Spatial variation in adult sex ratio across multiple scales in the invasive golden apple snail, Pomacea canaliculata.

ABSTRACT: Adult sex ratio (ASR) has critical effects on behavior and life history and has implications for population demography, including the invasiveness of introduced species. ASR exhibits immense variation in nature, yet the scale dependence of this variation is rarely analyzed. In this study, using the generalized multilevel models, we investigated the variation in ASR across multiple nested spatial scales and analyzed the underlying causes for an invasive species, the golden apple snail Pomacea canaliculata. We partitioned the variance in ASR to describe the variations at different scales and then included the explanatory variables at the individual and group levels to analyze the potential causes driving the variation in ASR. We firstly determined there is a significant female-biased ASR for

SUBMITTER: Xu M 

PROVIDER: S-EPMC4782258 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature