Protected areas alone cannot stem biodiversity loss: study

Kollam: The continued reliance on a strategy of setting aside land and marine territories as “protected areas” is insufficient to stem global biodiversity loss, says a comprehensive study published in Marine Ecology Progress Series, a journal of the Germany-based Inter-Research Science Centre, on Thursday.

Despite an impressively rapid growth of protected land and marine areas worldwide, totalling over 1,00,000 in number and covering 17 million sq.km of land and 2 million sq.km of oceans, biodiversity is in a steep decline, it adds.

The authors of the study, Camilo Mora of the University of Hawaii and Peter F. Sale of the United Nations University's International Network on Water, Health and Environment, says that in a country like India alone, about 4 million people can get displaced if protected areas are fully enforced.

While stating that protected areas are a valuable tool in the fight to preserve biodiversity, the study suggests getting serious about addressing the growth in size of the global population and the consumption rate because protected areas alone cannot solve the biodiversity loss problems.

“Clearly, the biodiversity loss problem has been underestimated and the ability of protected areas to solve this problem overestimated,” Dr. Mora says.

Expected scenarios of human population growth and consumption levels indicate that cumulative human demands will impose an unsustainable toll on the Earth's ecological resources and services, accelerating the rate at which biodiversity is being lost. Current and future human requirements will worsen the challenge of effectively implementing protected areas, while suggesting at the same time that effective biodiversity conservation requires new approaches.

Dr. Mora says, “Biodiversity is humanity's life support system delivering everything from food to clean water and air to recreation, tourism and to novel chemicals that drive our advanced civilisation.” Yet there is an increasingly well-documented global trend in biodiversity loss triggered by a host of human activities.

Dr. Sale says, “Protected areas have helped preserve some species at local scales, but promotion of this strategy as a global solution to biodiversity loss has occurred without adequate assessment of their potential effectiveness in achieving the goal.”

They warn that long-term failure of the protected areas strategy can erode public and political support for biodiversity conservation. The study also says that continuing heavy reliance on protected areas strategy has technical and practical limitations. These include slow growth in protected area coverage, inadequate size and connectivity of protected areas, underfunding, and conflicts with human development.

Source: The Hindu, 28-07-2011

Giant snails threaten to conquer more areas in Kerala

Kochi: Giant African Snails (Achatina fulica Bowtich) are likely to infest at least 41 locations in four districts in the State, according to a scientific prediction. Their presence has already been reported from 10 districts.

The Kerala Forest Research Institute (KFRI), Peechi, Thrissur, has come up with a prediction after assessing 20 parameters in the areas from where severe attack of the invasive snail species was reported. The parameters to make a prediction model included, elevation from the mean sea level, precipitation during the wettest and coldest months, mean monthly temperature and maximum temperature during the warmest month, said T.V. Sajeev, the invasive species expert who led the KFRI team.

Experts have predicted 70 to 100 per cent possibility of the snails establishing themselves in these districts.

Palakkad has been identified as the most vulnerable district with the study predicting attack in 22 locations. Puthunagaram, Kodumbu, Peruvembu, Mundur, Puthuppariyaram, Marutha Road, Kannadi, Koduvayur, Chittur-Thathamangalam, Mathur, Pirayiri, Vadavannur and Thenkurissi are some of the vulnerable areas in the district.

Parali, Kuzhalmannam, Pallassana and Polppully are also susceptible to the attack.

In Kollam, Neendakara, Thrikkadavoor, Thekkumbhagam and Chavara are at risk, followed by Kochi Corporation area, Chellanam, Thripunithura, Njarakkal, Udayamperoor, Mulavukad and Elamkunnapuzha of Ernakulam district. The other areas in Kochi include, Cheranallur, Thiruvankulam, Nayarambalam, Maradu, Kumbalam and Kadamakkudy. Perumbalam and Panavally are the two vulnerable areas in Alappuzha district.

The researchers surveyed the State from Valiyathura in Thiruvananthapuram to Manjeswaram in Kasaragod in 2010 and located 29 distinct populations of the mollusc. Large populations were found in Konni in Pathanamthitta, Kolenchery in Ernakulam and Muzhupilangad and Parassinikkadavu in Kannur district. The presence of the pest has already been reported from Alapuzha, Ernakulam, Kozhikode, Kannur, Kasaragod, Mahe, Malappuram, Palakkad, Pathanamthitta and Thiruvananthapuram districts. Konni in Pathanamthitta was one of the worst hit areas.

The species has been listed as one of the “100 World's Worst Invaders.” The snails, which live up to six years in favourable conditions, feed on over 500 different plant species. This include some of the economically important plants like cocoa, papaya, peanut, rubber and most types of beans, peas, cucumbers, melons, lichens, algae and fungi. The infestation was found to be intense in areas with high population density. Areas with untreated garbage and places of water logging are their favourite spots, Dr. Sajeev said.

