A quantitative approach to Endangered Species Act classification of long-lived vertebrates: application to the North Pacific humpback whale

Article Abstract:

Issues discussed concern the classification of endangered and threatened animals under the US Endangered Species Act, focusing on the status of the North Pacific humpback whale. Classification based on population size and variability of population growth rates reveal the threshold for downgrading or upgrading a species from the List of Endangered and Threatened Wildlife, and the recommendations for the humpback whale are detailed.

Statistical Data Included, Methods, Identification and classification, Wildlife conservation, Humpback whale

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Optimal schemes to detect the presence of insect species

Article Abstract:

A model that describes the abundance of a single, discrete generation of adult insects is used. Detection schemes have been provided for species whose death rate and variation in emergence time within and between years can at present be characterized only as small, moderate, or large.

Administration of Conservation Programs, Endangered Species, Protection and preservation, Insects

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