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

  • Exclusive: Beijing, Delhi, Los Angeles and Rio de Janeiro among worst affected, with demand close to exceeding supply

    Half the world’s 100 largest cities are experiencing high levels of water stress, with 38 of these sitting in regions of “extremely high water stress”, new analysis and mapping has shown.

    Water stress means that water withdrawals for public water supply and industry are close to exceeding available supplies, often caused by poor management of water resources exacerbated by climate breakdown.

    Continue reading...

  • The removal of sulphur from shipping fuels caused ‘a lot of extra sunlight’ to get through atmosphere and hit reef in 2022

    Steps to clean up the shipping industry by removing sulphur from fuels intensified a major coral bleaching event on the Great Barrier Reef by allowing more of the sun’s energy to hit the oceanic wonder, according to a new study.

    Sulphur pollution can cause respiratory problems for humans and cause acid rain, but it also has a shading effect and can make clouds brighter, providing more shade to areas underneath.

    Continue reading...

  • Researchers say event described as ‘major tipping point’ for clean energy in era of destabilised politics

    Wind and solar overtook fossil fuels in the European Union’s power generation last year, a report has found, in a “major tipping point” for clean energy.

    Turbines spinning in the wind and photovoltaic panels lit up by the sun generated 30% of the EU’s electricity in 2025, according to an annual review. Power plants burning coal, oil and gas generated 29%.

    Continue reading...

  • Described by one researcher as looking ‘already dead’, the enigmatic creatures are one of the least understood species on the planet

    It looks more like a worn sock than a fearsome predator. It moves slower than an escalator. By most accounts, it is a clumsy and near-sightless relic drifting in the twilight waters of the Arctic, lazily searching for food scraps.

    The Greenland shark, an animal one researcher (lovingly) said, “looks like it’s already dead”, is also one of the least understood, biologically enigmatic species on the planet.

    Continue reading...

  • Manual for building design aims to encourage low-carbon construction as alternative to steel and concrete

    An airport made of bamboo? A tower reaching 20 metres high? For many years, bamboo has been mostly known as the favourite food of giant pandas, but a group of engineers say it’s time we took it seriously as a building material, too.

    This week the Institution of Structural Engineers called for architects to be “bamboo-ready” as they published a manual for designing permanent buildings made of the material, in an effort to encourage low-carbon construction and position bamboo as a proper alternative to steel and concrete.

    Continue reading...

  • It’s not just Tunbridge Wells – a country famous around the world for its rain is in danger of self-imposed drought

    You get up and go to the loo, only to find the flush doesn’t work. You try the shower, except nothing comes out. You want a glass of water, but on turning the tap there is not a drop. Your day stumbles on, stripped of its essentials: no washing hands, no cleaning up the baby, neither tea nor coffee, no easy way to do the dishes or the laundry. Dirt accumulates; tempers fray.

    The water company texts: we are so sorry; colleagues are working to restore connection; everything should soon be normal. You want to believe them, but the more it’s repeated, the more it becomes a kind of hold music. There’s no supply the next day, and the day after, and the day after that. Each morning brings with it the same chest-tightening question: what will happen today? Buckets and bottles don’t stop you feeling grubby and smelly, or from noticing the taint on your family and friends and neighbours. You’re not quite the people you thought you were and nothing feels normal.

    Aditya Chakrabortty is a Guardian columnist

    Continue reading...

  • Experts say big flaw is the lack of mandatory requirements, meaning developers could ignore the guidance

    Housing where shops, schools, public transport and possibly pubs are close by, with green spaces and access to nature, and where heritage is preserved, should be the norm for all new developments, according to guidelines set out by the government.

    King’s Cross in London, for example, where industrial buildings have been converted into shops, restaurants and public spaces, and where schools and care homes mingle with social and private housing near to a cleaned-up canal and nature reserve, could become the model, according to the new vision.

    Continue reading...

  • Our passion for these cute-looking salamanders means they are everywhere – except in the wild, where the species is under increasing threat

    Axolotls are the new llamas. Which were, of course, the new unicorns. Which triggered a moment for narwhals. If you are an unusual-looking animal, this is your time. Even humans who have never seen an axolotl – a type of salamander – in the smooth and slimy flesh will have met a cartoon or cuddly one. Mexican axolotls have the kind of look that is made for commercial reproduction. The most popular domestic species is pink. Some glow in the dark – and their smile is bigger than Walter’s in the Muppets.

    At Argos or Kmart, you can buy axolotls as cuddly toys, featured on socks, hoodies and bedding, or moulded into nightlights. You can crochet an axolotl, stick a rubber one on the end of your pencil or wear them on your underpants. The Economist says they’re a “global megastar”. More than 1,000 axolotl-themed products are listed on Walmart’s website. They grace US Girl Scouts patches, McDonald’s Happy Meals, and the 50-peso bill, a design so popular that, last year, the Bank of Mexico reported that 12.9 million people were hoarding the notes.

    Continue reading...

  • A study of Arabidopsis thalianaplants found that plants growing together activated genes to protect themselves, while isolated plants did not

    Plants growing close to each other can warn each other about stresses in their lives.

    Thale cress (Arabidopsis thaliana) plants were grown on their own or crowded so close together they were touching each other. When all the plants were then stressed with intense light, the isolated plants suffered severe damage, but the crowds of plants were able to cope with the stress. In fact, it just took an hour for the crowded plants to switch on more than 2,000 of their genes that were involved in protecting against a host of different stresses; in contrast, the isolated plants showed little sign of any extra gene activity.

    Continue reading...

  • As Labour shakes up regulation, suppliers are finally investing – but face problems such as contractor shortages and inflation

    When a sluice gate failed 24 metres below the water’s surface at Thames Water’s Queen Mother reservoir near London’s Heathrow airport, there were no easy fixes available. Emptying 37m cubic metres (1,307m cu ft) of water was not an option, meaning that helmeted divers were limited to 98-minute stints in the high-pressure environment.

    The risky project required a team on a floating platform with a crane to cut out the broken equipment with thermal lances, bolt a plate on to the reservoir wall, and install the new equipment. It took more than a year until last October to complete, according to Glenfield Invicta, the contractor that carried out the work for Thames Water.

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

Izvor nije pronađen