名錄

Ecophysiological and floristic study of the lichen communities in Livingston Island

最新版本 由 GBIF-Spain 發佈於 2021年3月8日 GBIF-Spain
發布日期:
2021年3月8日
Published by:
GBIF-Spain
授權條款:
CC-BY-NC 4.0

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DwC-A資料集 下載 16 紀錄 在 English 中 (6 KB) - 更新頻率: 有可能更新,但不確知何時
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說明

Scientific objectives:-Floristic study of Livingston Island.-Structure, succession and dynamism of the principal lichen and bryolichen communities.-Chorological study (distribution) in the Juan Carlos I base area of plantspecies with special bioclimatic significance.-Research on the early development of lichen symbiosis in relation tomicroclimate and different rock types.-Colonization and adaptation strategies of lichens in the Antarctic environment.Activities carried out:The Byers Peninsula was explored. In this extensive ice-free region, a largenumber of samples were collected on acid to ultrabasic rocks, both eruptive andsedimentary. The following places were visited:1) Beach and front moraine of Roch Dome;2) Clark Nunatak and coastal cliffs up to Elephant Point;3) NE end in the north coast of the peninsula;4) Interior uplands and Chester Cone;5) Cerro Negro and surrounding area;6) SW coast, including exploration of sedimentary rocks.Approximately 300 samples of lichens and mosses were collected, with specialattention to nitrophilous and ornithocoprophilous flora and the floraassociated with gelifraction phenomena. A cartographic survey of Umbilicaria antarctica, Usnea antarctica and Parmelia saxatilis was carried out on thesouth coast in order to check the possible E-W xericity gradient.The ice-freeregion of Hurd Peninsula and north of False Bay were explored, and an abundance of Ramalina terebrata was noted, a species unknown in the area around the Juan Carlos I base. Macrolichens unknown to occur in Antarctica were discovered andcollected near the summit of Monte Reina Sofia. The lichens could be Umbilicaria krascheninikovi, a relatively common lichen in the Andes.A detailedstudy was made of the communities associated with an extreme supply ofnutrients, particularly the so-called ornithocoprophilous communities typicalof places frequently visited by birds. It was noted that Caloplaca regalis, soabundant in other parts of the South Shetland Islands, was almost totallyabsent from these communities. With regards to the structural and dynamics aspect, the model chosen was the bryolichen communities, where competition forspace is strongest, with various strategies and forms of growth sharing a smallarea, including the epiphytic and parasitic. Small plots were described and photographed with their evolution to be measured and marked in subsequent years.In collaboration with the team of geomorphologists, an initial approach was made to the dating of recent moraines and beaches on the basis of the study ofthe succession of lichen communities. The site chosen for this study was theglacier front on the western slope of the Monte Reina Sofia and the area of beach terraces at the Juan Carlos I base. A distribution map was produced at 1:5000 scale of the species of phanerogams Colobanthus quitensis and Deschampsia antarctica, and of the lichens Sphaerophorus globosus, Placopsis contortuplicata, Himantormia lugubris, Umbilicaria aprima, U. decussata, U.nylanderina and U. antarctica. The bioindicator value taken for each of these species is as follows:1)Termophytic specie: C. quitensis, D. antarctica, Sph. Globosus;2)Cryophytic species: Pl. contortuplicata, H. Lugubris;3)Aerohygrophytic species: U. aprima, U.decussata, U. nylanderiana;4)Substratohygrophitic species: U. antarctica.The initial development of the lichen symbiosis was commenced in natural condition, and consisted in the cultivation of lichen samples in naturalstations. Five different species of lichen were selected, 4 of them with awell-characterized ecological behaviour:-Usnea aurantico-atra (spores);-Usnea antarctica (soredia);-Parmelia saxatilis (isidia);-Umbilicaria decussata (thallospores);-Himantormia lugubris (spores).The experiment will run 5 years and samples will be taken every year.Samples were collected for analysis at the University of Kiel. Twenty specimens were collected of the following species: Pseudephebe pubescens,Parmalia saxatilis, Ramalina terebrata, Placopsis contortuplicata, Umbilicaria decussata, Coloplaca sublobulata, Haematomma erythromm, Lecidea sciatrapha,Usnea antarctica, Usnea aurantico-atra, Umbilicaria antarctica.

資料紀錄

此資源名錄的資料已發佈為達爾文核心集檔案(DwC-A),其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 16 筆紀錄。

亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。

Taxon (核心)
16
Distribution 
16

此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本,以便利追蹤其隨時間的變更。

版本

以下的表格只顯示可公開存取資源的已發布版本。

如何引用

研究者應依照以下指示引用此資源。:

SANCHO L (2021): Ecophysiological and floristic study of the lichen communities in Livingston Island. v2.3. GBIF-Spain. Dataset/Checklist. https://doi.org/10.15470/idn6aw

權利

研究者應尊重以下權利聲明。:

此資料的發布者及權利單位為 GBIF-Spain。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.

GBIF 註冊

此資源尚未向GBIF註冊

關鍵字

EARTH SCIENCE; BIOSPHERE; ECOLOGICAL DYNAMICS; COMMUNITY DYNAMICS; COMMUNITY STRUCTURE; BIOTA; LICHEN COMMUNITIES; ECOPHYSIOLOGY; FLORISTIC STUDY; DISTRIBUTION MAP; ANTARCTIC ENVIRONMENT; ALPINE/TUNDRA; NUTRIENTS; VEGETATION; PLANTS; TERRESTRIAL ECOSYSTEMS; VEGETATION SPECIES; MOSSES/HORNWORTS/LIVERWORTS; BIOLOGICAL CLASSIFICATION; FUNGI; LICHENS; SPECIES/POPULATION INTERACTIONS; SPECIES COMPETITION; SYMBIOSIS; EVOLUTIONARY ADAPTATION; POPULATION DYNAMICS; PLANT SUCCESSION; Checklist

聯絡資訊

OSCAR BERMUDEZ MOLINA
  • 連絡人
TECHNICAL CONTACT
Centro Nacional de Datos Antarticos
Instituto Geologico y Minero de Espana. C/ Rios Rosas 23
28003 Madrid
Madrid
ES
+34913495889
Antonio Barragán Sanabria
  • 元數據提供者
DIF Author
Centro Nacional de Datos Antarticos
Instituto Geologico y Minero de Espana. c/Rios Rosas 23
28003 Madrid
Madrid
ES
+34913495731
LEO SANCHO
  • 出處
TECHNICAL CONTACT
Departmento de Biologia Vegetal II
Facultad de Farmacia. Universidad Complutense
28040 Madrid
Madrid
ES
NA

地理涵蓋範圍

Antarctic Peninsula; Scotia Sea; South Shetland Islands; Livingston Island

界定座標範圍 緯度南界 經度西界 [-60, -63], 緯度北界 經度東界 [-60, -63]

分類群涵蓋範圍

無相關描述

時間涵蓋範圍

起始日期 / 結束日期 1992-02-15 / 1992-02-25

額外的詮釋資料

替代的識別碼 doi:10.15470/idn6aw
https://ipt.gbif.es/resource?r=cndp-lichen