Chester Zoo pays tribute following death of orangutan Martha
TRIBUTES have been paid to 'the grand old lady of Chester Zoo' as Martha the orangutan has died at the age of 59.
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TRIBUTES have been paid to 'the grand old lady of Chester Zoo' as Martha the orangutan has died at the age of 59.
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TRIBUTES have been paid to 'the grand old lady of Chester Zoo' as Martha the orangutan has died at the age of 59.
Context. Trophic overlap between invasive and native species can cause a competitive displacement of the native. In Australian freshwaters, the invasive crayfish Cherax destructor has proliferated into the ranges of native Euastacus species. Aims. To examine trophic overlap between C. destructor and the critically endangered Euastacus dharawalus and determine whether C. destructor population control causes shifts in the diet and trophic position of E. dharawalus. Methods. We compared δ13C and δ15N values of tissue from both species collected from two sites. Population control of C. destructo...
Sharks and rays make up a key part of the diet and livelihood in parts of Ghana—now researchers want to know more about these little-studied species.