Ghent University Academic Bibliography

Advanced

Metapopulation viability of an endangered holoparasitic plant in a dynamic landscape

Klaar Meulebrouck UGent, Kris Verheyen UGent, Rein Brys UGent and Martin Hermy UGent (2009) ECOGRAPHY. 32(6). p.1040-1050
abstract
By creating transient patch mosaics, disturbance can influence the dynamics of interacting populations in many ecosystems. In European heathland, traditional land use created such dynamic systems favourable for both early and later successional species. Little empirical evidence is, however, available on the impact of current management on metapopulations occurring in such landscapes. This paper looks at the metapopulation viability of the endangered holoparasite Cuscuta epithymum, a species that typically occurs in early successional stages of recently managed heathlands. We used both observational and experimental data from a 4-yr study to parameterise a spatially explicit metapopulation model. This model explores the impact of demographic characteristics and spatiotemporal landscape patterns created by management events on metapopulation viability. Both occasional long-distance dispersal and dormant seeds are shown to be critical for the long-term survival of C. epithymum in a dynamic heathland landscape subjected to a fixed rotational mowing of 15 yr. A relatively high management frequency (< 15 yr between two consecutive mowing events) appeared to be necessary to sustain a viable C. epithymum metapopulation. When there is a longer interval between management events, grazing can counterbalance the negative effects of vegetation succession. Our results indicate that small-scale cyclical management events combined with extensive grazing are the most appropriate management strategy to maintain viable populations of C. epithymum instead of the current large-scale management events. Our results further emphasise the importance of incorporating both spatiotemporal patch availability and key demographic characteristics, especially seed banks, for a realistic view of metapopulation dynamics in disturbed landscapes. This study clearly demonstrates the usefulness of metapopulation models to understand the impact of management events and to provide new ecological insights into processes acting at a landscape scale.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
NORTH-WESTERN BELGIUM, HEATHLANDS, CUSCUTA-EPITHYMUM, SEED DISPERSAL, MANAGEMENT, PERSISTENCE, VEGETATION, MODEL, RESTORATION, GRASSLAND
journal title
ECOGRAPHY
Ecography
volume
32
issue
6
pages
1040 - 1050
Web of Science type
Article
Web of Science id
000272653500015
JCR category
BIODIVERSITY CONSERVATION
JCR impact factor
4.385 (2009)
JCR rank
3/28 (2009)
JCR quartile
1 (2009)
ISSN
0906-7590
DOI
10.1111/j.1600-0587.2009.05861.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
851611
handle
http://hdl.handle.net/1854/LU-851611
date created
2010-02-04 13:33:49
date last changed
2010-02-10 17:25:31
@article{851611,
  abstract     = {By creating transient patch mosaics, disturbance can influence the dynamics of interacting populations in many ecosystems. In European heathland, traditional land use created such dynamic systems favourable for both early and later successional species. Little empirical evidence is, however, available on the impact of current management on metapopulations occurring in such landscapes. This paper looks at the metapopulation viability of the endangered holoparasite Cuscuta epithymum, a species that typically occurs in early successional stages of recently managed heathlands. We used both observational and experimental data from a 4-yr study to parameterise a spatially explicit metapopulation model. This model explores the impact of demographic characteristics and spatiotemporal landscape patterns created by management events on metapopulation viability. Both occasional long-distance dispersal and dormant seeds are shown to be critical for the long-term survival of C. epithymum in a dynamic heathland landscape subjected to a fixed rotational mowing of 15 yr. A relatively high management frequency ({\textlangle} 15 yr between two consecutive mowing events) appeared to be necessary to sustain a viable C. epithymum metapopulation. When there is a longer interval between management events, grazing can counterbalance the negative effects of vegetation succession. Our results indicate that small-scale cyclical management events combined with extensive grazing are the most appropriate management strategy to maintain viable populations of C. epithymum instead of the current large-scale management events. Our results further emphasise the importance of incorporating both spatiotemporal patch availability and key demographic characteristics, especially seed banks, for a realistic view of metapopulation dynamics in disturbed landscapes. This study clearly demonstrates the usefulness of metapopulation models to understand the impact of management events and to provide new ecological insights into processes acting at a landscape scale.},
  author       = {Meulebrouck, Klaar and Verheyen, Kris and Brys, Rein and Hermy, Martin},
  issn         = {0906-7590},
  journal      = {ECOGRAPHY},
  keyword      = {NORTH-WESTERN BELGIUM,HEATHLANDS,CUSCUTA-EPITHYMUM,SEED DISPERSAL,MANAGEMENT,PERSISTENCE,VEGETATION,MODEL,RESTORATION,GRASSLAND},
  language     = {eng},
  number       = {6},
  pages        = {1040--1050},
  title        = {Metapopulation viability of an endangered holoparasitic plant in a dynamic landscape},
  url          = {http://dx.doi.org/10.1111/j.1600-0587.2009.05861.x},
  volume       = {32},
  year         = {2009},
}

Chicago
Meulebrouck, Klaar, Kris Verheyen, Rein Brys, and Martin Hermy. 2009. “Metapopulation Viability of an Endangered Holoparasitic Plant in a Dynamic Landscape.” Ecography 32 (6): 1040–1050.
APA
Meulebrouck, K., Verheyen, K., Brys, R., & Hermy, M. (2009). Metapopulation viability of an endangered holoparasitic plant in a dynamic landscape. ECOGRAPHY, 32(6), 1040–1050.
Vancouver
1.
Meulebrouck K, Verheyen K, Brys R, Hermy M. Metapopulation viability of an endangered holoparasitic plant in a dynamic landscape. ECOGRAPHY. 2009;32(6):1040–50.
MLA
Meulebrouck, Klaar, Kris Verheyen, Rein Brys, et al. “Metapopulation Viability of an Endangered Holoparasitic Plant in a Dynamic Landscape.” ECOGRAPHY 32.6 (2009): 1040–1050. Print.