文章基本信息

标题：Mortality rates in two populations of the viviparous fish Poeciliopsis baenschi (Teleostei: Poeciliidae)
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作者：Molina-Moctezuma, Alejandro ; Zúñiga-Vega, José Jaime ; Espinosa-Pérez, Héctor Salvador 等
期刊名称：Revista Mexicana de Biodiversidad
印刷版ISSN：1870-3453
出版年度：2013
卷号：84
期号：3
DOI：10.7550/rmb.34869
语种：English
出版社：Instituto de Biología
摘要：Mortality is one of the most important demographic features. Measures of size- or sex-specific mortalitycan help to explain local selective pressures and can also be used to construct demographic models that estimatepopulation trends. This study estimated mortality rates for 2 populations of a viviparous freshwater fish, endemic towestern Mexico (Poeciliopsis baenschi). We found that mortality was size- and sex-dependent and different betweenboth populations. We compared our findings with mortality rates previously estimated for other populations of thisspecies.
关键词：Biología; Ecología; Demografía;capture-mark-recapture; demography; differential mortality; Poeciliidae; survival estimates