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Dispersal of lichens along a successional gradient after deglaciation of volcanic mesas on northern James Ross Island, Antarctic Peninsula

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897472" target="_blank" >RIV/60076658:12310/18:43897472 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/67985939:_____/18:00500471 RIV/68378050:_____/18:00500471 RIV/00216208:11310/18:10386388 RIV/00216224:14310/18:00108890

  • Výsledek na webu

    <a href="https://link.springer.com/content/pdf/10.1007%2Fs00300-018-2357-7.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2Fs00300-018-2357-7.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s00300-018-2357-7" target="_blank" >10.1007/s00300-018-2357-7</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Dispersal of lichens along a successional gradient after deglaciation of volcanic mesas on northern James Ross Island, Antarctic Peninsula

  • Popis výsledku v původním jazyce

    Aerial dispersal in the colonization of bare ground by lichens in the polar regions remains poorly understood. Potential colonists may arrive continually, although extreme abiotic conditions limit their viability. We investigated the vegetative dispersal of Antarctic macrolichens along a successional gradient (from 8.6-7.0 ka BP up to present) after glacial retreat on James Ross Island, in the Antarctic Peninsula region. We collected lichen fragments by means of sticky traps glued on the ground and exposed for 1 year. Foliose or fruticose growth types were the most frequently recorded species (namely Usnea spp. and Leptogium puberulum) together with widely distributed fungi mycelia, while crustose lichens were not found. Although these two lichen species are also locally the most common, their frequency of occurrence in the traps was largely unrelated to local dominance, indicating long-distance dispersal. On the other hand, the dispersed community assembly was related to overall lichen cover and ground physical structure (clast size). There was a gradient of species occurrence frequency increasing with maximal clast size and distance from the glacier front. These results imply that there is no dispersal limitation (at least for certain lichen species) in the colonization of newly deglaciated substrates at the regional scale on James Ross Island. However, lichen establishment is rather rare, and growth of a lichen community is therefore a long-term process.

  • Název v anglickém jazyce

    Dispersal of lichens along a successional gradient after deglaciation of volcanic mesas on northern James Ross Island, Antarctic Peninsula

  • Popis výsledku anglicky

    Aerial dispersal in the colonization of bare ground by lichens in the polar regions remains poorly understood. Potential colonists may arrive continually, although extreme abiotic conditions limit their viability. We investigated the vegetative dispersal of Antarctic macrolichens along a successional gradient (from 8.6-7.0 ka BP up to present) after glacial retreat on James Ross Island, in the Antarctic Peninsula region. We collected lichen fragments by means of sticky traps glued on the ground and exposed for 1 year. Foliose or fruticose growth types were the most frequently recorded species (namely Usnea spp. and Leptogium puberulum) together with widely distributed fungi mycelia, while crustose lichens were not found. Although these two lichen species are also locally the most common, their frequency of occurrence in the traps was largely unrelated to local dominance, indicating long-distance dispersal. On the other hand, the dispersed community assembly was related to overall lichen cover and ground physical structure (clast size). There was a gradient of species occurrence frequency increasing with maximal clast size and distance from the glacier front. These results imply that there is no dispersal limitation (at least for certain lichen species) in the colonization of newly deglaciated substrates at the regional scale on James Ross Island. However, lichen establishment is rather rare, and growth of a lichen community is therefore a long-term process.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    10618 - Ecology

Návaznosti výsledku

  • Projekt

    Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2018

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Polar Biology

  • ISSN

    0722-4060

  • e-ISSN

  • Svazek periodika

    41

  • Číslo periodika v rámci svazku

    11

  • Stát vydavatele periodika

    US - Spojené státy americké

  • Počet stran výsledku

    12

  • Strana od-do

    2221-2232

  • Kód UT WoS článku

    000446075800005

  • EID výsledku v databázi Scopus

    2-s2.0-85048761494