Results 1 to 10 of about 601,431 (113)

Copépodos (Crustacea) intermareales en islas oceánicas chilenas: un enfoque por modelos nulos y por biogeografía de islas

Latin American Journal of Aquatic Research, 2013
Los copépodos intermareales chilenos han sido un grupo poco estudiado, existiendo reportes aislados para el litoral de Chile central y para territorios insulares.
Patricio De los Ríos-Escalante, Carolina Barrera   +1 more
doaj   +3 more sources

Uso de modelos nulos para el estudio de comunidades de crustáceos zooplanctónicos de aguas continentales chilenas

Cuadernos de investigación UNED, 2013
El zooplancton tiene una importante función en las cadenas tróficas de los ecosistemas lénticos, transfiriendo la energía de los productores primarios fotosintéticos hacia los niveles tróficos superiores.
Patricio De los Ríos-Escalante, Jeanette Jara, Juan Norambuena   +2 more
doaj   +4 more sources

Estrutura de assembléias de Muscidae (Diptera) no Paraná: uma análise por modelos nulos [PDF]

Revista Brasileira de Entomologia, 2006
Community structure is often thought to be determined by interspecific competition. Critics of this idea state that we must first demonstrate structure with null models to test whether structure indeed exists. Here, we use 179 predatory and saprophagic species of flies in the family Muscidae (Diptera) that were captured in Malaise traps in six ...
Rodríguez-Fernández, Jaime Iván, Carvalho, Claudio José Barros de, Moura, Mauricio Oswaldo   +2 more
openaire   +4 more sources

Taxonomic and phylogenetic biases in translocated angiosperm plant species across European countries. [PDF]

Conserv Biol
Abstract Conservation translocations are a well‐known conservation tool used to reverse the effects of local population extinctions and restore ecosystems. Compared with mammals and birds, plants are underrepresented in translocation programs, and little is known about the potential taxonomic and phylogenetic biases of plant translocation efforts.
Soares FC, Mouchet M, Monnet AC, Kjelsberg N, Fernández AG, Robert A, Mihoub JB, Colas B, Sarrazin F.   +8 more
europepmc   +2 more sources

Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect Padrões mundiais de riqueza de espécies de Falconiformes: modelos nulos analíticos, restrições geométricas e o efeito do domínio médio

Brazilian Journal of Biology, 2004
Recently, the hypothesis that the geographic distribution of species could be influenced by the shape of the domain edges, the so-called Mid-Domain Effect (MDE), has been included as one of the five credible hypotheses for explaining spatial gradients in
T. F. L.V. B. Rangel, J. A. F. Diniz-filho   +1 more
doaj   +2 more sources

Modelos nulos en interacciones biológicas, una propuesta: depredación en chirostoma riojai-zooplancton

Ciencia Ergo Sum, 2000
Se muestra una propuesta de construcción rápida y confiable de los modelos, a partir de una prueba de bondad de ajuste y una de "G" con el fin de apreciar diferencias significativas.
Octavio M. Vilchis
doaj   +2 more sources

Caracterización, estructura y reglas de ensamblaje de una comunidad de macroatrópodos asociados a termiteros: una aproximación a partir de modelos nulos

Acta Biológica Colombiana, 2006
Las reglas de ensamblaje de una comunidad especifican patrones de coocurrencia y morfología determinados por la competencia interespecífica.
Felipe Hurtado Ferro, Michael David Medina Martínez, María Argenis Bonilla   +2 more
doaj   +1 more source

An update of the distribution of Boeckella gracilis (Daday, 1902) (Crustacea, Copepoda) in the Araucania region (38°S), Chile, and a null model for understanding its species associations in its habitat Actualización de la distribución de Boeckella gracilis (Daday, 1902) (Crustacea, Copepoda) en la región de la Araucanía (38°S), Chile, y un modelo nulo para comprender sus asociaciones específicas en su habitat

Latin American Journal of Aquatic Research, 2010
The crustacean zooplankton of Chilean inland waters are characterized by abundant calanoid copepods, mainly from the gemís Boeckella. The present study aims to update the distribution of Boeckella gracilis in the inland waters of the Araucania region (38-
Patricio De los Ríos-Escalante, Eriko Carreño, Enrique Hauenstein, Marcela Vega   +3 more
doaj   +1 more source

Describing posterior distributions of variance components: Problems and the use of null distributions to aid interpretation

Methods in Ecology and Evolution, Volume 14, Issue 10, Page 2557-2574, October 2023., 2023
Abstract Assessing the biological relevance of variance components estimated using Markov chain Monte Carlo (MCMC)‐based mixed‐effects models is not straightforward. Variance estimates are constrained to be greater than zero and their posterior distributions are often asymmetric.
Joel L. Pick, Claudia Kasper, Hassen Allegue, Niels J. Dingemanse, Ned A. Dochtermann, Kate L. Laskowski, Marcos R. Lima, Holger Schielzeth, David F. Westneat, Jonathan Wright, Yimen G. Araya‐Ajoy   +10 more
wiley   +1 more source

Exploring the risks and benefits of flexibility in biodiversity offset location in a case study of migratory shorebirds

Conservation Biology, Volume 37, Issue 2, April 2023., 2023
Abstract Biodiversity offsets aim to counterbalance the residual impacts of development on species and ecosystems. Guidance documents explicitly recommend that biodiversity offset actions be located close to the location of impact because of higher potential for similar ecological conditions, but allowing greater spatial flexibility has been proposed ...
Nicole Shumway, Megan I. Saunders, Sam Nicol, Richard A. Fuller, Noam Ben‐Moshe, Takuya Iwamura, Sun W. Kim, Nicholas J. Murray, James E. M. Watson, Martine Maron   +9 more
wiley   +1 more source