Infodoc : Sciences, Techniques et Culture

Recherche avancée

A-
A
A+

Accueil

Adresse

Infodoc : Réseau des bibliothèques et centres de documentation d'AgroParisTech

France

contact

Retourner à l'écran de recherche

Array
(
    [TITRE] => <b>Type de document : </b>
    [TITRE_CLEAN] => Type de document
    [OPAC_SHOW] => 1
    [TYPE] => list
    [AFF] => Tir&eacute; &agrave; part
    [ID] => 4
    [NAME] => cp_typdoc
    [DATATYPE] => integer
    [VALUES] => Array
        (
            [0] => 7
        )

)

Reproductive dominance of pasture trees in a fragmented tropical forest mosaic.

Titre :	Reproductive dominance of pasture trees in a fragmented tropical forest mosaic. Ajouter au panier
Est un extrait ou un tiré à part de :	Science
Auteur(s) :	Preston R. Aldrich, Auteur (et co-auteur) J.L. Hamrick, Auteur (et co-auteur)
Type de document :	Tiré à part
Sujets :	Biodiversité ; Génétique
Résumé :	Tropical forest fragmentation threatens biodiversity, yet basic information on population responses for major groups such as plants is lacking. Hypervariable genetic markers were used to reconstruct a population-level pedigree in fragmented tropical forest for the tree Symphonia globulifera. Though seedlings occurred only in remnant forest, the pedigree showed that most seedlings had been produced by sequentially fewer adults in pasture, creating a genetic bottleneck. The pedigree also implicated shifts in the foraging of animals that disperse pollen and seed in a secondary constriction of the bottleneck. These results suggest that tropical conservation strategies should anticipate complex, cryptic responses to fragmentation.
Editeur(s) :	American Association for the Advancement of Science
Date de publication :	1998
Format :	pp. 103-105 / ill., graph., réf.
Note(s) :	Vol.281 - n°5373
Langue(s) :	Anglais
Lien vers la notice :	https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=150183