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New Zealand Frog's Epic 40-Year Journey
14 Sep
Summary
- 100 frogs were relocated in 1984 to create a second population.
- Monitoring revealed high survival and successful reproduction over decades.
- The project offers crucial lessons for future amphibian conservation.
In 1984, conservationists in New Zealand's Marlborough Sounds undertook a significant translocation of Maud Island frogs. Approximately 100 individuals were moved from a small, isolated habitat to a restored area on Maud Island, establishing a crucial second population.
This initiative, documented in the New Zealand Journal of Zoology, involved moving frogs in two consignments during May 1984 and May 1985. Subsequent monitoring for nearly two decades revealed that most translocated frogs settled near their new location, demonstrating adaptability. A key finding indicated that these frogs exhibited better body condition, possibly due to lower density and abundant food.
The population initially faced declines but stabilized through successful recruitment, with some individuals living for an extended period. Later reviews in 2010 highlighted this as an extensive study of a wild frog population, with Hamilton's frog noted for its longevity, potentially up to 45 years.
The Boat Bay project proved instrumental, offering valuable insights for future conservation. It informed subsequent translocations, including one in 1997 of 300 frogs to Motuara Island. This case study underscores the long-term success and importance of amphibian conservation efforts in New Zealand.
