How to be a responsible steward of Democracy, Human Rights Capitalism and Planet Earth.



HOW TO BE A RESPONSIBLE STEWARD OF PLANET EARTH


Creating a better world for all through social media activism

Saturday, January 28, 2012

ENDANGERED SPECIES

Florida manatee.
1. Species distribution.
The Florida manatee (Trichechus manatus latirostris) is a subspecies of the West Indian manatee (Trichechus manatus). The Florida manatee's primary range is the Florida peninsula, but individuals can be found as far north as Virginia and as far west as Louisiana during warm summer months.

2. Reasons for endangerment.
The estimated population for the Florida manatee in 1992 indicated there may be as few as 2,000 animals. Tragically, manatee deaths are increasing each year. Since 1976, total deaths have risen an average of 5.3% each year. The majority of human-related deaths are caused by collisions with boats; boat divers can't see the camouflaged, slow-moving manatees to avoid accidents. Prenatal deaths (i.e. stillborn and newborn calves) are also quite high. The exact cause of these deaths isn't known. Other causes of death include disease and parasitism, exposure to cold weather, crushing in flood control structures and navigational locks, shooting by humans, and entanglement in fishing line and ropes.

3. Conservation efforts.
Florida manatees are listed as endangered by the Endangered Species Act, vulnerable by the IUCN/World Conservation Union, and on Appendix I of CITES. They're also protected under the MMPA and the Florida Manatee Sanctuary Act.

In most Florida counties manatees are also protected by boat speed laws and no-boat zones. Several institutions (permitted by the USFWS), including Sea world of Florida, are involved in the rescue and rehabilitation of injured or sick manatees.


California condor. 1. Species distribution.
The California condor (Gymnogyps californianus) once ranged throughout the coastal regions of North America, from British Columbia to Baja California, and from Florida to New York. By the 1800s the condors were restricted to the Pacific coast. Today they live only in the Sespe Condor Sanctuary in Southern California, the Los Angeles Zoo, and the San Diego Wild Animal Park.

2. Reasons for endangerment.
California condors used to number in the thousands. By 1939 their numbers were estimated to be under 100, and by 1982 only 21 to 24 birds remained in the wild. Reasons for their decline include habitat loss, poaching, a low reproductive rate, electrocution by high-voltage wires, and poisoning by eating animal carcasses that contained lead.

3. Conservation efforts.
In 1981, the California Department of Fish and Game permitted the San Diego Zoological Society and the Los Angeles Zoo to breed condors. Chicks and eggs were first collected for the program, but due to continued threats to adults in the wild, all birds were captured by 1987. The breeding program has been successful, with over 50 birds now in captivity. Eight birds have been reintroduced into the Sespe Condor Sanctuary and future releases are being planned.

The California condor is listed as endangered by the Endangered Species Act, the IUCN/World Conservation Union, and Appendix 1 of CITES.


No comments:

Post a Comment