Biocontrol exerts natural selection against fecundity traits in Cytisus scoparius (L.)

Bode, Robert F.; Black, Corrin

doi:10.1007/s10682-021-10151-8

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…Biocontrols are one option for limiting the fitness of this species in non‐native ecosystems. Seed size is positively correlated with competitive ability and Bode & Black (2022) found that seed‐eating beetles favoured larger seeds, which imposed negative selection on seed size and reduced the fitness of C. scoparius . Flower size can lead to pollinator limitation in some areas, such as Washington State, USA, where natural selection against pollination limits C. scoparius expansion (Bode & Tong 2018).…”

Section: Ecology Of An Invasionmentioning

confidence: 99%

Global expansion of Cytisus scoparius (L.) Link over 200 years

Hacker,

Coops

2024

Plant Biol J

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Cytisus scoparius (L.) Link, commonly referred to as Scotch broom, is a Mediterranean shrub capable of thriving in a variety of ecosystems that has invaded every habitable continent on Earth. Our research presents a timeline and estimated rate of expansion from 1816 to 2016. We then model its expected range over the next 70 years, highlighting the need for investigation into its expansion mechanisms and the establishment of monitoring programs.

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Section: Ecology Of An Invasionmentioning

confidence: 99%

Global expansion of Cytisus scoparius (L.) Link over 200 years

Hacker,

Coops

2024

Plant Biol J

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Weather patterns determine success rates of two biocontrol agents on Cytisus scoparius in the USA

Bode,

Cervantez

2024

Entomologia Exp Applicata

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To be effective, a biocontrol agent must survive and persist in the same habitat as the target species and reduce target population growth. When multiple biocontrol agents are used against a single invasive species, they may each perform better under a subset of the habitat in which the target lives. This complementarity allows for a more consistent level of control and a higher resilience to environmental variability. Two species that feed on the same plant tissues would compete, but niche partitioning in the native range may be replicated when both species are introduced to the invasive range. When biocontrol agents are released, they may self‐sort to perform best in their respective niches. We hypothesized that two biocontrol agents—Scotch broom seed beetle, Bruchidius villosus (Fabricius) (Coleoptera: Chrysomelidae) and Scotch broom seed weevil, Exapion fuscirostre (Fabricius) (Coleoptera: Brentidae)—that both feed on seeds of the invasive legume Scotch broom, Cytisus scoparius L. Link (Fabaceae), would be impacted differently by different weather conditions and plant traits, and would show different success rates at field sites with different conditions. We used a 5‐year study to reveal that the two biocontrol agents are not uniformly distributed in the field and that weather and plant factors influence their success. We confirmed that weather conditions of the previous year influenced biocontrol agent attack rate and found that weather patterns at a field site may predict the impact of each biocontrol agent.

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