Change and causes of change in the vascular plant flora of Ireland: 1970–1999

Duncan McCollin, Eva Geraghty

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The analysis of decadal change in regional floras has received fresh impetus in recent years with studies often detecting anthropogenic effects and biotic homogenization. Here we analyse the changing flora of the island of Ireland (i.e., both the Republic and Northern Ireland) using data derived from the New Atlas of the British Flora (Preston et al., 2002) to compare changing plant status from the previous national plant atlas of Perring and Walters (1962). We compare the number of 10 x 10 km grid squares occupied by individual plant species and enter these into a regression analysis. The null hypothesis assumes that all the species will be located on the line of best fit hence the resulting residuals are used as an Index of Change. This Index was entered into correlation analysis with independent environmental indicators to interpret the potential causes of any change. Despite some potential sampling bias in the data the findings point to several factors being implicated in change with eutrophication being a major correlate of change. This finding is discussed in relation to land use change and agricultural intensification over the period of the survey.
Original languageEnglish
JournalBiology and Environment: Proceedings of the Royal Irish Academy
Volume115B
Issue number1 2015
DOIs
Publication statusPublished - 30 May 2015

Fingerprint

vascular plant
flora
atlas
sampling bias
agricultural intensification
environmental indicator
anthropogenic effect
land use change
eutrophication
regression analysis
analysis
index

Keywords

  • Ellenberg
  • Flora
  • Ireland
  • acidification
  • archaeophyte
  • eutrophication
  • neophyte

Cite this

@article{85c3181b0f044a4b96fb25b9b10cba86,
title = "Change and causes of change in the vascular plant flora of Ireland: 1970–1999",
abstract = "The analysis of decadal change in regional floras has received fresh impetus in recent years with studies often detecting anthropogenic effects and biotic homogenization. Here we analyse the changing flora of the island of Ireland (i.e., both the Republic and Northern Ireland) using data derived from the New Atlas of the British Flora (Preston et al., 2002) to compare changing plant status from the previous national plant atlas of Perring and Walters (1962). We compare the number of 10 x 10 km grid squares occupied by individual plant species and enter these into a regression analysis. The null hypothesis assumes that all the species will be located on the line of best fit hence the resulting residuals are used as an Index of Change. This Index was entered into correlation analysis with independent environmental indicators to interpret the potential causes of any change. Despite some potential sampling bias in the data the findings point to several factors being implicated in change with eutrophication being a major correlate of change. This finding is discussed in relation to land use change and agricultural intensification over the period of the survey.",
keywords = "Ellenberg, Flora, Ireland, acidification, archaeophyte, eutrophication, neophyte",
author = "Duncan McCollin and Eva Geraghty",
year = "2015",
month = "5",
day = "30",
doi = "10.3318/BIOE.2015.08",
language = "English",
volume = "115B",
journal = "Biology and Environment: Proceedings of the Royal Irish Academy",
issn = "0791-7945",
publisher = "Royal Irish Academy",
number = "1 2015",

}

Change and causes of change in the vascular plant flora of Ireland: 1970–1999. / McCollin, Duncan; Geraghty, Eva.

In: Biology and Environment: Proceedings of the Royal Irish Academy, Vol. 115B, No. 1 2015, 30.05.2015.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Change and causes of change in the vascular plant flora of Ireland: 1970–1999

AU - McCollin, Duncan

AU - Geraghty, Eva

PY - 2015/5/30

Y1 - 2015/5/30

N2 - The analysis of decadal change in regional floras has received fresh impetus in recent years with studies often detecting anthropogenic effects and biotic homogenization. Here we analyse the changing flora of the island of Ireland (i.e., both the Republic and Northern Ireland) using data derived from the New Atlas of the British Flora (Preston et al., 2002) to compare changing plant status from the previous national plant atlas of Perring and Walters (1962). We compare the number of 10 x 10 km grid squares occupied by individual plant species and enter these into a regression analysis. The null hypothesis assumes that all the species will be located on the line of best fit hence the resulting residuals are used as an Index of Change. This Index was entered into correlation analysis with independent environmental indicators to interpret the potential causes of any change. Despite some potential sampling bias in the data the findings point to several factors being implicated in change with eutrophication being a major correlate of change. This finding is discussed in relation to land use change and agricultural intensification over the period of the survey.

AB - The analysis of decadal change in regional floras has received fresh impetus in recent years with studies often detecting anthropogenic effects and biotic homogenization. Here we analyse the changing flora of the island of Ireland (i.e., both the Republic and Northern Ireland) using data derived from the New Atlas of the British Flora (Preston et al., 2002) to compare changing plant status from the previous national plant atlas of Perring and Walters (1962). We compare the number of 10 x 10 km grid squares occupied by individual plant species and enter these into a regression analysis. The null hypothesis assumes that all the species will be located on the line of best fit hence the resulting residuals are used as an Index of Change. This Index was entered into correlation analysis with independent environmental indicators to interpret the potential causes of any change. Despite some potential sampling bias in the data the findings point to several factors being implicated in change with eutrophication being a major correlate of change. This finding is discussed in relation to land use change and agricultural intensification over the period of the survey.

KW - Ellenberg

KW - Flora

KW - Ireland

KW - acidification

KW - archaeophyte

KW - eutrophication

KW - neophyte

UR - http://www.jstor.org/stable/10.3318/115b.1.2015

U2 - 10.3318/BIOE.2015.08

DO - 10.3318/BIOE.2015.08

M3 - Article

VL - 115B

JO - Biology and Environment: Proceedings of the Royal Irish Academy

JF - Biology and Environment: Proceedings of the Royal Irish Academy

SN - 0791-7945

IS - 1 2015

ER -