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6 results for “Ophraella communa”
Fig. 3 in Relationship between host searching and wind direction in Ophraella communa (Coleoptera: Chrysomelidae)
Fig. 3. Mean numbers (± SE) of Ophraella communa eggs and adults at various cardinal directions from the center of each plot on common ragweed plants in the concentric bands. Data represented by columns bearing the same letters were not significantly different (LSD, a = 0.05). The dominant direction of the wind during the period of the entire experiment was from the south.
Fig. 1 in Relationship between host searching and wind direction in Ophraella communa (Coleoptera: Chrysomelidae)
Fig. 1. Plot design to study the location of host plants by Ophraella communa adults in relation to wind direction. This diagram displays the planting pattern for 1 m wide concentric plots of the host, common ragweed, separated by 1 m wide concentric barriers of a non-host, sunflower.
Fig. 2 in Relationship between host searching and wind direction in Ophraella communa (Coleoptera: Chrysomelidae)
Fig. 2. Wind roses at different dates observed by Changsha Meteorological Observatory from 5 Jul to 15 Aug 2010. The letters a, b, c, d, and e in each small figure represented general wind roses on 5–10 Jul, 11–20 Jul, 21–31 Jul, 1–10 Aug, and 11–15 Aug 2010, respectively.
Larger males facilitate population expansion in Ophraella communa
<div class="WordSection1"> <ol> <li><span><span>One of the most intriguing concepts in animal ecology is the reproductive advantages offered by larger body size, and the females prefer to mate with larger males in order to gain reproductive advantage. </span></span></li> <li><span><span>Currently, it is not clear how females recognize signs of male "quality" and what mechanisms are involved in producing offspring with direct or indirect benefits. Our study aims to assess the preferences of females for males in <i>Ophraella communa</i>, determine the reproductive benefits and reveal the underlying mechanism behind this advantage.</span></span></li> <li><span><span>We demonstrate that male body size is an important determinant in the evolutionary process of <i>O. communa</i>, affecting female mate choice. Moreover, our study establishes that females prefer males with a larger body size, and this could further improve the developmental and reproductive fitness of their offspring. Finally, we focus on the seminal fluid proteins (SFPs) in<i> O. communa</i>, determine differentially expressed genes (i.e., <i>OcACE</i>, <i>OcCBP</i> and <i>OcSFP</i>) by analyzing their proteomes and transcriptomes, and define the role of these SFPs-related genes through RNAi. </span></span></li> <li><span><span>Our study proved that the reproductive benefit of large males may be regulated by biased expression of crucial SFPs genes. The present study advances our understanding of the biological significance of preferential mating.</span></span></li> </ol> </div> <p> </p>
Larger males facilitate population expansion in Ophraella communa
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Supplementary material 1 from: Cardarelli E, Musacchio A, Montagnani C, Bogliani G, Citterio S, Gentili R (2018) Ambrosia artemisiifolia control in agricultural areas: effect of grassland seeding and herbivory by the exotic leaf beetle Ophraella communa. NeoBiota 38: 1-22. https://doi.org/10.3897/neobiota.38.23562
Tables S1–S2, Figures S1–S2 : Explanation note: Table S1. Soil characteristics in the three investigated sites; Table S2. O. communa density on non-target species throughout summer 2015; Figure S1. A. artemisiifolia soil seed bank in the three sites; Figure S2. A. artemisiifolia traits in experimental plots.
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