Resource abundance and insect herbivore diversity on woody fabaceous desert plants

E. S. De Alckmin Marques, P. W. Price, Neil S Cobb

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

This study addresses four hypotheses that may account for differences in the number of insect herbivore species among plant species. These hypotheses are based on the assumption that insect diversity is a function of the number, quantity, and distribution of plant resources used by herbivores. The study investigated predictions that herbivore species richness will increase as a function of increasing the following: (1) host plant distribution over the landscape (host plant geographical distribution hypothesis), (2) host plant density within a habitat (resource concentration hypothesis), (3) size of individual plants (plant size hypothesis), or (4) abundance of resources (resource abundance hypothesis). We tested predictions from these hypotheses by examining the species richness of insect herbivores on five sympatric species of fabaceous plants that varied in their local dispersion of individual plants and plant architecture. Among these five species, plant geographical distribution varied threefold, density varied 38-fold, plant size and food resources available to insect herbivores varied ≃100-fold. Plant geographical distribution, plant size, and the resource concentration hypotheses were not corroborated in this study. Resource abundance, measured as plant dry weight, accounted for the differences in number and abundance of insect species between host plant species. Leaf biomass accounted for 44.15% of the variation in number of insect herbivore species and 51.76% of the variation in abundance of insect herbivores using leaves as resources. Flower biomass accounted for 32.86% of the variation in the number of insect herbivore species using flowers. Therefore, plants that offered a greater quantity of resources, especially leaves and flowers, had greater species richness and abundance in insect herbivores.

Original languageEnglish (US)
Pages (from-to)696-703
Number of pages8
JournalEnvironmental Entomology
Volume29
Issue number4
StatePublished - 2000

Fingerprint

xerophytes
woody plants
herbivore
herbivores
desert
insect
insects
resource
host plant
geographical distribution
flower
host plants
species richness
flowers
species diversity
plant architecture
fold
biomass
prediction
leaves

Keywords

  • Herbivory
  • Insect diversity
  • Plant size hypothesis
  • Resource abundance hypothesis
  • Resource concentration hypothesis

ASJC Scopus subject areas

  • Insect Science
  • Environmental Science(all)

Cite this

Resource abundance and insect herbivore diversity on woody fabaceous desert plants. / De Alckmin Marques, E. S.; Price, P. W.; Cobb, Neil S.

In: Environmental Entomology, Vol. 29, No. 4, 2000, p. 696-703.

Research output: Contribution to journalArticle

De Alckmin Marques, E. S. ; Price, P. W. ; Cobb, Neil S. / Resource abundance and insect herbivore diversity on woody fabaceous desert plants. In: Environmental Entomology. 2000 ; Vol. 29, No. 4. pp. 696-703.
@article{a3d299f8b12049a58201fb2ae77b5b0d,
title = "Resource abundance and insect herbivore diversity on woody fabaceous desert plants",
abstract = "This study addresses four hypotheses that may account for differences in the number of insect herbivore species among plant species. These hypotheses are based on the assumption that insect diversity is a function of the number, quantity, and distribution of plant resources used by herbivores. The study investigated predictions that herbivore species richness will increase as a function of increasing the following: (1) host plant distribution over the landscape (host plant geographical distribution hypothesis), (2) host plant density within a habitat (resource concentration hypothesis), (3) size of individual plants (plant size hypothesis), or (4) abundance of resources (resource abundance hypothesis). We tested predictions from these hypotheses by examining the species richness of insect herbivores on five sympatric species of fabaceous plants that varied in their local dispersion of individual plants and plant architecture. Among these five species, plant geographical distribution varied threefold, density varied 38-fold, plant size and food resources available to insect herbivores varied ≃100-fold. Plant geographical distribution, plant size, and the resource concentration hypotheses were not corroborated in this study. Resource abundance, measured as plant dry weight, accounted for the differences in number and abundance of insect species between host plant species. Leaf biomass accounted for 44.15{\%} of the variation in number of insect herbivore species and 51.76{\%} of the variation in abundance of insect herbivores using leaves as resources. Flower biomass accounted for 32.86{\%} of the variation in the number of insect herbivore species using flowers. Therefore, plants that offered a greater quantity of resources, especially leaves and flowers, had greater species richness and abundance in insect herbivores.",
keywords = "Herbivory, Insect diversity, Plant size hypothesis, Resource abundance hypothesis, Resource concentration hypothesis",
author = "{De Alckmin Marques}, {E. S.} and Price, {P. W.} and Cobb, {Neil S}",
year = "2000",
language = "English (US)",
volume = "29",
pages = "696--703",
journal = "Environmental Entomology",
issn = "0046-225X",
publisher = "Entomological Society of America",
number = "4",

