Spatial distribution and stable isotopic composition of invertebrates uncover differences between habitats on the glacier surface in the Alps

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10466948" target="_blank" >RIV/00216208:11310/23:10466948 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=v307CcYeiX" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=v307CcYeiX</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10201-023-00713-w" target="_blank" >10.1007/s10201-023-00713-w</a>

Result language

angličtina

Original language name

Spatial distribution and stable isotopic composition of invertebrates uncover differences between habitats on the glacier surface in the Alps

Original language description

Glacier surfaces are the most biologically productive parts of glaciers with a variety of organisms and habitats. However, distinctiveness of habitats and communities of dominant invertebrate consumers on the ice surface is poorly documented. We focused on dominant consumers in three supraglacial (on the glacier surface) habitats on the alpine glacier Forni - cryoconite holes (water-filled reservoirs with a thin layer of sediment at the bottom), supraglacial debris (layer of stones and gravel covering glacier surface), and surface ice of the weathering crust. We analyzed carbon and nitrogen contents and stable isotope ratios (δ(13)C, δ(15)N), organic matter (OM) content, biomass of consumers, and the community composition of consumers to investigate differences between supraglacial habitats. In cryoconite holes, tardigrades (Tardigrada) were dominant consumers. In supraglacial debris, only springtails (Collembola) occurred mainly between stones and ice. No active animals were found in the surface ice of the weathering crust. Carbon and nitrogen contents, δ(13)C, and δ(15)N of invertebrates and OM differed between habitats. Cryoconite was enriched in OM with high δ(13)C and low δ(15)N compared to supraglacial debris likely indicating differences in major components of OM serving as food of invertebrates. Also, the OM, and carbon and nitrogen contents differed between habitats with the highest concentration in cryoconite. The dry biomass of tardigrades was similar compared to springtails. We present the first observation of differences between supraglacial habitats in the Alps based on the community composition of invertebrates, OM and stable isotopes. This initial study highlights the importance of differences in habitats and its consumers in the functioning of supraglacial ecosystem.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10618 - Ecology

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Limnology

ISSN

1439-8621

e-ISSN

1439-863X

Volume of the periodical

24

Issue of the periodical within the volume

2

Country of publishing house

JP - JAPAN

Number of pages

11

Pages from-to

83-93

UT code for WoS article

000946439500001

EID of the result in the Scopus database

2-s2.0-85149473498