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Showing 1 to 4 of 4 for “"Census methods"”.

  1. Interaction between anglers and coarse fish populations in two gravel-pit lakes

    … and their angling technique were monitored by census. Environmental factors were recorded on each census occasion and the crustacean zooplankton in lake A assessed in 1975 and 1976. … Recommendations for the management of standing-water coarse fisheries are discussed and the application of …

    london-metro Repository record for Interaction between anglers and coarse fish populations in two gravel-pit lakes (opens in a new tab)

  2. Developing and assessing methods to census and monitor burrow-nesting seabirds in Ireland

    Censusing and monitoring populations are key priorities in conservation. This is particularly challenging for seabirds, where several life history characteristics and the remote nature of breeding colonies of many species make them difficult to study. Burrow-nesting species are the most difficult …

    cork Repository record for Developing and assessing methods to census and monitor burrow-nesting seabirds in Ireland (opens in a new tab)

  3. Monarch Butterfly (Danaus plexippus) Tree Preference and Intersite Movement at California Overwintering Sites

    … along the California coast. Management plans and census methods are both founded on the assumption that individual monarchs arrive at an overwintering site in the fall and stay at that site for the winter. Though populations potentially coalesce en masse from autumnal sites onto climax …

    calpoly Repository record for Monarch Butterfly (Danaus plexippus) Tree Preference and Intersite Movement at California Overwintering Sites (opens in a new tab)