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Governments and conservation groups work to protect birds, either by passing laws that preserve and restore bird habitat or by establishing captive populations for reintroductions. Such projects have produced some successes; one study estimated that conservation efforts saved 16 species of bird that would otherwise have gone extinct between ...
Biodiversity is commonly measured in terms of taxonomic richness of a geographic area over a time interval. In order to calculate biodiversity, species evenness, species richness, and species diversity are to be obtained first. Species evenness[ 181 ] is the relative number of individuals of each species in a given area.
Bird conservation. The extinction of the dusky seaside sparrow was caused by habitat loss. Bird conservation is a field in the science of conservation biology related to threatened birds. Humans have had a profound effect on many bird species. Over one hundred species have gone extinct in historical times, although the most dramatic human ...
Species richness, or biodiversity, increases from the poles to the tropics for a wide variety of terrestrial and marine organisms, often referred to as the latitudinal diversity gradient. [1] The latitudinal diversity gradient is one of the most widely recognized patterns in ecology. [1] It has been observed to varying degrees in Earth's past. [2]
Ornithology is a branch of zoology that concerns the study of birds. [ 1 ] Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. [ 2 ] It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support.
Endemic Bird Areas of the World: Priorities for Biodiversity Conservation Alison J. Stattersfield, Michael J. Crosby, Adrian J. Long and David C. Wege (1998) Birdlife International ISBN 0-946888-33-7; The lists of EBAs above, and all associated data, are sourced from information presented in this work
Storks are large, long-legged, long-necked wading birds with long, stout bills. They belong to the family Ciconiidae, and make up the order Ciconiiformes / sɪˈkoʊni.ɪfɔːrmiːz /. Ciconiiformes previously included a number of other families, such as herons and ibises, but those families have been moved to other orders. [2]
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. [1] Phytogeography is the branch of biogeography that studies the ...