Project Proposal Title: Integrated modeling for Hawaiian Albatross Populations Funding Agency: NOAA- JIMAR
The potential impact of longline fisheries on Albatross populations has been a concern (Croxall, 1998) since Weimerskirch et al. (1997) documented the detrimental effect of long-line fisheries on the population dynamics of the wandering Albatross Diomedea exulans. Accidental by-catch of individuals...
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| Format: | Text |
| Language: | English |
| Published: |
2003
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.7048 http://www.soest.hawaii.edu/PFRP/progress_rpts/lebreton_goodman03.pdf |
| Summary: | The potential impact of longline fisheries on Albatross populations has been a concern (Croxall, 1998) since Weimerskirch et al. (1997) documented the detrimental effect of long-line fisheries on the population dynamics of the wandering Albatross Diomedea exulans. Accidental by-catch of individuals of the three North Pacific albatross species (Phoebastria albatrus, P.immutabilis and P.nigripes) has also raised concerns on the impact of by-catch at the population level in these three species. In particular, Cousins and Cooper (1999) reviewed the available knowledge on population biology of the Black-footed Albatross, to determine if by-catch by longline fisheries was detrimental to the species. Similar concerns exist for Laysan Albatross P.immutabilis. The purpose of the present project is to develop integrated population modeling for Black-footed (Phoebastria nigripes) and Laysan (Phoebastria immutabilis) albatross populations to assess whether past and present levels of by-catch are likely to affect significantly the populations of these species. The first step of the project will review the information existing on demographic parameters, and proceed with further analyses whenever needed. In the second phase, we will develop a Leslie matrix model (Caswell 2001), that will |
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