Article
Entomology
Dariusz Krzysztof Malek, Marcin Czarnoleski
Summary: This study focused on the thermal preferences of Callosobruchus maculatus seed beetles, finding that females prefer warmer habitats due to water balance, while mating status or gift size does not affect thermal preferences in either sex.
Article
Entomology
Mason Taylor, Rafael Hayashida, William Wyatt Hoback, John Scott Armstrong
Summary: This study investigated the effects of temperature and host plants on the demographic parameters of the hedgehog grain aphid (HGA). The optimal temperature for HGA development and reproduction was found to be between 20°C and 25°C. HGA development was hindered at temperatures below 10°C and above 35°C. The HGA completed its life cycle on different host plants, indicating a lack of resistance to HGA by a sorghum that is resistant to a related aphid species.
Article
Horticulture
Francisco Ruben Badenes-Perez, David G. Heckel
Summary: Based on the experiments conducted, the diamondback moth, a major pest of cruciferous crops, does not show preference for the abaxial or adaxial leaf surfaces or for host plants based on their diet. However, larval preference is influenced by glucosinolate content, indicating that crops with higher glucosinolate content are more susceptible to damage by the diamondback moth. These findings are significant in the management of this pest.
Article
Entomology
Paul M. Severns, Melinda Guzman-Martinez
Summary: Taylor's checkerspot butterfly, a critically endangered species in northwestern North America, is facing a threat from an invasive plant pathogen that is causing the death of its primary food plant, English plantain, during the winter months. The invasion has disrupted the eco-evolutionary foodplant interactions and poses a risk of extinction to butterfly populations. Despite the presence of a native larval food plant Collinsia parviflora, it is rare in Taylor's checkerspot habitat and may only be suitable for Washington populations.
Article
Multidisciplinary Sciences
Hyoseok Lee, William M. Wintermantel, John T. Trumble, Trevor M. Fowles, Christian Nansen
Summary: Modeling oviposition as a function of various factors can provide insight into population growth of polyphagous insect pests. In this study, oviposition by beet leafhoppers on four non-agricultural host plants was quantified at different temperatures. Oviposition models were validated and the relative suitability of host plants was determined. The study highlights the importance of experimental assays, modeling, and validation in understanding insect population dynamics.
Review
Virology
Rosalba Rodriguez-Pena, Kaoutar El Mounadi, Hernan Garcia-Ruiz
Summary: Viruses depend on host factors at all stages of the infection cycle, and viral infection can lead to changes in plant gene expression and the subcellular localization of host proteins, potentially influencing virus accumulation and spread. Research shows that during viral infection, host cytoplasmic proteins can move to virus replication sites and participate in viral processes.
Article
Entomology
Adam Formella, Kelly McIntyre, Thomas P. Kuhar
Summary: The brown marmorated stink bug is an invasive pest that causes economic losses to various crops in North America. This study investigates the effect of different vegetable hosts on the survival and development of the pest. The researchers found that the survival rate of the pest's nymphs from late-season eggs was higher on all vegetables except tomatoes, and corn and peppers were the most suitable vegetables for the pest's development.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2022)
Article
Plant Sciences
R. Bozbuga, S. Yildiz, E. Yuksel, G. Ozer, A. A. Dababat, M. Imren
Summary: Citrus plants are susceptible to various nematode species, with the citrus root nematode causing significant damage worldwide. This study assessed nematode species and density, host preference, and molecular and morphological characteristics. The lowest nematode density was found in C. reticulata in Mersin, while the highest density was in C. sinensis in Hatay. The research revealed that citrus nematode populations fluctuate according to specific citrus species and are influenced by environmental and ecological factors.
Article
Entomology
Anne E. Cure, David M. Althoff, Kari A. Segraves
Summary: Host plant shifts are important for diversification in insect herbivores. Whole-genome duplication in the host plant can impact the preference and performance of the specialist aphid, indicating that it may be a mechanism of host expansion.
ECOLOGICAL ENTOMOLOGY
(2023)
Article
Entomology
Alfonce Leonard, James P. Egonyu, Chrysantus M. Tanga, Samuel Kyamanywa, Sunday Ekesi, Fathiya M. Khamis, Sevgan Subramanian, Christos Athanassiou
Summary: Investigated the development, survival, and reproduction of R. differens on diets mixed with host plants, and found that the inclusion of host plants can enhance the survival, development, and fecundity of R. differens.
JOURNAL OF INSECT SCIENCE
(2022)
Article
Psychology, Multidisciplinary
Samantha Moore, Craig P. Speelman, Marek McGann
Summary: This study re-analyzed data from 9 famous experiments that had been successfully replicated, showing that 7 of these experiments demonstrated a pervasiveness of over 80%, supporting the robustness of these effects. However, the remaining 2 experiments did not meet the pervasiveness criterion, raising doubts about their reproducibility. The pervasiveness analysis proved to be a useful adjunct to traditional forms of analysis, providing directly relevant information regarding the reproducibility of psychological effects.
NEW IDEAS IN PSYCHOLOGY
(2023)
Article
Ecology
Rachel A. Steward, Rebecca S. Epanchin-Niell, Carol L. Boggs
Summary: Introductions of novel plant species can disrupt the resource environment of herbivorous insects, leading to selection for or against the novel host. This study on Pieris macdunnoughii butterflies in the Rocky Mountains found evidence of sex-linked genetic variation in host preference, contrary to previous predictions. The study also suggested that chemicals might not be the primary driver for female choice of host plants.
