News
New study finds 33 species of butterflies at Maduru Oya National Park
It could be a butterfly destination as well in the long-term
by Ifham Nizam
(Pics courtesy Praneeth Silva)
An ongoing new study has discovered 33 species of butterflies at the Maduru Oya National Park, which is better known for its wildlife and aquatic birds.
The new discovery could lead to the national park being identified also as a bird location in the long-term.
The research team comprising Prof. Dharshani Mahaulpatha, Praneeth Silva, Tharanga Dassanayake, Dulan Jayasekara, Chamara Prabhath, Wathmini De Silva and Hiranthi Dilrangi Praneeth Silva, a graduate research assistant of the University of Sri Jayewardenepura, expressed optimism that with further research the number of species could increase.
“We have already asked the Wildlife Department to take action against noise pollution as vehicles entering the park frequently is increasing”, the team said.
Though elephants and aquatic birds are popular in the park, it could also be made a popular destination for butterflies, which are fascinating flying insects among lepidopterans and essential bio indicators of ecology and evolutionary studies, the researchers said.
“There are about 19,000 species of butterflies distributed around the world. The Western Ghats and Sri Lanka are a global biodiversity hotspot characterized by a large number of endemic species. With respect to butterfly fauna which harbors 331 species, Sri Lanka has 248 species, including 26 endemics.
Of the total butterfly species in the island, 21 are categorized as critically endangered, while 38 are endangered, 40 vulnerable and 21 near threatened. Furthermore, the conservation status of 29 species of butterflies has not been evaluated due to the lack of adequate data, Praneeth Silva said.
The Maduru Oya National Park extends to the Eastern, Uva and North Central provinces. The national park provides habitats for displaced wildlife and provides refuge to many other native fauna and flora particularly elephants. It is also home to thousands of aquatic birds.
The new study discovered 33 species of butterfly fauna representing five families. The commonest butterfly species is the Common Mormon (Papilio polytes). The butterfly count is high during the wet season (October-February) and low in the dry season (March-September).
Distinct differences in butterfly individual and species counts may be governed by climatic conditions of the area. As butterflies are poikilothermic organism, their biological cycle, activity, distribution and abundance are influenced by monthly temperature and rainfall patterns of the locality.
As the park is situated in the dry zone, the climax community of the area is tropical dry mixed evergreen forests characterized by large trees. However, high butterfly diversity can be observed in shrubs and bushes in the Maduru Oya National Park other than roads, water banks and extensive grassland habitat types. Availability of diverse shrubs and bushes in the park is the main reason for occurring high numbers of butterflies.
They act as host plants for butterflies by fulfilling the main living functions of butterflies to sustain their survival in the environment: facilitate laying of eggs, ensure nourishment and shelter for caterpillars, act as nectar sources for adults.
Praneeth de Silva said a higher number of ‘road kills’ of butterflies was observed due to the impact of vehicular traffic. High speed driving, lack of awareness of foreign and local visitors and poor law restrictions of wildlife authorities are the major governing factors for this critical issue.
The research team appreciated the cooperation of the Maduru Oya National Park staff, especially former park warden M. R. Mohamed and the incumbent warden J. Rathnayake and the Department of Wildlife Conservation for granting permission for the research.
The team also thanked the “Wildlife Circle” Association (Department of Zoology, University of Sri Jayewardenepura) for helping with their field work.
News
Sajith rejects Jt. Opp. protest sabotage claim; SJB TU chief demands remedial action
By Shamindra Ferdinando
Alleging that the Samagi Jana Balawegaya (SJB) had betrayed the joint protest campaign, planned on 24 Sept., at Polduwa junction, against the enactment of the 22nd Amendment without securing public approval at a referendum, SJB trade union leader Ananda Palitha emphasised that SJB and Opposition Leader Sajith Premadasa should take remedial measures to restore the alliance against the NPP government.
Responding to The Island queries, the trade union activist said that he spoke on behalf of the vast majority of the SJBers who felt betrayed by the sudden declaration made by Colombo District SJB lawmaker S.M. Marikkar that they didn’t expect Opposition political parties’ participation, except that of the UNP.
Pointing out that at the behest of Premadasa, MP Marikkar belittled those who had pledged on 17 Sept. to join the SJB-led protest, Palitha emphasised the Opposition leader should be held responsible for restoring the shattered alliance. Palitha warned that the NPP, which was rapidly moving on a dictatorial path, would be the beneficiary of such treacherous actions.
When The Island raised the allegations pertaining to the 24 Sept. protest, Colombo District MP Premadasa said there was no basis for such claims. MP Premadasa called the accusations directed at him ‘rubbish.’
Palitha said that the pathetic failure on the part of the Opposition to genuinely challenge the authoritarian NPP should be examined, taking into consideration the government following an agenda almost 100 percent against the election pledges. Except the much touted anti-corruption campaign, the NPP reneged on all its election promises.
