Orhideje: Skromne, Nevjerojatne, Očaravajuće!

2023. na Hvaru otkrivena su dva lokaliteta orhideja od strane gostujućih stručnjaka iz Zagreba, koji su pronašli endem Ophrys pharia i Himantoglossum robertianum.

Ophrys pharia, „Forka” Ophrys pharia, „Forka” Photo courtesy of Berislav Horvatić & Ljiljana Borovečki-Voska

Hrvatske divlje orhideje nisu spektakularne vrste poput onih iz tropskih krajeva. Iako cijenjene među ljubiteljima prirode, prečesto lokalnom stanovništvu prolaze neprimijećeno. Rezultat toga je nemarno uništavanje orhideja i njihovih staništa, posebno kroz ekstenzivnu uporabu herbicida. Ljiljana Borovečki-Voska je vrhunska botaničarka, po profesiji nastavnica. Njezin suprug Berislav Horvatić bio je viši znanstveni suradnik na Institutu za fiziku u Zagrebu, a nakon umirovljenja posvetio je velik dio svog vremena, ali i znanstvene stručnosti proučavanju orhideja zajedno sa svojom suprugom.

Ophrys pharia. Fotografija: Berislav Horvatić i Ljiljana Borovečki-Voska

Ophrys pharia bila je godinama nedohvatljiva. Berislav i Ljiljana znali su da je Ophrys pharia specifična za Hvar: opisali su je P. Devillers i J. Devillers-Terschuren u časopisu Naturalistes Belges (vol. 85: 233) 2004. godine, a fotografirali su je u blizini sela Vrbanj u središnjem dijelu Hvara u travnju 2007. godine.

Ophrys pharia. Fotografija: Berislav Horvatić i Lijljana Borovečki-Voska

Prije 2004. godine, Ophrys pharia bila je opisana kao podvrsta. Kada su 29. travnja 2023. krenuli u potragu za Ophrys phariu na Hvaru, bili su svjesni da će to biti zastrašujući izazov, možda čak i 'nemoguća misija'. Ophrys pharia opisana je na web stranici „Orchids of Britain and Europe“: „Ovo je veoma ugrožena vrsta, za koju se smatralo da je ne samo endem za Hrvatsku, već specifično za otok Hvar, gdje sve agresivnije poljoprivredne metode smanjuju stanište dostupno ovoj vrsti koju sada postaje izuzetno teško pronaći, čak i na njenim nekadašnjim uporištima oko Vrboske, u središnjem dijelu otoka.“

Ophrys pharia u polju. Fotografija: Berislav Horvatić i Ljiljana Borovečki-Voska

Kada se ugleda sitne orhideje stisnute među ostalim divljim cvijećem, bude sasvim jasno zašto je potrebna stručna makrofotografija kako bi se potvrdilo opažanje rijetkih vrsta!

Ophrys pharia u prirodi. Fotografija: Berislav Horvatić i Ljiljana Borovečki-Voska

Još važnije, značajke po kojima se razlikuju pojedine orhideje od drugih, često su vrlo suptilni detalji, što naravno čini orhideje tako fascinantnim i izazovnim biljkama za proučavanje.

Berislav slika orhideje.

Pravi stručnjaci poput Ljiljane (kojih je naravno vrlo malo) godinama strpljivo promatraju orhideje kako bi mogli sa sigurnošću identificirati različite vrste. Ophrys pharia križa se s Ophrys rhodostephane i ti hibridi su izuzetno rijetki.

Hibrid ophrys pharia x ophrys rhodostephane. Foto: Berislav Horvatić i Ljiljana Borovečki-Voska
Hibridi. Foto: Berislav Horvatić i Ljiljana Borovečki-Voska

Ophrys rhodostephane se izrazito razlikuje od Ophrys pharia te obiluje u Dalmaciji, a i na Hvaru. Vrijedan savjet Berislava: „najbolji i najlakši način da ih vidite mnogo je spora vožnja starom cestom između Brusja i Selca - naravno, u pravo doba godine. Neasfaltirana cesta kroz Rovan je također izvrsna.“ 

Ophrys rhodostephane. Foto: Berislav Horvatić i Ljiljana Borovečki-Voska

Nizozemski stručnjak za orhideje Frank Verhart proučavao je orhideje tijekom nekoliko posjeta Hvaru, no nije ugledao Ophrys phariu, da bi na kraju Berislav i Ljiljana u roku od tri dana pronašli ništa manje od devet primjeraka u okolici Vrbanja! Poput Franka Verharta i drugih botaničara, odmah su podijelili svoja otkrića s hrvatskom bazom podataka Flora Croatica Database. Pronalazak Himantoglossum robertianum (sin. Barlia robertiana) bio je neočekivani bonus, kako prethodno nije bio zabilježen na Hvaru.

