A model linking energetic effects of whale watching to killer whale (Orcinus orca) population dynamics
The Southern Resident population of killer whales (Orcinus orca) has declined from a high of 98 in early 1995 to a low of 78 in 2001 (Bain and Balcomb 1999, Balcomb unpublished data). The causes of the decline are not well understood, but have been reported to be primarily due to a decline in food a...
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| Format: | Text |
| Language: | English |
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2004
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.470.5042 http://www.earthisland.org/immp/orca/docb2.pdf |
| Summary: | The Southern Resident population of killer whales (Orcinus orca) has declined from a high of 98 in early 1995 to a low of 78 in 2001 (Bain and Balcomb 1999, Balcomb unpublished data). The causes of the decline are not well understood, but have been reported to be primarily due to a decline in food availability and exposure to toxic chemicals (Dahlheim et al. 2000). Whale |
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