Monthly Archives: February 2023

Before it is too late – Boas (not yet) extinct in the wild

The advent of man brought many species to extinction. Ironically, today some of the most endangered animal and plant species don’t live in nature, but rather in zoos, aquariums and botanical gardens. A review published on February 24, 2023 in the Magazine Science compared the species holdings of zoos, aquariums and botanical gardens with data from the IUCN red list. The researchers found that 84 species exist only under human care but are extinct in the wild (EW) .

Many factors contribute to the extinction Continue reading Before it is too late – Boas (not yet) extinct in the wild

Study on the Cuban boa reveals deep genetic diversity

Some time ago, Ivan Rehák from the Zoo Prague informed us about a new genetic study on the Cuban boa Chilabothrus angulifer that he co-authored . We are very thankful for this and appreciate the study. We are deeply sorry for not covering it earlier.

The team of researchers addressed the question whether the Cuban boa is in fact a species complex. They analyzed the mitochondrial haplotype structure of the European ex situ population of Cuban boas. The results revealed a high degree of diversity. 96 specimens were sequenced and 25 distinct haplotypes detected.

The results further indicated a deep divergence among three principal haplogroups, with bayesian estimates of the divergence time equal to 3.57 and 2.26 Mya respectively.

Rehák and colleagues consider this divergence as an argument for diverse evolutionary lines whose distance corresponds to or is greater than among some other – taxonomically recognized – species of the genus.

Whether these lines represent whole species or subspecies needs to be tested by further in depth studies with genetic material collected from different locations in cuba.

To read the study please click here

 

Citations

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