Himantoglossum robertianum. Foto: Berislav Horvatić i Ljiljana Borovečki-Voska

Pronalazač je zapravo bio lokalni stanovnik Antun Vranković Bili iz sela Svirče. Iako se vrsta teško pronašla, nakon otkrića, Ljiljana i Berislav odmah su je identificirati. Prvobitno je viđena na području Rovana blizu Svirača. Ljiljana i Berislav su kasnije pronašli još jedan primjerak u masliniku ispod Pitava, zbog čega su zaključili da na otoku ima još primjeraka, iako rijetkih.

Antun Vranković Bili. Foto: Berislav Horvatić i Ljiljana Borovečki-Voska

Kako bi proslavili da Ophrys pharia nije izumrla na Hvaru, Berislav i Ljiljana su zabilježili svoje povijesno otkriće na šalicama kao trajni suvenir! 

Slavljeničke šalice. Fotografija: Berislav Horvatić i Ljiljana Borovečki-Voska

Izuzetno smo zahvalni Berislavu Horvatiću i Ljiljani Borovečki-Voska što su s nama podijelili neprocjenjive informacije o svom uspješnom terenskom putovanju na Hvar 2023. godine, kao i na dopuštenju da koristimo njihove tekstove i fotografije. Njihova predanost je od iznimne pomoći u kampanji podizanja svijesti o detaljima predivnih prirodnih resursa Hrvatske, kako bi ih očuvali i njegovali za buduće generacije. 

Ljiljana Borovečki-Voska autorica je knjige „Orhideje na Strahinjščici i susjednim područjima“, u nakladi Alfa, 2010. godine.

Relevantni članci:

Ljiljana Borovečki-Voska, Berislav Horvatic. 2020.  Orhidejski hibridi (Orchidaceae) na otoku Krku. Orchid hybrids (Orchidceae) on the Island of Krk. Glasnik hrvatskog botaničkog društva. (Article in Croatian)

Frank Verhart: Orchid observations in Croatia in 2017 and 2018: https://drive.google.com/file/d/1tqx1iIJUFLN8H7LJlFTkvlD6YhdzfsmJ/edit

Frank Verhart: 2017. Orchids on Pelješac. Eco Hvar website.

Frank Verhart. Orchid observations in Croatia in 2019. http://www.franknature.nl/Verhart%20orchid%20observations%20in%20Croatia%20in%202019.pdf

Grace Brewer. February 2024. Sneaky orchids and their pollination tricks. Royal Botanic Gardens, Kew, Blog article.

© Vivian Grisogono 2024.
Prijevod: Josip Vlainić

 

 

Nalazite se ovdje: Home Novosti iz prirode Orhideje: Skromne, Nevjerojatne, Očaravajuće!

Eco Environment News feeds

  • Smaller, cheaper cars built for narrow city streets are becoming more stylish – but require careful design decisions

    The winding backstreets of London, Paris and Rome are a large part of their charm. But they are also a problem for electric carmakers. For a long time, squeezing big batteries into smaller, cheaper cars to fit European streets was too much of a problem, so manufacturers focused on bloated SUVs instead.

    But that is finally changing. Battery technology has improved and Europe’s carmakers havecut manufacturing costs enough that they can now sell cars that might have a chance of fitting down a medieval lane or two.

    Continue reading...

  • Exclusive: European Commission planning to rewrite key law to allow water-intensive mines in regions suffering from drought

    The European Commission plans to rewrite the EU’s flagship water protection law to speed up the development of critical minerals mines, despite many being located in drying and water-stressed regions, analysis has found.

    Mining is a water-intensive industry, requiring large volumes of water for ore processing, dust suppression, waste management and mine dewatering. While modern projects recycle water, they still require significant amounts, and in water-stressed regions those demands can add to pressure on already stretched rivers, aquifers and water supplies.

    Continue reading...

  • The reconstruction of the vaquita, whose numbers barely reach double figures in the wild, is designed to help research and conservation efforts

    Scientists have created a digital reconstruction of the world’s most endangered marine mammal, preserving its anatomy in three dimensions to aid research and conservation efforts as the species teeters on the brink of extinction.

    The project digitised the skeleton of a female vaquita, a small porpoise found only in Mexico’s northern Gulf of California, using a combination of medical imaging, ultra-high-resolution micro CT scans and photography.

    Continue reading...

