Operational criteria for delimiting species
Article Abstract:
Twelve methods of delimiting species in nature have been reviewed, organized into two general categories of tree- and nontree-based approaches. It is concluded that all methods will sometimes fail to delimit species boundaries properly or will give conflicting results, and that virtually all methods require researchers to make qualitative judgments.
Publication Name: Annual Review of Ecology, Evolution and Systematics
Subject: Environmental issues
ISSN: 1543-592X
Year: 2004
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Landscapes and riverscapes: The influence of land use on stream ecosystems
Article Abstract:
Local habitat and biological diversity of streams and rivers are strongly influenced by landform and land use within the surrounding valley at multiple scales. However, empirical associations between land use and stream response only varyingly succeed in implicating pathways of influence.
Publication Name: Annual Review of Ecology, Evolution and Systematics
Subject: Environmental issues
ISSN: 1543-592X
Year: 2004
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Introduction of non-native oysters: Ecosystem effects and restoration implications
Article Abstract:
A study on the effects on the ecosystem and the restoration implications due to the introduction of non-native oysters is presented. Many characteristics of oysters lead to predictions that they would be successful and high impact members of recipient ecosystems.
Publication Name: Annual Review of Ecology, Evolution and Systematics
Subject: Environmental issues
ISSN: 1543-592X
Year: 2005
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