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Arisaema siahaense sp. nov. (Araceae) from India
Nordic Journal of Botany, EarlyView.A new species of Arisaema Mart. (Araceae) belonging to sect. Fimbriata is described and illustrated here from the Siaha District, Mizoram, India. This new species is characterized by an evergreen, dioecious herbaceous habit, up to 1.08 m high, having a subglobose tuber, with a solitary trifoliate leaf.
Rabishankar Sengupta +1 more
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Nordic Journal of Botany, EarlyView.Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes +4 more
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International Journal of Osteoarchaeology, EarlyView.ABSTRACT This paper explores the historical ecology and biogeography of two fish species that are currently endangered in the North American Great Lakes region, that were of great importance to the Indigenous people in the region, and that are the focus of ongoing conservation efforts on the part of descendant communities: lake sturgeon (Acipenser ...
Suzanne Needs‐Howarth +4 more
wiley +1 more source
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Habitat fragmentation versus fragmented habitats
Biodiversity and Conservation, 2012Habitats often show similar present structuring, but contrasting histories: habitats occur naturally fragmented due to abiotic or biotic factors over long time periods, but may also have become fragmented only recently through transformation from interconnected to highly fragmented habitats within short time periods. Species and populations being faced
Jan Christian Habel, Frank E. Zachos
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Habitat fragmentation promotes malaria persistence
Journal of Mathematical Biology, 2019Based on a Ross-Macdonald type model with a number of identical patches, we study the role of the movement of humans and/or mosquitoes on the persistence of malaria and many other vector-borne diseases. By using a theorem on line-sum symmetric matrices, we establish an eigenvalue inequality on the product of a class of nonnegative matrices and then ...
Daozhou Gao +2 more
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2013
Soil microarthropods were surveyed for one year in order to see if the theory of island biogeography held true for micro-communities. Soil fauna were collected on a bi-monthly basis at a previously disturbed site in the New Jersey Pine Plains on natural regrowth islands.
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Soil microarthropods were surveyed for one year in order to see if the theory of island biogeography held true for micro-communities. Soil fauna were collected on a bi-monthly basis at a previously disturbed site in the New Jersey Pine Plains on natural regrowth islands.
openaire +1 more source
Species loss after habitat fragmentation
Trends in Ecology & Evolution, 2000Currently, we are losing large areas of natural and seminatural habitats. The big conservation question now is: how far does this habitat loss translate into species loss? Species–area relationships (SAR) describe the increase in the number of species S with increasing area A of a habitat. Generally, SAR obey a power law with an exponent
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Vulnerability to habitat fragmentation
Science, 2019Conservation Ecology Habitat fragmentation caused by human activities has consequences for the distribution and movement of organisms. Betts et al. present a global analysis of how exposure to habitat fragmentation affects the composition of ecological communities (see the Perspective by Hargreaves).
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Habitat Loss, Fragmentation, and Restoration
Restoration Ecology, 1999AbstractThe loss and fragmentation of habitat is a major threat to the continued survival of many species. We argue that, by including spatial processes in restoration management plans, the effects of habitat loss and fragmentation can be offset. Yet few management plans take into account spatial effects of habitat conservation/restoration despite the ...
Gary R. Huxel, Alan Hastings
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