Genetic consequences of tropical second-growth forest regeneration

U U Sezen; Robin L Chazdon; K E Holsinger

doi:10.1126/science.1105034

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Genetic consequences of tropical second-growth forest regeneration

Journal article

Open access

Peer reviewed

Genetic consequences of tropical second-growth forest regeneration

U U Sezen, Robin L Chazdon and K E Holsinger

Science, Vol.307(5711), p.891

2005

DOI: https://doi.org/10.1126/science.1105034

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Abstract

Secondary forests are more extensive than old-growth forests in many tropical regions, yet the genetic composition of colonizing populations is poorly understood. We analyzed the parentage of a founder population of 130 individuals of the canopy palm Iriartea deltoidea in a 24-year-old second-growth forest in lowland Costa Rica. Among 66 trees in adjacent old-growth forest, only two individuals contributed 56% of the genes in founders. Second-growth trees had lower genetic diversity and larger patches of similar genotypes than old-growth trees. Recovery of genetic diversity of populations in tropical second-growth forests may take many generations and will require continued dispersal from genetically diverse source populations.

Details

Title: Genetic consequences of tropical second-growth forest regeneration
Authors: U U Sezen (Author) - University of Connecticut, United States
Robin L Chazdon (Author) - University of Connecticut, United States
K E Holsinger (Author) - University of Connecticut, United States
Publication details: Science, Vol.307(5711), p.891
Publisher: American Association for the Advancement of Science
Date published: 2005
DOI: 10.1126/science.1105034
ISSN: 0036-8075
Copyright note: Copyright © 2005 The Author. This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science {VOL.307, (2005)}, doi:10.1126/science.1105034
Organisation Unit: Tropical Forests and People Research Centre; University of the Sunshine Coast, Queensland; Forest Research Institute
Language: English
Record Identifier: 99451181902621
Output Type: Journal article

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