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Quantifying anthropogenic threats to orchids using the IUCN Red List
Jenna Wraith1, Catherine Pickering2
1Environmental Futures Research Institute, Griffith School of Environment, Griffith University, Parklands Drive, Southport, Gold Coast, QLD, 4222, Australia. jenna.wraith@griffithuni.edu.au.
Ambio
|October 19, 2017
Summary
Orchids face diverse threats globally, with distinct regional patterns. Conservation efforts should target key threats like illegal collecting, land clearing, and climate change, especially in vulnerable orchid populations.
Area of Science:
- Botany
- Conservation Biology
- Ecology
Background:
- Orchids exhibit remarkable diversity and inhabit varied environments worldwide.
- Orchid species are disproportionately represented on threatened species lists, indicating significant conservation concern.
Purpose of the Study:
- To identify which orchid species are threatened, their geographical distribution, and the primary drivers of their endangerment.
- To analyze the global patterns and syndromes of threats affecting orchid populations.
Main Methods:
- Utilized data from the International Union for Conservation of Nature (IUCN) Red List to assess global orchid threats.
- Categorized threats into four distinct syndromes based on orchid type, habitat, and geographical region.
Main Results:
- Identified four major threat syndromes: illegal collecting of endemic terrestrial orchids, climate change and human activities impacting East Asian orchids, diverse threats to African epiphytic orchids, and land clearing for agriculture in South/Southeast Asia.
- Highlighted regional concentrations of co-occurring threats, such as illegal collecting in forests, climate change and development in East Asia, varied pressures in Sub-Saharan Africa, and agricultural expansion in South/Southeast Asia.
Conclusions:
- Conservation strategies can be more effective by addressing regional clusters of co-occurring threats.
- A global awareness of the pervasive threats of plant collecting, land clearing, and climate change is crucial for orchid conservation.