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| Roques, L.; Chekroun, M.D.. |
| There is a gap between single-species model predictions, and empirical studies, regarding the effect of habitat fragmentation per se, i.e., a process involving the breaking apart of habitat without loss of habitat. Empirical works indicate that fragmentation can have positive as well as negative effects, whereas, traditionally, single-species models predict a negative effect of fragmentation. Within the class of reaction-diffusion models, studies almost unanimously predict such a detrimental effect. In this paper, considering a single-species reaction-diffusion model with a removal -- or similarly harvesting -- term, in two dimensions, we find both positive and negative effects of fragmentation of the reserves, i.e. the protected regions where no removal... |
| Tipo: Journal Article |
Palavras-chave: MODELISATION; MODELE MATHEMATIQUE; HABITAT; RECOLTE; MODELE SPATIAL; REACTION-DIFFUSION; BIOLOGIE DE LA CONSERVATION; DENSITE DE POPULATION FRAGMENTATION; SINGLE-SPECIES MODEL; HARVESTING; SPATIAL PATTERNS; CONSERVATION BIOLOGY; MODEL. |
| Ano: 2009 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20096947ae43&uri=/notices/prodinra1/2010/02/ |
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