Range contraction and extinction vulnerability: what is natural?
نویسندگان
چکیده
منابع مشابه
Range contraction enables harvesting to extinction.
Economic incentives to harvest a species usually diminish as its abundance declines, because harvest costs increase. This prevents harvesting to extinction. A known exception can occur if consumer demand causes a declining species' harvest price to rise faster than costs. This threat may affect rare and valuable species, such as large land mammals, sturgeons, and bluefin tunas. We analyze a sim...
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ژورنال
عنوان ژورنال: Memoirs of the Museum of Victoria
سال: 1997
ISSN: 0814-1827
DOI: 10.24199/j.mmv.1997.56.31