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Author Topic: Elephant boom in North  (Read 426 times)
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« on: August 25, 2011, 05:02:40 pm »

The results of the first ever National Elephant Survey is currently undergoing a close scrutiny at the Statistics Department of the Peradeniya University. The Department of Wildlife Conservation expects to issue an interim report as the initial step and later a complete survey.

Sri Lankan Elephant (Elephas maximus maximus), is a sub species of the Asian elephant (Elephas maximus). The 53,000 Asian Elephants live in 13 countries in the world whereas its counterpart the 600,000 African Elephants ('Loxodonta africana') live in 37 countries. Among this highly dense elephant population Sri Lankan elephants estimated to be 10% of the world population. According to the historical documents available with the Department of Wildlife Conservation (DWC) the first numbers are recorded from 1900s. Accordingly it is believed that in the early 20th century there could have been approximately 10,000 elephants roaming on this island.

In 1951 the elephant count had been between 1,000 - 1,500 (Norris, 1959). According to DWC administration reports in 1954 the number had been 900 and in 1956 it has dropped to 750 - 800. Again in 1959 the elephant number rises to 1626 (Norris, 1959).

The first survey, more in the nature of a census, conducted by the Department of Wildlife Conservation was in 1993. In this the DWC carried out the survey only in five wildlife regions including the Northwestern, Mahaweli, Eastern and the Southern regions.

The total count was 1967. Second count took place in the Northwestern wildlife region in 2004 in which elephants in Kurunegala, Puttalam, Anuradhapura, Mannar and Vavuniya districts and in the Wilpattu National Park were counted.

Accordingly in the Wilpattu 51 elephants were counted, 143 elephants in the Kurunegala district, 198 in the Puttalam district, 613 in the Anuradhapura district, 71 in the Vavuniya district and 220 in the Mannar district. The third was in the Mahaweli wildlife region in 2008 which showed a 2149 elephant population in the region.

None of the surveys were able to give a clear picture of the nature of the Sri Lankan elephant population. Yet, none of the surveys were able to give an idea on the population trend, distribution pattern, heavily and moderately used areas of the elephants and abundance of tuskers.

The North could be the most neglected area among all the regions across the country in the previous elephant surveys. Out of the total 1553 observation points located countrywide 162 were in the Northern wildlife region.

As peace and safety returned to the Northern Province the Wildlife authorities were able to comb the jungles looking for jumbo herds those were not properly identified for nearly two decades. Particularly Mullaitivu and Kilinochchi were out of reach.

The Northern elephant population can only be figured following the end of the analysis. "Unfortunately, it is more difficult to count elephants in a forest than fish in a pond!" states Professor Charles Santhiapillai - a leading elephant expert involved in the survey - in one of his earlier papers named 'Counting elephants in wild'. Thus the wildlife authorities had to establish a method for proper observation, an accurate counting and analysis system. "The observation part of the survey had a smooth run, particularly considering the weather in many parts of the country.

It really did not hamper our mission," said H.D. Ratnayake, Director General DWC. The water hole counting method fits perfectly to the usual dry weather of this part of the year.

"We fixed a day close to Poya since the moon shines bright during this period. And even in the night we can observe the elephant behavioural patterns," said DWC's Deputy Director for Research and Training S.R.B. Dissanayake.

This was more of a survey of Sri Lankan elephants, rather a count, Dissanayake said. Elephants could be mistakenly recounted or would be miscounted as the subjective area is large.

"These errors will be corrected during the analysis at the Statistics Department of the Peradeniya University," Dissanayake added.

For the survey in the Northern Province the Sri Lanka Army extended their helping hand as a majority of the people in the North have just resettled or still resettling.

Along with the wildlife officials, soldiers of the Army searched the wilderness of the North for elephants in the three-day survey. According to Manjula Amararathne, Deputy Director of the DWC in charge of the Northern Province survey, their discoveries in the Northern unsearched lands are significant.

"There are considerable number of elephants observed in the North yet it is too early to give a conclusion," he added.

"We decided on the observation points after discussing with the villagers now settled in the area as well as with the army personnel. Yet the pattern of elephant movements were different at certain points especially in Mullaitivu, Kilinochchi and Vavuniya North and we had to make changes," Amararathne added.

For example the villagers would say the elephants were frequently seen but during the counting sessions the elephants may go to the next closest water hole. "That is the nature of wildlife," he said.

Yet the elephants rarely altered their daily routine unless more water resources become available in the other parts of the forests, especially due to rain.

