Food web persistence in fragmented landscapes
نویسندگان
چکیده
منابع مشابه
Population persistence in fragmented landscapes
Many ecologists believe that fragmenting habitats into discontinuous patches disrupts the reproduction, survivorship and movement of animals. It has seldom, however, been possible to measure all these processes in one study. Recent work by Lesley and Michael Brooker on an Australian songbird, the blue-breasted fairy wren Malurus pulcherrimus, has achieved this elusive goal. Their new paper in W...
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Habitat destruction and land use change are making the world in which natural populations live increasingly fragmented, often leading to local extinctions. Although local populations might undergo extinction, a metapopulation may still be viable as long as patches of suitable habitat are connected by dispersal, so that empty patches can be recolonized. Thus far, metapopulations models have eith...
متن کاملPersistence of a population in randomly fragmented landscapes
In a fragmented world, species survival depends on dispersal, as local populations at high risk of extinction could be rescued by immigration from neighboring populations. This intuition forms the core of metapopulation models: even though local populations occupying suitable habitat patches might undergo extinction, persistence can be achieved at the metapopulation level as long as individuals...
متن کاملCompartmentalization increases food-web persistence.
It has recently been noted that empirical food webs are significantly compartmentalized; that is, subsets of species exist that interact more frequently among themselves than with other species in the community. Although the dynamic implications of compartmentalization have been debated for at least four decades, a general answer has remained elusive. Here, we unambiguously demonstrate that com...
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UK forests and woodlands are often of considerable value to biodiversity. There is now a growing need to evaluate the impacts of forest management on biodiversity, in order to maintain and enhance the wildlife value at the landscape scale. The development of biodiversity evaluation tools will enable forest and land managers to make informed choices at this scale in order to provide sustainable ...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2017
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2017.0350