Ecological networks and their fragility
Article Abstract:
Ecological networks display well-defined, similar patterns of organization, and their assembly follows specific rules, with the processes of predation, competition and mutualism constraining them in unique ways. Although theory predicts that complex ecological networks are likely to be fragile, species persist in complex webs when disturbances propagate quickly and apparently strongly, and models incorporating the relationships between link strength, abundance and trophic specialization are likely to provide the reasons.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Relative risk of extinction of passerine birds on continents and islands
Article Abstract:
Many recent species extinctions have occurred on islands rather than on continents, but predictions of major future extinctions stem from the clearing of continental, tropical forests. The majority of threatened species have small geographic ranges. The ranges of the passerine birds of the Americas have been compiled and an unexpected vulnerability of continental species with small ranges was used to produce a map showing where species loss may occur in the long term.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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Extinction by numbers
Article Abstract:
Myers and colleagues have reported an uneven, highly clumped distribution of vulnerable species throughout the world's land surface. They have demonstrated that around 30-50% of plant, amphibian, reptile, mammal and bird species arise in 25 hotspots, individually occupying no more than 2% of ice-free land.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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- Abstracts: Social construction, political power, and the allocation of benefits to endangered species. Public opinion on species and endangered species conservation
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