Leukocyte counts in different populations of Antarctic Pygoscelid penguins along the Antarctic Peninsula

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• 作者：Verónica L. D’Amico ; Bertellotti Marcelo ; Jesús Benzal ; Néstor Coria…
• 关键词：Antarctica ; Geographical context ; Leukocyte counts ; Pygoscelid penguins
• 刊名：Polar Biology
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：39
• 期：2
• 页码：199-206
• 全文大小：614 KB
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• 作者单位：Verónica L. D’Amico (1)
  Bertellotti Marcelo (1)
  Jesús Benzal (2)
  Néstor Coria (3)
  Virginia Vidal (4)
  Julia I. Diaz (5)
  Andrés Barbosa (6)
  
  1. Centro Nacional Patagónico, CONICET, Boulevard Brown 2915, 9120, Puerto Madryn, Chubut, Argentina
  2. Departamento de Ecología Funcional y Evolutiva, Estación Experimental de Zonas Áridas, Consejo Superior de Investigaciones Científicas, Carretera de Sacramento s/n, 04120, La Cañada de San Urbano, Almería, Spain
  3. Instituto Antártico Argentino, Cerrito 1248, C1010AAZ, Buenos Aires, Argentina
  4. Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain
  5. Centro de Estudios Parasitológicos y de Vectores (CONICET), Calle 120 s/n, 1900, La Plata, Buenos Aires, Argentina
  6. Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, C/José Gutiérrez Abascal 2, 28006, Madrid, Spain
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Ecology
  Oceanography
  Microbiology
  Plant Sciences
  Zoology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-2056

文摘

The Antarctic Peninsula is one of the areas where the climate is changing at the fastest pace, having several effects on the populations of pygoscelid penguins. Few studies have analysed the variation in immune parameters of antarctic birds in a geographical context; thus, analyses of geographical differences in the immune components of wild pygoscelid penguins are still scarce. Leukocyte counts in birds provide information on their immunity and physiological stress. The objective of this study was to analyse the leukocyte counts in penguins of the genus Pygoscelis (gentoo, Adélie and chinstrap penguins), covering sites along the South Shetland Islands and some islands on the west coast of the Antarctic Peninsula. Our results revealed differences in the number of heterophils and eosinophils and in the heterophil/lymphocyte ratio in the northeastern populations of gentoo and Adélie penguins as compared to the rest of the colonies studied. The results contribute to better understanding of the variations in physiological parameters of penguins related to a geographical context. Keywords Antarctica Geographical context Leukocyte counts Pygoscelid penguins