Showing posts with label Bangalore. Show all posts
Showing posts with label Bangalore. Show all posts

Monday, January 21, 2013

A lilac lovely in the sky

MARIANNE DE NAZARETH
A brush with history: With a butterfly Photo: Nitin R.
A brush with history: With a butterfly Photo: Nitin R.


Nitin couldn’t believe his luck when he spotted the Lilac Silverline at Hesaraghatta Lake; especially since the last sighting of this butterfly was in 1903

Most undergraduate’s only concern is whether they have the required percentage of attendance and giving in their assignments in the nick of time. And then, you have Nitin R. who is doing his second year BSc at St. Joseph's College, whose entire life revolves around his course. “I am interested in butterflies, dragonflies and wildlife photography,” says Nitin.

With great excitement, Nitin reveals the story of a sighting of a rare butterfly and the subsequent photograph. “I had been to Hesaraghatta Lake on the December 23 as a part of the team which was doing a rapid impact assessment study on the Hesarghatta Habitat. When I initially saw Silverlines there, I thought they were the Common Shot Silverlines (Spindasis ictis). But later I observed that these Silverlines had a different flight pattern and perching preference. So I photographed one male and sent it to Krushnamegh Kunte of GKVK, Bangalore. He identified it as the Lilac Silverline (Apharitis lilacinus) and told me that the last known sighting was in 1903.”

According to Nitin, this butterfly is known to frequent open grasslands and fields and there is no particular habit preference that has been established by now. So the chances of spotting this butterfly, is more on open grasslands, in the morning.

Nitin goes on to explain that this butterfly was first described by Moore in 1884, based on a single male specimen from the collection of the Indian Museum, Calcutta whose origin was unknown.

The description according to Marshall and De Niceville (1890) is that the upperside of the male butterfly is marked with pale iridescent blue. And, the colour off the ground on the underside varies a good deal, with some a primrose-yellow and others inclined to ochre, blending into brick red.

Seshadri K. S., an ecologist based at ATREE, Bangalore, says, “Even as there is dearth of knowledge on this rare find, the Hesaraghatta Tank bed, where it was observed is already at risk. Every weekend, one can see up to 15 photographers driving on the tank bed in cars. This invariably leads to crushing of the host plants for butterflies.”

Kunte, PhD Ramanujan Fellow and Reader at National Centre for Biological Sciences (NCBS) Tata Institute of Fundamental Research (TIFR), says, “There are many butterfly species that had historically been reported as rare in places such as Bangalore, the Nilgiris, Sikkim and the Khasi Hills. Many of these species have not been recorded in a long time and few people know what they look like. One such species was the Lilac Silverline, which was reported from Bangalore in several old books. So Nitin’s records are a pleasant surprise and I am very glad that this tiny and beautiful butterfly has persisted.

Kunte says that these sightings prove that there still is a breeding population of this rare species, which is important because this species is legally protected in India under Schedule II of the Wildlife (Protection) Act.

He hopes that local NGOs, nature enthusiasts and the Karnataka Forest Department will come together to protect this habitat for the rare birds and butterflies that are found there.

Origonal Post

Friday, January 4, 2013

KV students set up butterfly park

Inspired by photographs shot by a teacher, they planted several host plants to draw the beautiful insects to their school sprawled on 500-acre campus at Jalahalli

Unlike most children who are inclined towards games and gizmos, a bunch of students of Kendriya Vidyalaya at Jalahalli have set up a park to conserve butterflies. They took their cue from some beautiful photographs shot by their teacher Ashok Sengupta. 


They have planted several plants that attract butterflies on a five-acre portion of the school premises, leaving even the forest department impressed.
The school had set up a butterfly club in 2009, but it was meant only for the documentation of butterflies, rather than conservation. Principal G P Selvam told Bangalore Mirror, “The club was started owing to Ashok Sengupta’s interest in the field.
“But 2012 was different. Many students evinced interest and began exploring scientific aspects of the butterfly and its conservation. This prompted us to take up butterfly conservation in a big way.”
The school is located on a 500-acre campus of the Indian Air Force (IAF). “Over the years, there has been a steady increase in the butterfly population on the campus. We decided to provide them with suitable conditions to reproduce in a scientific way,” explained Sengupta who is also a member of the Travancore Natural History Society (TNHS).
Butterflies’ reproduction is plant specific. Each species lays eggs on certain plants, called host plants. The students and faculty realised that the campus lacks sufficient number of host plant species.&nbsp
“We sourced host plants from the forest department, which functions next to our campus. We planted more than 25 species of host plants. As rains and climatic changes could damage the eggs, we collect them and keep it in boxes till they all hatch and develop into larva. Once the butterflies come out, we release them into the garden,” Sengupta told   Bangalore Mirror.



These efforts have resulted in the campus having more than 80 species of butterflies.
“Students have been divided into various teams. As and when they get time in the middle of their school time-table, they rush to the garden and help maintain the plants. This apart, they also get an opportunity to understand the life cycle of butterflies.
“Enriched with this knowledge, our students have taken part in several workshops and conferences with entomologists of the University of Agriculture Sciences (UAS). They have even made presentations at workshop conducted by the forest department,” Selvam told Bangalore Mirror.

