Deforestation and Extinctions of Beetles in Madagascar
Author Information
Author(s): Hanski Ilkka, Koivulehto Helena, Cameron Alison, Rahagalala Pierre
Primary Institution: University of Helsinki
Hypothesis
Does regional forest loss explain apparent extinctions of endemic forest beetles in Madagascar?
Conclusion
Deforestation has likely caused the extinction or effective extinction of many endemic insect species in Madagascar.
Supporting Evidence
- Madagascar has lost about half of its forest cover since 1953.
- Only 10% of the original forest cover remains.
- Species-area considerations suggest that this will allow roughly half of the species to persist.
Takeaway
Madagascar's forests are disappearing, and many unique beetles are likely gone because they had nowhere to live.
Methodology
The study involved sampling dung beetles across Madagascar using traps and analyzing historical forest cover data.
Potential Biases
Potential phylogenetic bias due to uncollected species.
Limitations
The study may not have sampled all species due to uneven coverage of Madagascar.
Statistical Information
P-Value
0.46
Statistical Significance
p=0.46
Digital Object Identifier (DOI)
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