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

  • Almost every child, including those from high-income countries, is now exposed to at least one hazard

    Half of the world’s children are exposed to at least three overlapping climate hazards threatening their health, education and survival, according to a Unicef report.

    Globally, children face increasing threats from heatwaves, storms, floods and droughts as the climate crisis worsens, with more than one billion facing at least three of these at once.

    Continue reading...

  • Tech is helping to identify and save new specimens and could open ‘genomic goldmine’ of fungi data

    The rise of AI and digitisation could be a turning point in the “race against extinction” faced by botanists trying to identify and save vital plants before they vanish, according to a major report from Royal Botanic Gardens, Kew.

    New technology is enabling scientists to track how flowering times have shifted by weeks around the world, rapidly identify new specimens and even get crucial genetic data from 180-year-old fungus specimens, potentially opening a “genomic goldmine”. Digitisation and online access to millions of specimens that were until now only accessible in archives is also producing new insights, especially in the global south.

    Continue reading...

  • The short-tailed roundleaf bat was feared extinct until scientist Iroro Tanshi found one in Afi sanctuary in Nigeria, and set out to protect the only confirmed roosting colony

    Just after sunrise, a cacophony of whoops and chatter can be heard over the verdant forests of the Afi mountain wildlife sanctuary. Nestled within the Cross River rainforest in south-east Nigeria, and spanning an area about the size of central Paris, the steep sanctuary is a haven for endangered gorillas, drill monkeys, the grey-necked rockfowl – and the short-tailed roundleaf bat.

    The Nigerian biologist Iroro Tanshi remembers the moment she first spotted the endangered bat in 2016, during a field expedition for her PhD research. “We were trapping near a roost that night, so we caught a lot of bats,” says Tanshi. But, she adds: “This looked very, very different. Big-eared.” She promptly turned to her identification guide, which revealed that the tiny furry creature she was holding between her fingers was Hipposideros curtus, better known as the short-tailed roundleaf bat, last recorded in the wild in the 1970s.

    Continue reading...

  • Thinktank says decoupling electricity from gas prices has also helped shield Spain from hikes caused by Iran war

    Spanish households save €10 a month on electricity bills because of wind turbines and solar panels installed in the last five years, a report has found.

    Typical energy bills would be 19% more expensive if electricity costs were still as tightly coupled to gas prices as in 2021, according to Ember, a climate thinktank. It found Spain’s “strategic” expansion of renewables since Russia invaded Ukraine in 2022 has shielded Spanish households from the latest rises in fossil fuel prices caused by the Iran war.

    Continue reading...

  • Wharfedale, Yorkshire: On the trail of a wood warbler, I find a suite of woodland plants rising up from a fascinating land formation – limestone pavement

    Grass Wood is a magnificent fragment of ancient woodland owned and exceptionally well managed by the Yorkshire Wildlife Trust. It is home to some lovely plants, including lily of the valley and herb paris. What became my defining revelation about the place and, in truth, about this whole area was down to a wood warbler.

    It is among my favourite birds, so getting to see the individual singing just off the trail required me to enter the trees, rise up a short bank, and then sit for a long time on a rocky ledge. Slowly it dawned on me that the platform on which I rested, while carpeted in moss, was also incised into a tessellated pattern. From these narrow cracks in the limestone arose a suite of woodland plants. It was dense with ash seedlings, ferns and sedges, as well as linear thickets of dog’s mercury, but there – unmistakably where my hand rested – were strips of flowering herb paris.

    Continue reading...

  • Amid fears the wreck will be more accessible to explorers – and new species – as the climate warms, conservationists want to create the region’s first underwater protected area

    The harsh temperatures, treacherous currents and shifting pack ice of the Antarctic’s Weddell Sea, which crushed and sank his ship, Endurance, in 1915, led Ernest Shackleton to describe it as the “worst portion of the worst sea in the world”.

    For more than a century, the inhospitable conditions, which present a challenge even for modern icebreaker ships, helped to protect the lost wreck, which was discovered in 2022, its structure still largely intact.

    Continue reading...

  • Charging industry and electric vehicle manufacturers say measure could cost jobs and harm UK automotive sector

    The UK government’s plans to further weaken electric car targets have provoked a furious backlash from the charging industry and the electric car brand Polestar, which would lose out from the changes.

    The government is expected to dilute rules known as the zero emission vehicle (ZEV) mandate. Government sources have said it will reduce a target for pure electric cars from 80% of all sales by 2030 to 50%.

    Continue reading...

  • Residents of West Oakland, which suffers from toxic waste and high pollution rates, rally against a coal export facility

    West Oakland, a California neighborhood known for its rich history of Black activism from the Pullman Porters’ union to the Black Panthers, might not seem like the site of the country’s next great coal project.

    But that’s exactly what the Trump administration is pushing for – with the injection of $75m to build a sprawling coal export terminal in the nearby port of Oakland.

    Continue reading...

  • ‘Saddened, stunned, surprised and haunted’ is how one surfer describes the mood at the popular Sydney beach two days after Leah Stewart was bitten by a great white

    Under a clear blue sky on a Monday morning, Coogee beach in Sydney’s east is quiet.

    A few swimmers have ventured into the ocean pools at the northern and southern ends of the beach. Most others sit on the sand, looking towards the water.

    Continue reading...

  • Activists argue business model is ‘plantation tourism’ designed to benefit elite and disadvantage most Jamaicans

    Devon Taylor remembers when the Mammee Bay shoreline in St Ann, Jamaica, was filled with children frolicking in the ocean after school, fishers haggling with locals over the price of their daily catch and craft vendors carving souvenirs under almond trees.

    “I grew up on Mammee Bay,” Taylor says. He recalls fetching seawater in bottles for his grandmother when she was no longer able to go to the beach, learning to swim in the shallows, and watching generations of fishers cast their nets. “That beach raised us. It fed us.”

    Continue reading...

Novosti: Cybermed.hr

Novosti: Biologija.com

Izvor nije pronađen