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Yvan Richard

Doctor of Philosophy, (Ecology)
Study Completed: 2008
College of Sciences

Citation

Thesis Title
Demography and distribution of the North Island robin (Petroica longipes) in a fragmented agricultural landscape of New Zealand

Read article at Massey Research Online: MRO icon

Mr Richard proposed an integrated approach for understanding the effects of habitat fragmentation on species distribution and persistence. He applied this approach to North Island robins in forest remnants in the central North Island. Findings showed that habitat quality was not affected by forest fragmentation. However, the distribution of the robins was strongly affected by isolation of remnants, as dispersal is impeded by gaps in forest cover greater than 150m. With pasture acting as a barrier, robins'' colonisation potential is greatly reduced and this can strongly affect their persistence. This research highlights the need for the consideration of habitat isolation and species dispersal abilities in New Zealand conservation strategies.

Supervisors
Professor Doug Armstrong
Mr R Gibb
Professor H Possingham

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