English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The invasion of the giant Madagascar day gecko  Phelsuma grandis  has increased the threats to the four endemic Mauritian day geckos ( Phelsuma  spp.) that have survived on mainland Mauritius. We had two main aims: (i) to predict the spatial distribution and overlap of  P. grandis  and the endemic geckos at a landscape level; and (ii) to investigate the effects of  P. grandis  on the abundance and risks of extinction of the endemic geckos at a local scale. An ensemble forecasting approach was used to predict the spatial distribution and overlap of  P. grandis  and the endemic geckos. We used hierarchical binomial mixture models and repeated visual estimate surveys to calculate the abundance of the endemic geckos in sites with and without  P. grandis . The predicted range of each species varied from 85 km 2  to 376 km 2 . Sixty percent of the predicted range of  P. grandis  overlapped with the combined predicted ranges of the four endemic geckos; 15% of the combined predicted ranges of the four endemic geckos overlapped with  P. grandis . Levin's niche breadth varied from 0.140 to 0.652 between  P. grandis  and the four endemic geckos. The abundance of endemic geckos was 89% lower in sites with  P. grandis  compared to sites without  P. grandis , and the endemic geckos had been extirpated at four of ten sites we surveyed with  P. grandis . Species Distribution Modelling, together with the breadth metrics, predicted that  P. grandis  can partly share the equivalent niche with endemic species and survive in a range of environmental conditions. We provide strong evidence that smaller endemic geckos are unlikely to survive in sympatry with  P. grandis . This is a cause of concern in both Mauritius and other countries with endemic species of  Phelsuma .

plos one

Ecological Effects of the Invasive Giant Madagascar Day Gecko on Endemic Mauritian Geckos: Applications of Binomial-Mixture and Species Distribution Models