Sex and season explain spleen weight variation in the Egyptian mongoose
作者机构：Dartment of Biology Centro de Estudos do Ambiente e do Mar (CESAM) University of Aveiro Campus Universitario de Santiago Aveiro 3810-193 Portugal Departamento de Biologia Geologia Fisica y Qufmica Inorganica Area Biodiversidad y Conservacion Escuela Superior de Ciencias Experimentales y Tecnologia (ESCET) Universidad Rey Juan Carlos c/Tulipan s/n Mostoles Madrid E-28933 Spain Leibniz Institute for Zoo and Wildlife Research Alfred-Kowalke-Straβe 17 Berlin 10315 Germany Instituto de Ciencias Biomedicas Abel Salazar R. Jorge de Viterbo Ferreira 228 Porto 4050-313 Portugal Instituto Nacional de Investigaqao Agraria e Veterinaria (INIAV) IP-National Institute for Agrarian and Veterinary Research Rua dos Lagidos Lugar da Madalena Vairao 4485-655 Portugal cE3c-Centre for Ecology Evolution and Environmental Changes Faculdade de Ciencias Universidade de Lisboa Lisboa 1749-016 Portugal BiolSI-Biosystems & Integrative Sciences Institute Faculdade de Ciencias Universidade de Lisboa Lisboa 1749-016 Portugal Wildlife Ecology & Health group (WE&H) and Servei d'Ecopatologia de Fauna Salvatge (SEFaS) Departament de Medicina i Cirurgia Animals Universitat Autonoma de Barcelona 08193-Bellaterra Barcelona Spain
出 版 物：《Current Zoology》 (动物学报（英文版）)
年 卷 期：2019年第65卷第1期
页 面：11-20页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 09[农学]
基 金：funded by National (through FCT)and European funds (through COMPETE and FEDER, co-funding through the project “Genetic assessment of a successful invasion: Population genetics of the Egyptian mongoose H. ichneumon in Portugal” University of Aveiro (Department of Biology)and FCT/ MEC for the financial support to CESAM Research Unit (UID/AMB/50017)through national funds and, where applicable co-funding by the FEDER within the PT2020 Partnership Agreement the support of the Doctoral Program in Biology and Ecology of Global Changes of University of Aveiro and University of Lisbon. V.B. and J.C supported by FCT doctoral grants
主 题：body condition carnivore Herpestes ichneumon Iberian Peninsula mongoose spleen weight
摘 要：The Egyptia n mon goose (Herpestes ichneumon Linn aeus, 1758) is a medium-sized car nivore that experienced remarkable geographic expansion over the last 3 decades in the Iberian Peninsula. In this study, we investigated the association of species-related and abiotic factors with spleen weight (as a proxy for immunocompete nee) in the species. We assessed the relationship of body con dition, sex, age, seas on, and envir onmental conditi ons with splee n weight established for 508 hunted specimens. Our results indicate that the effects of sex and season outweigh those of all other variables, including body condition. Spleen weight is higher in males than in females, and heavier spleens are more likely to be found in spring, coinciding with the highest period of investment in reproduction due to mating, gestation, birth, and lactation. Coupled with the absence of an effect of body condition, our findi ngs suggest that splee n weight variation in this species is mostly influe need by lifehistory traits linked to reproduction, rather than overall energy availability, winter immunoenhancement, or energy partitioning effects, and prompt further research focusing on this topic.
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