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Prioritizing conservation efforts based on future habitat availability and accessibility under climate change.

Jie Liang1,2, Wanting Wang1,2, Qing Cai3

  • 1College of Environmental Science and Engineering, Hunan University, Changsha, P.R. China.

Conservation Biology : the Journal of the Society for Conservation Biology
|October 19, 2023
PubMed
Summary
This summary is machine-generated.

Migratory birds face habitat loss due to climate change. This study integrates habitat availability and accessibility to identify crucial conservation areas in the Yangtze River basin for birds.

Keywords:
adaptación al cambio climáticoanálisis de redesclimate change adaptationclimate velocityconectividadconnectivityhabitat suitabilityidoneidad del hábitatnetwork analysisvelocidad del clima气候速度生境适宜性网络分析连通性适应气候变化

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Area of Science:

  • Ecology
  • Conservation Biology
  • Climate Change Biology

Background:

  • Species range shifts are crucial for avoiding extinction under climate change.
  • Previous conservation strategies often overlooked dynamic range shifts, focusing on fixed climate refugia.
  • Understanding both habitat availability and accessibility is vital for effective conservation planning.

Purpose of the Study:

  • To quantify future habitat availability and accessibility for migratory birds in the Yangtze River basin under climate change.
  • To assess the range-shift potential of migratory birds considering climate velocity.
  • To identify critical conservation priority areas for migratory birds in the 2050s.

Main Methods:

  • Quantified future habitat availability using species occurrence, climate, land cover, and elevation data.
  • Assessed habitat accessibility based on climate velocity under four climate change scenarios.
  • Employed network analysis to identify conservation priority areas for migratory birds.

Main Results:

  • Medium and high climate velocity (5-10 km/year and ≥10 km/year) threaten significant portions of stable bird habitat.
  • Even with low climate velocity (0-5 km/year), destination habitats showed reduced availability compared to source habitats.
  • Key conservation areas were identified in Sichuan and the middle to lower Yangtze River basin.

Conclusions:

  • Habitat availability and accessibility dynamics are critical for predicting biological responses to climate change.
  • Accounting for dynamic species range shifts is essential for identifying effective conservation priorities.
  • The study provides a novel method for forecasting climate-driven distribution shifts and informing conservation strategies for migratory birds.