The status of the dugong, and dugong hunting in Australian waters: A survey of local perceptions
| Autor: | Paul K. Anderson, GE Heinsohn |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
education.field_of_study
Aerial survey Dugong biology Range (biology) Ecology business.industry Population Distribution (economics) biology.organism_classification Predation Fishery Geography Abundance (ecology) Netting education business Ecology Evolution Behavior and Systematics Nature and Landscape Conservation |
| Zdroj: | Biological Conservation. 13:13-26 |
| ISSN: | 0006-3207 |
| DOI: | 10.1016/0006-3207(78)90015-0 |
| Popis: | Local opinions as to dugong abundance, population trends, behaviour and ecology, along with the distribution and intensity of human utilisation, were assessed throughout the range of the species in Australia by means of two questionnaires. Dugong populations are thought to be stable. Hunting appears to be intensive only in a few localities and to be generally decreasing. No clear picture emerged as to predation or other sources of natural mortality. The threat from netting operations appears to be largely limited to the more populated parts of the Queensland coast. Estimates of herd size tended to be low as judged against aerial survey observations. Comments on reproduction and presence of calves are compatible with an hypothesis of year-round breeding. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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