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10 results for “oviposition strategy”
Figs 3–6. 3 in Observations On The Ovipositing Strategy Of Gortyna Borelii Pierret, 1837 (Lepidoptera, Noctuidae) In A British Population
Figs 3–6. 3 = Gortyna borelii ova beneath the outer leaf sheath of a grass stem (Photo credit: MICKY ANDREWS). 4–6 = Scanning electron microscopy of G. borelii ovum (Photo credit: ZOE RING- WOOD): 4 = 700 µm diameter, 350 µm height; 5 = ribbed surface structure on the side of the ovum (ribs 10 µm in width, aeropyles 2–3 µm in diameter); 6 = micropylar area of the ovum (micropyle 6
Pre- and post-oviposition behavioural strategies to protect eggs against extreme winter cold in an insect with maternal care
<p>Data set and R script supporting the publication entitled "<strong>Pre- and post-oviposition behavioural strategies to protect eggs against extreme winter cold in an insect with maternal care" </strong>by Jean-Claude Tourneur, Claire Cole, Jess Vickruck, Simon Dupont and Joël Meunier.</p> <ul> <li>Script Earwig oviposition - Zenodo v2.R = R script allowing to conduct the stats and obtain the figures presented in the manuscript</li> <li>Part I - Zenodo.txt = Data set of the first part of the experiment about the location of females and eggs until oviposition (included)</li> <li>Part II - Zenodo v2.txt = Data set of the second part of the experiment about the location of eggs after oviposition</li> <li>Readme.txt = details of the variables present in the 2 data sets</li> </ul>
Fig. 2 in Observations On The Ovipositing Strategy Of Gortyna Borelii Pierret, 1837 (Lepidoptera, Noctuidae) In A British Population
Fig. 2. Example ovipositing behavioural observation session
Fig. 1 in Observations On The Ovipositing Strategy Of Gortyna Borelii Pierret, 1837 (Lepidoptera, Noctuidae) In A British Population
Fig. 1. The species on which Gortyna borelii was observed ovipositing
Data from: Oviposition strategies of Pieridae butterflies in nature and the role of an egg-killing plant trait therein
<p>Most herbivorous insects are host-plant specialists that evolved detoxification mechanisms to overcome their host plant's toxins. In the evolutionary arms-races between Pieridae butterflies and Brassicaceae plants, some plant species have evolved another defence against the pierids: egg-killing. Underneath the eggs, leaves develop a so-called hypersensitive response HR-like cell death. Whether some butterflies have evolved oviposition strategies to counter-adapt against egg-killing remains to be studied. In this study, we assessed the oviposition site location of pierid butterflies on their natural host plants. We described the plant tissue on which we located the eggs of the most common Pieridae in the Netherlands: <em>Gonepteryx rhamni, Anthocharis cardamines, Pieris rapae, P. napi, P. brassicae,</em> and<em> P. mannii</em>. Additionally, we assessed expression of HR-like cell death in response to the deposited butterfly eggs. We found that both <em>A. cardamines </em>and <em>G. rhamni </em>mainly oviposited on the floral stem and the branch, respectively, and oviposited on host plants from lineages not expected to express HR in response to pierid eggs. Accordingly, no HR responses were seen. All <em>Pieris</em> eggs found were located on leaves of their host, the only tissue found to express HR-like cell death. Furthermore, each <em>Pieris</em> species was found to at least occasionally oviposit on <em>Brassica nigra</em>. This was the only plant species in this survey that expressed HR-like cell death in response to the eggs of <em>P. rapae, P. napi </em>and <em>P. brassicae</em>. Our observations demonstrate that HR-like cell death remains an effective defence strategy against these <em>Pieris</em> species and as such did not find evidence for the hypothesised counterstrategies. Surveying certain key species and disentangling the micro-evolution of oviposition strategies within a species would allow us to further investigate potential counter-adaptations that evolved against HR-like cell death. This study provides the basis for further investigation of potential counter-adaptations to egg-killing defences.</p>
Data from: Oviposition strategies of Pieridae butterflies in nature and the role of an egg-killing plant trait therein
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Data from: Effects of immune challenge on the oviposition strategy of a noctuid moth
Infections can have detrimental effects on the fitness of an animal. Reproducing females may therefore be sensitive to cues of infection and be able to adaptively change their oviposition strategy in the face of infection. As one possibility, females could make a terminal investment and shift reproductive effort from future to current reproduction as life expectancy decreases. We hypothesized that females of the noctuid moth Heliothis virescens make a terminal investment and adapt their oviposition timing as well as their oviposition site selectivity in response to an immune challenge. We indeed found that females that were challenged with the bacterial entomopathogen Serratia entomophila laid more eggs than control females one night after the challenge. Additionally, bacteria-challenged females were less discriminating between oviposition sites than control females. Whereas control females preferred undamaged over damaged plants, immune-challenged females did not differentiate between the two. These results indicate that terminal investment is part of the life history of H. virescens females. Moreover, our results suggest that the strategy of terminal investment in H. virescens oviposition represents a fitness trade-off for females: in the face of infection, an increase in oviposition rate enhances female fitness, whereas low oviposition site selectivity reduces female fitness.
Figure 2 in Pre-ovipositional and ovipositional behaviour of Lasioseius ometes (Oudemans) and Hypoaspis kargi Costa (Acari: Dermanyssiae: Ascidae, Laelapidae) with notes on egg protection strategies in Mesostigmata
Figure 2. The egg of Lasioseius ometes, with processes on its apex.
Figure 1 in Pre-ovipositional and ovipositional behaviour of Lasioseius ometes (Oudemans) and Hypoaspis kargi Costa (Acari: Dermanyssiae: Ascidae, Laelapidae) with notes on egg protection strategies in Mesostigmata
Figure 1. The egg of Lasioseius ometes, with thorn-like structures on the egg surface.
Data from: Effects of immune challenge on the oviposition strategy of a noctuid moth
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Allen Brain Atlas
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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