HOST PLANT ADAPTATIONS AMONG GEOGRAPHIC POPULATIONS OF THE COLORADO POTATO BEETLE

@article{Hsiao1978HOSTPA,
  title={HOST PLANT ADAPTATIONS AMONG GEOGRAPHIC POPULATIONS OF THE COLORADO POTATO BEETLE},
  author={Ting H. Hsiao},
  journal={Entomologia Experimentalis et Applicata},
  year={1978},
  volume={24}
}
  • T. Hsiao
  • Published 1 November 1978
  • Biology
  • Entomologia Experimentalis et Applicata
Intraspecific variation in host plant adaptation of an oligophagous insect is interesting because it signifies adaptive changes among populations of a given species and may play a key role in speciation. The Colorado potato beetle, Leptinotarsa decemlineata (Say), is an oligophagous feeder indigenous to the Americas, where it is widely distributed and infests some ten native and exotic solanaceous plants. The possible existence of host‐adapted populations was investigated with four… 

Variation in host usage among geographic populations of Leptinotarsa decemlineata, the Colorado potato beetle

TLDR
Vest beetles (i.e., Vermont populations) discriminated less between host plants and grew faster than all other beetle population on both host species, underscores the virulence of the pest form of the beetle and may help to explain the absence of pest incidence within the ancestral regions of L. decemlineata.

Host-plant acceptance by geographic populations of the colorado potato beetle,Leptinotarsa decemlineata

TLDR
It is proposed that variable acceptance of host plants among regional populations of L. decemlineata has evolved independently of adaptations to alkaloids at the sensory level, and that secondary compounds such as atropine influence host choice in nature.

LOCAL DIFFERENCES IN HOST USE BY TWO POPULATIONS OF THE COLORADO POTATO BEETLE

TLDR
The results suggest that no major phys- iological changes in performance were necessary in the beetle for colonization of potato, and that the two populations were most successful on the locally abundant and annually predictable host species of their respective community.

Geographic variation of host use in the leaf beetle Agelasa nigriceps suggests host range expansion

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Geographic variation of host use in the chrysomelid leaf beetle, Agelasa nigriceps Motschulsky, is reported, and it is suggested that this beetle is expanding its host range.

Host-associated differences in fitness within and between populations of a seed beetle (Bruchidae): effects of plant variability

TLDR
The data suggest seed variability among plants does not prevent specialization to host species in this system, and how the patterns of host use in this study relate to the hypothesis of sympatric host race formation is discussed.

The genetic architecture of a niche: variation and covariation in host use traits in the Colorado potato beetle

The genetic basis of host plant use by phytophagous insects can provide insight into the evolution of ecological niches, especially phenomena such as specialization and phylogenetic conservatism. We

Between-site variation in suitability of Salix cordata as a host for Altica subplicata (Coleoptera: Chrysomelidae)

TLDR
This study examined population differentiation in host-herbivore dynamics between a willow flea beetle, Altica subplicata (Cole­ optera: Chrysomelidae: Alticinae) and sand-dune willow, Salix cordata (Salica­ ceae) and found that thrips were adapted to individual plant genotypes.

Evolutionary adaptation to host plants in a laboratory population of the phytophagous mite Tetranychus urticae Koch

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Results indicate that T. urticae populations can adapt to a diversity of initially unfavorable hosts, and should be able to respond to temporal and spatial variation in host availability by adapting to the most abundant hosts.

Geographic biotype and host-associated local adaptation in a polyphagous species, Lambdina fiscellaria (Lepidoptera: Geometridae) feeding on balsam fir on Anticosti Island, Canada

TLDR
This is a unique example where local adaptation to environmental conditions of an insect herbivore is expressed through a differential number of larval instars, indicating that a fitness trade-off was the evolutionary process underlying the local adaptation of this population on balsam fir.

LARVAL ADAPTATION TO LAURACEOUS HOSTS: GEOGRAPHIC DIVERGENCE IN THE SPICEBUSH SWALLOWTAIL BUTTERFLY'

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Regional differentiation in genetically based traits for host use indicates the existence of geographic races in P. troilus.
...

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