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Spatial relationship between climatic diversity and biodiversity conservation value.

Junjun Wang^1,2, Ruidong Wu^1,2, Daming He^1,2

¹Conservation Biogeography Research Group, Institute of International Rivers and Eco-security, Yunnan University, Kunming, Yunnan, 650091, China.

Conservation Biology : the Journal of the Society for Conservation Biology

|June 5, 2018

Summary

This summary is machine-generated.

Protecting climatic diversity enhances biodiversity resilience to climate change. A study in Yunnan found a composite index of climatic diversity (CICD) best indicated conservation value, guiding more effective reserve planning.

Keywords:

Yunnan cambio climático climate change climatic units conservation planning planeación de la conservación priority conservation areas protected areas unidades climáticas áreas prioritarias de conservación áreas protegidas

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Area of Science:

Ecology
Conservation Biology
Climate Change Science

Background:

Climate change necessitates resilient biodiversity conservation strategies.
Understanding the link between climatic diversity and biodiversity is crucial for effective reserve design.
Previous research has not fully explored the extent and generality of this hypothesis.

Purpose of the Study:

To quantitatively assess climatic diversity in Yunnan, China.
To evaluate the relationship between climatic diversity indicators and biodiversity conservation value.
To determine the representation of climatic diversity within existing nature reserves.

Main Methods:

Classification of climatic units and modeling of four climatic diversity indicators: variety (VCU), rarity (RCU), endemism (ECU), and composite index (CICD).
Utilized five priority conservation area (PCA) schemes to identify areas of high conservation value.
Analyzed spatial relationships between climatic diversity indicators and PCA results, alongside reserve coverage.

Main Results:

The composite index of climatic diversity (CICD) was the strongest indicator of high conservation value, followed by endemism (ECU) and rarity (RCU).
Contrary to expectations, variety of climatic units (VCU) did not correlate positively with biodiversity conservation value.
While rarer and more endemic climatic units had better reserve coverage, only 10.5% of Yunnan's land area was protected above 17% coverage for 28 units.

Conclusions:

Climatic diversity, particularly measured by CICD, ECU, and RCU, can serve as an effective surrogate for biodiversity conservation planning under climate change.
Topography and human disturbances significantly influence the relationship between climatic diversity and biodiversity value.
The findings provide an evidence-based foundation for systematic conservation planning that incorporates climatic diversity to build robust reserve networks resilient to climate change.