  • Blaenau Ffestiniog, Gwynedd: This living sculpture, planted in the 1970s ‘for the 21st century’, is fading fast. But heartbreak is not the only response

    Ten years ago when I visited the Ash Dome, it was an elegant, twisting circle of beautiful trees. Ten years ago, ash dieback had not yet reached this corner of Wales. Returning now to this secret location, I steeled myself for heartbreak. And there it was.

    Today, the Ash Dome, a living sculpture by the renowned artist David Nash, is an elephant’s graveyard. Pale, twisted limbs encircle a heap of dead branches. On a few trunks, new shoots spring innocently upwards, but most are ailing, their bark white and flaky as dead skin.

    Continue reading...

  • Apart from effort to electrify, there were geopolitical tensions around climate science and the 1.5C goal at pre-Cop31 climate talks

    Electrifying the world – with electric vehicles, electric heating and cooling, and modernised heavy industry – could be the next biggest step towards phasing out fossil fuels, replacing the 80% of global energy that still comes from hydrocarbons. As using electrical energy is much more efficient than combustion, the move would save billions of dollars for consumers and businesses – global energy demand could be halved, according to one estimate.

    For decades, electrification has been a nerdish backwater of global climate action. But in the last two weeks, at preparatory talks in Bonn before the forthcoming UN Cop31 climate summit, the subject finally took centre stage.

    Continue reading...

  • Experts cast doubt on conclusion of government-funded study of factory emitting forever chemicals near Blackpool

    Questions have been raised about the conclusions drawn by a government-funded study into kidney cancer rates near a factory linked to forever chemicals near Blackpool.

    Pfoa, a known carcinogenic forever chemical that was banned globally in 2020, was emitted from the AGC Chemicals Europe plant in Thornton-Cleveleys, near Blackpool, between the 1950s and 2012. An estimated 49 tonnes of Pfoa were emitted during that period. The factory, which AGC Chemicals Europe bought in 1999, stopped using Pfoa in 2012.

    Continue reading...

  • Move to dismantle $368m sea observatory initiative faced opposition from experts and lawmakers

    The Donald Trump administration has reversed its decision to dismantle a $368m deep-sea observation system following an outcry from lawmakers and ocean experts.

    On Thursday, the National Science Foundation announced that it would halt plans to dismantle the Ocean Observatories Initiative, stating: “effective immediately, [it] will not proceed with further removal or descoping of equipment from the remaining arrays and will continue operations including planned maintenance”.

    Continue reading...

  • A national heatwave plan has been activated to help people stay cool during the Netherlands’ increasingly hot summers

    Households in Amsterdam are being urged to hang their curtains outside their windows as health experts recommend simple hacks to moderate the heatwave rolling across the Netherlands, where homes were built for old-fashioned damp and coldish northern European weather.

    In a viral social media post last week, Eline Coolen, the heat coordinator at the city’s public health institute, urged sweaty city-dwellers to rig up temporary curtain rails or drape curtains or sheets outside to stop the sun’s rays reaching their large windows.

    Continue reading...

  • Forced to stay home or switch jobs, working mothers are bearing the brunt of the climate crisis as classes go online for weeks or months at a time

    Outside, the temperature has passed 41C (105.8F). Inside Sakshi Katyal’s city apartment, the air conditioner is blasting but it does little to relieve the stress of balancing housework and helping her five-year-old log in on a laptop to online classes. Her daughter’s school closed in May and Katyal is not clear when it will reopen. Probably not till the autumn.

    Schools across Delhi and in about half of India’s 28 states, have been ordered to close from mid-May until the end of June, when in many places the summer break starts. There is no official record of closures in past years but the Guardian has spoken to school officials who say the number of days schools are shut for because of the heat has risen sharply. The impact on families, especially on working women, has been huge.

    Continue reading...

  • Opposition to plans for ‘small paradise’ island of Sazan becomes wave of dissent against establishment

    For Ina Shkurti, like so many Albanians, the island of Sazan has played an outsized role. As a child she bathed in its “always calm and emerald green” waters, as a teenager it figured in her dreams and as an adult it was an indelible part of the memory and desire that drew her back, every summer, to Vlore, her home town across the sea.

    What Shkurti never imagined was that plans to build a mega-resort on Sazan – one of two luxurious resorts on Albania’s southern coast backed by Ivanka Trump and her husband, Jared Kushner – would trigger a revolt, an uprising that has convulsed the Balkan state in a spasm of disgust over the perceived excesses of “a rotten oligarchic class” just as it hopes to complete accession talks with the EU.

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

Izvor nije pronađen