}

TY - JOUR

T1 - Resource abundance and insect herbivore diversity on woody fabaceous desert plants

AU - De Alckmin Marques, E. S.

AU - Price, P. W.

AU - Cobb, Neil S

PY - 2000

Y1 - 2000

N2 - This study addresses four hypotheses that may account for differences in the number of insect herbivore species among plant species. These hypotheses are based on the assumption that insect diversity is a function of the number, quantity, and distribution of plant resources used by herbivores. The study investigated predictions that herbivore species richness will increase as a function of increasing the following: (1) host plant distribution over the landscape (host plant geographical distribution hypothesis), (2) host plant density within a habitat (resource concentration hypothesis), (3) size of individual plants (plant size hypothesis), or (4) abundance of resources (resource abundance hypothesis). We tested predictions from these hypotheses by examining the species richness of insect herbivores on five sympatric species of fabaceous plants that varied in their local dispersion of individual plants and plant architecture. Among these five species, plant geographical distribution varied threefold, density varied 38-fold, plant size and food resources available to insect herbivores varied ≃100-fold. Plant geographical distribution, plant size, and the resource concentration hypotheses were not corroborated in this study. Resource abundance, measured as plant dry weight, accounted for the differences in number and abundance of insect species between host plant species. Leaf biomass accounted for 44.15% of the variation in number of insect herbivore species and 51.76% of the variation in abundance of insect herbivores using leaves as resources. Flower biomass accounted for 32.86% of the variation in the number of insect herbivore species using flowers. Therefore, plants that offered a greater quantity of resources, especially leaves and flowers, had greater species richness and abundance in insect herbivores.

AB - This study addresses four hypotheses that may account for differences in the number of insect herbivore species among plant species. These hypotheses are based on the assumption that insect diversity is a function of the number, quantity, and distribution of plant resources used by herbivores. The study investigated predictions that herbivore species richness will increase as a function of increasing the following: (1) host plant distribution over the landscape (host plant geographical distribution hypothesis), (2) host plant density within a habitat (resource concentration hypothesis), (3) size of individual plants (plant size hypothesis), or (4) abundance of resources (resource abundance hypothesis). We tested predictions from these hypotheses by examining the species richness of insect herbivores on five sympatric species of fabaceous plants that varied in their local dispersion of individual plants and plant architecture. Among these five species, plant geographical distribution varied threefold, density varied 38-fold, plant size and food resources available to insect herbivores varied ≃100-fold. Plant geographical distribution, plant size, and the resource concentration hypotheses were not corroborated in this study. Resource abundance, measured as plant dry weight, accounted for the differences in number and abundance of insect species between host plant species. Leaf biomass accounted for 44.15% of the variation in number of insect herbivore species and 51.76% of the variation in abundance of insect herbivores using leaves as resources. Flower biomass accounted for 32.86% of the variation in the number of insect herbivore species using flowers. Therefore, plants that offered a greater quantity of resources, especially leaves and flowers, had greater species richness and abundance in insect herbivores.

KW - Herbivory

KW - Insect diversity

KW - Plant size hypothesis

KW - Resource abundance hypothesis

KW - Resource concentration hypothesis

UR - http://www.scopus.com/inward/record.url?scp=0033850585&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033850585&partnerID=8YFLogxK

M3 - Article

VL - 29

SP - 696

EP - 703

JO - Environmental Entomology

JF - Environmental Entomology

SN - 0046-225X

IS - 4

ER -