Distribution and diversity of Tardigrada along altitudinal gradients in the Hornsund, Spitsbergen (Arctic)

Polar research

Łukasz Michalczyk²  Krzysztof Zawierucha⁴  Jerzy Smykla⁵  Bartłomiej Gołdyn⁶  Łukasz Kaczmarek⁷ 

[1] Laboratorio de Ecología Natural y Aplicada de Invertebrados, Universidad Estatal Amazónica, Puyo, Ecuador;Present address: Department of Biology and Marine BiologyUniversity of North Carolina, Wilmington, 601 S. College Rd., Wilmington, NC 28403, USA;Department of Animal Taxonomy and EcologyFaculty of Biology, Adam Mickiewicz University in Poznań, Umultowska 89, PL-61-614 Poznań, Poland;Department of Animal Taxonomy and EcologyFaculty of Biology, Adam Mickiewicz University in Poznań, Umultowska 89, PL-61-614 Poznań, PolandCorrespondence;Department of BiodiversityInstitute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, PL-31-120 Kraków, Poland;Department of EntomologyInstitute of Zoology, Jagiellonian University, Gronostajowa 9, PL-30-387 Kraków, Poland;Department of General ZoologyFaculty of Biology, A. Mickiewicz University in Poznań, Umultowska 89, PL-61-614 Poznań, Poland

关键词: Arctic;    biodiversity;    climate change;    invertebrate ecology;    Milnesium;    Tardigrada;   

DOI  :  10.3402/polar.v34.24168

学科分类：自然科学（综合）

来源: Co-Action Publishing

【 摘 要 】

Two transects were established and sampled along altitudinal gradients on the slopes of Ariekammen (77°01′N; 15°31′E) and Rotjesfjellet (77°00′N; 15°22′E) in Hornsund, Spitsbergen. In total 59 moss, lichen, liverwort and mixed moss–lichen samples were collected and 33 tardigrade species of Hetero- and Eutardigrada were found. The α diversity ranged from 1 to 8 per sample; the estimated number of species based on all analysed samples was 52±17 for the Chao 2 estimator and 41 for the incidence-based coverage estimator. According to the results of detrended canonical correspondence analysis, altitude and type of substratum were the most important factors influencing tardigrade communities in the investigated area. Macrobiotus crenulatus, M. hufelandi hufelandi and Hypsibius pallidus dominated in the lower elevations, whereas Echiniscus wendti and E. merokensis merokensis prevailed in samples from higher plots. Macrobiotus islandicus islandicus was collected most often from mosses collected from rock whereas ...

【 授权许可】

CC BY-NC