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Friday, January 27, 2012

Greens worried over rising footfalls in Lalbagh

The increasing number of visitors to the Lalbagh Botanical Gardens during flower shows has become a cause of worry for the greens and some officials from the Horticulture department who are now contemplating a change in the venue. 



The Mysore Horticulture Society, the organiser of the Republic Day flower show at Lalbagh, may be hoping of a good profit by the end of the flower show this time, but many of them are of the opinion that the show should be stopped at the historic garden  for its good. The Lalbagh Botanical Gardens, with a history of over 250 years, is home to several rare plants and bird species and is the most preferred destiny for bird watchers in the concrete jungle that Bangalore has become over the years. The place, a favourite among morning walkers and joggers is now a subject of discussion due to the nuisance caused by the public at the flower show.

“It has turned a nuisance not only because of the increasing number of visitors, but also due to the garbage strewn everywhere, around the garden. There should be a change in the venue,” says Suresh Kumar, a botanist who visits the show every year.

Many bird watchers and nature lovers too have been voicing the same concern. Dr M B Krishna,  a City-based ornithologist says, “Let them shift it to other agriculture or horticulture areas. There will be better participation by the people. The number of people visiting this place is alarming. On January 26, we heard as many as 2.5 lakh visitors came to Lalbagh and this place is not designed to take this load,” he said.

M Sunil Kumar, an environmentalist, expressing his shock over the sea of people, who thronged the garden, and the piles of garbage around it, said that shows of these kinds should not happen in Lalbagh and the place designated as botanical garden, should be retained as one.

“It is not an amusement park. It is shocking to see the historic place, including the rock (Peninsular Gneiss of the region, dated 2,500 to 3,400 million years) is full of litter,” he said. Even some of the Horticulture department officials, on condition of anonymity, shared similar view saying that the show should be held at more than one place - by identifying a few BBMP parks.

Lalbagh officials said that more than six lakh people visited the park during this flower show. While 2.3 lakh people visited on January 26, it was 1.2 lakh last Sunday.

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Wednesday, July 27, 2011

Karnataka Wildlife Board launches website


BANGALORE: Now you can post your comments and suggestions, express your opinion, participate in wildlife conservation and start discussion groups about any national park or wildlife sanctuary in the state, because, for the first time in the country, a State Board for Wildlife has developed and launched its website.

Even the National Board for Wildlife, which is chaired by the Prime Minister, does not have its own website.

This is a first of its kind in the country and gives the general public a platform to express their opinions.

The idea, conceived by Anil Kumble, Vice Chairman of the board, has details of all the protected areas in the state, wildlife laws, details of forest staff who have shown exemplary courage in saving our wildlife, the importance of every national park and wildlife sanctuary in the state and other such details. It also provides details about dos and don’ts in the protected areas, the best times during which to visit the area, accommodation facilities and so on.

“We would like to encourage more public participation in wildlife conservation through this website. Our vision is to save wildlife and wild lands of Karnataka through policy, science and outreach, and further democratise the way protected areas are managed,” says Anil Kumble.

Website http://www.karnatakawildlifeboard.org/

Friday, July 1, 2011

The butterfly effect

Author(s): Sayantan Bera
Issue: Jul 15, 2011
As India continues to lose its rich butterfly diversity at an alarming rate, a handful of individuals work towards creating newer habitats
imageArjan Basu Roy at his laboratory in Kolkata (Photo: Sayantan Bera)If you happen to see a swarm of butterflies flying above the terrace of your office in the crowded Bengaluru city, count yourself lucky. You are witness to the largest annual butterfly migration in southern India. Every year between October and December, swarms of Dark Blue Tiger and Double Branded Brown Crow fly through the Bengaluru-Mysore area to their summer homes in the evergreen forests of Sahyadri in the Western Ghats. There they crowd in dense congregation for weeks, court and breed.
The Western Ghats, along with the Himalayas, the country’s north-east region and the Andaman Islands, are home to butterflies unique to India. With 1,800 known species and subspecies, the country boasts an impressive 10 per cent of the global biodiversity in butterfly.
Butterflies are crucial pollinators and their contribution to global agriculture is valued only next to honey bees. A fall in their population would also lead to a fall in their predator population like the wasps, spiders and birds.
A Harvard butterfly specialist
According to Krushnamegh Kunte, India’s leading lepidopterist and a post-doctoral fellow at Harvard, habitat destruction and deterioration are the foremost threats to butterfly population. “In India, widespread and excessive use of pesticides and herbicides has exacerbated the problem,” he says. Several intended or unintended human interferences, such as agriculture, fires and dams, alter forest structure and plant composition, or completely destroy butterfly habitats. This has had the most serious impacts in the eastern Himalayas and northeastern India, where butterfly habitats are vanishing at an alarming rate.
  KRUSHNAMEGH KUNTE  
  Widespread and excessive use of pesticides and herbicides in India has exacerbated the problem  
 
