Plant distribution and dispersal mechanisms at the Hassayampa River Preserve, Arizona, USA

Taly Dawn Drezner, Patricia L. Fall, Juliet Stromberg

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

This study focuses on the relationships between plant dispersal syndromes and plant distributions at the community scale. Species composition and cover are reported from 29 10 x 20-m vegetation plots along five topographic cross-sections in the riparian zone of the Hassayampa River Preserve, Arizona. We find that spatial patterns of dispersal guilds vary within the flood plain of this semiarid region river. Our main results are: (1) wind-dispersed species are fairly evenly distributed at all elevations and distances from the river, whereas cover of animal-dispersed species increases with elevation above, and at greater distances from, the river; (2) wind-dispersed species are proportionally more abundant in the pioneer Populus-Salix community, whereas plants in the late-seral Prosopis community are predominantly animal-dispersed; (3) most of the species classified as obligate-wetland and facultative-wetland are wind-dispersed, whereas facultative-upland and obligate-upland species are mostly animal-dispersed; and (4) there are significantly fewer wind-dispersed species in areas of high total vegetation cover. These results may reflect successional patterns resulting from periodic flooding. Low areas close to the river flood more frequently and with greater intensity than areas farther from the river. Many pioneer species that establish in disturbed areas are wind-dispersed. Over successional time, pioneer species cede to more drought tolerant species that are predominantly animal-dispersed.

Original languageEnglish (US)
Pages (from-to)205-217
Number of pages13
JournalGlobal Ecology and Biogeography
Volume10
Issue number2
DOIs
StatePublished - Mar 2001

Fingerprint

preserves
rivers
river
pioneer species
animals
highlands
wetlands
animal
Prosopis
wetland
riparian areas
Salix
Populus
vegetation cover
riparian zone
floodplains
preserve
distribution
guild
semiarid region

Keywords

  • Anemochory
  • Animal dispersal
  • Populus Prosopis
  • Riparian
  • Salix
  • Sonoran desert
  • Succession
  • Wind Dispersal
  • Zoochory

ASJC Scopus subject areas

  • Ecology
  • Global and Planetary Change

Cite this

Plant distribution and dispersal mechanisms at the Hassayampa River Preserve, Arizona, USA. / Drezner, Taly Dawn; Fall, Patricia L.; Stromberg, Juliet.

In: Global Ecology and Biogeography, Vol. 10, No. 2, 03.2001, p. 205-217.

Research output: Contribution to journalArticle

Drezner, Taly Dawn ; Fall, Patricia L. ; Stromberg, Juliet. / Plant distribution and dispersal mechanisms at the Hassayampa River Preserve, Arizona, USA. In: Global Ecology and Biogeography. 2001 ; Vol. 10, No. 2. pp. 205-217.
@article{7c8f34ee18b74fdfa5746e030f0621f0,
title = "Plant distribution and dispersal mechanisms at the Hassayampa River Preserve, Arizona, USA",
abstract = "This study focuses on the relationships between plant dispersal syndromes and plant distributions at the community scale. Species composition and cover are reported from 29 10 x 20-m vegetation plots along five topographic cross-sections in the riparian zone of the Hassayampa River Preserve, Arizona. We find that spatial patterns of dispersal guilds vary within the flood plain of this semiarid region river. Our main results are: (1) wind-dispersed species are fairly evenly distributed at all elevations and distances from the river, whereas cover of animal-dispersed species increases with elevation above, and at greater distances from, the river; (2) wind-dispersed species are proportionally more abundant in the pioneer Populus-Salix community, whereas plants in the late-seral Prosopis community are predominantly animal-dispersed; (3) most of the species classified as obligate-wetland and facultative-wetland are wind-dispersed, whereas facultative-upland and obligate-upland species are mostly animal-dispersed; and (4) there are significantly fewer wind-dispersed species in areas of high total vegetation cover. These results may reflect successional patterns resulting from periodic flooding. Low areas close to the river flood more frequently and with greater intensity than areas farther from the river. Many pioneer species that establish in disturbed areas are wind-dispersed. Over successional time, pioneer species cede to more drought tolerant species that are predominantly animal-dispersed.",
keywords = "Anemochory, Animal dispersal, Populus Prosopis, Riparian, Salix, Sonoran desert, Succession, Wind Dispersal, Zoochory",
author = "Drezner, {Taly Dawn} and Fall, {Patricia L.} and Juliet Stromberg",
year = "2001",
month = "3",
doi = "10.1046/j.1466-822x.2001.00216.x",
language = "English (US)",
volume = "10",
pages = "205--217",
journal = "Global Ecology and Biogeography",
issn = "1466-822X",
publisher = "Wiley-Blackwell",
number = "2",

}

TY - JOUR

T1 - Plant distribution and dispersal mechanisms at the Hassayampa River Preserve, Arizona, USA

AU - Drezner, Taly Dawn

AU - Fall, Patricia L.

AU - Stromberg, Juliet

PY - 2001/3

Y1 - 2001/3

N2 - This study focuses on the relationships between plant dispersal syndromes and plant distributions at the community scale. Species composition and cover are reported from 29 10 x 20-m vegetation plots along five topographic cross-sections in the riparian zone of the Hassayampa River Preserve, Arizona. We find that spatial patterns of dispersal guilds vary within the flood plain of this semiarid region river. Our main results are: (1) wind-dispersed species are fairly evenly distributed at all elevations and distances from the river, whereas cover of animal-dispersed species increases with elevation above, and at greater distances from, the river; (2) wind-dispersed species are proportionally more abundant in the pioneer Populus-Salix community, whereas plants in the late-seral Prosopis community are predominantly animal-dispersed; (3) most of the species classified as obligate-wetland and facultative-wetland are wind-dispersed, whereas facultative-upland and obligate-upland species are mostly animal-dispersed; and (4) there are significantly fewer wind-dispersed species in areas of high total vegetation cover. These results may reflect successional patterns resulting from periodic flooding. Low areas close to the river flood more frequently and with greater intensity than areas farther from the river. Many pioneer species that establish in disturbed areas are wind-dispersed. Over successional time, pioneer species cede to more drought tolerant species that are predominantly animal-dispersed.

AB - This study focuses on the relationships between plant dispersal syndromes and plant distributions at the community scale. Species composition and cover are reported from 29 10 x 20-m vegetation plots along five topographic cross-sections in the riparian zone of the Hassayampa River Preserve, Arizona. We find that spatial patterns of dispersal guilds vary within the flood plain of this semiarid region river. Our main results are: (1) wind-dispersed species are fairly evenly distributed at all elevations and distances from the river, whereas cover of animal-dispersed species increases with elevation above, and at greater distances from, the river; (2) wind-dispersed species are proportionally more abundant in the pioneer Populus-Salix community, whereas plants in the late-seral Prosopis community are predominantly animal-dispersed; (3) most of the species classified as obligate-wetland and facultative-wetland are wind-dispersed, whereas facultative-upland and obligate-upland species are mostly animal-dispersed; and (4) there are significantly fewer wind-dispersed species in areas of high total vegetation cover. These results may reflect successional patterns resulting from periodic flooding. Low areas close to the river flood more frequently and with greater intensity than areas farther from the river. Many pioneer species that establish in disturbed areas are wind-dispersed. Over successional time, pioneer species cede to more drought tolerant species that are predominantly animal-dispersed.

KW - Anemochory

KW - Animal dispersal

KW - Populus Prosopis

KW - Riparian

KW - Salix

KW - Sonoran desert

KW - Succession

KW - Wind Dispersal

KW - Zoochory

UR - http://www.scopus.com/inward/record.url?scp=0035013263&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035013263&partnerID=8YFLogxK

U2 - 10.1046/j.1466-822x.2001.00216.x

DO - 10.1046/j.1466-822x.2001.00216.x

M3 - Article

VL - 10

SP - 205

EP - 217

JO - Global Ecology and Biogeography

JF - Global Ecology and Biogeography

SN - 1466-822X

IS - 2

ER -