Tuesday, June 24, 2008

Tiny endemic, on flickr

Image by Nuysia@Tas.

Endemic species are found in one area, and no where else in the world. As such, they are extremely sensitive to habitat degredation and easily threatened.

From the caption:
The Tasmanian viviparous seastar, Patiriella vivipara. Adults achieve a full size of 13mm across. This tiny species is endemic to Tasmania, is known from a handful of locations and is considered threatened. Rather than going through the usual planktonic larval stage that most seastars go through, this species hold the larvae in it's gonad until they are fully formed. These minute baby seastars emerge from the backof the parent. This reproduction method limits the spread of this species to suitable habitat elsewhere along the coast.

View distribution map.

Patriella vivipara at Parks & Wildlife Service Tasmania web site.

1 comment:

Anonymous said...

Wow this is so tiny, I had never heard about it but sounds interesting to know it. As a matter my grandpa is a scientist and he didn't told me about show me this. Maybe 'cause he is always visiting
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