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Study supports theory that dragonflies migrate across the Indian Ocean

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Can dragonflies migrate thousands of miles across the Indian Ocean, from India via the Maldives to Africa, and back again? An international research team led by Lund University in Sweden has used models and simulations to find out if the hypothesis could be true, said a report filed by Phys.org yesterday.

It said: In 2009, marine biologist Charles Anderson put forward a hypothesis after observing globe skimmer dragonflies (Pantala flavescens) on the Maldives, that had flown in from what he assumed was India. When they flew off again, it was towards East Africa. Now, 12 years later, a group of researchers decided to investigate his claim.

Globe skimmer dragonflies are too small to be fitted with transmitters. Instead, the researchers examined its physiological aspects and calculated how long a globe skimmer dragonfly could stay airborne using the energy that can be stored in its body. In addition, the researchers used meteorological wind models to determine if there are winds that can facilitate the migration in both directions.

“Our study shows that this migration from India to East Africa is actually possible. However, the globe skimmer dragonfly can’t manage it using only the fat it can store in its body. It also requires favorable winds and these are present during certain periods of the year,” says Johanna Hedlund, a biology researcher at Lund University.

According to the simulated migration experiments using wind models, about 15 percent of the dragonflies could manage the migration from India to Africa in the spring. In the autumn, 40 percent could make the same journey in the opposite direction.

Johanna Hedlund and her colleagues consider it impressive that dragonflies can do this at all. Even more impressive is the fact that the globe skimmer dragonfly migration across the Indian Ocean is the longest in the animal kingdom in relation to an animal’s size.

“We have got a lot closer to solving the mystery of how a tiny dragonfly, which only weighs 300 milligrams, can cross 2,000 kilometers of open sea,” says Johanna Hedlund.

Other animals also rely on favorable wind conditions when they migrate. Two examples are the amur falcon and the Jacobin cuckoo, which also fly across the Indian Ocean. The researchers behind the study in question warn that climate change may affect the chances of these birds and the globe skimmer dragonfly in the future. There is a risk that wind patterns will change when the water surface gets warmer.

The researchers consider that the study is important in several ways. It creates an understanding of the distances that one of the animal kingdom’s smallest migrants can cover, it increases knowledge about how migratory animals can spread diseases, and it also contributes to ecosystem services at widespread locations around the world.



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India should be kept out of PC polls, matters related to 13 A – Mano

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Mano

Leader of the Tamil Progressive Alliance (TPA), Mano Ganeshan, MP, said that India shouldn’t intervene here regarding the long-delayed Provincial Council polls.

The former Yahapalana Minister of National Co-existence, Dialogue and Official Languages (2015-2018), Ganeshan, who represents the main Opposition Samagi Jana Balawegaya (SJB) in the current Parliament, stressed that New Delhi’s intervention wouldn’t do any good for them or for us.

Lawmaker Ganeshan said so when The Island asked him whether the TPA would ask India to pressure the NPP government to conduct PC polls, last held in 2014, during Mahinda Rajapaksa’s second term. Ganeshan said: “India shouldn’t get involved in the issue at hand . Such a strategy is also in their interest, particularly in the context of the evolving global order. India should not be perceived as a pro-Tamil state, but rather as a state that supports Sri Lanka as a whole.”

Ganeshan said that the Indian state bears a moral responsibility in this matter. “That responsibility arises from the fact that India’s diplomacy and military intervention played a decisive role in neutralising the Tamil armed struggle in Sri Lanka. Although India’s mission remained unfinished, it nevertheless lost nearly two thousand soldiers in the process. There was also a prelude to this involvement, when Tamil militant groups received training in India. Consequently, the Indian connection became a sensitive issue for both the Sinhalese and Tamils of Sri Lanka.”

But, whatever had happened, the national issue should be settled among us. ” The solution must be found and settled within Sri Lanka itself. We do not need Western interventions in this regard.”

