Results 41 to 50 of about 8,490 (202)

Two lines of defense in the pupas of ichneumonid wasp parasitoids associated with spider hosts

Frontiers in Ecology and Evolution, 2022
Insects in the pupal stage are vulnerable to various predators because the pupa is immobile. The pupas of parasitoid ichneumonid wasps (Ichneumonidae) associated with spider hosts have evolved two lines of defense against predators, namely a cocoon spun ...
Stanislav Korenko, Jakub Sýkora, Agata Kostro-Ambroziak, Stano Pekár   +3 more
doaj   +1 more source

Domesticated bacterial origin genes regulate homeostasis of the insect gut microbiome and empower adaptation

iMeta, EarlyView.
Horizontal gene transfer introduced bacterial CDC genes into the leafhopper genome, providing genetic material for subsequent evolutionary innovation. Different CDC copies diversified at the sequence, structural, and functional levels. RdCDC3 retained its ancestral pore‐forming activity and was recruited for egg defense, whereas RdCDC9 lost its ...
Zhenjia Zhang, Yubo Zhang, Kun Zhao, Guangyuan Cheng, Zhihao Lu, Dongju Wang, Yiqun Liu, Jianguo Wu, Liying Wang, Lisheng Zhang, Xinhai Ye, Li Yu, Wei Zhang, Yi Li   +13 more
wiley   +1 more source

Chemoreception of Mouthparts: Sensilla Morphology and Discovery of Chemosensory Genes in Proboscis and Labial Palps of Adult Helicoverpa armigera (Lepidoptera: Noctuidae)

Frontiers in Physiology, 2018
Siphoning mouthparts, consisting of proboscis and labial palps, are the exclusive feeding organs and important chemosensory organs in most adult Lepidoptera.
Mengbo Guo, Mengbo Guo, Qiuyan Chen, Yang Liu, Guirong Wang, Zhaojun Han   +5 more
doaj   +1 more source

The shared benefits of fallen fruits: A novel mechanism stabilizing a nursery pollination mutualism between Sambucus and kateretid beetles

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima, Hidehito Okada, Sadatomo Hisamatsu, Kenji Suetsugu   +3 more
wiley   +1 more source

A putative nursery pollination mutualism between Japanese Chrysosplenium plants and Nipponorhynchus sawflies

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding ecological interactions is increasingly important for biodiversity conservation. This study reveals a unique nursery pollination mutualism between Japanese endemic plants and sawflies. These partners exhibit tightly synchronized life cycles in riparian forests, making them sensitive to environmental changes.
Marika Yamaguchi, Hideo Takahashi, Namiki Kikuchi, Takahiro Yoshida, Noriaki Murakami, Yudai Okuyama   +5 more
wiley   +1 more source

Chemosensory input from mouthparts in response to sexually dimorphic cuticular wax mediates male sexual discrimination in Galerucella grisescens (Coleoptera: Chrysomelidae)

Scientific Reports, 2023
The surface of the insect body is covered with a hydrophobic layer called cuticular wax (CW). In addition to functioning as an anti-desiccation agent, CW is critical for chemical communication.
Yuki Chiba, Shun Yosano, Masatoshi Hori
doaj   +1 more source

Impact of Environmental Microparticles on Insect Olfaction

Environmental Toxicology, EarlyView.
ABSTRACT Terrestrial insects underpin key ecosystem services, including pollination, herbivory regulation, decomposition, nutrient cycling, and disease control. These functions depend on chemical communication that guides insects to food, mates, hosts, shelters, and oviposition sites while helping them avoid threats.
Steve B. S. Baleba, Danube K. N. Wandji, Yves H. Tchiechoua, Komi Mensah Agboka, Iman B. Hassaballa, Victor O. Omondi, Beatrice T. Nganso, Saliou Niassy, Souleymane Diallo, Merid N. Getahun   +9 more
wiley   +1 more source

Iflaviruses in arthropods: when small is mighty

Insect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia, Hannah‐Isadora Huditz, Monique M. van Oers, Vera I.D. Ros   +3 more
wiley   +1 more source

Predatory behaviour of some Central European pselaphine beetles (Coleoptera: Staphylinidae: Pselaphinae) with descriptions of relevant morphological features of their heads

European Journal of Entomology, 2008
The Pselaphinae is a large subfamily of staphylinid beetles with a characteristic habitus and small body size. Detailed morphological and behavioural studies on these beetles are scarce.
Andrea SCHOMANN, Kerstin AFFLERBACH, Oliver BETZ   +2 more
doaj   +1 more source

Mouthpart-Atlas of Arctic Sympagic Amphipods—Trophic Niche Separation Based on Mouthpart Morphology and Feeding Ecology [PDF]

Journal of Crustacean Biology, 2005
Abstract The four amphipod species Onisimus nanseni, O. glacialis (Lysianassidae), Gammarus wilkitzkii (Gammaridae), and Apherusa glacialis (Calliopiidae) have been identified earlier as autochthonous sympagic organisms that spend the whole life cycle in close association with the Arctic ice pack.
Carolin E. Arndt, Angelika Brandt, Jørgen Berge   +2 more
openaire   +1 more source