Seedling survival and growth of three ectomycorrhizal caesalpiniaceous tree species in a Central African rain forest

Newbery, David McClintock; Chuyong, George; Zimmermann, Lukas; Praz, C (2006). Seedling survival and growth of three ectomycorrhizal caesalpiniaceous tree species in a Central African rain forest. Journal of Tropical Ecology, 22(5), pp. 499-511. Cambridge: Cambridge University Press 10.1017/S0266467406003427

[img]
Preview
Text
JTropEcol_22_499.pdf - Published Version
Available under License Publisher holds Copyright.

Download (239kB) | Preview

Tree recruitment is determined in part by the survivorship and growth of seedlings. Two seedling cohorts of the three most abundant caesalpiniaceous species forming groves at Korup, Cameroon, were followed from 1995/1997 to 2002, to investigate why Microberlinia bisulcata, the most abundant species, currently has very few recruits compared with Tetraberlinia korupensis and T. bifoliolata. Numbers of seedlings dying, and the heights and leaf numbers of survivors, were recorded on 30 occasions. Survivorship after 2.5 y was 30% for M. bisulcata and 59% for the similar Tetraberlinia spp. together. After 7 y the corresponding values were 4 and 21%. Growth of all species was slow for the first 4 y; but survivors of T. korupensis became 63% taller, as the other species stagnated, by 7 y. The poor recruitment of M. bisulcata was the result of its very low seedling survival. Within species, the tallest seedlings of M. bisulcata and T. bifoliolata, but medium-height ones of T. korupensis, survived longest. This was likely due to higher root allocation in T. korupensis. Seedling dynamics of M. bisulcata and T. korupensis over 7 y accorded well with relative abundances of adult trees; T. bifoliolata is predicted to recruit later.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Vegetation Ecology (discontinued)

UniBE Contributor:

Newbery, David McClintock; Chuyong, Georg and Zimmermann, Lukas

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0266-4674

Publisher:

Cambridge University Press

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

04 Oct 2013 14:53

Last Modified:

20 Mar 2017 16:27

Publisher DOI:

10.1017/S0266467406003427

Web of Science ID:

000239975200002

BORIS DOI:

10.7892/boris.22521

URI:

https://boris.unibe.ch/id/eprint/22521 (FactScience: 35130)

Actions (login required)

Edit item Edit item
Provide Feedback