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- Title
Behaviour during handling predicts male natal dispersal distances in an establishing reintroduced hihi ( Notiomystis cincta) population.
- Authors
Richardson, K. M.; Ewen, J. G.; Brekke, P.; Doerr, L. R.; Parker, K. A.; Armstrong, D. P.
- Abstract
Natal dispersal is a complex behaviour influenced by multiple factors that are often sex-specific and density-dependent. Reintroduced populations are typically low in density in the initial years of establishment; hence, understanding natal dispersal patterns in this context is a critical component of reintroduction biology. Natal dispersal is a key behaviour that influences both the probability of recruitment, and simultaneously dictates the spatial configuration of the reintroduced population as it establishes. Here, we examine natal dispersal in a reintroduced population of an endangered New Zealand forest passerine, the hihi, Notiomystis cincta, in the first 3 years after reintroduction to a large, mature forest reserve. We examined (1) differences between the sexes, and (2) the relationship between temperament and natal dispersal distances (NDD) in locally bred hihi over this time period. We found NDD varied widely in both sexes, with mean NDD significantly higher in males than females. There was a sex-specific effect of temperament, with males that distress-called during handling dispersing further than those that did not. Our results show that while clusters of individuals have established across the reserve due to conspecific attraction, there is movement between these clusters, primarily a consequence of dispersal of males of a distinct temperament. Continuing to monitor natal dispersal patterns as populations establish will provide further insights into the role of dispersal in shaping establishment patterns in reintroduced populations.
- Subjects
STITCHBIRD; NOTIOMYSTIS; BIRD behavior; BEHAVIOR evolution; BIRD conservation; WILDLIFE conservation; BIRD populations; BIRD population estimates; ANIMAL behavior; BIRDS
- Publication
Animal Conservation, 2017, Vol 20, Issue 2, p135
- ISSN
1367-9430
- Publication type
Article
- DOI
10.1111/acv.12296