Adult Density and the Rate of Colorado Potato Beetle (Coleoptera: Chrysomelidae) Flight Take-Off

Sandeson, P. D; Boiteau, Gilles; Blanc, Jean-François

doi:10.1603/0046-225x-31.3.533

Cited by 16 publications

(16 citation statements)

References 18 publications

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“…In each group, relatively short distances and few geographic barriers might favor natural dispersal. CPB have an intrinsic migration trait and a substantial proportion of beetles continue to move even after finding a host plant within a population (Weber & Ferro, ; Sandeson et al , ; ). In general, it can fly several kilometers on its own (Voss & Ferro, ; Ferro et al ., ; Zhang, ), and with wind, may spread further (Johnson, ).…”

Section: Discussionmentioning

confidence: 99%

“…We tested a correlation between geographical and genetic distance (Slatkin's linear F ST , F ST /(1− F ST ), and D ′) over all samples in Xinjiang as well as among and within each group defined by Structure (Mantel procedure, GenAlEx 6.2, Peakall & Smouse, ). The neighbor‐joining method was used to estimate a phylogenetic tree based on D ′ with 10 000 bootstrap replicates (Saitou & Nei, ; PHYLIP package 3.68, Felsenstein, ).…”

Section: Methodsmentioning

confidence: 99%

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Genetic relationships of introduced Colorado potato beetle Leptinotarsa decemlineata populations in Xinjiang, China

Zhang¹,

Yang²,

Li³

et al. 2012

Insect Science

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The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), is an infamous invasive species worldwide that aggressively attacks potato and other Solanaceae crops. CPB was first found in China in 1993 and has since spread across 2.77 × 10 5 km 2 in Xinjiang Uygur Autonomous Region. To better understand genetic variation and migration patterns, we used seven polymorphic microsatellite loci to elucidate the genetic relationships and gene flow among 10 CPB populations across Xinjiang. (i) Overall low levels of genetic diversity were detected on the entire population in Xinjiang but most of the diversity was retained among populations during invasion.(ii) The mean pairwise F ST was low (0.071 ± 0.043) among populations. The genetic differentiation was little (pairwise F ST 0.038 ± 0.016) between the five interior populations (Wusu, Urumqi, Jimsar, Qitai and Mulei) and Tacheng population. The six populations might come from the same genetic group via Bayesian clustering and were closely related on a neighbor-joining tree. Combining the history data, the five interior populations may have originated from Tacheng.(iii) Gene flow was frequent, especially among the five interior populations. Individuals from the interior populations could be assigned to Tacheng at higher probabilities (means 0.518 ± 0.127) than vice versa (means 0.328 ± 0.074), suggesting that the beetle population has spread from the border to the interior in Xinjiang.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Genetic relationships of introduced Colorado potato beetle Leptinotarsa decemlineata populations in Xinjiang, China

Zhang¹,

Yang²,

Li³

et al. 2012

Insect Science

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“…The walking path tests were conducted outdoors within 5–9 days of the transfer. Leptinotarsa decemlineata originating from rearing colonies are usually considered to be similar to adults emerged in the host field (summer adults) because of their lack of previous exposure to diapausing conditions and their exposure to host plants on emergence (Sandeson et al , 2002).…”

Section: Methodsmentioning

confidence: 99%

Random movement pattern of fed and unfed adult Colorado potato beetles in bare‐ground habitat

Gui

Boiteau

Colpitts

et al. 2011

Agri and Forest Entomology

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1 Although the successful management of the Colorado potato beetle Leptinotarsa decemlineata (Say) depends on the prevention of its dispersal, its walking pattern in the landscape remains poorly understood. In the present study, post-diapause, early summer, late summer and colony adult beetles, both fed and unfed before release, were tracked with a harmonic radar to establish their walking movement pattern in a bare-ground field. 2 The random walk model successfully described the dispersal of all beetle types, whether fed or unfed. 3 The diverse life history of this species was manifested by an increased distance travelled and deviations of individual paths from the random model. Starved postdiapause beetles travelled furthest and individual paths deviating from random were both local and directed, probably aiming to maximize opportunities for host colonization. Starved early summer beetles also travelled further than fed beetles but relied more on random movement to disperse in the habitat. Starving had little impact on the distance travelled or the path deviations of late summer beetles that are searching for overwintering site rather than hosts. 4 The increased displacement of starving beetles over fed beetles corresponded with an increased walking step and index of straightness. 5 The impact of starvation on travel distance was greater than expected from laboratory tests. 6 In conclusion, the results obtained in the present study suggest a random walking pattern to search arable land until host volatile or visual impulses trigger a more directed walk or flight.

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“…[29]), and the proven feasibility of density-dependence experiments (e.g. [30], [31]). The small spatial scale of our experiment, and the short temporal scale seemed relevant for this species given frequent and short-lasting matings (e.g.…”

Section: Introductionmentioning

confidence: 99%

Female Fertilization: Effects of Sex-Specific Density and Sex Ratio Determined Experimentally for Colorado Potato Beetles and Drosophila Fruit Flies

et al. 2013

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If males and females affect reproduction differentially, understanding and predicting sexual reproduction requires specification of response surfaces, that is, two-dimensional functions that relate reproduction to the (numeric) densities of both sexes. Aiming at rigorous measurement of female per capita fertilization response surfaces, we conducted a multifactorial experiment and reanalyzed an extensive data set. In our experiment, we varied the density of male and female Leptinotarsa decemlineata (Colorado potato beetles) by placing different numbers of the two sexes on enclosed Solanum tuberosum (potato plants) to determine the proportion of females fertilized after 3 or 22 hours. In the reanalysis, we investigated how the short-term fertilization probability of three Drosophila strains (melanogaster ebony, m. sepia, and simulans) depended on adult sex ratio (proportion of males) and total density. The fertilization probability of female Leptinotarsa decemlineata increased logistically with male density, but not with female density. These effects were robust to trial duration. The fertilization probability of female Drosophila increased logistically with both sex ratio and total density. Treatment effects interacted in m. sepia, and simulans. These findings highlight the importance of well-designed, multifactorial experiments and strengthen previous experimental evidence for the relevance of sex-specific densities to understanding and prediction of female fertilization probability.

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Adult Density and the Rate of Colorado Potato Beetle (Coleoptera: Chrysomelidae) Flight Take-Off

Cited by 16 publications

References 18 publications

Genetic relationships of introduced Colorado potato beetle Leptinotarsa decemlineata populations in Xinjiang, China

Genetic relationships of introduced Colorado potato beetle Leptinotarsa decemlineata populations in Xinjiang, China

Random movement pattern of fed and unfed adult Colorado potato beetles in bare‐ground habitat

Female Fertilization: Effects of Sex-Specific Density and Sex Ratio Determined Experimentally for Colorado Potato Beetles and Drosophila Fruit Flies

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