Nom du corpus

Corpus Systématique Végétale

Titre du document

Variation in nutria diets in selected freshwater forested wetlands of Louisiana

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Nutria
  • Myocastor coypus
  • microhistological techniques
  • food habits
  • forested wetlands
Nom du fichier dans la ressource
Syst_veg6_v2_022576
Auteur(s)
  • Brian J. Wilsey 1
  • Robert H. Chabreck 1
  • R. Greg Linscombe 2
Affiliation(s)
  • 1) School of Forestry, Wildlife, and Fisheries, Louisiana State University Agricultural Center, 70803, Baton Rouge, LA
  • 2) Louisiana Department of Wildlife and Fisheries, 70560, New Iberia, LA
Résumé

Nutria (Myocastor coypus) diets and food preferences in selected freshwater forested wetlands of Louisiana were determined by microhistological examination of fecal pellets and stomach contents.Lemna minor andSpirodela polyrrhiza (duckweeds) dominated the diet (yearly mean 55.5%) during all seasons on 4 of 6 sites sampled. Nutria also ate substantial amounts of Pontederiaceae (Eichhornia crassipes andPontederia cordata) (9.9%),Alternanthera philoxeroides (8.3%), Poaceae (mostlyPanicum gymnocarpon) (5.1%), and woody tissue (6.8%). Nutria diets varied among seasons, with spring diets containing more Poaceae (P<0.01) and less Pontederiaceae (P<0.01) than during other seasons. Nutria showed seasonal preference forL. minor andS. polyrrhiza (spring and summer), Poaceae (spring),A. philoxeroides (summer and winter), and Cyperaceae (summer and fall). SinceL. minor andS. polyrrhiza dominated nutria diets even when they had relative cover values as low as 16.8%, nutria habitat quality should improve if freshwater forested wetland understories are converted (through natural or anthropogenic forces) to communities dominated by these plant species.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - industries agroalimentaires
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - General Environmental Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Environmental Chemistry
Catégories WoS
  • 1 - science ; 2 - environmental sciences
  • 1 - science ; 2 - ecology
Identifiant ISTEX
344B2C92E1AD1FA461FB543DB635C2C7B9879B1E
Revue

Wetlands

Année de publication
1991
Présence de XML structuré
Non
Score qualité du texte
8.644
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-0GS2ZR9P-6
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