Thursday, 18 April 2013

Two new genera of tree frogs found in Western Ghats

  • They are named after two remarkable personalities associated with this landscape
  • Erratic rainfall during recent years likely to affect breeding patterns of these frogs
  • They were found in highly threatened fresh water swamp eco systems
Two new genera of frogs were discovered by a team of independent researchers, led by Anil Zachariah and Robin Kurian Abraham, during their recent exploration in the Western Ghats.

The discovery, published in the latest issue of International Taxonomic Journal Zootaxa , is a joint effort by the team which comprised B .R. Ansil; Arun Zachariah of the Wild Life Disease Research Lab in Wayanad; and Robert Alexander Pyron, Assistant professor, Department of Biological Sciences of the George Washington University, U.S.


Biodiversity hot spot

The discovery once again proves that the Western Ghats, a biodiversity hot spot and Unesco world Heritage site, is a treasure trove of many amphibians.

It was found that the newly found genera belonged to tree frog family ‘Rhacophoridae.’ The frogs were discovered in highly threatened fresh water swamp eco systems, which are unique to the mountain range.

Mercurana myristicapalustris
The frogs discovered are named after two remarkable personalities who had an association with this landscape. One genus is named ‘Beddomixalus’ after colonel Richard Henry Beddome. He was a gifted polymath of the colonial era, who made extraordinary contributions to the understanding to the natural history of the sub-continent while serving as the Chief Conservator of Forests in the Madras Presidency. His works were the first detailed forays towards a systematic and through understanding of the amphibian diversity of the Western Ghats.

The other genus has been christened ‘Mercurana’ to commemorate Freddie Mercury, late iconic lead singer of the British rock band Queen. Mercury (his pen name) was of Indian Parsi origin and had spent major part of his childhood in India in Panchagni, located in the northern part of the mountain range, where the frog now bearing his name has been discovered.

Beddomixalus bijui 
While the ‘Beddomixalus bijui’ was found in the swamp forests of the Anamalai and high ranges of Tamil Nadu and Kerala, ‘Mercurana myristicapalustris,’ is restricted to highly fragmented and threatened low land ‘Myristica’ swamp forests in the foothills of the Agastyamalai hills in Kollam and Thiruvananthapuram districts.

This distinctive forest type is dominated by wild relatives of nutmeg that thrive in waterlogged soil, and hence the name ‘Myristica’ swamp. But much of these types of forests have been lost, having been converted to raise cash crops such as rubber and oil palms, Dr. Anil Zachariah says.

Moreover, episodes of erratic rainfall over recent years are likely to affect the breeding patterns of these frogs and detailed studies are needed to explore such impacts, Mr. Abraham says.

The researchers highlight that the swamp forest and their unique biota are to be preserved. They stressed that the finding of two novel genera after more than a century of herpetological exploration in the region take the total number of tree frog genera in the Western Ghats to seven.

Source: http://www.thehindu.com/todays-paper/tp-national/two-new-genera-of-tree-frogs-found-in-western-ghats/article4628482.ece

Brow-antlered deer flourish in Manipur national park

IBOYAIMA LAITHANGBAM | IMPHAL, April 18, 2013

Threat to endangered species from hydel plant and poaching remains

  • Politicians instigated villagers to demand closure of the national park and convert it into a paddy field
  • There are suggestions to keep some deer in national parks in Assam
A brow-antlered deer cools off in a water tub in its
open-air enclosure at the Alipore Zoo in Kolkata.
- File photo
Wildlife lovers are overjoyed by the recent report that the population of the brow-antlered deer in its natural habitat at the Keibul Lamjao National Park, located within the Loktak Lake in Manipur, has increased from 180 a few years back to 200 now. However, the big question is how long this deer, listed in the Red Book, will survive.

The deer has been facing a two-pronged threat. The first blow was the commissioning of the 105 MW Loktak project in 1983 by the National Hydroelectric Power Corporation. As the three turbines are draining water round the clock, the floating biomass on which the deer live, has been ravaged. The second threat is from poachers.

Local newspapers have been regularly publishing reports and photographs on poaching and sale of venison.

This rare deer was first discovered in 1839. Because of extensive poaching by the British and others, it was feared that it had become extinct in 1951. However, just six deer were sighted at the natural habitat in 1953. A flurry of activity was galvanised to save it. The population increased to 14 in 1975 and 155 in 1995. The official census conducted in 2000 counted 162 deer – 54 stags, 76 hinds and 32 fawns. The Manipur Wildlife (Protection) Act, 1972 was also enforced. The sanctuary created in 1966 was declared a national park in 1977.

Apart from the damage done by the Loktak project, human disturbance is also a great threat to the deer. Large scale use of poison to catch fish has also killed grass in the bio mass.

Some local politicians instigated the villagers to demand closure of the park so that it could be converted to a paddy field. Poachers and villagers beat up the skeleton staff of the wildlife wing guarding the park and even torched their personal belongings. The government deployed a detachment of Manipur Rifles troopers there. This was effective since the forest guards could chase away the poachers and other anti-social elements. However, the troopers were later recalled for unexplained reasons.

There were suggestions to keep some deer in the national parks in Assam. This attracted strong objections as the parks there do not have floating biomass.

Source: http://www.thehindu.com/todays-paper/tp-national/browantlered-deer-flourish-in-manipur-national-park/article4628483.ece