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Assessing trends in biodiversity over space and time using the example of British breeding birds

Research output: Contribution to journalArticle

DOI

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Assessing trends in biodiversity over space and time using the example of British breeding birds. / Harrison, P.J.; Buckland, S.T.; Yuan, Y.; Elston, D.A.; Brewer, M.J.; Johnston, A.; Pearce-Higgins, J.W.

In: Journal of Applied Ecology, Vol. 51, No. 6, 12.2014, p. 1650-1660.

Research output: Contribution to journalArticle

Harvard

Harrison, PJ, Buckland, ST, Yuan, Y, Elston, DA, Brewer, MJ, Johnston, A & Pearce-Higgins, JW 2014, 'Assessing trends in biodiversity over space and time using the example of British breeding birds' Journal of Applied Ecology, vol. 51, no. 6, pp. 1650-1660. DOI: 10.1111/1365-2664.12316

APA

Harrison, P. J., Buckland, S. T., Yuan, Y., Elston, D. A., Brewer, M. J., Johnston, A., & Pearce-Higgins, J. W. (2014). Assessing trends in biodiversity over space and time using the example of British breeding birds. DOI: 10.1111/1365-2664.12316

Vancouver

Harrison PJ, Buckland ST, Yuan Y, Elston DA, Brewer MJ, Johnston A et al. Assessing trends in biodiversity over space and time using the example of British breeding birds. Journal of Applied Ecology. 2014 Dec;51(6):1650-1660. Available from, DOI: 10.1111/1365-2664.12316

Author

Harrison, P.J. ; Buckland, S.T. ; Yuan, Y. ; Elston, D.A. ; Brewer, M.J. ; Johnston, A. ; Pearce-Higgins, J.W./ Assessing trends in biodiversity over space and time using the example of British breeding birds. In: Journal of Applied Ecology. 2014 ; Vol. 51, No. 6. pp. 1650-1660

Bibtex - Download

@article{329b8aef24e74a65be39b7a351d2c5a8,
title = "Assessing trends in biodiversity over space and time using the example of British breeding birds",
abstract = "Partitioning biodiversity change spatially and temporally is required for effective management, both to determine whether action is required and whether it should be applied at a regional level or targeted more locally. As biodiversity is a multifaceted concept, comparative analyses of different indices, focussing on different components of biodiversity change (evenness vs. abundance), give better information than a single headline index. We model changes in the spatial and temporal distribution of British breeding birds using generalized additive models applied to count data collected between 1994 and 2011. Abundance estimates, accounting for differences in detectability, are then used in community-specific (farmland and woodland) biodiversity indices. Temporal trends in biodiversity, and change points in those trends, are assessed at different spatial scales. The geometric mean of relative abundance, a headline indicator of biodiversity change, is assessed together with a goodness-of-fit evenness measure focussing separately on the rare and common species in the communities. Our analysis reveals predominantly declining trends in biodiversity indices for farmland and woodland bird communities in southern and eastern England, perhaps signalling environmental deterioration in this part of the country. Conversely, our results also show generally more positive trends in the north of Britain, consistent with north-south gradient expectations from the effects of climate change. We also reveal predominantly positive changes in evenness for the common species and negative changes in evenness for the rarer species in the communities, consistent with previously documented homogenization in bird communities. Synthesis and applications. Bird populations are seen as good indicators of ecosystem health, and trends for different communities can be indicative of wider biodiversity changes within their respective habitats. However, temporal trends in biodiversity at the national level may miss opposing trends occurring at different locations within the nation. We develop methods that allow assessment of how temporal trends vary spatially and whether these trends differ for the rare and common species in the respective communities. Our methods may be used to test hypotheses about the processes that generate the trends. Bird populations are seen as good indicators of ecosystem health, and trends for different communities can be indicative of wider biodiversity changes within their respective habitats. However, temporal trends in biodiversity at the national level may miss opposing trends occurring at different locations within the nation. We develop methods that allow assessment of how temporal trends vary spatially and whether these trends differ for the rare and common species in the respective communities. Our methods may be used to test hypotheses about the processes that generate the trends.",
keywords = "Change points in trends, Generalized additive models, Geometric mean index, Good-of-fit measures, Long-term trends, Rare species, Spatio-temporal modelling",
author = "P.J. Harrison and S.T. Buckland and Y. Yuan and D.A. Elston and M.J. Brewer and A. Johnston and J.W. Pearce-Higgins",
year = "2014",
month = "12",
doi = "10.1111/1365-2664.12316",
language = "English",
volume = "51",
pages = "1650--1660",
journal = "Journal of Applied Ecology",
issn = "0021-8901",
publisher = "Wiley-Blackwell",
number = "6",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Assessing trends in biodiversity over space and time using the example of British breeding birds

AU - Harrison,P.J.

AU - Buckland,S.T.

