SeychellesRat Eradication Boosts Shearwater Population
D'Arros Island in Seychelles sees sharp rise in Wedge-tailed Shearwater breeding pairs after rat eradication in 2003. The population grew to 2,768 pairs in 2016 and 2,406 in 2021.
Global Newsflix 1 min read
The eradication of rats from D'Arros Island in 2003 has led to a significant increase in the Wedge-tailed Shearwater breeding population.
Researchers counted 2,768 breeding pairs in 2016 and 2,406 in 2021, compared to about 254 pairs in 2009.
This growth represents a nearly 10-fold increase in the population since the rat eradication.
Key facts
- Rats were eradicated from D'Arros Island in 2003.
- Wedge-tailed Shearwater breeding pairs increased to 2,768 in 2016.
- The population was 2,406 pairs in 2021.
- The 2009 population was about 254 pairs.
Three perspectives
Neutral
The data shows a clear correlation between the eradication of rats and the growth of the Wedge-tailed Shearwater population. The island's ecosystem has likely benefited from the removal of the invasive species. Further research may be needed to understand the full impact of this change.
Positive
The significant increase in the Wedge-tailed Shearwater population is a positive outcome for conservation efforts. The eradication of rats has allowed the native species to thrive, demonstrating the effectiveness of targeted conservation actions.
Negative
The initial low population of Wedge-tailed Shearwaters highlights the devastating impact of invasive species on native ecosystems. The fact that it took over a decade for the population to significantly recover suggests that conservation efforts may need to be more proactive and timely.
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