The Interplay Between Local and Global Dynamics in Meta Populations of Social Spiders-Ecuador

社会蜘蛛元种群的局部和全局动态的相互作用[j]种群通常被细分为或多或少离散的单位，这些单位与迁移、灭绝和重新定居有关。当这种超人口结构存在时，当地人口在遗传或人口特征方面可能处于不平衡状态，而总体人口可能是稳定的。社会性蜘蛛代表了一个理想的元种群系统，在这个系统中可以研究元种群中局部和全局过程之间的相互作用。受这些生物的生物学启发，计算机模拟模型将被开发：(1)探索灭绝和再定居相互平衡以允许超种群持续存在的条件；(2)探索影响当地种群动态并可能受到群体和个体选择影响的特征的进化，如卵数和性别比。本研究将生态学和进化领域结合在一起，探讨两个潜在的争议问题：混沌种群动态的进化和群体选择在元种群生活史特征进化中可能发挥的作用。这些问题在生态学和进化中具有广泛的意义，并与在破碎景观中保护物种有关。

Aviles, L. - DEB 9815938The Interplay Between Local and Global Dynamics in Metapopulations of Social SpidersABSTRACTPopulations are often subdivided in more or less discrete units linked by migration, extinction, and recolonization. When such a metapopulation structure is present, local populations may be in disequilibrium with respect to genetic or demographic traits, while the ensemble of populations may be stable. Social spiders represent an ideal metapopulation system in which to study the interplay between local and global processes in a metapopulation. Inspired by the biology of these organisms, computer simulation models will be developed to (1) explore the conditions under which extinction and recolonization may balance each other to allow the persistence of a metapopulation, and (2) explore the evolution of traits, such as clutch size and sex ratio, that affect local population dynamics and may be subject to selection at the group and individual level. This study brings together the fields of ecology and evolution to explore two potentially controversial issues: the evolution of chaotic population dynamics and the role that group selection may play in the evolution of life history traits in metapopulations. These are issues of broad significance in ecology and evolution and of relevance to the conservation of species in fragmented landscapes.