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Temperature and spatial connectivity drive patterns in freshwater macroinvertebrate diversity across the Arctic

Lento, Jennifer and Culp, Joseph M. and Levenstein, Brianna and Aroviita, Jukka and Baturina, Maria A. and Bogan, Daniel and Brittain, John E. and Chin, Krista and Christoffersen, Kirsten S. and Docherty, Catherine and Friberg, Nikolai and Ingimarsson, Finnur and Jacobsen, Dean and Lau, Danny Chun Pong and Loskutova, Olga A. and Milner, Alexander and Mykra, Heikki and Novichkova, Anna A. and Olafsson, Jon S. and Schartau, Ann Kristin and Shaftel, Rebecca and Goedkoop, Willem (2022). Temperature and spatial connectivity drive patterns in freshwater macroinvertebrate diversity across the Arctic. Freshwater Biology. 67 :1 , 159-175
[Research article]

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Abstract

Warming in the Arctic is predicted to change freshwater biodiversity through loss of unique taxa and northward range expansion of lower latitude taxa. Detecting such changes requires establishing circumpolar baselines for diversity, and understanding the primary drivers of diversity. We examined benthic macroinvertebrate diversity using a circumpolar dataset of >1,500 Arctic lake and river sites. Rarefied alpha diversity within catchments was assessed along latitude and temperature gradients. Community composition was assessed through region-scale analysis of beta diversity and its components (nestedness and turnover), and analysis of biotic-abiotic relationships. Rarefied alpha diversity of lakes and rivers declined with increasing latitude, although more strongly across mainland regions than islands. Diversity was strongly related to air temperature, with the lowest diversity in the coldest catchments. Regional dissimilarity was highest when mainland regions were compared with islands, suggesting that connectivity limitations led to the strongest dissimilarity. High contributions of nestedness indicated that island regions contained a subset of the taxa found in mainland regions. High Arctic rivers and lakes were predominately occupied by Chironomidae and Oligochaeta, whereas Ephemeroptera, Plecoptera, and Trichoptera taxa were more abundant at lower latitudes. Community composition was strongly associated with temperature, although geology and precipitation were also important correlates. The strong association with temperature supports the prediction that warming will increase Arctic macroinvertebrate diversity, although low diversity on islands suggests that this increase will be limited by biogeographical constraints. Long-term harmonised monitoring across the circumpolar region is necessary to detect such changes to diversity and inform science-based management.

Authors/Creators:Lento, Jennifer and Culp, Joseph M. and Levenstein, Brianna and Aroviita, Jukka and Baturina, Maria A. and Bogan, Daniel and Brittain, John E. and Chin, Krista and Christoffersen, Kirsten S. and Docherty, Catherine and Friberg, Nikolai and Ingimarsson, Finnur and Jacobsen, Dean and Lau, Danny Chun Pong and Loskutova, Olga A. and Milner, Alexander and Mykra, Heikki and Novichkova, Anna A. and Olafsson, Jon S. and Schartau, Ann Kristin and Shaftel, Rebecca and Goedkoop, Willem
Title:Temperature and spatial connectivity drive patterns in freshwater macroinvertebrate diversity across the Arctic
Series Name/Journal:Freshwater Biology
Year of publishing :2022
Volume:67
Number:1
Page range:159-175
Number of Pages:17
Publisher:WILEY
ISSN:0046-5070
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:benthic invertebrates, dispersal, diversity, high latitude, lake, river
URN:NBN:urn:nbn:se:slu:epsilon-p-113505
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113505
Additional ID:
Type of IDID
DOI10.1111/fwb.13805
Web of Science (WoS)000690724300001
ID Code:27080
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:14 Feb 2022 11:25
Metadata Last Modified:14 Feb 2022 11:31

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