{"title":"中庇里牛斯山四尾黄颡鱼种群数量的下降","authors":"J. Gil, M. A. Gómez-Serrano, P. López‐López","doi":"10.13157/arla.67.2.2020.ra4","DOIUrl":null,"url":null,"abstract":"Summary. Long-term monitoring of endangered birds is essential to estimate population trends and to identify potential causes of population decline. This is particularly important for alpine birds inhabiting mountain areas at the boundaries of their range. Here we analyse the population trend of Capercaillie in the Spanish Central Pyrenees based on annual surveys carried out between 2000 and 2017. We found a significant population decline (around 58%) in the number of birds counted in leks. Most capercaillies inhabit coniferous forests of Black Pine with abundant Bilberry and Rhododendron understorey. The number of males declined at lower altitudes and in more exposed orientations, in a scenario consistent with the differential rate of loss of habitat quality due to climate change. We hypothesised that one of the main causes of the Capercaillie decline could be low breeding success (average annual productivity 0.67 chicks per female). In light of the decline rates observed, the Pyrenean population should be relisted as endangered in the Spanish National Catalogue of Endangered Species. Affording a higher degree of protection should guarantee the adoption of management measures to reverse or slow down the general trend of decline of the species in the south of its range.—Gil, J.A., Gómez-Serrano, M.Á. & López-López, P. (2020). Population decline of the Capercaillie Tetrao urogallus aquitanicus in the Central Pyrenees. Ardeola, 67: 285-306.","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":"1 1","pages":"285 - 306"},"PeriodicalIF":1.4000,"publicationDate":"2020-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Population Decline of the Capercaillie Tetrao urogallus aquitanicus in the Central Pyrenees\",\"authors\":\"J. Gil, M. A. Gómez-Serrano, P. López‐López\",\"doi\":\"10.13157/arla.67.2.2020.ra4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Summary. Long-term monitoring of endangered birds is essential to estimate population trends and to identify potential causes of population decline. This is particularly important for alpine birds inhabiting mountain areas at the boundaries of their range. Here we analyse the population trend of Capercaillie in the Spanish Central Pyrenees based on annual surveys carried out between 2000 and 2017. We found a significant population decline (around 58%) in the number of birds counted in leks. Most capercaillies inhabit coniferous forests of Black Pine with abundant Bilberry and Rhododendron understorey. The number of males declined at lower altitudes and in more exposed orientations, in a scenario consistent with the differential rate of loss of habitat quality due to climate change. We hypothesised that one of the main causes of the Capercaillie decline could be low breeding success (average annual productivity 0.67 chicks per female). In light of the decline rates observed, the Pyrenean population should be relisted as endangered in the Spanish National Catalogue of Endangered Species. Affording a higher degree of protection should guarantee the adoption of management measures to reverse or slow down the general trend of decline of the species in the south of its range.—Gil, J.A., Gómez-Serrano, M.Á. & López-López, P. (2020). Population decline of the Capercaillie Tetrao urogallus aquitanicus in the Central Pyrenees. Ardeola, 67: 285-306.\",\"PeriodicalId\":55571,\"journal\":{\"name\":\"Ardeola-International Journal of Ornithology\",\"volume\":\"1 1\",\"pages\":\"285 - 306\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2020-04-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ardeola-International Journal of Ornithology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.13157/arla.67.2.2020.ra4\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ORNITHOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ardeola-International Journal of Ornithology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.13157/arla.67.2.2020.ra4","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ORNITHOLOGY","Score":null,"Total":0}
Population Decline of the Capercaillie Tetrao urogallus aquitanicus in the Central Pyrenees
Summary. Long-term monitoring of endangered birds is essential to estimate population trends and to identify potential causes of population decline. This is particularly important for alpine birds inhabiting mountain areas at the boundaries of their range. Here we analyse the population trend of Capercaillie in the Spanish Central Pyrenees based on annual surveys carried out between 2000 and 2017. We found a significant population decline (around 58%) in the number of birds counted in leks. Most capercaillies inhabit coniferous forests of Black Pine with abundant Bilberry and Rhododendron understorey. The number of males declined at lower altitudes and in more exposed orientations, in a scenario consistent with the differential rate of loss of habitat quality due to climate change. We hypothesised that one of the main causes of the Capercaillie decline could be low breeding success (average annual productivity 0.67 chicks per female). In light of the decline rates observed, the Pyrenean population should be relisted as endangered in the Spanish National Catalogue of Endangered Species. Affording a higher degree of protection should guarantee the adoption of management measures to reverse or slow down the general trend of decline of the species in the south of its range.—Gil, J.A., Gómez-Serrano, M.Á. & López-López, P. (2020). Population decline of the Capercaillie Tetrao urogallus aquitanicus in the Central Pyrenees. Ardeola, 67: 285-306.
期刊介绍:
Ardeola: International Journal of Ornithology is the scientific journal of SEO/BirdLife, the Spanish Ornithological Society. The journal had a regional focus when it was first published, in 1954. Since then, and particular during the past two decades, the journal has expanded its thematic and geographical scope. It is now a fully international forum for research on all aspects of ornithology. We thus welcome studies within the fields of basic biology, ecology, behaviour, conservation and biogeography, especially those arising from hypothesis-based research. Although we have a long publication history of Mediterranean and Neotropical studies, we accept papers on investigations worldwide.
Each volume of Ardeola has two parts, published annually in January and July. The main body of each issue comprises full-length original articles (Papersand Review articles) and shorter notes on methodology or stimulating findings (Short Communications). The publication language is English, with summaries, figure legends and table captions also in Spanish. Ardeolaalso publishes critical Book Reviewsand PhD-Dissertation Summaries; summarising ornithological theses defended in Spain. Finally there are two Spanish-language sections, Ornithological News; summarising significant recent observations of birds in Spain, and Observations of Rare Birds in Spain, the annual reports of the Spanish Rarities Committee.