Results 21 to 30 of about 59,000,017 (147)
Modeling the herd prey response to individualistic predators attacks
In this paper, we consider predators hunting on prey gathered in groups and in such way exhibiting the possibility of reducing the predators pressure. To model this feature, however, we depart from the Holling type II (HTII) response function, in that we assume that a sufficiently large set of prey could respond to individualistic attacks and therefore
Francesca Acotto, Ezio Venturino
wiley +1 more source
Abstract Agriculture needs to develop novel strategies and practices to meet the increasing global food demand, in an ecological and economical sustainable framework. The plant‐associated microbiota is gaining increasing attention as part of these strategies since it strongly contributes to plant health, nutrition, and resilience to environmental ...
Camilla Fagorzi +4 more
wiley +1 more source
When are bacteria really gazelles? Comparing patchy ecologies with dimensionless numbers
From micro to planetary scales, patchiness is ubiquitous in ecosystems, but it is not always clear when it must be modelled explicitly or if there are general dynamics underlying the innumerable ecological interactions occurring in patchy environments. To address these questions, we applied a conceptual framework based on dimensional analysis (Grünbaum,
Samuel S. Urmy +7 more
wiley +1 more source
Diante da expressiva presença de um público de trabalhadores cada vez mais conectados com a internet e tecnologias de entretenimento, a aplicação da prospecção tecnológica na busca de mapear tendências de gamificação do seguimento da segurança no trabalho vem se tornando uma excelente estratégia de mercado para potencializar a capacidade de avaliação ...
Francisco Junior Nascimento Da Silva +3 more
openaire +1 more source
A Lei de Lotka na bibliometria brasileira [PDF]
Usando os dados reportados em artigos publicados em revistas brasileiras e trabalhos apresentados em congressos nacionais, replicaram-se as aplicações da Lei de Lotka à literatura brasileira em 10 campos diferentes. Utilizou-se o modelo do poder inverso pelos métodos do mínimo quadrado e probabilidade máxima.
openaire +3 more sources
Population dynamical behavior of Lotka-Volterra system under regime switching [PDF]
In this paper, we investigate a Lotka-Volterra system under regime switching dx(t) = diag(x1(t); : : : ; xn(t))[(b(r(t)) + A(r(t))x(t))dt + (r(t))dB(t)]; where B(t) is a standard Brownian motion.
Li, Xiaoyue +4 more
core +3 more sources
Phenotypic evolution in sympatric species can be strongly impacted by species interactions, either mutualistic or antagonistic. Heterospecific reproductive behaviours between sympatric species have been shown to favour phenotypic divergence of traits used as sexual cues. Those traits may also be involved in local adaptation or in other types of species
Grégoire Boussens‐Dumon +1 more
wiley +1 more source
The relation between a 2D Lotka-Volterra equation and a 2D Toda lattice [PDF]
It is shown that the 2-discrete dimensional Lotka-Volterra lattice, the two dmensional Toda lattice equation and the recent 2-discrete dimensional Toda lattice equation of Santini et al can be obtained from a 2-discrete 2-continuous dimensional Lotka ...
Gilson, C.R. +3 more
core +1 more source
Biodiversity as insurance: from concept to measurement and application
ABSTRACT Biological insurance theory predicts that, in a variable environment, aggregate ecosystem properties will vary less in more diverse communities because declines in the performance or abundance of some species or phenotypes will be offset, at least partly, by smoother declines or increases in others.
Michel Loreau +12 more
wiley +1 more source
Crescimento da literatura e dos autores sobre a Lei de Lotka [PDF]
Analisa o crescimento da literatura produzida sobre a Lei de Lotka, assim como o crescimento dos autores produtores dessa literatura, de 1922 a 2003. Nesse período o crescimento da literatura segue o modelo exponencial, com taxa média de crescimento de 7,5% ao ano e taxa de duplicação a cada 9,6 anos. Também o número de autores produtores da literatura
openaire +3 more sources

