Niche breadth and biodiversity change derived from marine Amphipoda species off Iceland

Abstract Understanding the ecological requirements and thresholds of individual species is crucial to better predict potential outcomes of climate change on species distribution. In particular, species optima and lower and upper limits along resource gradients require attention. Based on Huisman‐Olf...

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Main Authors: Anne‐Nina Lörz, Jens Oldeland, Stefanie Kaiser
Format: Article
Language:English
Published: Wiley 2022-04-01
Series:Ecology and Evolution
Subjects:
Online Access:https://doi.org/10.1002/ece3.8802
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author Anne‐Nina Lörz
Jens Oldeland
Stefanie Kaiser
author_facet Anne‐Nina Lörz
Jens Oldeland
Stefanie Kaiser
author_sort Anne‐Nina Lörz
collection DOAJ
description Abstract Understanding the ecological requirements and thresholds of individual species is crucial to better predict potential outcomes of climate change on species distribution. In particular, species optima and lower and upper limits along resource gradients require attention. Based on Huisman‐Olff‐Fresco (HOF) models, we determined species‐specific responses along gradients of nine environmental parameters including depth in order to estimate niche attributes of 30 deep‐sea benthic amphipods occurring around Iceland. We, furthermore, examined the relationships between niche breadth, occupancy, and geographic range assuming that species with a wider niche are spatially more widely dispersed and vice versa. Overall, our results reveal that species react very differently to environmental gradients, which is independent of the family affiliation of the respective species. We could infer a strong relationship between occupancy and geographic range and also relate this to differences in niche breadth; that is specialist species with a narrow niche had a more limited distribution and may thus be more threatened by changing environmental conditions than generalist species, which are more widespread. Given the preponderance of rare species in the deep sea, this implies that many species could be at risk. However, this must be carefully weighed against geographical data gaps in this area, given that many deep‐sea areas are severely undersampled and the true distribution of most species is unknown. After all, our results underline that an accurate taxonomic classification is of crucial importance, without which ecological niche properties cannot be determined and which is hence fundamental for the assessment and understanding of changes in biodiversity in the face of increasing human perturbations.
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spelling doaj.art-75f6e27211084be1a5e45e28a0efd6552023-02-15T09:01:28ZengWileyEcology and Evolution2045-77582022-04-01124n/an/a10.1002/ece3.8802Niche breadth and biodiversity change derived from marine Amphipoda species off IcelandAnne‐Nina Lörz0Jens Oldeland1Stefanie Kaiser2Institute for Marine Ecosystems and Fisheries Science Center for Earth System Research and Sustainability (CEN) Universität Hamburg Hamburg GermanyEco‐Systems Hamburg GermanyDepartment of Invertebrate Zoology and Hydrobiology Faculty of Biology and Environmental Protection University of Łódź Łódź PolandAbstract Understanding the ecological requirements and thresholds of individual species is crucial to better predict potential outcomes of climate change on species distribution. In particular, species optima and lower and upper limits along resource gradients require attention. Based on Huisman‐Olff‐Fresco (HOF) models, we determined species‐specific responses along gradients of nine environmental parameters including depth in order to estimate niche attributes of 30 deep‐sea benthic amphipods occurring around Iceland. We, furthermore, examined the relationships between niche breadth, occupancy, and geographic range assuming that species with a wider niche are spatially more widely dispersed and vice versa. Overall, our results reveal that species react very differently to environmental gradients, which is independent of the family affiliation of the respective species. We could infer a strong relationship between occupancy and geographic range and also relate this to differences in niche breadth; that is specialist species with a narrow niche had a more limited distribution and may thus be more threatened by changing environmental conditions than generalist species, which are more widespread. Given the preponderance of rare species in the deep sea, this implies that many species could be at risk. However, this must be carefully weighed against geographical data gaps in this area, given that many deep‐sea areas are severely undersampled and the true distribution of most species is unknown. After all, our results underline that an accurate taxonomic classification is of crucial importance, without which ecological niche properties cannot be determined and which is hence fundamental for the assessment and understanding of changes in biodiversity in the face of increasing human perturbations.https://doi.org/10.1002/ece3.8802climate changedistributional shiftsHuisman‐Olff‐Fresco modellingmarine AmphipodaNordic seasrange–occupancy relationship
spellingShingle Anne‐Nina Lörz
Jens Oldeland
Stefanie Kaiser
Niche breadth and biodiversity change derived from marine Amphipoda species off Iceland
Ecology and Evolution
climate change
distributional shifts
Huisman‐Olff‐Fresco modelling
marine Amphipoda
Nordic seas
range–occupancy relationship
title Niche breadth and biodiversity change derived from marine Amphipoda species off Iceland
title_full Niche breadth and biodiversity change derived from marine Amphipoda species off Iceland
title_fullStr Niche breadth and biodiversity change derived from marine Amphipoda species off Iceland
title_full_unstemmed Niche breadth and biodiversity change derived from marine Amphipoda species off Iceland
title_short Niche breadth and biodiversity change derived from marine Amphipoda species off Iceland
title_sort niche breadth and biodiversity change derived from marine amphipoda species off iceland
topic climate change
distributional shifts
Huisman‐Olff‐Fresco modelling
marine Amphipoda
Nordic seas
range–occupancy relationship
url https://doi.org/10.1002/ece3.8802
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AT jensoldeland nichebreadthandbiodiversitychangederivedfrommarineamphipodaspeciesofficeland
AT stefaniekaiser nichebreadthandbiodiversitychangederivedfrommarineamphipodaspeciesofficeland