Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction
Facilitation is an interaction where one species (the benefactor) positively impacts another (the beneficiary). However, the reciprocal effects of beneficiaries on their benefactors are typically only documented using short-term datasets. We use Azorella selago , a cushion plant species and benefact...
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ftzenodo:oai:zenodo.org:7388883 2024-09-15T17:41:04+00:00 Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction Raath-Krüger, Morgan Schöb, Christian McGeoch, Melodie Burger, Divan Strydom, Tanya le Roux, Peter Christiaan 2022-12-01 https://doi.org/10.5061/dryad.34tmpg4pp unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.34tmpg4pp oai:zenodo.org:7388883 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode beneficiary feedback effects bidirectional plant-plant interactions cost of facilitation long-term dataset repeat photography sub-antarctic info:eu-repo/semantics/other 2022 ftzenodo https://doi.org/10.5061/dryad.34tmpg4pp 2024-07-25T09:57:27Z Facilitation is an interaction where one species (the benefactor) positively impacts another (the beneficiary). However, the reciprocal effects of beneficiaries on their benefactors are typically only documented using short-term datasets. We use Azorella selago , a cushion plant species and benefactor, and a co-occurring grass species, Agrostis magellanica , on sub-Antarctic Marion Island, comparing cushion plants and the grasses growing on them over a 13-year period using a correlative approach. We additionally compare the feedback effect of A. magellanica on A. selago identified using our long-term dataset with data collected from a single time period. We hypothesized that A. selago size and vitality would be negatively affected by A. magellanica cover and that the effect of A. magellanica on A. selago would become more negative with increasing beneficiary cover and abiotic-severity, due to, e.g., more intense competition for resources. We additionally hypothesized that A. magellanica cover would increase more on cushion plants with greater dead stem cover, since dead stems do not inhibit grass colonization or growth. The relationship between A. magellanica cover and A. selago size and vitality was not significant in the long-term dataset, and the feedback effect of A. magellanica on A. selago did not vary significantly with altitude or aspect; however, data from a single time period did not consistently identify this same lack of correlation. Moreover, A. selago dead stem cover was not significantly related to an increase in A. magellanica cover over the long term; however, we observed contrasting results from short-term datasets. Long-term datasets may, therefore, be more robust (and practical) for assessing beneficiary feedback effects than conventional approaches, particularly when benefactors are slow-growing. For the first time using a long-term dataset, we show a lack of physical cost to a benefactor species in a facilitative interaction, in contrast to the majority of short-term studies. Funding ... Other/Unknown Material Antarc* Antarctic Marion Island Zenodo |
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unknown |
topic |
beneficiary feedback effects bidirectional plant-plant interactions cost of facilitation long-term dataset repeat photography sub-antarctic |
spellingShingle |
beneficiary feedback effects bidirectional plant-plant interactions cost of facilitation long-term dataset repeat photography sub-antarctic Raath-Krüger, Morgan Schöb, Christian McGeoch, Melodie Burger, Divan Strydom, Tanya le Roux, Peter Christiaan Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction |
topic_facet |
beneficiary feedback effects bidirectional plant-plant interactions cost of facilitation long-term dataset repeat photography sub-antarctic |
description |
Facilitation is an interaction where one species (the benefactor) positively impacts another (the beneficiary). However, the reciprocal effects of beneficiaries on their benefactors are typically only documented using short-term datasets. We use Azorella selago , a cushion plant species and benefactor, and a co-occurring grass species, Agrostis magellanica , on sub-Antarctic Marion Island, comparing cushion plants and the grasses growing on them over a 13-year period using a correlative approach. We additionally compare the feedback effect of A. magellanica on A. selago identified using our long-term dataset with data collected from a single time period. We hypothesized that A. selago size and vitality would be negatively affected by A. magellanica cover and that the effect of A. magellanica on A. selago would become more negative with increasing beneficiary cover and abiotic-severity, due to, e.g., more intense competition for resources. We additionally hypothesized that A. magellanica cover would increase more on cushion plants with greater dead stem cover, since dead stems do not inhibit grass colonization or growth. The relationship between A. magellanica cover and A. selago size and vitality was not significant in the long-term dataset, and the feedback effect of A. magellanica on A. selago did not vary significantly with altitude or aspect; however, data from a single time period did not consistently identify this same lack of correlation. Moreover, A. selago dead stem cover was not significantly related to an increase in A. magellanica cover over the long term; however, we observed contrasting results from short-term datasets. Long-term datasets may, therefore, be more robust (and practical) for assessing beneficiary feedback effects than conventional approaches, particularly when benefactors are slow-growing. For the first time using a long-term dataset, we show a lack of physical cost to a benefactor species in a facilitative interaction, in contrast to the majority of short-term studies. Funding ... |
format |
Other/Unknown Material |
author |
Raath-Krüger, Morgan Schöb, Christian McGeoch, Melodie Burger, Divan Strydom, Tanya le Roux, Peter Christiaan |
author_facet |
Raath-Krüger, Morgan Schöb, Christian McGeoch, Melodie Burger, Divan Strydom, Tanya le Roux, Peter Christiaan |
author_sort |
Raath-Krüger, Morgan |
title |
Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction |
title_short |
Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction |
title_full |
Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction |
title_fullStr |
Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction |
title_full_unstemmed |
Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction |
title_sort |
long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.5061/dryad.34tmpg4pp |
genre |
Antarc* Antarctic Marion Island |
genre_facet |
Antarc* Antarctic Marion Island |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.34tmpg4pp oai:zenodo.org:7388883 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.34tmpg4pp |
_version_ |
1810487149135396864 |