Scientists think that the tadpole shrimp
may have the oldest pedigree of any living animal.
Field introductions and establishment of the tadpole shrimp
, Triops longicaudatus (Notostraca: Triopsidae), a biological-control agent of mosquitoes.
How tadpole shrimp
came to be in Missouri is unknown, but dispersal occurs via floodwaters (Taylor et al.
have a carapace--the part of the shell that covers the head--and fairy shrimp (including brine shrimp) lack it.
Reflecting this loss, much of the remaining habitat, including the land at issue in this case, has been designated under the Endangered Species Act as "critical habitat" for two endangered species found nowhere else in the world -- vernal pool fairy shrimp and vernal pool tadpole shrimp
The property turned out to support more than 100 acres (40 ha) of seasonal wetlands, including habitat of such endangered species as the Contra Costa goldfields (Lasthenia conjugens), vernal pool tadpole shrimp
(Lepidurus packardi), and California tiger salamander (Ambystoma californiense).
In California, an 11 million gallon (42 million liter) spill of liquid waste from a large poultry farm damaged a wetland vernal pool system in the Arena Plains Unit of Merced National Wildlife Refuge, killing endangered vernal pool fairy shrimp (Branchinecta lynchi) and vernal pool tadpole shrimp