded Cranes and Domestic Geese by high-throughput sequencing,and inferred the potential gut pathogens for both hosts at different wintering *** fungal community compositions were significantly different between seasons and between the *** negative correlation was found between fungal diversity and pathogenic diversity,with higher fungal diversity and less pathogenic diversity in early stage and less fungal diversity and higher pathogenic diversity in late stage for both *** dissimilarity of pathogenic community compositions decreased from early to late stage,with the quantity of overlapping potential pathogenic OTUs increasing along wintering periods between the two hosts,demonstrating the existence of pathogen cross transmission between the two ***,the transmission pathway of avian pathogens was mainly from Hooded Cranes to Domestic Geese while the transmission direction of human pathogens was primarily from Domestic Geese to wild *** on above results,we argued that pathogen cross transmission and underlying outbreak risk of disease should be closely monitored in migratory birds and domestic poultry.

关键词： Cross transmission Fungi Gut pathogen migratory bird Poultry

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Consideration of climate change impacts will improve the efficiency of protected areas on the Qinghai-Tibet Plateau

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Ecosystem Health and Sustainability 2022年第1期8卷 181-193页

作者： Zijian Lu Liangxu Wang Nan Meng Xuhuan Dai Jingyi Zhu Yanzheng Yang Ruonan Li Jinfeng Ma Hua Zheng State Key Laboratory of Urban and Regional Ecology Research Center for Eco-environmental SciencesChinese Academy of SciencesBeijingChina School of Environmental and Geographical Sciences Shanghai Normal UniversityShanghaiChina College of Resources and Environment University of Chinese Academy of SciencesBeijingChina Institute of International Rivers and Eco-Security Yunnan UniversityKunmingChina

The protection of migratory birds and their habitats is important to the ecological stability of the Qinghai-Tibet Plateau(QTP).Currently protected areas(PAs)were designed in accordance with species distribution patterns under current climatic conditions,thus ignoring climate change will lead to a decrease in the protection efficiency of *** this study,using the flagship species Grus nigricollis,as an example,we used the maximum entropy(MaxEnt)model to simulate the distributions and conservation status of *** and optimized the existing PA *** results showed that(1)suitable habitat-for *** accounts for 12.48%of the QTP area,and the PAs established under current climatic conditions cover 17.84%of this suitable habitat area;(2)future climate changes will influence the distribution and quality of *** habitats,and the average protection efficiency of the current PAs in four climatic scenarios will decrease from 17.84%to 15.31%;and(3)through optimization,the efficiency of existing PAs can be increased by 0.75 times and reach 28.37%,indicating PA planning must consider not only current climate conditions but also the effects of climate *** results aim to address shortcomings in the conservation efficiency of PAs and provide an example for resolving mismatched PA boundaries and habitat changes for species.

关键词： migratory bird protected area climate change grus nigricollis

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