Recalling massive rice imports after having promised to stop the same in the run up to the national elections in 2024, Palitha alleged that the utterly corrupt NPP created an artificial shortage to enable import of large stocks of salt for their benefit. Massive earnings were made through commissions, Palitha said, urging the SJB to reiterate its commitment to the 17 Sept. pledge. According to him, the SJB’s irresponsible action sabotaged the joint Opposition agreement reached on the eve of President Anura Kumara Dissanayake completing two years in Office.
Palitha said that the disruption of a genuinely joint protest, at the last moment, caused irreparable harm to the Opposition. The unexpected eleventh hour declaration made by the SJB upset their efforts to organise a large scale two-day protest on 24 and 25 Sept. Palitha emphasised the responsibility on the part of the SJB leadership and its top management to spearhead an all-out campaign against the government. The former petroleum sector employee said that a strong and transparent campaign could undermine the NPP within as a section of its parliamentary group was deeply dismayed by the current policies and strategies.
Palitha, in his capacity as the trade union leader, invited the Bar Association of Sri Lanka (BASL) to join the trade unions’ protest on 25 Sept. to intensify pressure on the government. BASL President Rajeev Amarasuriya told The Island that they didn’t accept that invitation.
Former SLPP Kalutara District MP Sanjeewa Edirimanna said that the SJB was far more keen to organise a large-scale protest to counter the SLPP’s highly successful Anuradhapura rally held on 12 September than a genuine joint protest against the 22nd Amendment or the government. Edirimanna said that they realised that the SJB would probably join a joint protest campaign only after organising a gathering to counter the SLPP. According to him, the SJB hadn’t been honestly interested in a joint protest campaign. Instead, it sought to resist possible challenges from rival political parties, he said.
An aide to UNP leader and former President Ranil Wickremesinghe said that though the SJB announced they were welcome to join the 24 Sept. protest, the party never received an invitation. The official said that some UNPers joined the protest on their own though the party neither directed supporters to join or boycott the event. As the Janathawadi Joint Opposition decided against participating for want of formal invitations, the UNP, as part of that group, decided not to join the 24 Sept. protest.
News
Police remove Thileepan statue in Jaffna
By Norman Palihawadane
Police have removed a memorial statue of former LTTE member Rasaiah Parthipan, alias Thileepan, from the Thileepan Memorial Square in Nallur, Jaffna, following the conclusion of commemorative events, marking the 39th anniversary of his death.
The statue was removed in the early hours of yesterday (27), a day after the final day of the commemoration was held at the site.
CCTV footage from the memorial reportedly shows police officers removing the statue and taking it away in a vehicle.
Tamil National People’s Front (TNPF) Secretary and MP Selvarasa Gajendran alleged that more than 15 police officers arrived at the site, without prior notice, entered the premises wearing footwear, and forcibly removed the statue.
The reason for the removal and the legal basis for the police action had not been officially announced as of yesterday.
Thileepan, a former political wing leader of the LTTE, died in September 1987, after undertaking a hunger strike in Nallur, while making several demands of the Indian Government.
The memorial events, marking the 39th anniversary of his death, were held at the site on Saturday (26). A statue had been erected at the location in connection with the commemoration.
News
NPP, Lal agree to disagree
By Shamindra Ferdinand
NPP Executive Committee member Lal Wijenayake said that he would continue with the ruling party though he disagreed with the 22nd Amendment, sans a referendum. That position wouldn’t be changed, lawyer Wijenayake said, adding that he would continue to support whatever action taken by the Bar Association of Sri Lanka (BASL) to highlight the damaging consequences of the new amendment.
Wijenayake said so in response to The Island query whether he could continue with the NPP after having opposed the 22nd Amendment. When pressed for clarification, Wijenayake revealed that he received an opportunity to discuss the issue at hand with NPP and JVP leader Anura Kumara Dissanayake.
Declaring that he couldn’t reveal what transpired in his meeting with President Dissanayake, Wijenayake said the status quo would remain.
“They wouldn’t seek my removal from the party,” he said, adding he would remain in the Executive Committee, regardless of his unchanged position on the 22nd Amendment. Wijenayake ruled out the possibility of him joining joint Opposition protests against the government.
NPP General Secretary Dr. Nihal Abeyseinghe told The Island that those who urged the ruling party to allow its members to vote, according to their conscience, should know the entire government parliamentary group accepted the need for the 22nd Amendment. Yes, they voted according to their conscience, the Kalutara District lawmaker said, underscoring that regardless of the split in the NPP over the 22nd Amendment, the vote proved otherwise.
Of the 159-member NPP group, 158 voted for the controversial amendment where three Opposition MPs skipped the vote. Ravi Karunanayake and Faizer Musthapha of the New Democratic Front (NDF), led by Ranil Wickremesinghe, were among them. The other absentee Nayana Wasalathilake represents the SJB.
The NDF, which contested under the ‘Gas Cylinder’ symbol secured, five seats at the last parliamentary polls. The remaining three members, Anuradha Jayaratne, Rohitha Abeygunawardena and Chamara Sampath Dassanayake, voted against the 22nd Amendment.
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