Population biology of entomopathogenic nematodes

Concepts, issues, and models

Robin J. Stuart, Mary Ellen Barbercheck, Parwinder S. Grewal, Robin A.J. Taylor, Casey W. Hoy

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

Entomopathogenic nematodes (Steinernematidae and Heterorhabditidae) are lethal obligatory parasites of insects and are found in soils throughout the world. The recognition that these nematodes are major natural enemies of soil insect pests has stimulated research into various aspects of their biology and enabled their use in augmentation and conservation biological control programs. Unfortunately, relatively little is known about the structure and dynamics of their populations or the factors that influence them. This knowledge is required if these nematodes are to fulfill their considerable potential as manageable components of cultivated ecosystems. The unusual life history of entomopathogenic nematodes imposes important constraints on their population biology. The host cadaver serves as the focus for many of the fundamental interactions associated with their population dynamics because feeding, development, mating, and reproduction are confined to the cadaver environment. Only non-feeding infective juveniles (dauer larvae) leave the host, but their production, dispersal, persistence, and infection potential provide critical links for the survival and proliferation of populations. Infective juveniles also carry symbiotic bacteria (Enterobacteriaceae) that are released within the host, are largely responsible for host death, and form an integral part of their life history. In this paper, we discuss the structure of entomopathogenic nematode populations, the various biotic and abiotic factors that influence them, and procedures for sampling and modeling their spatial and temporal dynamics. Environmental degradation and the economic and social realities of modern agriculture assure that entomopathogenic nematodes will remain prime subjects for continuing basic and applied ecological research.

Original languageEnglish (US)
Pages (from-to)80-102
Number of pages23
JournalBiological Control
Volume38
Issue number1
DOIs
StatePublished - Jul 1 2006

Fingerprint

entomopathogenic nematodes
nematode larvae
Biological Sciences
population dynamics
soil insects
life history
Nematoda
Heterorhabditidae
Steinernematidae
environmental degradation
Enterobacteriaceae
natural enemies
insect pests
biological control
death
agriculture
parasites
economics
insects
environmental factors

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Insect Science

Cite this

Stuart, Robin J. ; Barbercheck, Mary Ellen ; Grewal, Parwinder S. ; Taylor, Robin A.J. ; Hoy, Casey W. / Population biology of entomopathogenic nematodes : Concepts, issues, and models. In: Biological Control. 2006 ; Vol. 38, No. 1. pp. 80-102.
@article{3e282825b99a441bbce347ec9e4e8b86,
title = "Population biology of entomopathogenic nematodes: Concepts, issues, and models",
abstract = "Entomopathogenic nematodes (Steinernematidae and Heterorhabditidae) are lethal obligatory parasites of insects and are found in soils throughout the world. The recognition that these nematodes are major natural enemies of soil insect pests has stimulated research into various aspects of their biology and enabled their use in augmentation and conservation biological control programs. Unfortunately, relatively little is known about the structure and dynamics of their populations or the factors that influence them. This knowledge is required if these nematodes are to fulfill their considerable potential as manageable components of cultivated ecosystems. The unusual life history of entomopathogenic nematodes imposes important constraints on their population biology. The host cadaver serves as the focus for many of the fundamental interactions associated with their population dynamics because feeding, development, mating, and reproduction are confined to the cadaver environment. Only non-feeding infective juveniles (dauer larvae) leave the host, but their production, dispersal, persistence, and infection potential provide critical links for the survival and proliferation of populations. Infective juveniles also carry symbiotic bacteria (Enterobacteriaceae) that are released within the host, are largely responsible for host death, and form an integral part of their life history. In this paper, we discuss the structure of entomopathogenic nematode populations, the various biotic and abiotic factors that influence them, and procedures for sampling and modeling their spatial and temporal dynamics. Environmental degradation and the economic and social realities of modern agriculture assure that entomopathogenic nematodes will remain prime subjects for continuing basic and applied ecological research.",
author = "Stuart, {Robin J.} and Barbercheck, {Mary Ellen} and Grewal, {Parwinder S.} and Taylor, {Robin A.J.} and Hoy, {Casey W.}",
year = "2006",
month = "7",
day = "1",
doi = "10.1016/j.biocontrol.2005.09.019",
language = "English (US)",
volume = "38",
pages = "80--102",
journal = "Biological Control",
issn = "1049-9644",
publisher = "Academic Press Inc.",
number = "1",

}

Population biology of entomopathogenic nematodes : Concepts, issues, and models. / Stuart, Robin J.; Barbercheck, Mary Ellen; Grewal, Parwinder S.; Taylor, Robin A.J.; Hoy, Casey W.