Experts have recommended the use of calcium arsenate and Metaldehyde under expert supervision in areas of high infestation. However, they advise to desist from the use of salt to kill the pest as it alters the soil pH. The meat of the snails thus killed will rot with foul smell. Moreover, the application of salt will become untenable during rainy days, researchers said.

Source: The Hindu, 28-07-2011

Veli breakwater: people fear eco damage

People in the coastal areas of the city are stepping up pressure on the government to ensure adequate safeguards in the construction of a breakwater at the Veli estuary to control flooding in the city.

The Rs.12-crore project, funded by the Jawaharlal Nehru National Urban Renewal Mission, is to be implemented by the Harbour Engineering Department.

The proposal involves the construction of two breakwaters at Veli to prevent the formation of the sandbar at the estuary and keep the river mouth open so as to ensure continuous discharge into the sea. The annual sand bar formation at the river mouth prevents the free flow of stormwater into the sea and leads to water stagnation in the lake that is responsible for the pollution of the water and flooding and waterlogging in the upstream areas up to Thampanoor in the city.

However, the Veli Vikasana Janakeeya Karma Samithi, a local pressure group, fears that implementing the project without adequate safeguards could have disastrous consequences on the environment and the livelihood of the local people.

M. Babu, general convener of the Samithi, says both the Veli and the Akkulam lakes and their feeder canals are choked with tonnes of garbage, toxic waste, and waste water from hospitals, industrial units, commercial establishments, and houses. “Large parts of the water bodies are covered by a thick mass of water weeds and algae. Depletion of oxygen level in the water has led to mass mortality of fish on several occasions, adding to the pollution.”

“The pipe carrying effluents from Travancore Titanium Products Ltd. factory at Kochuveli empties into the sea near the mouth of the estuary. Large quantities of sulphuric acid and other effluents are discharged into the near-shore areas off Kochuveli, Valiaveli, Vettukad, and Kannanthura, having an impact on the fish wealth. Tidal action carries the pollutants up to Kovalam and Perumathura.”

POLLUTION

The Samithi fears that the construction of breakwaters at the mouth of Veli Lake would push the waste materials from Akkulam Lake, the Parvathy Puthanar, Amayizhanjan and Chakka canals, and the Karamana and the Killi rivers directly into the sea. This, it feels, runs the risk of being seen as an easy waste disposal method.

“The near-shore pollution has the potential to drive away fish shoals and deprive traditional fishermen of their livelihood. Also, the solid waste washed out to sea will be deposited on the beaches during high tide making them unfit for tourism.”

In a memorandum to the Chief Minister, the Samithi proposed stern action against the polluters discharging toxic waste into the waterbodies. It also suggested establishment of nets to capture water weeds and plants.

Last September, the Ministry of Environment and Forests had written to the Harbour Engineering Department, prescribing additional terms of reference for the project and a public hearing to be conducted for the project under the provisions of the Environmental Impact Assessment (EIA) notification. It also demanded the preparation of a detailed environmental management plan. The terms of reference insisted that the project did not have an impact on the fishing activities in the area.

Subsequently, the State department sought an exemption from the public hearing process on the grounds that no serious environmental issues were involved.

Source:The Hindu July 25, 2011

Solution to man-animal conflict in Wayanad Sanctuary awaits government initiative

Man-animal conflict is difficult to resolve in conditions existing in Kerala. However, the government is sitting on a proposal which offers a clean solution to the problem in Wayanad Wildlife Sanctuary.

About 10000 people living in pockets inside the Sanctuary are willing to relocate from the conflict zone, leaving the land to the animals. The Central government has already sanctioned Rs. 80 crore for resettlement of nearly one third of the population. However, only 4.5 crore had been released so far.

As per a report of Kerala Forest Research Institute (KFRI), there are 110 settlements having 2613 families in the Sanctuary. Besides, there are 264 families without proper land records. Frequent attacks by wild animals occur in these settlements and settlers and the farmers often retaliate. More than 100 persons have died in attacks by wild animals over the years. Much crop had also been damaged. The elephant deaths in the region are more than the normal because of retaliatory attacks by the people.

The Forest and Wildlife Department spends sizeable sums in building elephant proof trenches, boundary walls and solar power fencing and paying compensation to the victims. The High Court had directed the government to devise a scheme for resettlement of the trapped people in the sanctuary as back as in 1986.

However, action from the part of the government was wanting despite the willingness of the people to relocate. The Central government’s scheme provides for cash compensation of Rs. 10 lakh to each of the families willing to relocate, irrespective of their land holdings. The amount actually does not reflect the conditions in Kerala where the value of land outside the sanctuary going up higher and higher. Yet, the families have expressed willingness to move out.

The KFRI study had deemed 2485 families in 1385 houses suitable for relocation. This would make about 1700 acres available for reversion to forests. The regeneration of forests could be of major gain for the sanctuary and Cauvery basin.

Source: The Hindu 18-07-2011