Showing posts with label Invertebrates. Show all posts
Showing posts with label Invertebrates. Show all posts

17 December 2009

Collector's Item

Gooty Sapphire (Poecilotheria metallica), Critically Endangered












The first thing I learned about this tree dwelling tarantula, was that it has to be seen to be believed. When I saw a picture, I understood why. The rare beauty of this spider's color may be its salvation or its doom.

Native to a tiny, tiny, tiny, patch of India, this entire species occupies less than 100 km squared--and that's a generous estimate. Sounds big, but look at this map, and you'll see just how tiny it is.

With it's habitat being degraded as humans cut trees for timber and firewood, it's up for debate whether the smugglers who have spirited some of these spiders out of the country will ultimately help the spiders or cause their demise.

Coveted among spider and insect collectors and hobbyists for their colour, these spiders are being bred in captivity by specialist pet shops. A young Sapphire Gooty spiderling can fetch more than US$150. Although they are fairly rare right now, as hobbyists continue to breed them, they may become more common.

I don't generally support taking wild animals out of their native habitat for use as pets, but perhaps this time it might save them, or at least ensure that some remain if they can no longer survive in the wild.

What do you think? Is this biopiracy or conservation in disguise?

29 November 2009

Latest Statistics

The IUCN (International Union for Conservation of Nature) has recently issued an updated version of its well-known IUCN Redlist, the most comprehensive and authoritative measure of the endangered-ness of species around the world. According to the latest information, 17,291 species are threatened with extinction out of a total of 47,677 assessed species. "The scientific evidence of a serious extinction crisis is mounting,” according to Jane Smart, Director of IUCN’s Biodiversity Conservation Group.

Below are some graphs, illustrating the most recent statistics. Red areas represent species that are threatened. One thing to keep in mind while looking at these charts--these graphics represent only species that are assessed by the IUCN. So, although just about all of the known mammal, amphibian, and bird species have been described and assessed, only small percentages of the world's known plants, invertebrates, fish, and reptiles, have been assessed. Which of course means that there are a lot of species out there whose status is unknown. They may be threatened or not--we just don't know. If you're interested in more details, check out the Summary Statistics published by the IUCN.







24 November 2008

Crab Colossus

Coconut Crab (Birgus latro), Data Deficient

Here's a great post about another Data Deficient creature, rather larger than the Pygmy Tarsier. Check it out at Endangered Ugly Things.

17 April 2007

Caught!

Queen Alexandra's Birdwings (Ornithoptera alexandrae)

A Japanese man has been sentenced in the US to nearly two years in a federal prison, after admitting to smuggling endangered butterflies into the country, and attempting to sell them. Among them was a pair of Queen Alexandra's Birdwings, which sold for $8,500.

These beautiful buterflies, are the largest in the world, with a wingspan of 30 cm.