Wood distribution in neotropical forested headwater streams of La Selva, Costa Rica

Auteur(s) et Affiliation(s)

CADOL, D.

Dep. of Geosciences, Colorado State Univ., Fort Collins, Etats-Unis

WOHL, E.

Dep. of Geosciences, Colorado State Univ., Fort Collins, Etats-Unis

GOODE, J.R.

Dep. of Geosciences, Colorado State Univ., Fort Collins, Etats-Unis

JAEGER, K.L.

Dep. of Geosciences, Colorado State Univ., Fort Collins, Etats-Unis

Description :
The aim of this study is to use data data on wood loads from headwater streams in La Selva Biological Station in north-eastern Costa Rica to examine potential differences in wood dynamics between temperate and tropical headwater streams. The variables wood diameter/flow depth, stream power, the presence of backflooding, and channel width/depth are consistently selected as significant predictors by statistical models for wood load. The results along with the spatial distribution of wood with respect to the thalweg, suggest that transport processes exert a greater influence on wood loads than recruitment processes.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2009, vol. 34, n°. 9, p. 1198-1215, nombre de pages : 18, Références bibliographiques : 2,5 p.

Date :
2009

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais