Woody plant colonization in an experimentally fragmented landscape

Woody plant colonization in an experimentally fragmented landscape The pattern of distribution and abundance of woody plants colonizing old fields is influenced by landscape spatial features, in particular, by the distance from the old field to propagule sources and the size of the habitat patches undergoing succession. Colonization is also influenced by species life history traits, such as dispersal mode, growth form, and fecundity. As part of a long‐term project studying effects of habitat fragmentation on secondary succession at the prairie‐forest ecotone, we have examined the colonization patterns of early‐successional woody plants in an experimentally fragmented old field, with emphasis on the three woody species (Cornus drummondii C. A. Mey (rough‐leaved dogwood), Ulmus rubra Muhl. (slippery elm), and Juniperus virginiana L. (red cedar)), which currently dominate the woody community on the site. The shapes of the colonization curve (proportion of colonized quadrats vs time) differed between C. drummondii and U. rubra. The rate of colonization by C. drummondii showed a pattern of acceleration after its initial colonization, consistent with rapid in situ recruitment from clonal growth and early seed production. By contrast, colonization by U. rubra fits a roughly linear pattern, consistent with recruitment only from external propagule sources. For both C. drummondii and U. rubra, density is currently greater in large patches than in small patches. No patch size difference was found for J. virginiana. The stern density of both C. drummondii and U. rubra exponentially decreased with distance to external propagule sources. The negative exponential pattern of U. rubra (wind‐dispersed) with distance is sharper than that of C drummondii (bird‐dispersed). Moreover, the amount of spatial variation in density explained by distance to source is greater on small patches. Our results highlight the importance of life history traits of colonizing species and spatial aspects of habitat during succession. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ecography Wiley

Woody plant colonization in an experimentally fragmented landscape

Loading next page...
 
/lp/wiley/woody-plant-colonization-in-an-experimentally-fragmented-landscape-YDVqX20pQ0
Publisher
Wiley
Copyright
Copyright © 1999 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0906-7590
eISSN
1600-0587
DOI
10.1111/j.1600-0587.1999.tb00521.x
Publisher site
See Article on Publisher Site

Abstract

The pattern of distribution and abundance of woody plants colonizing old fields is influenced by landscape spatial features, in particular, by the distance from the old field to propagule sources and the size of the habitat patches undergoing succession. Colonization is also influenced by species life history traits, such as dispersal mode, growth form, and fecundity. As part of a long‐term project studying effects of habitat fragmentation on secondary succession at the prairie‐forest ecotone, we have examined the colonization patterns of early‐successional woody plants in an experimentally fragmented old field, with emphasis on the three woody species (Cornus drummondii C. A. Mey (rough‐leaved dogwood), Ulmus rubra Muhl. (slippery elm), and Juniperus virginiana L. (red cedar)), which currently dominate the woody community on the site. The shapes of the colonization curve (proportion of colonized quadrats vs time) differed between C. drummondii and U. rubra. The rate of colonization by C. drummondii showed a pattern of acceleration after its initial colonization, consistent with rapid in situ recruitment from clonal growth and early seed production. By contrast, colonization by U. rubra fits a roughly linear pattern, consistent with recruitment only from external propagule sources. For both C. drummondii and U. rubra, density is currently greater in large patches than in small patches. No patch size difference was found for J. virginiana. The stern density of both C. drummondii and U. rubra exponentially decreased with distance to external propagule sources. The negative exponential pattern of U. rubra (wind‐dispersed) with distance is sharper than that of C drummondii (bird‐dispersed). Moreover, the amount of spatial variation in density explained by distance to source is greater on small patches. Our results highlight the importance of life history traits of colonizing species and spatial aspects of habitat during succession.

Journal

EcographyWiley

Published: Dec 1, 1999

References

  • Biological consequences of ecosystem fragmentation: a review
    Saunders, Saunders; Hobbs, Hobbs; Margules, Margules

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off