In: Biological Control, Vol. 38, No. 1, 01.07.2006, p. 80-102.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Population biology of entomopathogenic nematodes

T2 - Concepts, issues, and models

AU - Stuart, Robin J.

AU - Barbercheck, Mary Ellen

AU - Grewal, Parwinder S.

AU - Taylor, Robin A.J.

AU - Hoy, Casey W.

PY - 2006/7/1

Y1 - 2006/7/1

N2 - Entomopathogenic nematodes (Steinernematidae and Heterorhabditidae) are lethal obligatory parasites of insects and are found in soils throughout the world. The recognition that these nematodes are major natural enemies of soil insect pests has stimulated research into various aspects of their biology and enabled their use in augmentation and conservation biological control programs. Unfortunately, relatively little is known about the structure and dynamics of their populations or the factors that influence them. This knowledge is required if these nematodes are to fulfill their considerable potential as manageable components of cultivated ecosystems. The unusual life history of entomopathogenic nematodes imposes important constraints on their population biology. The host cadaver serves as the focus for many of the fundamental interactions associated with their population dynamics because feeding, development, mating, and reproduction are confined to the cadaver environment. Only non-feeding infective juveniles (dauer larvae) leave the host, but their production, dispersal, persistence, and infection potential provide critical links for the survival and proliferation of populations. Infective juveniles also carry symbiotic bacteria (Enterobacteriaceae) that are released within the host, are largely responsible for host death, and form an integral part of their life history. In this paper, we discuss the structure of entomopathogenic nematode populations, the various biotic and abiotic factors that influence them, and procedures for sampling and modeling their spatial and temporal dynamics. Environmental degradation and the economic and social realities of modern agriculture assure that entomopathogenic nematodes will remain prime subjects for continuing basic and applied ecological research.

AB - Entomopathogenic nematodes (Steinernematidae and Heterorhabditidae) are lethal obligatory parasites of insects and are found in soils throughout the world. The recognition that these nematodes are major natural enemies of soil insect pests has stimulated research into various aspects of their biology and enabled their use in augmentation and conservation biological control programs. Unfortunately, relatively little is known about the structure and dynamics of their populations or the factors that influence them. This knowledge is required if these nematodes are to fulfill their considerable potential as manageable components of cultivated ecosystems. The unusual life history of entomopathogenic nematodes imposes important constraints on their population biology. The host cadaver serves as the focus for many of the fundamental interactions associated with their population dynamics because feeding, development, mating, and reproduction are confined to the cadaver environment. Only non-feeding infective juveniles (dauer larvae) leave the host, but their production, dispersal, persistence, and infection potential provide critical links for the survival and proliferation of populations. Infective juveniles also carry symbiotic bacteria (Enterobacteriaceae) that are released within the host, are largely responsible for host death, and form an integral part of their life history. In this paper, we discuss the structure of entomopathogenic nematode populations, the various biotic and abiotic factors that influence them, and procedures for sampling and modeling their spatial and temporal dynamics. Environmental degradation and the economic and social realities of modern agriculture assure that entomopathogenic nematodes will remain prime subjects for continuing basic and applied ecological research.

UR - http://www.scopus.com/inward/record.url?scp=33744540662&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33744540662&partnerID=8YFLogxK

U2 - 10.1016/j.biocontrol.2005.09.019

DO - 10.1016/j.biocontrol.2005.09.019

M3 - Article

VL - 38

SP - 80

EP - 102

JO - Biological Control

JF - Biological Control

SN - 1049-9644

IS - 1

ER -