Effective monitoring for adaptive wildlife management: lessons from the Galapagos Islands

Article Abstract:

Monitoring of wildlife is an important part of wildlife management, in that it helps assess policies and provides data for the formulation of policies. A project on the Galapagos Islands show the need for clear objectives in monitoring, that are lined to the goals of management. There is also a need to bear costs and logistics in mind, while developing indicators using sampling methods that allow unbiased results that are statistically significant. There is also a need for continuity, and for information to reach a wide audience, especially policymakers.

Analysis, Wildlife management, Biological monitoring

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Use of burrow entrances to indicate densities of Towensend's ground squirrels

Article Abstract:

Burrow entrances have been commonly used to estimate the densities of semi-fossorial rodents, which are one of the main food sources for many predators. A study designed to show the effectiveness of the technique in counting densities of Townsend's ground squirrel in the Snake River Birds of Prey National Conservation Area, ID, is presented. It was concluded that the relationship between the number of burrow entrances and the densities of ground squirrels were weak and that the technique could be potentially misleading.

Habitats, Burrowing animals, Ground squirrels

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Diggings as a population index for the eastern barred bandicoot

Article Abstract:

The eastern barred bandicoot is an endangered marsupial of southeastern Australia, whose range is now restricted to a small number of sites. However, in Tasmania the species is still abundant because of the large areas of suitable habitat. An investigation to ascertain the usefulness of bandicoot diggings as an indication of local population numbers concludes that digging counts are an efficient and simple guide to population change.

Observations, Natural history, Tasmania, Marsupialia, Marsupials

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