” In recent years, whenever we in the Tamil Progressive Alliance (TPA) have met Indian dignitaries—including the Prime Minister, the External Affairs Minister, and, most recently, the Vice President—the subjects of the 13th Amendment and Provincial Councils have never featured on our agenda.”

The 13th Amendment is part of Sri Lanka’s Constitution. Therefore, it is for Sri Lankans themselves to decide whether to retain, improve, fully implement, reform, or even repeal it, Ganeshan said.

MP Ganeshan found fault with those who represented the Northern and Eastern provinces for failing to utilise the goodwill and influence India enjoyed with successive Governments of Sri Lanka to pursue an amicable political settlement. The parliamentarian said that they should acted after the end of the war in May, 2009. Unfortunately, they failed to effectively use the Provincial Council framework to consolidate their political position and advance further, thereby earning the confidence of both India and successive Sinhala-majority governments, MP Ganeshan said.

Responding to another query, MP Ganeshan said: “

We should keep the ethnic issue separate from bilateral relations with India, while deepening economic connectivity and cooperation on the basis of mutual benefit and a win-win partnership.”

By Shamindra Ferdinando

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US boost for SLAF

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Helicopters from the US. (Pic courtesy SLAF)

Sri Lanka has taken delivery of 10 TH-57 ‘Sea Ranger’ multi-role helicopters provided by the United States of America to the Sri Lanka Air Force. Air Forces headquarters said that the helicopters arrived here by sea.

The SLAF has said: “The arrival of these aircraft marks a significant milestone in the longstanding defence cooperation between Sri Lanka and the United States and represents a valuable contribution towards enhancing the operational and training capabilities of the Sri Lanka Air Force.

“The helicopters are currently undergoing configurations and technical preparations at SLAF Base Ratmalana. Following the completion of requisite inspections, acceptance procedures and test flights, the aircraft will be inducted into service and deployed for operational duties.

“The TH-57 fleet is expected to significantly strengthen the Air Force’s aviation training capacity while enhancing the ability to support a broad spectrum of national requirements. The aircraft will primarily be employed for pilot training, humanitarian assistance and disaster response (HADR) operations, search and rescue (SAR) missions and other public service commitments undertaken by the Sri Lanka Air Force.”

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TPA demands House committee to probe Tilvin’s claim PC polls cannot be held due to fund constraints

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Harsha

Referring to the recent declaration made by JVP General Secretary Tilvin Silva that the Provincial Council elections couldn’t be held this year as funds allocated for that purpose were utilised to provide Ditwah cyclone relief, Tamil Progressive Front (TPA) leader Mano Ganeshan, MP, has asked Dr. Harsha de Silva, MP Chairman, Committee on Public Finance, to inquire into the issue at hand and take action deemed appropriate.

The text of MP Ganeshan’s letter: “I write with reference to a statement reportedly made by Tilvin Silva, General Secretary of the Janatha Vimukthi Peramuna (JVP), the principal constituent party of the National People’s Power (NPP) Government.

According to media reports, Silva stated, in substance, that funds allocated and set aside for the conduct of Provincial Council Elections had been utilised by the Government for disaster-rebuilding and related purposes.

While he is reported to have made further remarks, I confine my attention to the above statement, which raises a serious matter concerning public finance and parliamentary oversight.

To the best of my knowledge, Parliament has not approved any transfer or reallocation of funds, earmarked for Provincial Council Elections, to any other expenditure head or purpose. If the statement, attributed to Mr. de Silva, is accurate, it may indicate that such funds have been utilised without the requisite parliamentary authorisation.

In view of the above, I respectfully request that the Committee on Public Finance inquire into this matter and ascertain whether any transfer, reallocation, or expenditure of funds allocated for Provincial Council Elections has occurred in a manner inconsistent with parliamentary approval and financial regulations.

I would be grateful if the Committee could examine the facts and take any action deemed appropriate within its mandate.”

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