  — KRUSHNAMEGH KUNTE,
India’s leading lepidopterist
 
 
 
Add to this the thriving illegal trade in butterflies. High altitude species like Kaisar-I-Hind, Bhutan glory, Pale Zezebel and Ladakh Banded Apollo can fetch up to Rs 20,000 in the international market. They are used by collectors to adorn greetings cards, paperweights and jewellery. One can also buy rare species over the Internet. A visit to www.insectdesigns.com can be chilling. Taking advantage of the fact that in most countries other than India, trade in butterflies is legal, the site makes available different varieties priced between US $2 and $330. In India, several cases were reported in the last decade where researchers and tourists from abroad were caught with huge consignments of dead insects, including butterflies. In 2008, for instance, two Czech nationals were caught with 2,000 specimens of larvae and insects collected from the Singalia National Park in north Bengal. The biodiversity hot spots of eastern Himalayas and the Western Ghats are the prime hunting grounds.
In April 2008, on a field trip to Sikkim, Kunte rediscovered the Scare Jester Butterfly—a species protected under Schedule I of the Wildlife Protection Act implying it enjoys the same level of protection as the tiger. The species was not sighted in the last 90 years and for him the rediscovery emphasised “the need to conserve hitherto unprotected forest fragments as biodiversity parks”. Kunte believes common people can support butterflies. “A native sapling could be planted that butterflies use either as a larval host plant or as a nectar plant—lemons, mangoes, any native caper, pipevine, ficus (relatives of figs). People could maintain a small unattended patch in their gardens or neighbourhoods where wild plants are allowed to grow.”
If you are more ambitious and hardworking, and have some space, you could develop an exclusive butterfly garden, much like what Jyoti and Yashodan Heblekar have done in Goa or Arjan Basu Roy has done in West Bengal.

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Friday, November 12, 2010

Butterflies kiss Bannerghatta goodbye

From 20 species to 6 – blame the exodus on the pollution, climate and lack of funds
Niranjan.Kaggere@timesgroup.com
Posted On Friday, November 12, 2010 at 08:09:56 AM
How’s this for irony? The country’s first Butterfly Park at Bannerghatta, set up with much fanfare to conserve various species of these flitting beauties, is seeing a drastic drop in their numbers.




Collection at the Butterfly Park in Bannerghatta does not match the costs incurred. Weekdays are dry days and on weekends, the maximum revenue earned ranges between Rs 3,000 and Rs 4,000

While it was dwindling green cover that made sparrows take flight from the city, environmentalists attribute the butterfly problem to pollution. Spread over 7.5 acres at Bannerghatta Biological Park, it had close to 20 species of butterflies when it was inaugurated in 2006. But now, there are only about six species left. The Crimson Rose, Common Emigrant, Staineyar Red Tarret and Common Lime Butterflies are some of the survivors.
Going, going...Tourists would be drawn to the nearly 1,000 butterflies creating a riot of colour inside the polycarbonate dome a few years ago but it’s now difficult to find even a few hundred.

“Despite our staff going around the forest the entire day, scouting for butterflies, it is very difficult to get them. However, with great difficulty we have managed to get three to four different species with 60-70 butterflies,” said Krishna Kumar B, BBP deputy director.

The whys and whereforesOne reason for the fall in numbers is the climate. “The butterfly life span is about a week and they are active only when there is ample sunlight. So, the constantly cloudy skies and incessant rains don’t help the butterfly population,” said Krishna Kumar.

Harish Bhat, an ecologist and biodiversity expert at the Centre for Ecological Sciences, Indian Institute of Science, adds, “Butterflies are highly seasonal and even a slight change in the climatic condition will affect them. They can’t even fly when humidity levels are high. However, they are likely to return, especially on city outskirts, once the rainy season gets over.
Increased vehicular traffic close to the park and rising pollution levels have also taken a toll.


Rising cost, falling incomeMaintaining the park is also becoming increasingly difficult. Blame it on falling income and rising expenditure coupled with official apathy. For instance, though flowers are crucial for butterflies to thrive, the park is full of leafy plants and shrubs.

Also, there are about 15 staff attached to the butterfly park, including cleaners and technicians who breed butterflies at the specially designed laboratory there. But paying them is not easy since the collection at the park does not match the costs incurred. The revenue goes up to Rs 3,000 to Rs 4,000 only on weekends while weekdays are dry days.

“Since the entire venture is non-commercial, there is no separate budget and everything is dependent on the revenue,” explains Krishna Kumar.

Flying away
» Crimson Rose
» Common Crow (Missing)
» Common Emigrant
» Common or Striped Tiger (Missing)
» The Red Pierrot
» Southern Duffer (Missing)
» Lime Blue
» Malabar spotted flat (Missing)
» Common Jay (Missing)
» Red Helen (Missing)
» Common Rose (Missing)

Story