Metacommunity simulations for diatom assemblages residing in benthic cyanobacterial mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys, Antarctica
Here, we use MCSim, a spatially explicit metacommunity simulation package for R, to test alternative hypotheses about the roles of dispersal and species sorting in maintaining the biodiversity of diatom assemblages residing in black and orange mats in Fryxell Basin in Taylor Valley in the McMurdo Dr...
Main Authors: | , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Environmental Data Initiative
2020
|
Subjects: | |
Online Access: | https://pasta.lternet.edu/package/metadata/eml/edi/597/2 |
id |
dataone:https://pasta.lternet.edu/package/metadata/eml/edi/597/2 |
---|---|
record_format |
openpolar |
spelling |
dataone:https://pasta.lternet.edu/package/metadata/eml/edi/597/2 2024-06-03T18:46:23+00:00 Metacommunity simulations for diatom assemblages residing in benthic cyanobacterial mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys, Antarctica Eric R Sokol J E Barrett Tyler J Kohler Diane M McKnight Mark R Salvatore Lee F Stanish Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys in Antarctica ENVELOPE(162.84685,163.48752,-77.56842,-77.67902) BEGINDATE: 1994-01-08T00:00:00Z ENDDATE: 2015-01-15T00:00:00Z 2020-09-03T00:00:00Z https://pasta.lternet.edu/package/metadata/eml/edi/597/2 unknown Environmental Data Initiative Antarctica McMurdo Dry Valleys LTER Taylor Valley Fryxell Basin Monte Carlo simulation diatom cyanobacteria mats biodiversity Dataset 2020 dataone:urn:node:EDI 2024-06-03T18:16:43Z Here, we use MCSim, a spatially explicit metacommunity simulation package for R, to test alternative hypotheses about the roles of dispersal and species sorting in maintaining the biodiversity of diatom assemblages residing in black and orange mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys of Antarctica. The spatial distribution and patchiness of cyanobacterial mat habitats was characterized by remote imagery of the Lake Fryxell sub-catchment in Taylor Valley collected in January 2015. The available species pool for diatom metacommunity simulation scenarios was informed by the Antarctic Freshwater Diatoms Database, maintained by the McMurdo Dry Valleys Long Term Ecological Research program, representing samples collected between January 1994 and January 2013. We used simulation outcomes to test the plausibility of alternative community assembly hypotheses to explain empirically observed patterns of freshwater diatom biodiversity in the long-term record. The most plausible simulation scenarios suggest species sorting by environmental filters, alone, was not sufficient to maintain biodiversity in the Fryxell Basin diatom metacommunity. The most plausible scenarios included either (1) neutral models with different immigration rates for diatoms in orange and black mats or (2) species sorting by a relatively weak environmental filter, such that dispersal dynamics also influenced diatom community assembly, but there was not such a strong disparity in immigration rates between mat types. The results point to the importance of dispersal for understanding current and future biodiversity patterns for diatoms in this ecosystem, and more generally, provide further evidence that metacommunity theory is a useful framework for testing hypotheses about microbial community assembly. This dataset supports the paper: Sokol, E. Et al, 2020. Evaluating Alternative Metacommunity Hypotheses for Diatoms in the McMurdo Dry Valleys Using Simulations and Remote Sensing Data. Frontiers in Ecology and Evolution. DOI: 10.3389/fevo.2020.521668. The dataset contains four objects: a) the results of the simulation (zipped as one file), b) a manifest describing the contents of that zip file, c) a release of the MCSim model (R code), and d) ancillary inputs and code (zipped). Dataset Antarc* Antarctic Antarctica McMurdo Dry Valleys Environmental Data Initiative (via DataONE) Antarctic Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) Lake Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) McMurdo Dry Valleys Taylor Valley ENVELOPE(163.000,163.000,-77.617,-77.617) The Antarctic ENVELOPE(162.84685,163.48752,-77.56842,-77.67902) |
institution |
Open Polar |
collection |
Environmental Data Initiative (via DataONE) |
op_collection_id |
dataone:urn:node:EDI |
language |
unknown |
topic |
Antarctica McMurdo Dry Valleys LTER Taylor Valley Fryxell Basin Monte Carlo simulation diatom cyanobacteria mats biodiversity |
spellingShingle |
