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Landscape moderation of biodiversity patterns and processes - eight hypotheses
Teja Tscharntke1, Jason M Tylianakis, Tatyana A Rand
1Agroecology, Department of Crop Sciences, Georg-August University, Grisebachstrasse 6, 37077 Göttingen, Germany. ttschar@gwdg.de
Biological Reviews of the Cambridge Philosophical Society
|January 26, 2012
Summary
Human-modified landscapes significantly influence biodiversity and ecosystem processes. This review proposes eight hypotheses to guide research on how landscape composition and configuration shape ecological communities and services.
Area of Science:
- Ecology
- Environmental Science
- Conservation Biology
Background:
- Understanding landscape effects on biodiversity is crucial for managing global environmental change.
- Human activities extensively modify landscapes, impacting ecological patterns and processes.
- Existing research often focuses locally, neglecting broader landscape-scale influences.
Purpose of the Study:
- To propose eight hypotheses, based on human-modified landscapes, for systematic research.
- To explore the role of landscape composition and configuration in ecological communities.
- To advance understanding of ecosystem functioning and services under landscape change.
Main Methods:
- Review of knowledge from human-modified landscapes.
- Organization of hypotheses into four overarching themes: biodiversity patterns, population dynamics, functional trait selection, and conservation management.
- Formulation of specific hypotheses addressing landscape-moderated effects.
Main Results:
- Eight hypotheses are presented, categorized under four themes.
- Hypotheses address landscape moderation of species pools, beta diversity, cross-habitat spillover, population concentration/dilution, trait selection, and ecological insurance.
- Hypotheses also cover landscape complexity's effect on conservation and biodiversity-ecosystem service management trade-offs.
Conclusions:
- Shifting research focus to landscape-moderated effects is critical for effective biodiversity management.
- Systematic research on landscape composition and configuration is needed.
- Developing solutions for future biodiversity and ecosystem service management requires a landscape perspective.
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