Microbial Species–Area Relationships in Antarctic Cryoconite Holes Depend on Productivity
The island species–area relationship (ISAR) is a positive association between the number of species and the area of an isolated, island-like habitat. ISARs are ubiquitous across domains of life, yet the processes generating ISARs remain poorly understood, particularly for microbes. Larger and more p...
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Online Access: | https://doi.org/10.3390/microorganisms8111747 |
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ftmdpi:oai:mdpi.com:/2076-2607/8/11/1747/ 2023-08-20T04:02:25+02:00 Microbial Species–Area Relationships in Antarctic Cryoconite Holes Depend on Productivity Pacifica Sommers Dorota L. Porazinska John L. Darcy Eli M. S. Gendron Lara Vimercati Adam J. Solon Steven K. Schmidt agris 2020-11-07 application/pdf https://doi.org/10.3390/microorganisms8111747 EN eng Multidisciplinary Digital Publishing Institute Environmental Microbiology https://dx.doi.org/10.3390/microorganisms8111747 https://creativecommons.org/licenses/by/4.0/ Microorganisms; Volume 8; Issue 11; Pages: 1747 Antarctica bacteria biogeography cryoconite eukaryotes glacier ISAR species–area relationship Text 2020 ftmdpi https://doi.org/10.3390/microorganisms8111747 2023-08-01T00:25:26Z The island species–area relationship (ISAR) is a positive association between the number of species and the area of an isolated, island-like habitat. ISARs are ubiquitous across domains of life, yet the processes generating ISARs remain poorly understood, particularly for microbes. Larger and more productive islands are hypothesized to have more species because they support larger populations of each species and thus reduce the probability of stochastic extinctions in small population sizes. Here, we disentangled the effects of “island” size and productivity on the ISAR of Antarctic cryoconite holes. We compared the species richness of bacteria and microbial eukaryotes on two glaciers that differ in their productivity across varying hole sizes. We found that cryoconite holes on the more productive Canada Glacier gained more species with increasing hole area than holes on the less productive Taylor Glacier. Within each glacier, neither productivity nor community evenness explained additional variation in the ISAR. Our results are, therefore, consistent with productivity shaping microbial ISARs at broad scales. More comparisons of microbial ISARs across environments with limited confounding factors, such as cryoconite holes, and experimental manipulations within these systems will further contribute to our understanding of the processes shaping microbial biogeography. Text Antarc* Antarctic Antarctica Canada Glacier glacier* Taylor Glacier MDPI Open Access Publishing Antarctic Canada Taylor Glacier ENVELOPE(162.167,162.167,-77.733,-77.733) Canada Glacier ENVELOPE(162.983,162.983,-77.617,-77.617) Microorganisms 8 11 1747 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Antarctica bacteria biogeography cryoconite eukaryotes glacier ISAR species–area relationship |
spellingShingle |
Antarctica bacteria biogeography cryoconite eukaryotes glacier ISAR species–area relationship Pacifica Sommers Dorota L. Porazinska John L. Darcy Eli M. S. Gendron Lara Vimercati Adam J. Solon Steven K. Schmidt Microbial Species–Area Relationships in Antarctic Cryoconite Holes Depend on Productivity |
topic_facet |
Antarctica bacteria biogeography cryoconite eukaryotes glacier ISAR species–area relationship |
description |
The island species–area relationship (ISAR) is a positive association between the number of species and the area of an isolated, island-like habitat. ISARs are ubiquitous across domains of life, yet the processes generating ISARs remain poorly understood, particularly for microbes. Larger and more productive islands are hypothesized to have more species because they support larger populations of each species and thus reduce the probability of stochastic extinctions in small population sizes. Here, we disentangled the effects of “island” size and productivity on the ISAR of Antarctic cryoconite holes. We compared the species richness of bacteria and microbial eukaryotes on two glaciers that differ in their productivity across varying hole sizes. We found that cryoconite holes on the more productive Canada Glacier gained more species with increasing hole area than holes on the less productive Taylor Glacier. Within each glacier, neither productivity nor community evenness explained additional variation in the ISAR. Our results are, therefore, consistent with productivity shaping microbial ISARs at broad scales. More comparisons of microbial ISARs across environments with limited confounding factors, such as cryoconite holes, and experimental manipulations within these systems will further contribute to our understanding of the processes shaping microbial biogeography. |
format |
Text |
author |
Pacifica Sommers Dorota L. Porazinska John L. Darcy Eli M. S. Gendron Lara Vimercati Adam J. Solon Steven K. Schmidt |
author_facet |
Pacifica Sommers Dorota L. Porazinska John L. Darcy Eli M. S. Gendron Lara Vimercati Adam J. Solon Steven K. Schmidt |
author_sort |
Pacifica Sommers |
title |
Microbial Species–Area Relationships in Antarctic Cryoconite Holes Depend on Productivity |
title_short |
Microbial Species–Area Relationships in Antarctic Cryoconite Holes Depend on Productivity |
title_full |
Microbial Species–Area Relationships in Antarctic Cryoconite Holes Depend on Productivity |
title_fullStr |
Microbial Species–Area Relationships in Antarctic Cryoconite Holes Depend on Productivity |
title_full_unstemmed |
Microbial Species–Area Relationships in Antarctic Cryoconite Holes Depend on Productivity |
title_sort |
microbial species–area relationships in antarctic cryoconite holes depend on productivity |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/microorganisms8111747 |
op_coverage |
agris |
long_lat |
ENVELOPE(162.167,162.167,-77.733,-77.733) ENVELOPE(162.983,162.983,-77.617,-77.617) |
geographic |
Antarctic Canada Taylor Glacier Canada Glacier |
geographic_facet |
Antarctic Canada Taylor Glacier Canada Glacier |
genre |
Antarc* Antarctic Antarctica Canada Glacier glacier* Taylor Glacier |
genre_facet |
Antarc* Antarctic Antarctica Canada Glacier glacier* Taylor Glacier |
op_source |
Microorganisms; Volume 8; Issue 11; Pages: 1747 |
op_relation |
Environmental Microbiology https://dx.doi.org/10.3390/microorganisms8111747 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/microorganisms8111747 |
container_title |
Microorganisms |
container_volume |
8 |
container_issue |
11 |
container_start_page |
1747 |
_version_ |
1774712854627221504 |