Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front
Abstract Climate‐induced changes in the ocean and sea ice environment of the Arctic are beginning to generate major and rapid changes in Arctic ecosystems, but the effects of directional forcing on the persistence and distribution of species remain poorly understood. Here, we examine the reproductiv...
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ftdoajarticles:oai:doaj.org/article:a488740134244fb398ff17a51b4f9932 2023-05-15T14:54:45+02:00 Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front Adam J. Reed Jasmin A. Godbold Martin Solan Laura J. Grange 2021-06-01T00:00:00Z https://doi.org/10.1002/ece3.7539 https://doaj.org/article/a488740134244fb398ff17a51b4f9932 EN eng Wiley https://doi.org/10.1002/ece3.7539 https://doaj.org/toc/2045-7758 2045-7758 doi:10.1002/ece3.7539 https://doaj.org/article/a488740134244fb398ff17a51b4f9932 Ecology and Evolution, Vol 11, Iss 11, Pp 6900-6912 (2021) functional biogeography gametogenesis interannual variability life history reproductive plasticity Ecology QH540-549.5 article 2021 ftdoajarticles https://doi.org/10.1002/ece3.7539 2022-12-31T12:47:01Z Abstract Climate‐induced changes in the ocean and sea ice environment of the Arctic are beginning to generate major and rapid changes in Arctic ecosystems, but the effects of directional forcing on the persistence and distribution of species remain poorly understood. Here, we examine the reproductive traits and population dynamics of the bivalve Astarte crenata and sea star Ctenodiscus crispatus across a north–south transect that intersects the polar front in the Barents Sea. Both species present large oocytes indicative of short pelagic or direct development that do not differ in size–frequency between 74.5 and 81.3º latitude. However, despite gametogenic maturity, we found low frequencies of certain size classes within populations that may indicate periodic recruitment failure. We suggest that recruitment of A. crenata could occur periodically when conditions are favorable, while populations of C. crispatus are characterized by episodic recruitment failures. Pyloric caeca indices in C. crispatus show that food uptake is greatest at, and north of, the polar front, providing credence to the view that interannual variations in the quantity and quality of primary production and its flux to the seafloor, linked to the variable extent and thickness of sea ice, are likely to be strong determinants of physiological fitness. Our findings provide evidence that the distribution and long‐term survival of species is not only a simple function of adaptive capacity to specific environmental changes, but will also be contingent on the frequency and occurrence of years where environmental conditions support reproduction and settlement. Article in Journal/Newspaper Arctic Barents Sea Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Barents Sea Ecology and Evolution 11 11 6900 6912 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
functional biogeography gametogenesis interannual variability life history reproductive plasticity Ecology QH540-549.5 |
spellingShingle |
functional biogeography gametogenesis interannual variability life history reproductive plasticity Ecology QH540-549.5 Adam J. Reed Jasmin A. Godbold Martin Solan Laura J. Grange Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front |
topic_facet |
functional biogeography gametogenesis interannual variability life history reproductive plasticity Ecology QH540-549.5 |
description |
Abstract Climate‐induced changes in the ocean and sea ice environment of the Arctic are beginning to generate major and rapid changes in Arctic ecosystems, but the effects of directional forcing on the persistence and distribution of species remain poorly understood. Here, we examine the reproductive traits and population dynamics of the bivalve Astarte crenata and sea star Ctenodiscus crispatus across a north–south transect that intersects the polar front in the Barents Sea. Both species present large oocytes indicative of short pelagic or direct development that do not differ in size–frequency between 74.5 and 81.3º latitude. However, despite gametogenic maturity, we found low frequencies of certain size classes within populations that may indicate periodic recruitment failure. We suggest that recruitment of A. crenata could occur periodically when conditions are favorable, while populations of C. crispatus are characterized by episodic recruitment failures. Pyloric caeca indices in C. crispatus show that food uptake is greatest at, and north of, the polar front, providing credence to the view that interannual variations in the quantity and quality of primary production and its flux to the seafloor, linked to the variable extent and thickness of sea ice, are likely to be strong determinants of physiological fitness. Our findings provide evidence that the distribution and long‐term survival of species is not only a simple function of adaptive capacity to specific environmental changes, but will also be contingent on the frequency and occurrence of years where environmental conditions support reproduction and settlement. |
format |
Article in Journal/Newspaper |
author |
Adam J. Reed Jasmin A. Godbold Martin Solan Laura J. Grange |
author_facet |
Adam J. Reed Jasmin A. Godbold Martin Solan Laura J. Grange |
author_sort |
Adam J. Reed |
title |
Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front |
title_short |
Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front |
title_full |
Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front |
title_fullStr |
Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front |
title_full_unstemmed |
Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front |
title_sort |
reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an arctic polar front |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1002/ece3.7539 https://doaj.org/article/a488740134244fb398ff17a51b4f9932 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Sea ice |
genre_facet |
Arctic Barents Sea Sea ice |
op_source |
Ecology and Evolution, Vol 11, Iss 11, Pp 6900-6912 (2021) |
op_relation |
https://doi.org/10.1002/ece3.7539 https://doaj.org/toc/2045-7758 2045-7758 doi:10.1002/ece3.7539 https://doaj.org/article/a488740134244fb398ff17a51b4f9932 |
op_doi |
https://doi.org/10.1002/ece3.7539 |
container_title |
Ecology and Evolution |
container_volume |
11 |
container_issue |
11 |
container_start_page |
6900 |
op_container_end_page |
6912 |
_version_ |
1766326515152191488 |