Linking functional traits and species preferences to species’ abundance and occupancy trends through time to identify habitat changes in coastal ecosystems

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Linking functional traits and species preferences to species’ abundance and occupancy trends through time to identify habitat changes in coastal ecosystems. / Pakeman, Robin J.; Hewison, Richard; Lewis, Robert John.

In: Perspectives in Plant Ecology, Evolution and Systematics, Vol. 27, 2017, p. 35-44.

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Pakeman, Robin J. ; Hewison, Richard ; Lewis, Robert John. / Linking functional traits and species preferences to species’ abundance and occupancy trends through time to identify habitat changes in coastal ecosystems. In: Perspectives in Plant Ecology, Evolution and Systematics. 2017 ; Vol. 27. pp. 35-44.

Bibtex

@article{864804c20fa74dcfbfd8ebe7558c135c,
title = "Linking functional traits and species preferences to species’ abundance and occupancy trends through time to identify habitat changes in coastal ecosystems",
abstract = "Coastal habitats are rich in biodiversity and provide highly valued ecosystem services. However, they are subject to many environmental drivers that can have severe impacts on these inherently fragile ecosystems. A resurvey approach was used to assess changes in species’ abundances and occupancy on sand dunes and machair in Scotland, UK to assess how this could impact on this set of habitats. These were assessed to see if increasers and decreasers shared common trait values, if trends were similar to other terrestrial habitats and if responses to environmental drivers were modulated by traits. In general, there has been a shift towards taller species with more exploitative growth forms and an increase in indicators of unfavourable habitat condition according to criteria for assessing sites designated for nature protection as part of the EU Natura 2000 network, particularly tall grasses characteristic of nutrient-rich conditions exemplified by Arrhenatherum elatius. Coastal heathlands have been particularly affected by the increase in species such as Betula spp. and Pteridium aquilinum which can dominate and exclude other heathland species. On average, increasing species were both more common nationally and increasing nationally, suggesting increasing homogenisation between sand dunes/machair and other terrestrial habitats. Changes have been faster and more negative in conservation terms in cooler, drier and more polluted sites (mainly on the east coast of Scotland) and also in sites which had seen reductions in grazing. Reinstating grazing could counteract some of the negative impacts of eutrophication, but this could prove problematic to integrate with recreational activities and the largely arable based farming systems adjacent to these sites.",
keywords = "Abandonment, Succession, Eutrophication, Grazing, Machair",
author = "Pakeman, {Robin J.} and Richard Hewison and Lewis, {Robert John}",
year = "2017",
doi = "10.1016/j.ppees.2017.06.002",
language = "English",
volume = "27",
pages = "35--44",
journal = "Perspectives in Plant Ecology, Evolution and Systematics",
issn = "1433-8319",
publisher = "Elsevier GmbH - Urban und Fischer",

}

RIS

TY - JOUR

T1 - Linking functional traits and species preferences to species’ abundance and occupancy trends through time to identify habitat changes in coastal ecosystems

AU - Pakeman, Robin J.

AU - Hewison, Richard

AU - Lewis, Robert John

PY - 2017

Y1 - 2017

N2 - Coastal habitats are rich in biodiversity and provide highly valued ecosystem services. However, they are subject to many environmental drivers that can have severe impacts on these inherently fragile ecosystems. A resurvey approach was used to assess changes in species’ abundances and occupancy on sand dunes and machair in Scotland, UK to assess how this could impact on this set of habitats. These were assessed to see if increasers and decreasers shared common trait values, if trends were similar to other terrestrial habitats and if responses to environmental drivers were modulated by traits. In general, there has been a shift towards taller species with more exploitative growth forms and an increase in indicators of unfavourable habitat condition according to criteria for assessing sites designated for nature protection as part of the EU Natura 2000 network, particularly tall grasses characteristic of nutrient-rich conditions exemplified by Arrhenatherum elatius. Coastal heathlands have been particularly affected by the increase in species such as Betula spp. and Pteridium aquilinum which can dominate and exclude other heathland species. On average, increasing species were both more common nationally and increasing nationally, suggesting increasing homogenisation between sand dunes/machair and other terrestrial habitats. Changes have been faster and more negative in conservation terms in cooler, drier and more polluted sites (mainly on the east coast of Scotland) and also in sites which had seen reductions in grazing. Reinstating grazing could counteract some of the negative impacts of eutrophication, but this could prove problematic to integrate with recreational activities and the largely arable based farming systems adjacent to these sites.

AB - Coastal habitats are rich in biodiversity and provide highly valued ecosystem services. However, they are subject to many environmental drivers that can have severe impacts on these inherently fragile ecosystems. A resurvey approach was used to assess changes in species’ abundances and occupancy on sand dunes and machair in Scotland, UK to assess how this could impact on this set of habitats. These were assessed to see if increasers and decreasers shared common trait values, if trends were similar to other terrestrial habitats and if responses to environmental drivers were modulated by traits. In general, there has been a shift towards taller species with more exploitative growth forms and an increase in indicators of unfavourable habitat condition according to criteria for assessing sites designated for nature protection as part of the EU Natura 2000 network, particularly tall grasses characteristic of nutrient-rich conditions exemplified by Arrhenatherum elatius. Coastal heathlands have been particularly affected by the increase in species such as Betula spp. and Pteridium aquilinum which can dominate and exclude other heathland species. On average, increasing species were both more common nationally and increasing nationally, suggesting increasing homogenisation between sand dunes/machair and other terrestrial habitats. Changes have been faster and more negative in conservation terms in cooler, drier and more polluted sites (mainly on the east coast of Scotland) and also in sites which had seen reductions in grazing. Reinstating grazing could counteract some of the negative impacts of eutrophication, but this could prove problematic to integrate with recreational activities and the largely arable based farming systems adjacent to these sites.

KW - Abandonment

KW - Succession

KW - Eutrophication

KW - Grazing

KW - Machair

U2 - 10.1016/j.ppees.2017.06.002

DO - 10.1016/j.ppees.2017.06.002

M3 - Journal article

VL - 27

SP - 35

EP - 44

JO - Perspectives in Plant Ecology, Evolution and Systematics

JF - Perspectives in Plant Ecology, Evolution and Systematics

SN - 1433-8319

ER -