Antarctica McMurdo Dry Valleys LTER Taylor Valley Fryxell Basin Monte Carlo simulation diatom cyanobacteria mats biodiversity Eric R Sokol J E Barrett Tyler J Kohler Diane M McKnight Mark R Salvatore Lee F Stanish Metacommunity simulations for diatom assemblages residing in benthic cyanobacterial mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys, Antarctica |
topic_facet |
Antarctica McMurdo Dry Valleys LTER Taylor Valley Fryxell Basin Monte Carlo simulation diatom cyanobacteria mats biodiversity |
description |
Here, we use MCSim, a spatially explicit metacommunity simulation package for R, to test alternative hypotheses about the roles of dispersal and species sorting in maintaining the biodiversity of diatom assemblages residing in black and orange mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys of Antarctica. The spatial distribution and patchiness of cyanobacterial mat habitats was characterized by remote imagery of the Lake Fryxell sub-catchment in Taylor Valley collected in January 2015. The available species pool for diatom metacommunity simulation scenarios was informed by the Antarctic Freshwater Diatoms Database, maintained by the McMurdo Dry Valleys Long Term Ecological Research program, representing samples collected between January 1994 and January 2013. We used simulation outcomes to test the plausibility of alternative community assembly hypotheses to explain empirically observed patterns of freshwater diatom biodiversity in the long-term record. The most plausible simulation scenarios suggest species sorting by environmental filters, alone, was not sufficient to maintain biodiversity in the Fryxell Basin diatom metacommunity. The most plausible scenarios included either (1) neutral models with different immigration rates for diatoms in orange and black mats or (2) species sorting by a relatively weak environmental filter, such that dispersal dynamics also influenced diatom community assembly, but there was not such a strong disparity in immigration rates between mat types. The results point to the importance of dispersal for understanding current and future biodiversity patterns for diatoms in this ecosystem, and more generally, provide further evidence that metacommunity theory is a useful framework for testing hypotheses about microbial community assembly. This dataset supports the paper: Sokol, E. Et al, 2020. Evaluating Alternative Metacommunity Hypotheses for Diatoms in the McMurdo Dry Valleys Using Simulations and Remote Sensing Data. Frontiers in Ecology and Evolution. DOI: 10.3389/fevo.2020.521668. The dataset contains four objects: a) the results of the simulation (zipped as one file), b) a manifest describing the contents of that zip file, c) a release of the MCSim model (R code), and d) ancillary inputs and code (zipped). |
format |
Dataset |
author |
Eric R Sokol J E Barrett Tyler J Kohler Diane M McKnight Mark R Salvatore Lee F Stanish |
author_facet |
Eric R Sokol J E Barrett Tyler J Kohler Diane M McKnight Mark R Salvatore Lee F Stanish |
author_sort |
Eric R Sokol |
title |
Metacommunity simulations for diatom assemblages residing in benthic cyanobacterial
mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys, Antarctica |
title_short |
Metacommunity simulations for diatom assemblages residing in benthic cyanobacterial
mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys, Antarctica |
title_full |
Metacommunity simulations for diatom assemblages residing in benthic cyanobacterial
mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys, Antarctica |
title_fullStr |
Metacommunity simulations for diatom assemblages residing in benthic cyanobacterial
mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys, Antarctica |
title_full_unstemmed |
Metacommunity simulations for diatom assemblages residing in benthic cyanobacterial
mats in Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys, Antarctica |
title_sort |
metacommunity simulations for diatom assemblages residing in benthic cyanobacterial
mats in fryxell basin in taylor valley in the mcmurdo dry valleys, antarctica |
publisher |
Environmental Data Initiative |
publishDate |
2020 |
url |
https://pasta.lternet.edu/package/metadata/eml/edi/597/2 |
op_coverage |
Fryxell Basin in Taylor Valley in the McMurdo Dry Valleys in Antarctica ENVELOPE(162.84685,163.48752,-77.56842,-77.67902) BEGINDATE: 1994-01-08T00:00:00Z ENDDATE: 2015-01-15T00:00:00Z |
long_lat |
ENVELOPE(163.183,163.183,-77.617,-77.617) ENVELOPE(163.183,163.183,-77.617,-77.617) ENVELOPE(163.000,163.000,-77.617,-77.617) ENVELOPE(162.84685,163.48752,-77.56842,-77.67902) |
geographic |
Antarctic Fryxell Lake Fryxell McMurdo Dry Valleys Taylor Valley The Antarctic |
geographic_facet |
Antarctic Fryxell Lake Fryxell McMurdo Dry Valleys Taylor Valley The Antarctic |
genre |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
_version_ |
1800871907439935488 |