World’s mangrove-dependent animals threatened with extinctionJuly 1st, 2009 - 3:09 pm ICT by ANI
Washington, July 1 (ANI): An assessment indicates that more than 40 percent of a sample of amphibians, reptiles, mammals, and birds that are restricted to mangrove ecosystems are globally threatened with extinction.
The assessment, by David A. Luther of the University of Maryland and Russell Greenberg of the Smithsonian Migratory Bird Center, was based on an extensive literature search and expert consultations.
Mangroves, which are salt-tolerant woody plants concentrated along coastal margins, generally in warm regions, have long been known to support many species of animals.
Hundreds of vertebrates are sometimes found in mangroves, but Luther and Greenberg concentrated on the 69 terrestrial vertebrate species and subspecies that seem restricted to mangroves: 48 birds, 14 reptiles, 6 mammals, and 1 amphibian.
These include several species with striking adaptations, such as specialized glands to excrete salt.
The ground foragers among them feed primarily on crabs, but many of the birds feed on insects.
For unclear reasons, mangrove-restricted species and subspecies are concentrated in Asia and Australia.
Between the early 1980s and 2001, between 19 and 35 percent of the world’s mangrove forest area was lost.
At this rate of loss, about 2 percent each year, mangroves could be extinct in 100 years.
Only 27 of the terrestrial vertebrates that are dependent on mangroves have been assessed by the IUCN (International Union for the Conservation of Nature), and 13 of those are classified as threatened on the IUCN Red List, Luther and Greenberg report.
The conclusions emphasize the vulnerability of animals that are dependent on a habitat rapidly being lost or degraded through coastal development, overexploitation, pollution, and changes in sea level and salinity. (ANI)
- A fifth of world's life at extinction risk - Oct 27, 2010
- A fifth of world's life at extinction risk: Report - Oct 27, 2010
- 10 species disappear from Mexican forests - Apr 21, 2011
- Scientists warn that one-fifth of the species are going to slide to extinction - Oct 27, 2010
- Scientists fear mass extinction has begun - Oct 27, 2010
- Save 587 sites to save life, urge scientists - Oct 26, 2010
- A Fifth of Species Slides Toward Extinction; Sixth Mass Extinction Underway? - Oct 28, 2010
- Scientists fear another round of mass extinction (Lead) - Oct 27, 2010
- Ancient global warming turned earth an inferno - Nov 18, 2011
- Two thirds of all species of freshwater crab maybe at risk of going extinct - Jul 28, 2009
- Inia Boliviensis, The Pink Dolphin Of Amazon Gets Famous - Oct 27, 2010
- Humans driving extinction faster than new species can evolve - Mar 08, 2010
- Amphibian declines have multiple causes with no simple solution - Apr 26, 2011
- Maharashtra to bid for UN recognition to six wetlands (With Images) - Sep 07, 2012
- IUCN to inspect Great Himalayan National Park - Jul 18, 2011
Tags: coastal development, coastal margins, conservation of nature, expert consultations, foragers, forest area, iucn red list, literature search, mangrove ecosystems, mangrove forest, mangroves, migratory bird center, overexploitation, russell greenberg, smithsonian migratory bird center, terrestrial vertebrate species, terrestrial vertebrates, unclear reasons, warm regions, woody plants