Abstract

Motivated by recent field studies on the effects of biocontrol beetle on invasive plants (Tamarix) on riparian ecosystems, we develop a simple three-species (the native consumer, the biocontrol agent, and their predator) model to explore potential dynamical benefits and harm of introducing a non-indigenous species into varied ecosystems with different habitat structures. Our proposed model assumes that (1) habitat consists of both native plants that are main food resources of the native consumer and invasive plants which are targeted food resources of the biocontrol agents; (2) the habitat structure is stable which has a fixed ratio of invasive plants; (3) biocontrol agents can defoliate invasive plants whose defoliations provide as additional food resources for the native consumer that could potentially increase the native consumer's abundance; and (4) the predators feed on both the native consumer and the biocontrol agents. Our study shows that introducing biocontrol agents into the ecosystem can generate complicated dynamics that could be beneficial or harmful to the ecosystem depending on the environments: biocontrol agents could be beneficial by promoting its biodiversity such that all species could coexist; on the other hand, biocontrol agents could also be harmful by eliminating the native consumer or the predator. In addition, biocontrol agents could stabilize or destabilize the ecosystem depending on the habit structure and the local ecological environments. These theoretical results provide us potential decision-making tools that allow managers to better predict both safety and efficacy of candidate biological control agents are needed.

LanguageEnglish (US)
Pages361-385
Number of pages25
JournalApplied Mathematical Modelling
Volume51
DOIs
StatePublished - Nov 1 2017

Fingerprint

Biocontrol
Ecosystem
Ecosystems
Predator
Resources
Defoliation
Biological Control
Biodiversity
Field Study
Efficacy
Managers
Safety
Decision making
Decision Making

Keywords

  • Invasive species
  • Native consumer
  • Native vegetation
  • Predation
  • Saltcedar

ASJC Scopus subject areas

  • Modeling and Simulation
  • Applied Mathematics

Cite this

Dynamical effects of biocontrol on the ecosystem : Benefits or harm? / Kang, Yun; Bai, Dingyong; Tapia, Lorenzo; Bateman, Heather.

In: Applied Mathematical Modelling, Vol. 51, 01.11.2017, p. 361-385.

Research output: Contribution to journalArticle

@article{f78ecc561aab4ba5999aceb0fdf1950a,
title = "Dynamical effects of biocontrol on the ecosystem: Benefits or harm?",
abstract = "Motivated by recent field studies on the effects of biocontrol beetle on invasive plants (Tamarix) on riparian ecosystems, we develop a simple three-species (the native consumer, the biocontrol agent, and their predator) model to explore potential dynamical benefits and harm of introducing a non-indigenous species into varied ecosystems with different habitat structures. Our proposed model assumes that (1) habitat consists of both native plants that are main food resources of the native consumer and invasive plants which are targeted food resources of the biocontrol agents; (2) the habitat structure is stable which has a fixed ratio of invasive plants; (3) biocontrol agents can defoliate invasive plants whose defoliations provide as additional food resources for the native consumer that could potentially increase the native consumer's abundance; and (4) the predators feed on both the native consumer and the biocontrol agents. Our study shows that introducing biocontrol agents into the ecosystem can generate complicated dynamics that could be beneficial or harmful to the ecosystem depending on the environments: biocontrol agents could be beneficial by promoting its biodiversity such that all species could coexist; on the other hand, biocontrol agents could also be harmful by eliminating the native consumer or the predator. In addition, biocontrol agents could stabilize or destabilize the ecosystem depending on the habit structure and the local ecological environments. These theoretical results provide us potential decision-making tools that allow managers to better predict both safety and efficacy of candidate biological control agents are needed.",
keywords = "Invasive species, Native consumer, Native vegetation, Predation, Saltcedar",
author = "Yun Kang and Dingyong Bai and Lorenzo Tapia and Heather Bateman",
year = "2017",
month = "11",
day = "1",
doi = "10.1016/j.apm.2017.07.006",
language = "English (US)",
volume = "51",
pages = "361--385",
journal = "Applied Mathematical Modelling",
issn = "0307-904X",
publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Dynamical effects of biocontrol on the ecosystem

T2 - Applied Mathematical Modelling

AU - Kang,Yun

AU - Bai,Dingyong

AU - Tapia,Lorenzo

AU - Bateman,Heather

PY - 2017/11/1

Y1 - 2017/11/1

N2 - Motivated by recent field studies on the effects of biocontrol beetle on invasive plants (Tamarix) on riparian ecosystems, we develop a simple three-species (the native consumer, the biocontrol agent, and their predator) model to explore potential dynamical benefits and harm of introducing a non-indigenous species into varied ecosystems with different habitat structures. Our proposed model assumes that (1) habitat consists of both native plants that are main food resources of the native consumer and invasive plants which are targeted food resources of the biocontrol agents; (2) the habitat structure is stable which has a fixed ratio of invasive plants; (3) biocontrol agents can defoliate invasive plants whose defoliations provide as additional food resources for the native consumer that could potentially increase the native consumer's abundance; and (4) the predators feed on both the native consumer and the biocontrol agents. Our study shows that introducing biocontrol agents into the ecosystem can generate complicated dynamics that could be beneficial or harmful to the ecosystem depending on the environments: biocontrol agents could be beneficial by promoting its biodiversity such that all species could coexist; on the other hand, biocontrol agents could also be harmful by eliminating the native consumer or the predator. In addition, biocontrol agents could stabilize or destabilize the ecosystem depending on the habit structure and the local ecological environments. These theoretical results provide us potential decision-making tools that allow managers to better predict both safety and efficacy of candidate biological control agents are needed.

AB - Motivated by recent field studies on the effects of biocontrol beetle on invasive plants (Tamarix) on riparian ecosystems, we develop a simple three-species (the native consumer, the biocontrol agent, and their predator) model to explore potential dynamical benefits and harm of introducing a non-indigenous species into varied ecosystems with different habitat structures. Our proposed model assumes that (1) habitat consists of both native plants that are main food resources of the native consumer and invasive plants which are targeted food resources of the biocontrol agents; (2) the habitat structure is stable which has a fixed ratio of invasive plants; (3) biocontrol agents can defoliate invasive plants whose defoliations provide as additional food resources for the native consumer that could potentially increase the native consumer's abundance; and (4) the predators feed on both the native consumer and the biocontrol agents. Our study shows that introducing biocontrol agents into the ecosystem can generate complicated dynamics that could be beneficial or harmful to the ecosystem depending on the environments: biocontrol agents could be beneficial by promoting its biodiversity such that all species could coexist; on the other hand, biocontrol agents could also be harmful by eliminating the native consumer or the predator. In addition, biocontrol agents could stabilize or destabilize the ecosystem depending on the habit structure and the local ecological environments. These theoretical results provide us potential decision-making tools that allow managers to better predict both safety and efficacy of candidate biological control agents are needed.

KW - Invasive species

KW - Native consumer

KW - Native vegetation

KW - Predation

KW - Saltcedar

UR - http://www.scopus.com/inward/record.url?scp=85028953490&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85028953490&partnerID=8YFLogxK

U2 - 10.1016/j.apm.2017.07.006

DO - 10.1016/j.apm.2017.07.006

M3 - Article

VL - 51

SP - 361

EP - 385

JO - Applied Mathematical Modelling

JF - Applied Mathematical Modelling

SN - 0307-904X

ER -