Article
Plant Sciences
Eric C. Yip, Consuelo M. De Moraes, John F. Tooker, Mark C. Mescher
Summary: The tall goldenrod plants have the ability to eavesdrop on communication of gall-inducing flies, priming their defense mechanisms based on male fly emissions. The effects of this defense priming vary depending on plant genotype and male fly age, with younger males reducing galling success and older males slightly improving it. Female flies have evolved the ability to assess plant quality based on these priming cues, avoiding plants primed by younger males and preferring those primed by older males.
JOURNAL OF ECOLOGY
(2021)
Article
Multidisciplinary Sciences
Mohammed A. Khallaf, Medhat M. Sadek, Peter Anderson
Summary: Unlike mammals, most invertebrates do not provide direct parental care, making the selection of an appropriate oviposition site crucial. Little is known about how females evaluate opportunities and threats during host selection. In this study, we examined oviposition choice in Spodoptera littoralis, a polyphagous pest, between two plants of different nutritional quality. We found that females prefer to lay their eggs on the host plant with inferior larval development and more natural enemies, but lower predation rates. The behavior of predators and the attraction to herbivore-induced volatiles play a role in enemy-free space, rather than predator abundance.
Article
Entomology
Marcilio Fagundes, Zaura Couto Fernandes, Frederico Siqueira Neves, Geraldo Wilson Fernandes, Pablo Cuevas-Reyes, Tatiana Cornelissen
Summary: Characterising host selection mechanisms and insect performance on different hosts is important for ecology and entomology. In this study, we tested two hypotheses regarding seed-predating insects on three species of Copaifera trees. We found that the large-sized Copaifera langsdorffii had greater seed mass, contradicting our hypothesis. Rhinochenus brevicollis preyed on a higher percentage of seeds than Apion sp., and their dispersal ability may be driving differential seed predation among Copaifera species. Adult insects from larger seeds had higher body mass and lipidic content. These findings highlight the need to understand insect performance on different host-sized seeds to understand host selection by beetles.
ECOLOGICAL ENTOMOLOGY
(2023)
Article
Entomology
Alexander Schapers, Mikael A. Carlsson, Gabriella Gamberale-Stille, Niklas Janz
JOURNAL OF INSECT BEHAVIOR
(2015)
Article
Ecology
Alexander Schapers, Soren Nylin, Mikael A. Carlsson, Niklas Janz
Article
Behavioral Sciences
Ulrika A. Bergvall, Alexander Schapers, Petter Kjellander, Alexander Weiss
Article
Behavioral Sciences
Mikael A. Carlsson, Alexander Schapers, Dick R. Nassel, Niklas Janz
Article
Multidisciplinary Sciences
Mikael A. Carlsson, Sonja Bisch-Knaden, Alexander Schaepers, Raimondas Mozuraitis, Bill S. Hansson, Niklas Janz
Article
Ecology
Hampus Petren, Gabriele Gloder, Diana Posledovich, Christer Wiklund, Magne Friberg
Summary: The study on Pieris rapae found that females are not significantly influenced by larval imprinting during oviposition, but experience of laying eggs on a less-preferred host can slightly increase their propensity to oviposit on that host in subsequent trials. No transgenerational effects were observed on female host acceptance or preference, but negative effects on larval performance were found, especially on the host that the females developed on as larvae.
ECOLOGY AND EVOLUTION
(2021)
Article
Plant Sciences
Hampus Petren, Per Torang, Jon Agren, Magne Friberg
Summary: The study compared flower size and floral scent emission in different populations of Arabis alpina, and found that self-compatible populations had smaller and less scented flowers compared to self-incompatible populations. However, there was no significant difference in flower size and scent emission between self-compatible populations with high and low capacity for autonomous self-pollination. Floral scent composition varied between self-compatible and self-incompatible populations, as well as among populations within each category.
Article
Ecology
Victoria J. Luizzi, Magne Friberg, Hampus Petren
Summary: This study investigated the effects of nutrient and water availability on floral scent in Arabis alpina populations. Overall, floral scent emission showed limited phenotypic plasticity in response to nutrient conditions, but the total amount of scent emitted by plants may increase more strongly at higher nutrient availabilities due to an increase in flower production. Fitness benefits due to increased scent emission rates under favourable nutrient conditions might depend on the extent to which floral scent serves as a long- or short-distance pollinator attractant for the focal plant species.
FUNCTIONAL ECOLOGY
(2021)
Article
Ecology
Hampus Petren, Hanna Thosteman, Marc Stift, Per Toreang, Jon Agren, Magne Friberg
Summary: Mating system shifts from outcrossing to selfing are common in plant evolution. Selfing reduces parental conflict over seed provisioning, potentially leading to postzygotic, asymmetric, reproductive isolation between populations. In a crossing experiment with Arabis alpina, we found strong reproductive isolation between self-compatible and self-incompatible populations, resulting in smaller and less viable seeds. Differences in parental conflict also influenced seed mass, with larger seeds produced when the paternal plant had the stronger genome. These findings suggest that differences in mating system and parental conflict can contribute to strong post-pollination reproductive barriers and speciation.
Article
Plant Sciences
Hampus Petren, Tobias G. G. Koellner, Robert R. R. Junker
Summary: Plants produce a large number of phytochemical compounds that affect their physiology and interactions with the environment. Chemodiversity, which characterizes the phenotype of a mixture of phytochemical compounds, has attracted attention in ecological and evolutionary studies. However, current measures of phytochemical diversity do not consider the structural or biosynthetic properties of compounds, limiting their usefulness. The R package chemodiv is introduced to address this issue by retrieving biochemical and structural properties of compounds and providing functions for quantifying and visualizing chemical diversity and dissimilarity.