Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Which traits determine shifts in the abundance of tree species in a fire-prone savanna?
Journal of Ecology, Volume 100, No. 6, Year 2012
Notification
URL copied to clipboard!
Description
Fire is a process that shapes the structure and composition of vegetation in many regions. Species in these regions have presumably evolved life-history strategies that allow success in fire-prone environments. In this study, we examine the extent to which the ecological success of savanna trees is determined by traits that enhance the capacity to tolerate fire and/or traits indicative of an ecophysiological capacity for rapid growth. We define ecological success as the relative change in stem density over the course of a long-term (circa 40 year) fire experiment conducted in the Kruger National Park, South Africa. We first examine the extent to which differences in the capacity of trees to tolerate fire can be explained by allometries describing bark traits and tree size. We then examine whether these differences in fire tolerance traits can explain observed shifts in abundance. We show that species differ in their topkill responses (probability of above-ground mortality) and that these differences are explained in part by differences in bark moisture content and the allometry between height and diameter. Contrary to previous studies, we find no evidence that bark thickness is important in explaining susceptibility to topkill. Synthesis. Fire tolerance traits did explain a significant component of the variance in observed shifts in the abundance of tree species. However, traits related to the carbon economy of photosynthesis were also important. © 2012 The Authors. Journal of Ecology © 2012 British Ecological Society.
Authors & Co-Authors
Higgins, Steven Ian
Germany, Frankfurt am Main
Goethe-universität Frankfurt am Main
Bond, William J.
South Africa, Cape Town
University of Cape Town
Combrink, Hendrik J.
South Africa, Cape Town
University of Cape Town
South Africa, Skukuza
Kruger National Park
Craine, Joseph Mitchell
United States, Manhattan
Kansas State University
February, Edmund Carl
South Africa, Cape Town
University of Cape Town
Govender, Navashni
South Africa, Skukuza
Kruger National Park
Lannas, Kathryn S.M.
South Africa, Cape Town
University of Cape Town
Moncrieff, Glenn R.
Germany, Frankfurt am Main
Goethe-universität Frankfurt am Main
Trollope, Winston S.W.
South Africa, Durban
Working on Fire International
Statistics
Citations: 60
Authors: 9
Affiliations: 5
Identifiers
Doi:
10.1111/j.1365-2745.2012.02026.x
ISSN:
00220477
e-ISSN:
13652745
Research Areas
Environmental
Study Approach
Quantitative
Study Locations
South Africa