NDLI: Termite Mounds Increase Functional Diversity of Woody Plants in African Savannas

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Termite Mounds Increase Functional Diversity of Woody Plants in African Savannas

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Termite Mounds Increase Functional Diversity of Woody Plants in African Savannas

Content Provider	Springer Nature Link
Author	Joseph, Grant S. Seymour, Colleen L. Cumming, Graeme S. Cumming, David H.M. Mahlangu, Zacheus
Copyright Year	2014
Abstract	Fine-scale spatial heterogeneity influences biodiversity and ecosystem productivity at many scales. In savanna systems, Macrotermes termites, through forming spatially explicit mounds with unique woody plant assemblages, emerge as important sources of such heterogeneity. Despite a growing consensus regarding the importance of functional diversity (FD) to ecosystem processes, no study has quantified how termite mounds affect woody plant FD. We address whether termite mounds alter the distribution of functional traits, and increase FD of woody plant communities within Africa’s largest savanna woodland, the 2.7 million km2 miombo system. Using plant traits that change according to soil resources (for example, water and nutrients), and disturbance (for example, fire and elephant herbivory), we identified response functional groups and compared relative representation of these groups between mound and matrix habitats. We also asked whether mound and matrix habitats differed in their contribution to FD within the system. Although species representing most functional groups were found in both mound and matrix habitats, relative abundance of functional groups differed between mound and matrix. Mound plant assemblages had greater response diversity to soil resources than matrix plots, but there was no difference in response diversity to disturbance. High trait values on mounds included tree height, leaf nitrogen, phosphorus, and palatability. Species with root ectomycorrhizae dominated the matrix. In conclusion, these small patches of nutrient-enriched substrate emerge as drivers of FD in above-ground woody plant communities.
Starting Page	808
Ending Page	819
Page Count	12
File Format	PDF
ISSN	14329840
Journal	Ecosystems
Volume Number	17
Issue Number	5
e-ISSN	14350629
Language	English
Publisher	Springer US
Publisher Date	2014-03-05
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	disturbances of herbivory and fire functional diversity functional groups Macrotermes resource patches soil resources spatial heterogeneity Ecology Plant Sciences Zoology Environmental Management Geoecology/Natural Processes Hydrology/Water Resources
Content Type	Text
Resource Type	Article
Subject	Ecology Environmental Chemistry Ecology, Evolution, Behavior and Systematics

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Abundance and Impact on Soil Properties of Cathedral and Lenticular Termite Mounds in Southern Indian Woodlands

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Termite mounds mitigate against 50 years of herbivore-induced reduction of functional diversity of savanna woody plants

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Soil CO2 Emissions Associated with Termitaria in Tropical Savanna: Evidence for Hot-Spot Compensation

Termite Mounds Increase Functional Diversity of Woody Plants in African Savannas

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