Genetic Parentage and Local Population Structure in the Socially Monogamous Upland Sandpiper

The condor

Ashley E. Casey¹ 

关键词: Bartramia longicauda;    dispersal;    extra-pair paternity;    genetic structure;    mating systems;    natal philopatry;    shorebirds;    Upland Sandpiper;   

DOI  :  10.1525/cond.2011.100100

学科分类：动物科学

来源: Central Ornithology Publication Office

【 摘 要 】

Abstract. For a single lineage of birds, the diversity of mating systems and parental care among shorebirds (Charadrii) is high, which has made them an important group for investigations of the evolution of social mating systems. From 2003 to 2007, we studied a population of the Upland Sandpiper (Bartramia longicauda) at Konza Prairie Biological Station in northeastern Kansas. Our objectives were to determine the genetic mating system of this socially monogamous shorebird and to determine whether spatial patterns of philopatry and nest placement might affect opportunities for extra-pair mating. We used six microsatellite markers to estimate rates of extra-pair paternity in 58 family groups (107 parents, 184 offspring). We found that 30% of broods contained extra-pair offspring, representing 15% of chicks, the highest rate of extra-pair paternity ever reported in a socially monogamous shorebird. High rates of extra-pair paternity were not due to the degree of relatedness between partners in mated pairs, an...

【 授权许可】

CC BY