Hvar's Butterflies

Marion Podolski casts her expert artistic eye over Hvar's butterflies.

Hvar butterfly at work, July 2016 Hvar butterfly at work, July 2016 Vivian Grisogono

Butterflies always seem so fragile, so transient. So it came as quite the surprise when I read that (a) there are butterfly fossils dating back around 56 million years, and (b) the Painted Lady appears to hold the record for the longest return migration, from Africa to the Arctic circle and back!

Painted lady

Vanessa cardui ~ Painted lady ~ Stričkovac

This photograph was taken at Vorh on Hvar, altitude around 500 metres. European ivy is known for having flowers high in nectar, and was swarming with butterflies and bees in September. The Painted lady migrates from North Africa and the Mediterranean northwards in the springtime, and southwards in the autumn. The 9,000 mile round trip between tropical Africa and the Arctic circle may take as many as 6 generations! Was this butterfly on a refuelling stop for its Autumn migration?

This summer I’ve been more aware of butterflies on Hvar, possibly due to my recent interest in wildflowers. It’s a good sign, as flowers and butterflies mean a healthy ecosystem. Though sometimes they were nowhere near any flowers!

Red admiral

Vanessa atalanta ~ Red Admiral ~ Ljepokrili admiral

As I was sitting on the Soline beach near Vrboska, painting with my art group, this visitor was very interested in my paintbox! Luckily I had my phone to hand, and managed to capture the moment! And as I didn’t really feel that paints were proper nourishment, being toxic and all, I closed up the box, so it decided to try some wine instead!

Red admiral likes a glass of wine

My Red admiral likes a glass of wine!

While some (adult) butterflies live only for a few days, other species survive for almost a full year. Those living longer can feed on nectar from flowers, and they are in fact important pollinators for some kinds of plants. Although they can’t carry as much pollen as bees, they are able to take it over longer distances. They’ll also sip water (and wine!), are sometimes  attracted to dung, rotting fruit, or the salt in human sweat for other essential minerals and nutrients. Their “taste” receptors are apparently located on their feet, so they can determine whether a leaf is suitable for laying eggs on (ie the caterpillar kids can eat it!)

Red admiral underside

Red admiral underside

I spotted this Red admiral near the peak of Sv Nikola, up in the high country (628 metres). Good view of the underside of the wing. Red admirals also migrate, spending summer in northern Europe, and winter near the Mediterranean.

In Croatian, a butterfly is called a leptir, for once easy to remember as it’s clearly related to lepidoptera (from the ancient Greek  lepís=scale + pterón=wing). It’s less certain why the English saw any association with butter, though the name has been around for some time in old Dutch and German. Were there only yellow butterflies in northern Europe, I wonder?

Two-tailed pasha also going for my wine

Charaxes jasius ~ Two-Tailed Pasha ~ vještica

Another butterfly that was keen to share our wine was this Two-tailed Pasha with exceptional taste at restaurant Laganini on Palmižana! It did, in fact, take a dive headfirst into my glass and had to be rescued at the expense of the wine!

Two-tailed pasha

Two-Tailed Pasha enjoying some lemon sorbet

A fine butterfly, and a great poser with his proboscis stuck into a drop of lemon sorbet (with vodka and prosecco) for a good long drink! Two-tailed pashas produce two generations in a season, flying May/June and August/October. Clearly, they also like a drink!

Two-tailed pasha underside

Two-tailed pasha underside and clear view of head

The beautiful colour of butterfly wings is due to the scales. While the dark blacks and browns are melanin pigments, and yellows come from uric acid and flavones, the other bright blues, greens, reds and iridescence are all caused by the structure of the scales and hairs.

Cardinal

Argynnis pandora ~ Cardinal ~ Pandorin šarenac

Meanwhile, back at the popular ivy flowers, was this lovely Cardinal which is a fairly common butterfly around southern Europe from April to September. Sadly the photograph doesn’t quite do justice to the shimmer of that pale green colour. Very pretty in real life!

Cardinal in Stari Grad

Cardinal in Stari Grad

The second Cardinal was spotted in a garden in Stari Grad. Good view of the antennae, and the proboscis stuck into the flower. It looks to have only 4 legs, but that’s apparently normal for some types of butterflies, the front two legs are much reduced.

Wall brown

Lasiommata megera ~ Wall Brown ~ mali pjegavac

Hmmm, the field notes say the Wall brown is very alert and difficult to approach for taking photos – well, that’s certainly true! This guy was spotted beside the path on the way up to Sv Nikola, and this is the best photograph I could manage!

A recent (2011-13) study of butterflies on Hvar recorded 49 species, some of which are very rare within Croatia. All in all, 57 species have been recorded on Hvar, giving it 4th place among the islands for butterfly diversity. I have a long way to go to spot all those!

