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Mostrando ítems 11-20 de 1960
Effective carrying capacity and analytical solution of a particular case of the Richards-like two-species population dynamics model
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
We consider a generalized two-species population dynamic model and analytically solve it for the amensalism and commensalism ecological interactions. These two-species models can be simplified to a one-species model with ...
Ecological singularity of temperate mesopredatory myliobatoid rays (Chondrichthyes: Myliobatiformes)
(Csiro Publishing, 2016-06)
Many myliobatoid rays are important mesopredators, having significant effects on coastal benthic communities. In tropical and subtropical high-diversity oligotrophic ecosystems, they partition their trophic resources, which ...
Ecological optimization of an irreversible Brayton cycle with regeneration, inter-cooling and reheating
(2015)
A mathematical model is developed for an irreversible Brayton cycle with regeneration, inter-cooling and reheating. The irreversibility are from the thermal resistance in the heat exchangers, the pressure drops in pipes, ...
Developing an Agro-Ecological Zoning Model for Tumbleweed (Salsola kali), as Energy Crop in Drylands of Argentina
(Riga Technical University, 2016-12-01)
Salsola kali is considered extremely valuable as an energy crop worldwide because it adapts easily to environments with strong abiotic stresses (hydric, saline and alkaline) and produces large amounts of biomass in drylands. ...
Population dynamics, life stage and ecological modeling in Chrysomya albiceps (Wiedemann) (Diptera: Calliphoridae)
(Entomological Soc Brasil, 2011-03-01)
In this study we investigated the population dynamics of Chrysomya albiceps (Wiedemann) with laboratory experiments, employing survival analysis and stage structure mathematical models, emphasizing survival among life ...
Additions of landscape metrics improve predictions of occurrence of species distribution models
(2017-09-01)
Species distribution models are used to aid our understanding of the processes driving the spatial patterns of species’ habitats. This approach has received criticism, however, largely because it neglects landscape metrics. ...
Comparing machine learning classifiers in potential distribution modelling
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)
Species` potential distribution modelling consists of building a representation of the fundamental ecological requirements of a species from biotic and abiotic conditions where the species is known to occur. Such models ...
Predicting the potential distribution of the alien invasive American bullfrog (Lithobates catesbeianus) in Brazil
(Springer, 2008-06-01)
The non-native invasive anuran Lithobates catesbeianus is presently distributed in Brazil, especially in the Atlantic Rainforest biodiversity hotspot. Here, we use a maximum entropy ecological niche modeling algorithm (i) ...