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Habitat fragmentation alters the properties of a host-parasite network: rodents and their helminths in South-East Asia

Bordes Frédéric, Morand Serge, Pilosof Shai, Claude Julien, Krasnov Boris R., Cosson Jean François, Chaval Yannick, Ribas Alexis, Chaisiri Kittipong, Blasdell Kim R., Herbreteau Vincent, Dupuy Stéphane, Tran Annelise. 2015. Habitat fragmentation alters the properties of a host-parasite network: rodents and their helminths in South-East Asia. Journal of Animal Ecology, 84 (5) : pp. 1253-1263.

Journal article ; Article de revue à facteur d'impact
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Url - jeu de données : https://doi.org/10.5061/dryad.bf63c

Quartile : Outlier, Sujet : ZOOLOGY / Quartile : Q1, Sujet : ECOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Abstract : While the effects of deforestation and habitat fragmentation on parasite prevalence or richness are well investigated, host-parasite networks are still understudied despite their importance in understanding the mechanisms of these major disturbances. Because fragmentation may negatively impact species occupancy, abundance and co-occurrence, we predict a link between spatiotemporal changes in habitat and the architecture of host-parasite networks. For this, we used an extensive data set on 16 rodent species and 29 helminth species from seven localities of South-East Asia. We analysed the effects of rapid deforestation on connectance and modularity of helminth-parasite networks. We estimated both the degree of fragmentation and the rate of deforestation through the development of land uses and their changes through the last 20 to 30 years in order to take into account the dynamics of habitat fragmentation in our statistical analyses. We found that rapid fragmentation does not affect helminth species richness per se but impacts host-parasite interactions as the rodent-helminth network becomes less connected and more modular. Our results suggest that parasite sharing among host species may become more difficult to maintain with the increase of habitat disturbance.

Mots-clés Agrovoc : Rongeur, Helminthe, Relation hôte parasite, habitat, Couverture végétale, Déboisement, Facteur du milieu, Parasitisme, Mus, Rattus

Mots-clés géographiques Agrovoc : Asie du Sud-Est, Thaïlande, Cambodge, République démocratique populaire lao

Mots-clés complémentaires : Déforestation

Classification Agris : L20 - Animal ecology
F40 - Plant ecology
P01 - Nature conservation and land resources
K01 - Forestry - General aspects
L72 - Pests of animals

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

  • Bordes Frédéric, UM2 (FRA)
  • Morand Serge, CIRAD-ES-UPR AGIRs (LAO) ORCID: 0000-0003-3986-7659
  • Pilosof Shai, Ben-Gurion University of the Negev (ISR)
  • Claude Julien, ISEM (FRA)
  • Krasnov Boris R., Ben-Gurion University of the Negev (ISR)
  • Cosson Jean François, INRA (FRA)
  • Chaval Yannick, INRA (FRA)
  • Ribas Alexis, Udon Thani Rajabhat University (THA)
  • Chaisiri Kittipong, Mahidol University (THA)
  • Blasdell Kim R., CSIRO (AUS)
  • Herbreteau Vincent, IRD (FRA)
  • Dupuy Stéphane, CIRAD-ES-UMR TETIS (FRA) ORCID: 0000-0002-9710-5364
  • Tran Annelise, CIRAD-ES-UPR AGIRs (FRA) ORCID: 0000-0001-5463-332X

Source : Cirad - Agritrop (https://agritrop.cirad.fr/575987/)

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