Intégration de fonctions topologiques du paysage dans le calcul des distances-coût
Distance is a basic concept in the issue of animal species motion. Cost distances are seeing increasing use, to measure a realistic distance, by means of resistance values given for each landscape types. Here, we propose a method to compute resistance values by using “topological functions of landsc...
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Unité Mixte de Recherche 8504 Géographie-cités
2007-07-01
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Online Access: | http://journals.openedition.org/cybergeo/9262 |
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doaj-86f5d3c1fd3945fbbf0bda308e1225d62020-11-25T01:33:15ZdeuUnité Mixte de Recherche 8504 Géographie-citésCybergeo1278-33662007-07-0110.4000/cybergeo.9262Intégration de fonctions topologiques du paysage dans le calcul des distances-coûtJean-Christophe FoltêteKarine BerthierJean-François CossonDistance is a basic concept in the issue of animal species motion. Cost distances are seeing increasing use, to measure a realistic distance, by means of resistance values given for each landscape types. Here, we propose a method to compute resistance values by using “topological functions of landscape”, i.e. by taking account of proximity to habitat/ non-habitat edges. We used a data set concerning the spreading of the fossorial water vole outbreak in the Franche-Comté region, and we tested several functions. The results show that statistical correlations clearly increase in comparison with usual cost-distances.http://journals.openedition.org/cybergeo/9262cost distanceedgehabitatresistancespreadwater vole |
collection |
DOAJ |
language |
deu |
format |
Article |
sources |
DOAJ |
author |
Jean-Christophe Foltête Karine Berthier Jean-François Cosson |
spellingShingle |
Jean-Christophe Foltête Karine Berthier Jean-François Cosson Intégration de fonctions topologiques du paysage dans le calcul des distances-coût Cybergeo cost distance edge habitat resistance spread water vole |
author_facet |
Jean-Christophe Foltête Karine Berthier Jean-François Cosson |
author_sort |
Jean-Christophe Foltête |
title |
Intégration de fonctions topologiques du paysage dans le calcul des distances-coût |
title_short |
Intégration de fonctions topologiques du paysage dans le calcul des distances-coût |
title_full |
Intégration de fonctions topologiques du paysage dans le calcul des distances-coût |
title_fullStr |
Intégration de fonctions topologiques du paysage dans le calcul des distances-coût |
title_full_unstemmed |
Intégration de fonctions topologiques du paysage dans le calcul des distances-coût |
title_sort |
intégration de fonctions topologiques du paysage dans le calcul des distances-coût |
publisher |
Unité Mixte de Recherche 8504 Géographie-cités |
series |
Cybergeo |
issn |
1278-3366 |
publishDate |
2007-07-01 |
description |
Distance is a basic concept in the issue of animal species motion. Cost distances are seeing increasing use, to measure a realistic distance, by means of resistance values given for each landscape types. Here, we propose a method to compute resistance values by using “topological functions of landscape”, i.e. by taking account of proximity to habitat/ non-habitat edges. We used a data set concerning the spreading of the fossorial water vole outbreak in the Franche-Comté region, and we tested several functions. The results show that statistical correlations clearly increase in comparison with usual cost-distances. |
topic |
cost distance edge habitat resistance spread water vole |
url |
http://journals.openedition.org/cybergeo/9262 |
work_keys_str_mv |
AT jeanchristophefoltete integrationdefonctionstopologiquesdupaysagedanslecalculdesdistancescout AT karineberthier integrationdefonctionstopologiquesdupaysagedanslecalculdesdistancescout AT jeanfrancoiscosson integrationdefonctionstopologiquesdupaysagedanslecalculdesdistancescout |
_version_ |
1725078468935286784 |