Results 211 to 220 of about 27,877 (260)
Some of the next articles are maybe not open access.
Diverse and Contrasting Effects of Habitat Fragmentation
Science, 1992Different components of an ecosystem can respond in very different ways to habitat fragmentation. An archipelago of patches, representing different levels of fragmentation, was arrayed within a successional field and studied over a period of 6 years.
G R, Robinson +6 more
openaire +2 more sources
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).
openaire +1 more source
Hyperdynamism in fragmented habitats
Journal of Vegetation Science, 2002Abstract. Are the dynamics of most ecological processes fundamentally increased in frequency or magnitude in fragmented habitats? Hyperdynamism could alter a wide range of population, community, and landscape phenomena, and appears to be evident in fragmented tropical, temperate, and boreal communities. I suggest some potential causes and consequences
openaire +1 more source
The consequences of habitat fragmentation on disease propagation
International Journal of Computer Mathematics, 2013In this paper, we present and analyse a simple model for disease transmission in a population that can freely move among two different geographical locations. In contrast to some recent contributions in the literature that focus on the epidemiological aspects of disease eradication [L.J.S. Allen, B.M. Bolker, Y. Lou, and A.L. Nevai, Asymptotic profiles
Marika Barengo +2 more
openaire +1 more source
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
openaire +3 more sources
Animal Conservation, 2007
AbstractOrganisms often face a higher risk of local extinction in fragmented than in continuous habitat. However, whether populations are affected by reduced size and connectivity of the habitat or by changes in habitat quality in fragmented landscapes remains poorly investigated.
T. Santos +4 more
openaire +1 more source
AbstractOrganisms often face a higher risk of local extinction in fragmented than in continuous habitat. However, whether populations are affected by reduced size and connectivity of the habitat or by changes in habitat quality in fragmented landscapes remains poorly investigated.
T. Santos +4 more
openaire +1 more source
Stream habitat fragmentation ? a threat to biodiversity
Biodiversity and Conservation, 1992Biodiversity is undisturbed rhithral streams in central Europe is high, with about 1000 resident metazoan species; over 600 insect species occur in the Fulda river (Germany). Longitudinal downstream shift of dominance from rheobiontic to rheophilous and finally to ubiquituos rheoxenic taxa in the potamal is described.
openaire +2 more sources
Pollinators and the habitat fragmentation puzzle
Nature Ecology & Evolution, 2023Pavel Dodonov, Eliana Cazetta
openaire +2 more sources
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
openaire +2 more sources