Search Results - "Calenge, C."

Assessing habitat selection using multivariate statistics: Some refinements of the ecological-niche factor analysis by Basille, Mathieu, Calenge, Clément, Marboutin, Éric, Andersen, Reidar, Gaillard, Jean-Michel

“…We propose here some refinements of the ecological-niche factor analysis (ENFA) to describe precisely one organism’s habitat selection. The ENFA is based on…”
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The Factorial Decomposition of the Mahalanobis Distances in Habitat Selection Studies by Calenge, C., Darmon, G., Basille, M., Loison, A., Jullien, J.-M.

“…The Mahalanobis distances have been introduced in habitat selection studies for the estimation of environmental suitability maps (ESMs). The pixels of raster…”
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Climate Predictability and Breeding Phenology in Red Deer: Timing and Synchrony of Rutting and Calving in Norway and France by Loe, L. E., Bonenfant, C., Mysterud, A., J.-M. Gaillard, Langvatn, R., Klein, F., Calenge, C., Ergon, T., Pettorelli, N., Stenseth, N. C.

“…1. Timing and synchrony of reproduction are regarded as crucially important factors for fitness in seasonal environments. Natural selection has probably…”
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Eigenanalysis of selection ratios from animal radio-tracking data by Calenge, C., Dufour, A. B.

“…The development of methods to analyze habitat selection when resources are defined by several categories (e.g., vegetation types) is a topical issue in…”
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Importance of movement constraints in habitat selection studies by Martin, Jodie, Calenge, Clément, Quenette, Pierre-Yves, Allainé, Dominique

“…The aim of this study is to empirically illustrate the importance of taking movement constraints into account when testing for habitat selection with telemetry…”
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K-select analysis: a new method to analyse habitat selection in radio-tracking studies by Calenge, Clément, Dufour, A.B., Maillard, D.

“…Two kinds of wildlife habitat studies can be distinguished in the literature: hindcasting and forecasting studies. Hindcasting studies aim to emphasize among a…”
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Geographical zonation in the Neotropics of tree species characteristic of the Paraguay-Paraná Basin by Spichiger, Rodolphe, Calenge, Clément, Bise, Bastian

“…Aim This paper uses data from the literature (monographs and taxonomic reviews) to investigate the geographical zonation in South America of 32 common tree…”
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Efficiency of spreading maize in the garrigues to reduce wild boar (Sus scrofa) damage to Mediterranean vineyards by Calenge, C., Maillard, D., Fournier, P., Fouque, C.

“…The aim of this work was to assess the efficiency of dissuasive spreading of maize to reduce the level of wild boar damage to vines in a Mediterranean area…”
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The package “adehabitat” for the R software: A tool for the analysis of space and habitat use by animals by Calenge, Clément

“…The practical analysis of space use and habitat selection by animals is often a problem due to the lack of well-designed programs. I present here the…”
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Preliminary observations of elephant (Loxodonta africana, Blumenbach) movements and home range in Zakouma National Park, Chad by Dolmia, N.M, Calenge, C, Maillard, D, Planton, H

“…We used satellite tracking to monitor the movements of three elephants (Loxodonta africana, Blumenbach) in Zakouma National Park (Chad). We studied the…”
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Capitalizing on opportunistic data for monitoring relative abundances of species by Giraud, Christophe, Calenge, Clément, Coron, Camille, Julliard, Romain

“…With the internet, a massive amount of information on species abundance can be collected by citizen science programs. However, these data are often difficult…”
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The Kilometric Index as a monitoring tool for populations of large terrestrial animals: a feasibility test in Zakouma National Park, Chad by Maillard, D., Calenge, C., Jacobs, T., Gaillard, J. M., Merlot, L.

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A general framework for the statistical exploration of the ecological niche by Calenge, Clément, Basille, Mathieu

“…We propose a new statistical framework for the exploratory analysis of the ecological niche, the “General niche-environment system factor analysis” (GNESFA)…”
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Home range size and reproduction of female roe deer re-introduced into a Mediterranean habitat by Maillard, D., Calenge, C., Invernia, N., Gaudin, J. C.

“…From 1995 to 1997, 52 males and 52 females, which had been captured in the Forest ofTrois Fontaines (Northeast of France), were re-introduced into thePetit…”
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exploratory analysis of autocorrelation in animal-movement studies by Dray, Stéphane, Royer-Carenzi, Manuela, Calenge, Clément

“…Studies of animal movements have been popularized for many large and shy species by the increasing use of radio telemetry methods (VHF and GPS technologies)…”
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Spatial avoidance of invading pastoral cattle by wild ungulates: insights from using point process statistics by Hibert, Fabrice, Calenge, Clément, Fritz, Hervé, Maillard, Daniel, Bouché, Philippe, Ipavec, Audrey, Convers, Arnaud, Ombredane, Dominique, de Visscher, Marie-Noël

“…Traditional rangelands in many developing countries are currently being encroached by cultivation, driving some herders to illegally use protected areas for…”
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Studying spatial interactions between sympatric populations of large herbivores: a null model approach by Richard, Emmanuelle, Calenge, Clément, Saïd, Sonia, Hamann, Jean-Luc, Gaillard, Jean-Michel

“…Sympatric populations of species with similar ecology are limited by competition for available resources. While quantifying niche overlap between species in…”
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Efficiency of spreading maize in the garrigues to reduce wild boar damage to Mediterranean vineyard by Calenge, C., Maillard, D., Fournier, P., Fouque, C.

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Elephant damage to trees of wooded savanna in Zakouma National Park, Chad by Calenge, Clement, Maillard, Daniel, Gaillard, Jean-Michel, Merlot, Leon, Peltier, Regis

“…Damage caused by elephants was monitored in two woodland stands of Zakouma National Park (Chad) between February and March 1998. The Acacia seyal savanna was…”
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Elephant damage to trees of wooded savannah in Zakouma National Park Chad by Calenge, C., Maillard, D., Gaillard, J.-M., Jacobs, T., Merlot, L., Peltier, R.

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