Rising CO2 levels and the fecundity of forest trees.

Journal Article

We determined the reproductive response of 19-year-old loblolly pine (Pinus taeda) to 4 years of carbon dioxide (CO2) enrichment (ambient concentration plus 200 microliters per liter) in an intact forest. After 3 years of CO2 fumigation, trees were twice as likely to be reproductively mature and produced three times as many cones and seeds as trees at ambient CO2 concentration. A disproportionate carbon allocation to reproduction under CO2 enrichment results in trees reaching maturity sooner and at a smaller size. This reproductive response to future increases in atmospheric CO2 concentration is expected to change loblolly dispersal and recruitment patterns.

Full Text

Duke Authors

Cited Authors

  • LaDeau, SL; Clark, JS

Published Date

  • April 6, 2001

Published In

Volume / Issue

  • 292 / 5514

Start / End Page

  • 95 - 98

PubMed ID

  • 11292871

International Standard Serial Number (ISSN)

  • 0036-8075

Digital Object Identifier (DOI)

  • 10.1126/science.1057547

Language

  • eng

Conference Location

  • United States