“Happiness is a butterfly, which when pursued, is always just beyond your grasp, but which, if you will sit down quietly, may alight upon you.”
~ Nathaniel Hawthorne

© Marion Podolski 2016

More about Croatia’s butterflies:

Project Noah: Butterflies and Moths of Croatia

Euro Butterflies by Matt Rowlings

Wikipedia list of butterflies and moths in Croatia

Annoted list of Croatian butterflies with vernacular names (PDF file for download)

Contribution to the knowledge of the butterfly fauna on the Adriatic island of Hvar, Croatia

This article has been reproduced with kind permission from Marion's blog Go Hvar, Ramblings about a far island. Visit the blog for all kinds of information about Hvar, from artistic to epicurean!

Nalazite se ovdje: Home Novosti iz prirode Hvar's Butterflies

Eco Environment News feeds

  • Senior climate figures warn North Sea drilling would encourage fossil fuel exploitation by developing countries

    Opening new oil and gas fields in the North Sea would “send a shock wave around the world”, imperilling international climate targets, undermining the UK’s climate leadership and encouraging developing countries to exploit their own fossil fuel reserves, experts have warned.

    The UK government is under stiff pressure from the oil industry, the Conservatives, Nigel Farage’s Reform UK party, some trade unions and parts of the Treasury to give the green light to new oil and gas fields, despite clear evidence that doing so would not cut prices and would have almost no effect on imports.

    Continue reading...

  • Sandra Laville has been reporting on England’s sewage crisis for years. She answered your questions on the water privatisation scandal.

    Guardian environment correspondent Sandra Laville’s reporting on the sewage crisis in English water has helped to expose a scandal of privatisation that has created a swell of fury across the political divide.

    Sandra has now finished answering your questions. Read the Q&A and join the discussion below.

    The government has put the cost of renationalising water at £100bn. But this is a disputed figure. Academics working with the People’s Commission on the Water Sector say this figure is ‘serious scaremongering created on biased evidence’ which was paid for by water companies. It is based on the Regulatory Capital Value of companies as determined by Ofwat, not the” true and fair value in law”, which reflects losses from market failures, like the cost of pollution or the monopoly profits taken by shareholders and banks.

    The route to renationalisation could come via the system set up legally when the companies were privatised. Under the law companies can be put into special administration if they are unable to pay debts, if they breach licence obligations, such as on sewage pollution, or failing to supply water, and if it is considered in the public interest to do so. Special administration is a form of temporary renationalisation.

    This is the million dollar question! While tackling separation across the whole network at once is considered too disruptive and costly, particularly in urban environments, the chartered institute of water and environmental management says moving towards separated systems is their key focus to address urban pollution and storm water sewage releases. New developments, for example, are now mandated to have separate pipes for foul wastewater and surface water run off.

    They also want to see the increased use of sustainable drainage systems like water butts, and storage basins for existing properties, to reduce the amount of runoff into the system. Keeping gardens rather than paving them over, and creating so called sponge cities is also key to tackling pollution.

    The UK was described as the dirty man of Europe back in the 70s and 80s, due to levels of pollution. For example in coastal towns there were no water treatment plants to treat sewage, raw sewage was just pumped and dumped into the sea. It was only when the EU directives came in that the clean up began. Chief amongst these was the Urban Wastewater directive, the Water Framework directive, and the Bathing Water directive.

    Since leaving the EU there have been fears that these pieces of legislation could be watered down. James Bevan, as CEO of the Environment Agency, talked about changing the Water Framework Directive, essentially to make it easier for rivers to pass tests for chemical and biological health. Currently no river is rated as in good overall health under the WFD where rivers have to pass both chemical and biological health tests.

    Continue reading...

  • Like so many flying insects, these essential pollinators are suffering because of habitat loss and the overuse of chemicals. Here’s how to give them a healthier, happier home

    We know about honeybees and bumblebees, but most of the UK’s bees are neither: they’re solitary bees, loners who come in a dizzying range of sizes, colours and varieties – more than 240 species. Have you heard, for instance, of the hairy-footed flower bee? “They’re one of the first bees to emerge each year,” says Laura Larkin, the chief conservation officer at Buglife. “The males have got fantastic little fluffy bits on their feet.”

    How about leaf-cutter bees, which chomp “a perfectly circular hole” out of leaves to build their nests? Or bright-orange tawny mining bees, wool-carder bees, ivy bees? “There are so many of them and I’m still learning,” says Kate Bradbury, a wildlife gardener, writer, bee lover and the author of One Garden Against the World. “They’re just great – there’s a solitary bee for every occasion.”

    Continue reading...

