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Mostrando ítems 1-10 de 2039
Effects of habitat loss and fragmentation on the abundance and species richness of aphidophagous beetles and aphids in experimental alfalfa landscapes
(Czech Academy of Sciences, 2008)
In agro-ecosystems, habitat loss and fragmentation may alter the assemblage of aphidophagous insects, such as foliarforaging (coccinellids) and ground-foraging predators (carabids), potentially affecting intraguild ...
Short-term effects of habitat fragmentation on the abundance and species richness of beetles in experimental alfalfa microlandscapes
(SOCIEDAD BIOLOGIA CHILE, 2004-09)
Habitat loss and fragmentation are considered as the main causes of biodiversity depression. Habitat loss implies a reduction of suitable habitat for organisms, and habitat fragmentation is a change in the spatial configuration ...
Mechanisms affecting population density in fragmented habitat
(RESILIENCE ALLIANCE, 2005-06)
We conducted a factorial simulation experiment to analyze the relative importance of movement pattern, boundary-crossing probability, and mortality in habitat and matrix on population density, and its dependency on habitat ...
Effects of habitat loss and fragmentation on the abundance and species richness of aphidophagous beetles and aphids in experimental alfalfa landscapes
(CZECH ACAD SCI, INST ENTOMOLOGY, 2008)
In agro-ecosystems, habitat loss and fragmentation may alter the assemblage of aphidophagous insects, Such as foliar-foraging (coccinellids) and ground-foraging predators (carabids), potentially affecting intraguild ...
Species–fragmented area relationship
(Proceedings of the National Academy of Sciences (PNAS), 2013-07-30)
The species–area relationship (SAR) gives a quantitative description of the increasing number of species in a community with increasing area of habitat. In conservation, SARs have been used to predict the number of extinctions ...
Responses of Chilean forest birds to anthropogenic habitat fragmentation across spatial scales
(2009)
Although it is recognized that anthropogenic forest fragmentation affects habitat use by organisms across multiple spatial scales, there is uncertainty about these effects. We used a hierarchical sampling design spanning ...
Habitat fragmentation negatively affects effective gene flow via pollen, and male and female fitness in the dioecious tree, Spondias purpurea (Anacardiaceae)
(2021-03-01)
Habitat fragmentation is recognized as one of main threats to global biodiversity. Habitat fragmentation negatively affects population size and mutualistic interactions that directly impact plant fitness and genetic ...