Výsledky vyhľadávania
Názov Changes in food web dynamics of low arctic ponds with varying content of dissolved organic carbon Aut.údaje Heather L. Mariash, Matteo Cazzanelli ... [et al.] Autor Mariash Heather L. (20%)
Spoluautori Cazzanelli Matteo (20%)
Rautio Milla (20%)
Hamerlík Ladislav 1974- (20%) UMBFP09 - Katedra biológie a ekológie
Wooller Matthew J. (10%)
Christoffersen Kirsten Seestern (10%)
Zdroj.dok. Arctic, Antarctic, and Alpine Research : An Interdisciplinary Journal. Vol. 50, no. 1 (2018), art. no. e1414472. - Boulder : University of Colorado, 2018 Kľúč.slová sladkovodná ekológia - freshwater ecology plankton stable isotopes Jazyk dok. angličtina Krajina Veľká Británia Systematika 574 Anotácia An influx of terrestrial dissolved organic carbon (DOC) into freshwater habitats can regulate a range of ecosystem characteristics, from water clarity to productivity. To understand the extent to which DOC can regulate ecosystem functioning, we conducted a survey to determine the source of DOC in low Arctic ponds close to the Arctic Circle (Kangerlussuaq, Greenland), including its role in food web dynamics. We used a multiple element (carbon, nitrogen, and hydrogen) stable isotope approach to examine the proportional contribution of different sources to aquatic consumers in nine arctic ponds that spanned a broad gradient of DOC (6.6–60.1 mgL-1). Our results show that benthic and pelagic primary production decreased along a gradient of increasing DOC content. Additionally, the changes in the organic matter pool with increasing DOC translated into changes in consumer resource use. We found significant differences in resource use between species. All consumers relied on benthic autotrophic material when DOC was low; but when DOC was high some consumers changed their diet. Collectively, our findings demonstrate how the concentration of DOC influences aquatic production and our study can be used as a baseline to predict how the aquatic food web may respond to regionally changing DOC concentrations URL Link na plný text Kategória publikačnej činnosti ADC Číslo archívnej kópie 43885 Kategória ohlasu BOMBERG, Malin - LILJEDAHL, Lillemor Claesson - LAMMINMAKI, Tiina - KONTULA, Anne. Highly diverse aquatic microbial communities separated by permafrost in Greenland show distinct features according to environmental niches. In Frontiers in microbiology. ISSN 1664-302X, 2019, vol. 10, article no. 1583, pp. 1-20.
OSBURN, Christopher L. - ANDERSON, N. John - LENG, Melanie J. - BARRY, Christopher D. - WHITEFORD, Erika J. Stable isotopes reveal independent carbon pools across an Arctic hydro-climatic gradient : implications for the fate of carbon in warmer and drier conditions. In Limnology and oceanography letters. ISSN 2378-2242, 2019, vol. 4, no. 6, pp. 205-213.
BERGGREN, M. - BENGTSON, P. - SOARES, A. R. A. - KARLSSON, J. Terrestrial support of zooplankton biomass in northern rivers. In Limnology and oceanography. ISSN 0024-3590, 2018, vol. 63, no. 6, pp. 2479-2492.
VAN HARDENBROEK, M. - CHAKRABORTY, A. - DAVIES, K. L. - HARDING, P. - HEIRI, O. - HENDERSON, A. C. G. - HOLMES, J. A. - LASHER, G. E. - LENG, M. J. - PANIZZO, V. N. - ROBERTS, L. - SCHILDER, J. - TRUEMAN, C. N. - WOOLLER, M. J. The stable isotope composition of organic and inorganic fossils in lake sediment records : current understanding, challenges, and future directions. In Quaternary science reviews. ISSN 0277-3791, 2018, vol. 196, pp. 154-176.
YDE, Jacob C. - ANDERSON, N. John - POST, Eric - SAROS, Jasmine E. - TELLING, Jon. Environmental change and impacts in the Kangerlussuaq area, west Greenland. In arctic antarctic and alpine research. ISSN 1523-0430, 2018, vol. 50, no. 1, pp. 1-6.
KIVILA, E. Henriikka - LUOTO, Tomi P. - RANTALA, Marttiina - NEVALAINEN, Liisa. Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web. In Hydrobiologia. ISSN 0018-8158, 2020, vol. 847, no. 3, pp. 895-911.
