Are invasive species drivers of native species decline or passengers of habitat modification?

A case study of the impact of the common myna (Acridotheres tristis) on Australian bird species

Kate Grarock, Christopher Tidemann, Jeffrey Wood, David B. Lindenmayer

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Habitat modification and invasive species are significant drivers of biodiversity decline. However, distinguishing between the impacts of these two drivers on native species can be difficult. For example, habitat modification may reduce native species abundance, while an invasive species may take advantage of the new environment. This scenario has been described as the driver-passenger model, with 'passengers' taking advantage of habitat modification and 'drivers' causing native species decline. Therefore, research must incorporate both habitat modification and invasive species impact to successfully investigate native species decline. In this paper, we used the common myna (Acridotheres tristis) as a case study to investigate the driver-passenger model. We investigated changes in bird abundance, over 2 years, in relation to different habitat types and common myna abundance. We hypothesized that the common myna is both a passenger of habitat change and a driver of some bird species decline. Our results indicated that the abundance of many native species is greater in high tree density nature reserves, while the common myna was uncommon in these areas. Common myna abundance was almost three times higher in urban areas than nature reserves and declined rapidly as tree density in nature reserves increased. Our findings indicated that the common myna is primarily a passenger of habitat change. However, we also observed negative associations between common myna abundance and some bird species. We stress the importance of simultaneously investigating both invasive species impact and habitat modification. We suggest habitat restoration could be a useful tool for both native species recovery and invasive species control. Understanding the drivers of native species decline will help inform impact mitigation and direct further research.
Original languageEnglish
Pages (from-to)106-114
Number of pages9
JournalAustral Ecology
Volume39
Issue number1
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

Acridotheres
invasive species
native species
indigenous species
case studies
birds
habitat
habitats
nature reserve
conservation areas
habitat restoration
bird species
habitat type
habitat conservation
urban areas
mitigation
urban area
biodiversity
bird

Cite this

@article{6408d773a3e842ffa2c9002613494d23,
title = "Are invasive species drivers of native species decline or passengers of habitat modification?: A case study of the impact of the common myna (Acridotheres tristis) on Australian bird species",
abstract = "Habitat modification and invasive species are significant drivers of biodiversity decline. However, distinguishing between the impacts of these two drivers on native species can be difficult. For example, habitat modification may reduce native species abundance, while an invasive species may take advantage of the new environment. This scenario has been described as the driver-passenger model, with 'passengers' taking advantage of habitat modification and 'drivers' causing native species decline. Therefore, research must incorporate both habitat modification and invasive species impact to successfully investigate native species decline. In this paper, we used the common myna (Acridotheres tristis) as a case study to investigate the driver-passenger model. We investigated changes in bird abundance, over 2 years, in relation to different habitat types and common myna abundance. We hypothesized that the common myna is both a passenger of habitat change and a driver of some bird species decline. Our results indicated that the abundance of many native species is greater in high tree density nature reserves, while the common myna was uncommon in these areas. Common myna abundance was almost three times higher in urban areas than nature reserves and declined rapidly as tree density in nature reserves increased. Our findings indicated that the common myna is primarily a passenger of habitat change. However, we also observed negative associations between common myna abundance and some bird species. We stress the importance of simultaneously investigating both invasive species impact and habitat modification. We suggest habitat restoration could be a useful tool for both native species recovery and invasive species control. Understanding the drivers of native species decline will help inform impact mitigation and direct further research.",
keywords = "Driver-passenger model, Indian myna, Introduced species, Pest management, Sturnus tristis",
author = "Kate Grarock and Christopher Tidemann and Jeffrey Wood and Lindenmayer, {David B.}",
year = "2014",
doi = "10.1111/aec.12049",
language = "English",
volume = "39",
pages = "106--114",
journal = "Austral Ecology",
issn = "1442-9985",
publisher = "Wiley-Blackwell",
number = "1",

}

Are invasive species drivers of native species decline or passengers of habitat modification? A case study of the impact of the common myna (Acridotheres tristis) on Australian bird species. / Grarock, Kate; Tidemann, Christopher; Wood, Jeffrey; Lindenmayer, David B.

In: Austral Ecology, Vol. 39, No. 1, 2014, p. 106-114.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Are invasive species drivers of native species decline or passengers of habitat modification?

T2 - A case study of the impact of the common myna (Acridotheres tristis) on Australian bird species

AU - Grarock, Kate

AU - Tidemann, Christopher

AU - Wood, Jeffrey

AU - Lindenmayer, David B.

PY - 2014

Y1 - 2014

N2 - Habitat modification and invasive species are significant drivers of biodiversity decline. However, distinguishing between the impacts of these two drivers on native species can be difficult. For example, habitat modification may reduce native species abundance, while an invasive species may take advantage of the new environment. This scenario has been described as the driver-passenger model, with 'passengers' taking advantage of habitat modification and 'drivers' causing native species decline. Therefore, research must incorporate both habitat modification and invasive species impact to successfully investigate native species decline. In this paper, we used the common myna (Acridotheres tristis) as a case study to investigate the driver-passenger model. We investigated changes in bird abundance, over 2 years, in relation to different habitat types and common myna abundance. We hypothesized that the common myna is both a passenger of habitat change and a driver of some bird species decline. Our results indicated that the abundance of many native species is greater in high tree density nature reserves, while the common myna was uncommon in these areas. Common myna abundance was almost three times higher in urban areas than nature reserves and declined rapidly as tree density in nature reserves increased. Our findings indicated that the common myna is primarily a passenger of habitat change. However, we also observed negative associations between common myna abundance and some bird species. We stress the importance of simultaneously investigating both invasive species impact and habitat modification. We suggest habitat restoration could be a useful tool for both native species recovery and invasive species control. Understanding the drivers of native species decline will help inform impact mitigation and direct further research.

AB - Habitat modification and invasive species are significant drivers of biodiversity decline. However, distinguishing between the impacts of these two drivers on native species can be difficult. For example, habitat modification may reduce native species abundance, while an invasive species may take advantage of the new environment. This scenario has been described as the driver-passenger model, with 'passengers' taking advantage of habitat modification and 'drivers' causing native species decline. Therefore, research must incorporate both habitat modification and invasive species impact to successfully investigate native species decline. In this paper, we used the common myna (Acridotheres tristis) as a case study to investigate the driver-passenger model. We investigated changes in bird abundance, over 2 years, in relation to different habitat types and common myna abundance. We hypothesized that the common myna is both a passenger of habitat change and a driver of some bird species decline. Our results indicated that the abundance of many native species is greater in high tree density nature reserves, while the common myna was uncommon in these areas. Common myna abundance was almost three times higher in urban areas than nature reserves and declined rapidly as tree density in nature reserves increased. Our findings indicated that the common myna is primarily a passenger of habitat change. However, we also observed negative associations between common myna abundance and some bird species. We stress the importance of simultaneously investigating both invasive species impact and habitat modification. We suggest habitat restoration could be a useful tool for both native species recovery and invasive species control. Understanding the drivers of native species decline will help inform impact mitigation and direct further research.

KW - Driver-passenger model

KW - Indian myna

KW - Introduced species

KW - Pest management

KW - Sturnus tristis

UR - http://www.scopus.com/inward/record.url?scp=84885470041&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/invasive-species-drivers-native-species-decline-passengers-habitat-modification-case-study-impact-co

U2 - 10.1111/aec.12049

DO - 10.1111/aec.12049

M3 - Article

VL - 39

SP - 106

EP - 114

JO - Austral Ecology

JF - Austral Ecology

SN - 1442-9985

IS - 1

ER -