AU - Yuan,Y.

AU - Elston,D.A.

AU - Brewer,M.J.

AU - Johnston,A.

AU - Pearce-Higgins,J.W.

PY - 2014/12

Y1 - 2014/12

N2 - Partitioning biodiversity change spatially and temporally is required for effective management, both to determine whether action is required and whether it should be applied at a regional level or targeted more locally. As biodiversity is a multifaceted concept, comparative analyses of different indices, focussing on different components of biodiversity change (evenness vs. abundance), give better information than a single headline index. We model changes in the spatial and temporal distribution of British breeding birds using generalized additive models applied to count data collected between 1994 and 2011. Abundance estimates, accounting for differences in detectability, are then used in community-specific (farmland and woodland) biodiversity indices. Temporal trends in biodiversity, and change points in those trends, are assessed at different spatial scales. The geometric mean of relative abundance, a headline indicator of biodiversity change, is assessed together with a goodness-of-fit evenness measure focussing separately on the rare and common species in the communities. Our analysis reveals predominantly declining trends in biodiversity indices for farmland and woodland bird communities in southern and eastern England, perhaps signalling environmental deterioration in this part of the country. Conversely, our results also show generally more positive trends in the north of Britain, consistent with north-south gradient expectations from the effects of climate change. We also reveal predominantly positive changes in evenness for the common species and negative changes in evenness for the rarer species in the communities, consistent with previously documented homogenization in bird communities. Synthesis and applications. Bird populations are seen as good indicators of ecosystem health, and trends for different communities can be indicative of wider biodiversity changes within their respective habitats. However, temporal trends in biodiversity at the national level may miss opposing trends occurring at different locations within the nation. We develop methods that allow assessment of how temporal trends vary spatially and whether these trends differ for the rare and common species in the respective communities. Our methods may be used to test hypotheses about the processes that generate the trends. Bird populations are seen as good indicators of ecosystem health, and trends for different communities can be indicative of wider biodiversity changes within their respective habitats. However, temporal trends in biodiversity at the national level may miss opposing trends occurring at different locations within the nation. We develop methods that allow assessment of how temporal trends vary spatially and whether these trends differ for the rare and common species in the respective communities. Our methods may be used to test hypotheses about the processes that generate the trends.

AB - Partitioning biodiversity change spatially and temporally is required for effective management, both to determine whether action is required and whether it should be applied at a regional level or targeted more locally. As biodiversity is a multifaceted concept, comparative analyses of different indices, focussing on different components of biodiversity change (evenness vs. abundance), give better information than a single headline index. We model changes in the spatial and temporal distribution of British breeding birds using generalized additive models applied to count data collected between 1994 and 2011. Abundance estimates, accounting for differences in detectability, are then used in community-specific (farmland and woodland) biodiversity indices. Temporal trends in biodiversity, and change points in those trends, are assessed at different spatial scales. The geometric mean of relative abundance, a headline indicator of biodiversity change, is assessed together with a goodness-of-fit evenness measure focussing separately on the rare and common species in the communities. Our analysis reveals predominantly declining trends in biodiversity indices for farmland and woodland bird communities in southern and eastern England, perhaps signalling environmental deterioration in this part of the country. Conversely, our results also show generally more positive trends in the north of Britain, consistent with north-south gradient expectations from the effects of climate change. We also reveal predominantly positive changes in evenness for the common species and negative changes in evenness for the rarer species in the communities, consistent with previously documented homogenization in bird communities. Synthesis and applications. Bird populations are seen as good indicators of ecosystem health, and trends for different communities can be indicative of wider biodiversity changes within their respective habitats. However, temporal trends in biodiversity at the national level may miss opposing trends occurring at different locations within the nation. We develop methods that allow assessment of how temporal trends vary spatially and whether these trends differ for the rare and common species in the respective communities. Our methods may be used to test hypotheses about the processes that generate the trends. Bird populations are seen as good indicators of ecosystem health, and trends for different communities can be indicative of wider biodiversity changes within their respective habitats. However, temporal trends in biodiversity at the national level may miss opposing trends occurring at different locations within the nation. We develop methods that allow assessment of how temporal trends vary spatially and whether these trends differ for the rare and common species in the respective communities. Our methods may be used to test hypotheses about the processes that generate the trends.

KW - Change points in trends

KW - Generalized additive models

KW - Geometric mean index

KW - Good-of-fit measures

KW - Long-term trends

KW - Rare species

KW - Spatio-temporal modelling

U2 - 10.1111/1365-2664.12316

DO - 10.1111/1365-2664.12316

M3 - Article

VL - 51

SP - 1650

EP - 1660

JO - Journal of Applied Ecology

T2 - Journal of Applied Ecology

JF - Journal of Applied Ecology

SN - 0021-8901

IS - 6

ER -

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ID: 159416269