LINDBORG, Tobias - RYDBERG, Johan - ANDERSSON, Eva - LOFGREN, Anders - LINDBORG, Emma - SAETRE, Peter - SOHLENIUS, Gustav - BERGLUND, Sten - KAUTSKY, Ulrik - LAUDON, Hjalmar. A carbon mass-balance budget for a periglacial catchment in West Greenland Linking the terrestrial and aquatic systems. In Science of the total environment. ISSN 0048-9697, 2020, vol. 711, article no. 134561, pp. 1-19.
BURPEE, Benjamin T. - SAROS, Jasmine E. Cross-ecosystem nutrient subsidies in Arctic and alpine lakes: implications of global change for remote lakes. In Environmental science-processes & impacts. ISSN 2050-7887, 2020, vol. 22, no. 5, pp. 1166-1189.
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Názov Fish on the roof of the world: densities, habitats and trophic position of stone loaches (Triplophysa) in Tibetan streams Aut.údaje Dean Jacobsen, Soren Kock Laursen, Ladislav Hamerlík, Karen Moltesen, Anders Michelsen, Kirsten Seestern Christoffersen Autor Jacobsen Dean (30%)
Spoluautori Kock Laursen Søren (30%)
Hamerlík Ladislav 1974- (30%) UMBFP09 - Katedra biológie a ekológie
Moltesen Hansen Karen (2%)
Michelsen Anders (6%)
Christoffersen Kirsten Seestern (2%)
Zdroj.dok. Marine and Freshwater Research. Vol. 68, no. 1 (2017), pp. 53-64. - Clayton : CSIRO Publishing, 2017 Kľúč.slová vodné živočíchy - aquatic animals potravinové reťazce - food chains (ecology) stable isotopes bystrinné toky aquatic ecosystems Heslá geogr. Tibetská náhorná plošina - (Tibet) Jazyk dok. angličtina Krajina Austrália Systematika 574 Anotácia The fast increase in temperature on the Tibetan Plateau, with anticipated future changes in aquatic ecosystems and biodiversity, highlights the urgent need for ecological data on the sparsely studied Tibetan running waters. In the present study we surveyed eight Tibetan streams to obtain data on densities, feeding selectivity and trophic position of the stone loach Triplophysa. Benthic algae, detritus, macroinvertebrates and fish were quantified and collected for stable isotope and stomach content analysis. Triplophysa density (mean 0.70 individuals m(-2), maximum 1.6 individuals m(-2)) decreased with altitude and increased with the percentage cover of fine substratum. Glacier-fed sites tended to have the lowest fish densities, whereas the highest densities were found near lakes. Mean fish length (4.1-9.6 cm) was positively related to the percentage cover of coarse substratum. Triplophysa was omnivorous, but the composition of the stomach contents varied greatly between sites and among individuals. Algal matter was ingested at most sites, but macroinvertebrates (Chironomidae, Baetidae and Simuliidae) dominated the ingestion (average 50-100%). The trophic position of Triplophysa, identified from delta N-15 (%) of the biota, varied between 2.6 and 4.2 among localities (mean 3.6) and was inversely related to the biomass of benthic algae, but unrelated to quantities of other potential food sources. Kategória publikačnej činnosti ADC Číslo archívnej kópie 39054 Kategória ohlasu HUANG, Tai-Fu - ZHANG, Pei-Ling - HUANG, Xing-Long - WU, Tao - GONG, Xiao-Yan - ZHANG, You-Xiang - PENG, Qing-Zhong - LIU, Zhi-Xiao. A new cave-dwelling blind loach, Triplophysa erythraea sp. nov. (Cypriniformes : Nemacheilidae), from Hunan province, China. In Zoological research. ISSN 2095-8137, 2019, vol. 40, no. 4, pp. 331-336.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný
Názov Diversity and composition of macroinvertebrate assemblages in high-altitude Tibetan streams Aut.údaje Søren Kock Laursen ... [et al.] Autor Kock Laursen Søren (30%)
Spoluautori Hamerlík Ladislav 1974- (30%) UMBFP09 - Katedra biológie a ekológie
Moltesen Hansen Karen (5%)
Christoffersen Kirsten Seestern (5%)
Jacobsen Dean (30%)
Zdroj.dok. Inland Waters. Vol. 5, no. 2 (2015), pp. 263-274. - Abington : Taylor & Francis Group, 2015 Kľúč.slová macroinvertebrates macroinvertebrate assemblages high altitude streams benthic fauna glacial influence Heslá geogr. Tibet (Čína) Jazyk dok. angličtina Krajina Veľká Británia Systematika 574 Kategória publikačnej činnosti ADC Číslo archívnej kópie 33220 Kategória ohlasu MABIDI, Annah - BIRD, Matthew S. - PERISSINOTTO, Renzo. Distribution and diversity of aquatic macroinvertebrate assemblages in a semiarid region earmarked for shale gas exploration (Eastern Cape Karoo, South Africa). In PLOS ONE. ISSN 1932-6203, 2017, vol. 12, no. 5, art. no. e0178559.
