Plant Population Ecology and Biological Control: Acacia nilotica as a Case Study

Kriticos, Darren J.; Brown, Joel R.; Radford, Ian J.; Nicholas, Michael

doi:10.1006/bcon.1999.0746

Cited by 62 publications

(48 citation statements)

References 25 publications

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“…One approach to limit invasion has been to base the development of integrated control strategies on an explicit understanding of the ecology of invading species in their novel ranges, a tactic that is becoming more widespread (Kriticos et al 1999;Parker 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Quantitative and comparative ecological observations of exotic invaders in both their native and novel ranges provide the perfect context for understanding differences in plant and population performance and guiding wise choices for control. This activity has been called for many times in the literature (Crawley 1989;Sukopp and Starfinger 1995;Kriticos et al 1999) but infrequently undertaken as yet (but see McClure 1986;Grigulis et al 2001).…”

Section: Introductionmentioning

confidence: 99%

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Comparative Population Dynamics of an Invading Species in its Native and Novel Ranges

Hyatt

Araki

2006

Biol Invasions

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Although the ecology of many exotic invaders has been intensively examined in the novel range, few studies have comparatively explored how population dynamics differ in native and novel parts of an invading plants' range. The population dynamics of mile-a-minute weed, Polygonum perfoliatum L., was explored in both the native (Japan) and novel (northeastern USA) portions of its range and evaluated using periodic matrix models. Projected per capita population growth rate (k) varied within and between native and novel range populations. Surprisingly, five of the six populations in the novel range were projected to fail to replace themselves (k<1) while only two of the four native range populations were projected to decline, although these projections had wider confidence intervals than in the novel habitat. While changes in germination, survivorship, fecundity and seed banking would have equivalent effects on population growth in the invasive habitat, small increases in plant survivorship would greatly increase k in native populations. The differences between native and novel population growth rates were driven by lower adult survival in the native range caused by annual flooding and higher fecundity. Simulation analyses indicated that a 50% reduction in plant survival would be required to control growing populations in the novel range. Further comparative studies of other invading species in both their native and novel ranges are needed to examine whether the high per capita population growth and strong regulatory effects of adult survival in the native habitat are generally predictive of invasive behavior in novel habitats.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative Population Dynamics of an Invading Species in its Native and Novel Ranges

Hyatt

Araki

2006

Biol Invasions

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“…They are generated from expectations from ecological theory (Hokkanen & Pimentel 1984, 1989Myers 2000), from reviews of past biological control attempts (Crawley 1989b(Crawley , 1990, based on experimental data (Kriticos et al 1999) or based on prior experience and conjecture (McFadyen 2003;Sheppard 2003). Some have proven to be very useful, particularly those that apply to specific weed functional groups or guilds of natural enemy (Briese 2004).…”

Section: How Has Agent Selection Been Done Until Now?mentioning

confidence: 99%

A scientific approach to agent selection

Klinken

Raghu

2006

Australian Journal of Entomology

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The prioritisation of potential agents on the basis of likely efficacy is an important step in biological control because it can increase the probability of a successful biocontrol program, and reduce risks and costs. In this introductory paper we define success in biological control, review how agent selection has been approached historically, and outline the approach to agent selection that underpins the structure of this special issue on agent selection. Developing criteria by which to judge the success of a biocontrol agent (or program) provides the basis for agent selection decisions. Criteria will depend on the weed, on the ecological and management context in which that weed occurs, and on the negative impacts that biocontrol is seeking to redress. Predicting which potential agents are most likely to be successful poses enormous scientific challenges. 'Rules of thumb', 'scoring systems' and various conceptual and quantitative modelling approaches have been proposed to aid agent selection. However, most attempts have met with limited success due to the diversity and complexity of the systems in question. This special issue presents a series of papers that deconstruct the question of agent choice with the aim of progressively improving the success rate of biological control. Specifically they ask: (i) what potential agents are available and what should we know about them? (ii) what type, timing and degree of damage is required to achieve success? and (iii) which potential agent will reach the necessary density, at the right time, to exert the required damage in the target environment?

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“…Modern approaches in CWBC pay greater attention to ecology (plant demography and plant-plant interactions) and evolution in the interaction between agents and their targets (e.g. McEvoy et al 1991;Blossey & Notzold 1995;Kriticos et al 1999;McEvoy & Coombs 1999; van Klinken & Edwards 2002). Developments in theoretical and empirical ecology (e.g.…”

Section: Refining the Ecological Basis For Agent Selection In Weed Bimentioning

confidence: 99%

Refining the ecological basis for agent selection in weed biological control

Raghu¹,

Klinken

2006

Australian Journal of Entomology

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Plant Population Ecology and Biological Control: Acacia nilotica as a Case Study

Cited by 62 publications

References 25 publications

Comparative Population Dynamics of an Invading Species in its Native and Novel Ranges

Comparative Population Dynamics of an Invading Species in its Native and Novel Ranges

A scientific approach to agent selection

Refining the ecological basis for agent selection in weed biological control

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