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Amount and spatial distribution of habitats influence occupancy and dispersal of frogs at multiple scales in agricultural landscape
(Wiley-Blackwell, 2020-11-21)
Agriculture changes the aquatic and terrestrial habitats used by animals, affecting their responses to matrix permeability. Here, we evaluated the impacts that resulted from the replacement of native vegetation with pastures ...
Integrating the study of non-native plant invasions across spatial scales
(SPRINGER, 2006-04)
Non-native (alien, exotic) plant invasions are affecting ecological processes and threatening biodiversity worldwide. Patterns of plant invasions, and the ecological processes which generate these patterns, vary across ...
Multiple solutions of boundary value problems on time scales for a φ-Laplacian operator
(AGH University of Science and Technology, 2020-06)
We establish the existence and multiplicity of solutions for some boundary value problems on time scales with a ϕ-Laplacian operator. For this purpose, we employ the concept of lower and upper solutions and the Leray–Schauder ...
A geometric singular perturbation theory approach to constrained differential equations
(2019-04-01)
This paper is concerned with a geometric study of (n−1)-parameter families of constrained differential systems, where n≥ 2. Our main results say that the dynamics of such a family close to the impasse set is equivalent ...
Is bird incidence in Atlantic forest fragments influenced by landscape patterns at multiple scales?
(SPRINGER, 2009)
The degree to which habitat fragmentation affects bird incidence is species specific and may depend on varying spatial scales. Selecting the correct scale of measurement is essential to appropriately assess the effects of ...
Coexistence mechanisms at multiple scales in mosquito assemblages
(BioMed Central, 2014-11-11)
Abstract
Background
Species coexistence in mosquito assemblages may depend on mechanisms related to interspecific resource partitioning occurring at multiple scales. In the ...
Coexistence mechanisms at multiple scales in mosquito assemblages
(2014-11-11)
Abstract
Background
Species coexistence in mosquito assemblages may depend on mechanisms related to interspecific resource partitioning occurring at multiple scales. In the ...
Influence of environmental features at multiple scales and spatial structure on stream fish communities in a tropical agricultural region
(Taylor & Francis Inc, 2017-01-01)
Land cover change for agricultural expansion exerts strong pressures on tropical streams. We examined the relative contributions of catchment land cover, local environmental features, and spatial patterns on stream fish ...
A multiple indicators multiple causes model of late-life depression in Latin American countries
(Elsevier, 2015)
Background: The Euro-D depression scale consists of symptom clusters that may be differentially related to demographic and cognitive characteristics in older adults. This hypothesis needs further investigation and the role ...