LI, Zhengfei - JIANG, Xiaoming - WANG, Jun - MENG, Xingliang - HEINO, Jani - XIE, Zhicai. Multiple facets of stream macroinvertebrate alpha diversity are driven by different ecological factors across an extensive altitudinal gradient. In Ecology and evolution. ISSN 2045-7758, 2019, vol. 9, no. 3, pp. 1306-1322.
LI, Zhengfei - WANG, Jun - MENG, Xingliang - HEINO, Jani - SUN, Meiqin - JIANG, Xiaoming - XIE, Zhicai. Disentangling the effects of dispersal mode on the assembly of macroinvertebrate assemblages in a heterogeneous highland region. In Freshwater science. ISSN 2161-9549, 2019, vol. 38, no. 1, pp. 170-182.
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článok
Názov Three-spined stickleback Gasterosteus aculeatus L. recorded for the first time at Zackenberg – short description and comparative analysis with Arctic char food biology Aut.údaje Anders Birk Nielsen, Ladislav Hamerlík, Kirsten S. Christoffersen Autor Nielsen Anders Birk (34%)
Spoluautori Hamerlík Ladislav 1974- (33%) UMBFP09 - Katedra biológie a ekológie
Christoffersen Kirsten Seestern (33%)
Zdroj.dok. Zackenberg ecological research operations (ZERO) : 17th Annual Report 2011. Pp. 92-95. - Aarhus : Aarhus University, DCE - Danish Centre for Environment and Energy, 2012 / Jensen L. M. Kľúč.slová zoológia - zoology ryby arktické podmienky Jazyk dok. angličtina Krajina Dánsko Systematika 59 URL Link na plný text Kategória publikačnej činnosti BEE Číslo archívnej kópie 25225 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ článok
Názov Short comment on chironomid assemblages and stratigraphy of high altitude lakes from Tibet Aut.údaje Ladislav Hamerlík, Kirsten S. Christoffersen, Klaus P. Brodersen Autor Hamerlík Ladislav 1974- (34%)
Spoluautori Christoffersen Kirsten Seestern (33%)
Brodersen Klaus Peter (33%)
Zdroj.dok. Chironomus : Newsletter on Chironomidae Research. No. 23 (2010), pp. 20-24. - Trodheim : Norwegian University of Science and Technology, 2010 Kľúč.slová pakomáre - midges - Chironomidae mountain lakes Heslá geogr. Tibet (Čína) Jazyk dok. angličtina Krajina Nórsko Systematika 57 URL Link na plný text Kategória publikačnej činnosti ADE Číslo archívnej kópie 25555 Kategória ohlasu SHARMA, Subodh - GRESENS, Susan E. - JANECEK, Berthold. Chironomidae (Diptera) in the Himalayan lakes - a study of sub-fossil assemblages in the sediments of two hight altitude lakes from Nepal. In CHIRONOMUS : newsletter on Chironomidae research. ISSN 1891-5426, 2012, no. 25, pp. 15-21.
JIANG, Xiaoming - XIE, Zhicai - CHEN, Yifeng. Longitudinal patterns of macroinvertebrate communities in relation to environmental factors in a Tibetan-plateau river system. In Quaternary international. ISSN 1040-6182, 2013, vol. 304, pp. 107-114.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika článok