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Getting better with age: Lessons from the Kenya Long-term Exclosure Experiment (KLEE)
Corinna Riginos1, Duncan M Kimuyu2,3, Kari E Veblen4
1The Nature Conservancy, Lander, Wyoming, USA.
Ecology Letters
|December 31, 2024
Summary
The Kenya Long-term Exclosure Experiment (KLEE) reveals long-term ecological impacts of herbivores. Over 29 years, it highlights the value of sustained research for understanding savanna resilience and environmental change.
Area of Science:
- Ecological science
- Rangeland ecology
- Long-term ecological research
Background:
- Established in 1995, the Kenya Long-term Exclosure Experiment (KLEE) investigates herbivore impacts in semi-arid savanna.
- The experiment examines the effects of livestock, wildlife, and megaherbivores on the shared environment over 29 years.
Purpose of the Study:
- To assess the long-term, separate, and combined effects of various herbivores on savanna ecosystems.
- To address questions of ecological stability and resilience across multiple drought-rainy cycles.
- To balance question-driven research with the value of long-term data collection.
Main Methods:
- Long-term ecological monitoring within experimental exclosures.
- Quantification of environmental effects across varying years, including drought periods.
- Analysis of ecological changes influenced by anthropogenic factors.
Main Results:
- Identification of experimental effects that manifest over extended periods (29 years).
- Quantification of inter-annual variations in ecological responses, including drought impacts.
- Detection of ecological signatures indicative of anthropogenic change.
Conclusions:
- Long-term studies are crucial for understanding slow-developing ecological processes and resilience.
- Sustained research in savanna ecosystems provides invaluable data on environmental dynamics.
- Long-term experiments foster scientific collaboration and generate new research questions.
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