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

  • It is the most extracted solid material on Earth – but this extraction can threaten ecosystems and livelihoods

    Malé is one of the world’s most overcrowded cities, but it faces double pressure. As well as a growing population, the capital of the Maldives is also threatened by rising sea levels. Owing to climate breakdown, its living space is shrinking.

    So the justification for a land reclamation project seemed clear. Take sand from elsewhere in the archipelago and use it to build up the land available for Malé’s people. What could go wrong? After all, it’s only sand, right?

    Continue reading...

  • Cockrow Bridge in Surrey will open in the coming weeks to provide wildlife, including lizards and insects, with the ability to move between fragmented habitats

    When James Herd moved near to Wisley Common 17 years ago, the heathland nature reserve was teeming with wildlife. “I’d take the dog around the common in spring and summer, and every few hundred metres I’d hear the rustle of a lizard in the undergrowth – and I’d see adders,” he says.

    But over the past decade, the Surrey Wildlife Trust’s director of reserves management, who oversees the internationally important habitat, has seen that wildlife become depleted.

    Continue reading...

  • Levels of Pfas in northern gannet eggs in Canada fell up to 74% over 55-year period of study

    Levels of some of the most dangerous Pfas compounds have dramatically fallen in Canadian seabird eggs, which the authors of a new peer-reviewed study say illustrates how regulations are effective.

    Researchers looked at Pfas levels in the eggs of northern gannets in the St Lawrence Seaway basin over a 55-year period. Pfas levels shot up from the 1960s through the peak of the chemicals’ use in the late 1990s and early aughts, then fell.

    Continue reading...

  • After a series of deaths on the beaches of Brittany, one bereaved family set out to prove the foul-smelling bloom was to blame

    When her phone rang at around 5pm on 8 September 2016, Rosy Auffray was still at work. It was one of her daughters, distressed, calling to tell her that their father, Jean-René, had not come back from his daily run. Only the family dog had returned, alone and exhausted. Rosy rushed back home.

    When she arrived, Rosy noticed that the dog was behaving bizarrely: she refused to walk, then collapsed under a bush. Her fur stank of rotten eggs, of overflowing sewers. Rosy knew where that smell came from: the mudflats roughly three miles from the family home in Brittany, where seaweed had been accumulating and putrefying. The soggy, decomposing seaweed stretched for miles along the shore, sometimesas much asfive feet thick, killing other plants and suffocating fish and small birds.

    Continue reading...

  • Data from missions showing critically low snowpack on mountains across the west raises alarm among experts

    High above the jagged peaks of California’s Sierra Nevada, the view from the cockpit is breathtaking. At first glance, the mountains appear draped in a pristine white blanket. But as the flight crew gears up for a high-stakes mission, the sensors onboard this specialized aircraft prove that looks can be deceiving.

    “This is a distinct dry year,” says Tom Painter, CEO of Airborne Snow Observatories.

    Continue reading...

  • Move by largest donor to environment programme poses further uncertainty for already troubled negotiations

    The largest donor to the United Nations Environment Programme (Unep) is reviewing its funding to the body before its revised budget on 12 May, triggering concern among member states and NGOs.

    The news could carry significance for the already troubled plastic treaty negotiations being overseen by Unep. Since 2022 countries have been struggling to agree on how to deal with the volume of plastics being produced and used, a subject widely acknowledged to be one of the most serious environmental issues of the age, but despite six rounds of talks there has been no agreement in sight.

    Continue reading...

  • Hunt’s Cross, Liverpool: A survey of the roadside verge turns up 21 species including cuckoo flower and yarrow. But not everyone likes it

    The impact was visceral. For days last spring I watched an army of confederates, with their uniforms of fiery gold bands and anthracite hoops, advancing up the road. They were cinnabar moth caterpillars, gathered on their host plant, common ragwort. And thanks to Liverpool city council’s observance of No Mow May, there were plenty of both in the roadside verge near my home.

    But days before the month ended, the mowing team arrived, like pilgrims breaking their Lenten fast early. The ragworts and their parties of travellers were churned up and spat out. I was desolate.

    Continue reading...

  • The Kenyan player has been recognised for his advocacy and grassroots work to tackle sport’s carbon footprint

    “Most well-known people who talk about climate change are in North America and Europe,” says Kenyan rugby sevens star Kevin Wekesa, “but for us this is a very relevant conversation. It is not only about future tournaments or big international pledges. In Kenya, we see the effects in rising heat, cracked pitches and changing weather in communities where young athletes are growing up.”

    A year before competing in his first Olympic Games at Paris 2024, Wekesa responded to Kenya’s relegation from the top tier of international sevens by offering free rugby coaching in schools across Kenya. After travelling to a school in Kirinyaga on the slopes of Mount Kenya, a wet and verdant region, Wekesa found an unplayable dry field and was forced to cancel the session. One of the students told Wekesa that conditions had been similar for two months, while another suggested the unfamiliar weather was because of climate change.

    This is an extract from our newsletter, The Hotspot. To subscribe just visit this page and follow the instructions.

    Continue reading...

  • As dingoes vanish from parts of Australia, a new documentary is calling on governments to move away from eradication and towards solutions that benefit both farmers and animals

    Carol Pettersen was a small child when her family moved deep into the bush around the Fitzgerald river, on Western Australia’s south coast. It was the 1940s, and her white father and Aboriginal mother had broken the law simply by being together. So the bush became their refuge.

    In that country of mallee heath, banksias and low coastal scrub, dingoes were part of the family’s hidden world. At night, Pettersen could hear them calling through the dark; by day, she glimpsed them moving through the bush – a flicker of red fur among the trees.

    Continue reading...

  • London mayor talks up coalition-building, highlights his environmental record, and worries national Labour party is on the wrong track

    When Sadiq Khan was first elected as mayor of London 10 years ago, Barack Obama was US president, the UK was still in the European Union and Leicester City had just been crowned the unlikely champions of the English Premier League.

    In the intervening decade, Donald Trump has gone from reality TV star to two-time US president, the UK has had six different prime ministers, and Brexit has convulsed the country. London has been rocked by tragedies ranging from terror attacks to the Grenfell Tower fire.

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

Izvor nije pronađen