Genetic monogamy in two long-lived New Zealand passerines

Document Type

Article

Publication Date

9-1-2008

Abstract

High rates of extra-pair paternity (EPP) can be relatively common in passerines whereas low rates or absence of EPP are often associated with taxa that are long-lived and exhibit obligatory paternal care. We examined EPP in an under-represented category: passerine species with relatively long life spans (or low annual mortality rates). Specifically, we studied EPP in New Zealand saddlebacks Philesturnus carunculatus and robins Petroica australis, two species with unusually low annual mortality rates (6.5-11% and 10-20% respectively). No EPP (0%) was detected in saddlebacks (39 pairs, 202 offspring) and only one case of EPP (1.9%) was detected in robins (54 pairs, 198 offspring). Genetic monogamy in these passerine species supports the hypothesis that low annual mortality rates play an important role in explaining variation in rates of EPP across species. © 2008 The Authors.

Publication Source (Journal or Book title)

Journal of Avian Biology

First Page

579

Last Page

583

This document is currently not available here.

Share

COinS