Recording plant status and regeneration during single visits
Recording plant status and regeneration during single visits
Information on the origin (status) and regeneration of plant species improves our understanding of native distributions and the establishment of non-native species. However, current categories used to record status in Britain and Ireland, whilst conceptually informative, rely on a knowledge of persistence that is impossible to assess objectively during a single (one-off) recording visit. We propose five alternative categories that focus on origin (how a species arrived at a site) rather than persistence. The first two categories apply to nationally native taxa: (1) populations that are unequivocally native and (2) those that are likely to have been introduced and/or are spreading for reasons that are obscure. The other three categories cover the occurrences of any taxon, native or non-native, that is known or suspected to have been introduced to a site: (3) introductions with unknown/obscure origins; (4) deliberate introductions; and (5) accidental introductions. For the introduced categories 3-5 we recommend that botanists also record signs of regeneration, i.e. seedlings or widely scattered patches, as a more objective measure whether a species is likely to be self-sustaining in a given locality.
establishment, invasive, non-native, origin
283-291
Walker, Kevin J
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Leach, Simon J.
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Preston, Christopher D.
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Humphrey, Thomas A.
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James, Trevor J.
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Pearman, David A.
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Smith, Paul A.
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14 December 2019
Walker, Kevin J
92d5e737-555f-4384-899f-f80f21397ada
Leach, Simon J.
f2a250fd-ccd7-48b5-834b-1672eaf80604
Preston, Christopher D.
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Humphrey, Thomas A.
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James, Trevor J.
9be9d402-4be7-4b3c-916b-4c685fd3b838
Pearman, David A.
b0f6c8a9-3ae1-4b4a-8145-58304c2b9c54
Smith, Paul A.
a2548525-4f99-4baf-a4d0-2b216cce059c
Walker, Kevin J, Leach, Simon J., Preston, Christopher D., Humphrey, Thomas A., James, Trevor J., Pearman, David A. and Smith, Paul A.
(2019)
Recording plant status and regeneration during single visits.
British and Irish Botany, 1 (4), .
(doi:10.33928/bib.2019.01.283).
Abstract
Information on the origin (status) and regeneration of plant species improves our understanding of native distributions and the establishment of non-native species. However, current categories used to record status in Britain and Ireland, whilst conceptually informative, rely on a knowledge of persistence that is impossible to assess objectively during a single (one-off) recording visit. We propose five alternative categories that focus on origin (how a species arrived at a site) rather than persistence. The first two categories apply to nationally native taxa: (1) populations that are unequivocally native and (2) those that are likely to have been introduced and/or are spreading for reasons that are obscure. The other three categories cover the occurrences of any taxon, native or non-native, that is known or suspected to have been introduced to a site: (3) introductions with unknown/obscure origins; (4) deliberate introductions; and (5) accidental introductions. For the introduced categories 3-5 we recommend that botanists also record signs of regeneration, i.e. seedlings or widely scattered patches, as a more objective measure whether a species is likely to be self-sustaining in a given locality.
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Accepted/In Press date: 21 November 2019
e-pub ahead of print date: 14 December 2019
Published date: 14 December 2019
Keywords:
establishment, invasive, non-native, origin
Identifiers
Local EPrints ID: 436785
URI: http://eprints.soton.ac.uk/id/eprint/436785
ISSN: 2632-4970
PURE UUID: 9dfcf0b5-8aec-42a0-bf41-9bd8ca9eb85a
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Date deposited: 08 Jan 2020 17:33
Last modified: 17 Mar 2024 03:36
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Contributors
Author:
Kevin J Walker
Author:
Simon J. Leach
Author:
Christopher D. Preston
Author:
Thomas A. Humphrey
Author:
Trevor J. James
Author:
David A. Pearman
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