  • Taking sand from the Nigerian city’s lagoon to supply a building boom harms more than fish – it affects the entire food chain, erodes coastlines and is depriving fishing communities of their livelihoods

    Before dawn, when the noise of Lagos’s danfobusesfills the air and generators rumble to life, the city’s lagoon is already stirring. Not from fish splashing or canoes gliding, but from the long suction pipes of the dredging machines, pulling up the lagoon bed and spitting out wet sand that will be used in the construction of high-rise blocks, housing estates and flyovers.

    Sand dredging is regulated by the Lagos state government and the waterways authority but in a city of more than 20 million people, where sharp sand has never been in higher demand, not all dredging is being done by the book.

    Dredging leaves its mark on the landscape along the shores of the Lagos Lagoon in Epe

    Continue reading...

  • Shahid Bagheri leaking fuel towards Hara mangrove forest, home to migrating birds and endangered turtles

    An oil slick from a stricken Iranian ship threatens to contaminate one of the Middle East’s most important wetlands, satellite image analysis suggests, making it one of a number of spills posing a risk to the livelihoods of coastal communities in the Gulf.

    The Shahid Bagheri, a drone carrier, began leaking heavy fuel oil in Iranian territorial waters near the strait of Hormuz after it was hit by a US warplane in the first few days of the US-Israel attack on Iran.

    Continue reading...

  • Our writer travels to the eastern Andes in search of one of Ecuador’s most elusive birds

    I’m out of breath – and not just because I’m desperate to see one of Ecuador’s most elusive birds, the rufous-bellied seedsnipe. To have any chance of success, I’ve come to Cayambe Coca national park in the eastern Andes. At 4,400 metres (14,400 feet), this is the highest altitude I have ever experienced.

    Fortunately the skies are clear, the sun is shining, and my guide, Juan Carlos, is optimistic. I don’t tell him I have a track record of missing nailed-on certainties.

    Continue reading...

  • Woolton Hill, Hampshire: I visit an old friend in an old haunt, where a small herd of Shetlands has been set to work

    Thirty years on from the impassioned action of the road protests, the Newbury bypass soars above us on the old railway embankment. I can’t entirely accept it even now, having been part of the campaign. Today, walking in The Chase, the nature reserve that lies adjacent, the roar of traffic slips into a background hum, aided by other memories I’ve built up here.

    Many of those have been with my dearest friend, Sarah. She volunteers as a “cow watcher” for the National Trust, and I’ve come with her as she checks their whereabouts and wellbeing. They are conservation grazers; keeping coarser scrub in check, spreading seed and poaching areas, and encouraging greater biodiversity and plantlife.

    Continue reading...

  • The shock of the oil crisis is playing out on Australian streets, where bike sales are up and cycle lanes are busier

    Before the 1970s global oil crisis, city planners in Copenhagen were considering removing bike lanes. Bicycles were considered outdated now car was king, and just 10% of locals were cycling regularly.

    But as economic shock waves reverberated around the world, Denmark, which almost entirely relied on imported oil, took a dramatic U-turn, with citizens staging mass protests in the middle of highways demanding better cycling infrastructure.

    Sign up for a weekly email featuring our best reads

    Continue reading...

  • Harsh weather is nothing new in Kenya but the country’s climate is showing clear signs of getting hotter and drier

    The day is hot and dry but the soil underfoot is soft. “After four months of drought, we received the first rains yesterday,” says Maasai elder Abraham Kampalei. “All we can do now is pray that they continue.”

    Kampalei has lived for more than 50 of his 70 years with his family and animals in Oldonyonyokie, a hamlet in southern Kenya’s Kajiado county. He has witnessed the slow decline of the pastures. “I came here because of the abundance of grass for my livestock to graze. Today, there is almost nothing left of it,” he says.

    Continue reading...

  • As a child, Dominique Bikaba, was displaced by a new national park in the DRC. Now he is helping to secure land for wildlife and Indigenous groups against the backdrop of ongoing fighting

    Mist hangs low over the forested slopes of Kahuzi-Biega national park, where the canopy still shelters one of the last strongholds of the eastern lowland, or Grauer’s, gorilla. It is a landscape of immense biological wealth and equally immense political fragility. For 54-year-old Dominique Bikaba, it was once home.

    His family was among those displaced when their ancestral land was incorporated into the park in the 1970s. The protected area, in the lowlands of South Kivu in the Democratic Republic of the Congo (DRC), harbours elephants and a remarkable range of wildlife, but it is best known as the principal home of the Grauer’s gorilla, the largest subspecies of primates, known to grow up to 250kg (39st) in weight. It is one of five great ape species found in the DRC’s vast forests, including mountain gorillas, which are also found in other parts of the Great Lakes region, such as Rwanda and Uganda.

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

Izvor nije pronađen