Evidence of elephants' presence in the jungles were abundant, especially near tanks and ponds. Elephant dung, foot marks, broken trees and crushed grass were a common sight during the jungle tour.

The low country Dry Zone which is the last bastion of the elephant in Sri Lanka is dotted with thousands of man-made irrigation reservoirs or tanks.

These tanks and their associated grasslands provide excellent habitat for elephants and raise the carrying capacity, said Professor Charles Santiapillai. Commenting on the present survey Prof. Santiapillai said it is a truly gargantuan task for the DWC.

"This is also the first time, the DWC has enlisted the services of an experienced Statistician from the University of Peradeniya to analyze the data so that errors due to double counting of elephants could be reduced as much as possible. In addition to the observers placed at these observation points, the DWC also used a number of mobile patrols to cover large areas.

Therefore the present survey is an improvement on the earlier ones carried out in 1993, 2004 and 2008," he added. As he explained the key to success is being honest with the recording of the data. "As long as the observers record faithfully what they see and not what they imagine, the analysis of the data will be enormously rewarding.

However, when you employ a variety of people, with different educational background to classify elephants according to sex and age, errors are inevitable," said Prof. Santiapillai. Hence it is important that we discard dubious data and concentrate on what appears to be the most plausible and reliable information. As Prof. Santiapillai further explained this survey was planned to get information on the population structure and composition; it was not meant to be a census of elephants. "The latter is almost impossible in Sri Lanka (& elsewhere in Asia) given the dense and tangled nature of the vegetation," he explained.

As Prof. Santiapillai explains, ecologically elephants are dominant herbivores that often have a more profound effect on ecosystem dynamics than top predators such as the lion, leopard or tiger. "High population densities of elephants have a cascading effect leading to a reduction in biological diversity.

Thus in areas where the forest cover is low, and human population density is high, elephants often come into conflict with man.

It is a truism that at any but the lowest density, large wild animals and humans are fundamentally incompatible.

This incompatibility increases rapidly as both animal and human densities increase.

This is happening today in Sri Lanka," he said. Considering past statistics the Department of Wildlife Conservation (DWC) has spent more than 50 percent of its working time and allocated budget to mitigate human-elephant conflict (HEC). In order to bring a sustainable solution to the Human-Elephant Conflict knowing the numbers (of elephants) is crucial.

As Prof. Santiapillai continued to explain, to succeed in elephant conservation, we need to convert the agricultural pest into an economic asset. The human-elephant conflict in Sri Lanka is intense and leads in only one direction: the destruction and eventual elimination of elephants from areas of high conflict, unless people can be persuaded to share their land and their resources with the elephants. The DWC also needs to address the legitimate concerns and aspirations of the poor people who bear the brunt of elephant depredation almost on a daily basis. "The HEC is not simply a wildlife problem, it is also an agricultural problem, and hence it is not fair to blame the DWC every time an elephant is killed by irate farmers.

The two Departments need to work together to seek solutions," Prof. Santiapillai added. He also said that considering the high density of elephants in Sri Lanka compared to other countries of the region is a sign of great work of the DWC.

Sri Lanka has a viable elephant population. It sustains almost 10% of the global Asian elephant population, despite its small size and dense human population, said Prof. Santiapillai. "No other country in Asia offers such rich and diverse habitat for elephants. Elephants, given protection and access to food, water and cover, would increase. The Accelerated Mahaweli Development Programme too has created conditions that promote elephant population growth: year round availability of water and access to cultivated crops that are nutritionally far superior to the forest vegetation. The low country Dry Zone, with thousands of man-made irrigation reservoirs or tanks and its grasslands provide excellent habitat for elephants and raise the carrying capacity," he explained the present situation the Sri Lankan elephant population is facing. Thus the long-term survival prospects for the elephant in Sri Lanka are good provided we control or minimize the human-elephant conflict.

Conserving the magnificent Megaherbivore such as the elephant in Sri Lanka is inextricably linked to the welfare of the people with whom the animal shares the land. Elephant and other wildlife management practices must be carried out as though people matter. "We need to encourage the development of a symbiotic relationship between man and elephant.

Wildlife is a sustainable natural resource. Some argue that all wildlife must be simply protected and not exploited. Others, including me, believe that it is only by allowing people who live in and around areas frequented by wildlife to derive economic benefit from it that they can be led to appreciate the value of wildlife and thus become committed to conserving it," said Prof. Santiapillai explaining the options left for Sri Lanka to mitigate Human-elephant conflict.

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