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The dwarf crab is native to the east coast of the Americas where it has the distribution from New Brunswick, Canada to north-east Brazil. There is also a breeding fresh water population in the Brazos River basin, Texas.
Conservationists believe that this is down to efforts by Chinese park officials and provincial governments. The Qinghai provincial government, for example, recently launched several conservation-related policies and region-wide projects that aim to build a foundation for wildlife conservation.
It is amongst the most diverse of all insect families, numbering around 60,000 species worldwide, of which about 3,000 occur in the UK.
Through rewildling, a conservation measure that is becoming more popular across the globe, bison are now being returned to the wild, where they once lived, back where they belong.
It is most common off the coast of Essex and in the Thames estuary (River Medway). There are also isolated populations in both North Wales and Cornwall.
As well as hunting, their populations have fallen due to an increase in the practice by local farmers of releasing cattle indiscriminately into national parkland for retrieval later in the year, which has damaged their habitat.
Cells are found either in isolation or in colony where they are organized in straight lines or in a zigzag pattern in the pelagic zone or sometimes attached to other marine species.
Despite being listed as threatened under the Endangered Species Act in 1992, conservation efforts haven’t come close to increasing their population, and haven’t even been able to halt their decline.
It still regarded as a potentially important commercial species but it is highly susceptible to a disease (Bonamiosis) caused by Bonamia sp.
Technically speaking, most members of this large family of flies can be identified as hoverflies by the presence of a spurious extra ‘vein’ on their wing.