Polyandry, genetic diversity and fecundity of emigrating beetles: understanding new foci of infestation and selection

McCulloch, Graham A.; Daglish, Gregory J.; Gurdasani, Komal; Walter, Gimme H.

doi:10.1007/s10340-017-0902-8

Cited by 20 publications

(10 citation statements)

References 65 publications

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“…However, there is scant empirical evidence for such dispersal‐polyandry covariances (Rafter et al. 2017; Rhainds 2017). There is, unsurprisingly, even less data on reproductive traits of dispersers that fail to breed.…”

Section: Discussionmentioning

confidence: 99%

Recent immigrants alter the quantitative genetic architecture of paternity in song sparrows

Reid

Arcese

2020

Evolution Letters

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Quantifying additive genetic variances and cross-sex covariances in reproductive traits, and identifying processes that shape and maintain such (co)variances, is central to understanding the evolutionary dynamics of reproductive systems. Gene flow resulting from among-population dispersal could substantially alter additive genetic variances and covariances in key traits in recipient populations, thereby altering forms of sexual conflict, indirect selection, and evolutionary responses. However, the degree to which genes imported by immigrants do in fact affect quantitative genetic architectures of key reproductive traits and outcomes is rarely explicitly quantified. We applied structured quantitative genetic analyses to multiyear pedigree, pairing, and paternity data from free-living song sparrows (Melospiza melodia) to quantify the differences in mean breeding values for major sexspecific reproductive traits, specifically female extra-pair reproduction and male paternity loss, between recent immigrants and the previously existing population. We thereby quantify effects of natural immigration on the means, variances, and cross-sex covariance in total additive genetic values for extra-pair paternity arising within the complex socially monogamous but genetically polygynandrous reproductive system. Recent immigrants had lower mean breeding values for male paternity loss, and somewhatlower values for female extra-pair reproduction, than the local recipient population, and would therefore increase the emerging degree of reproductive fidelity of social pairings. Furthermore, immigration increased the variances in total additive genetic values for these traits, but decreased the magnitudes of the negative cross-sex genetic covariation and correlation below those evident in the existing population. Immigration thereby increased the total additive genetic variance but could decrease the magnitude of indirect selection acting on sex-specific contributions to paternity outcomes. These results demonstrate that dispersal and resulting immigration and gene flow can substantially affect quantitative genetic architectures of complex local reproductive systems, implying that comprehensive theoretical and empirical efforts to understand mating system dynamics will need to incorporate spatial population processes.

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Section: Discussionmentioning

confidence: 99%

Recent immigrants alter the quantitative genetic architecture of paternity in song sparrows

Reid

Arcese

2020

Evolution Letters

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“…This strategy is especially important given that R. dominica , a primary pest of grain that causes severe economic damage to stored products [ 24 ], is the most widespread and prevalent species. Further, based on field studies the majority of female R. dominica and T. castaneum have mated prior to dispersal [ 16 , 17 , 53 ], thus providing a mechanism for a rapid increase in the establishing population.…”

Section: Discussionmentioning

confidence: 99%

“…In particular, R. dominica is a highly adaptive species that has developed resistance to several stored grain insecticides [ 2 , 3 , 54 ]. This resistance may be exacerbated by the high degree of polyandry found in both R. dominica and T. castaneum captured in flight [ 53 ]. Multiple matings increase the probability of an individual female carrying genes for resistance.…”

Section: Discussionmentioning

confidence: 99%

Spatial Distribution and Flight Patterns of Two Grain Storage Insect Pests, Rhyzopertha dominica (Bostrichidae) and Tribolium castaneum (Tenebrionidae): Implications for Pest Management

Holloway

Daglish²,

Mayer³

2020

Insects

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The lesser grain borer, Rhyzopertha dominica, and the rust red flour beetle, Tribolium castaneum, are two major beetle pests commonly found infesting stored products worldwide. Both species can cause severe economic damage and their management is complicated by their potential to develop resistance to several of the limited chemical options available. However, pest management strategies can be improved by understanding the ecology of the pest insect. To determine the spatiotemporal activity of R. dominica and T. castaneum, we conducted a trapping study over two years in a temperate region of south-eastern Australia, with traps located near grain storages and fields. We captured higher numbers of R. dominica than T. castaneum, and both species were more prevalent in traps located close to grain storages. Similar and consistent seasonal patterns were displayed by both species with activity ceasing during the winter (June–August) months. We found linear correlations between maximum daily temperatures and trap catches, and minimum threshold temperatures for flight activity were 14.5 °C and 15.6 °C for R. dominica and T. castaneum, respectively. The results are discussed in relation to the ecology of these pests along with their implications for pest management.

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“…Dispersal is also of central importance to population biology, behavioral ecology, and conservation ( Rudd and McEvoy 1996 ). Therefore, insect dispersal has a key role in predicting population spread, improving eradication surveys, and successfully managing of destructive pest populations ( Mazzi and Dorn 2012 , Rafter et al 2018 ). In addition, an understanding of the dispersal behavior of natural enemies can assist in developing effective augmentative release strategies and in assessing the spread and potential nontarget effects of an introduced natural enemy ( Smith 1996 , Orr et al 2000 ).…”

mentioning

confidence: 99%

Movement Behavior of the Pine Needle Gall Midge (Diptera: Cecidomyiidae)

Liu

Chun-hua

et al. 2020

Journal of Insect Science

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The movement behavior of the pine needle gall midge (Thecodiplosis japonensis Uchida Et Inouye (Diptera: Cecidomyiidae)), an invasive species in China, was determined by using a tethered flight technique and digital videography in the laboratory. The flight distance, duration, and speed of females were compared at different ages (2–10 h) and ambient temperatures (17, 21, 26, and 30°C). Female flight distance and duration at 26°C were significantly greater than those at 17°C and 21°C. The age of T. japonensis did not significantly affect the three flight characteristics. For females at 2–10 h of age at 26°C and 70% RH, the maximum flight distance was 667.59 m; the longest flight time was 6,222.34 s; and the fastest flight speed was 0.44 m·s−1. For larvae wetted with water, the highest jump was 5.7 cm; the longest jump was 9.6 cm; and the greatest distance moved in 5 min was 27.13 cm, which showed that the active dispersal potential of larvae was very low.

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Polyandry, genetic diversity and fecundity of emigrating beetles: understanding new foci of infestation and selection

Cited by 20 publications

References 65 publications

Recent immigrants alter the quantitative genetic architecture of paternity in song sparrows

Recent immigrants alter the quantitative genetic architecture of paternity in song sparrows

Spatial Distribution and Flight Patterns of Two Grain Storage Insect Pests, Rhyzopertha dominica (Bostrichidae) and Tribolium castaneum (Tenebrionidae): Implications for Pest Management

Movement Behavior of the Pine Needle Gall Midge (Diptera: Cecidomyiidae)

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