Results 81 to 90 of about 1,685 (231)

Morphological variation and sex-biased frequency of wing dimorphism in the pygmy grasshopper Tetrix subulata (Orthoptera: Tetrigidae)

European Journal of Entomology, 2013
Dimorphism in wing length is well known in many insect species. It is generally believed that a trade-off between dispersal and reproduction exists, with the long-winged (LW) morph being a better disperser due to its superior flight capability. The short-
Anja STEENMAN, Arne W. LEHMANN, Gerlind U.C. LEHMANN   +2 more
doaj   +1 more source

Association between host wing morphology polymorphism and Wolbachia infection in Vollenhovia emeryi (Hymenoptera: Myrmicinae)

Ecology and Evolution, 2020
Many eusocial insects, including ants, show complex colony structures, distributions, and reproductive strategies. In the ant Vollenhovia emeryi Wheeler (Hymenoptera: Myrmicinae), queens and males are produced clonally, while sterile workers arise ...
Pureum Noh, Seung‐Yoon Oh, Soyeon Park, Taesung Kwon, Yonghwan Kim, Jae Chun Choe, Gilsang Jeong   +6 more
doaj   +1 more source

Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone

Journal of Field Robotics, EarlyView.
ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown, Robert Clarke, Ali Akbari, Ferdian Jovan, Jameel Marafie, Ognjen Marjanovic, Sara Bernardini, Tom Richardson, Simon Watson   +8 more
wiley   +1 more source

From 0D to 3D liquid crystal elastomers architectures: Fabrications and applications

Responsive Materials, EarlyView.
This review presents a dimension‐oriented overview of liquid crystal elastomers (LCEs), highlighting their molecular alignment, fabrication strategies, and programmable deformations from 0D particles to 3D architectures. Emphasis is placed on how dimensionality guides design principles, enables diverse actuation modes, and bridges fundamental ...
Mingxuan Liu, Zongxuan Wu, Jinquan Zheng, Yidan Zhu, Yanjun Liu, Lingling Ma, Wei Hu, Yan‐Qing Lu, Dan Luo   +8 more
wiley   +1 more source

Stress‐guided photo‐programming of cholesteric liquid crystal elastomers for 2D‐to‐3D shape–color information encoding

Responsive Materials, EarlyView.
We reported a stress‐guided photo‐programming strategy that enables cholesteric liquid crystal elastomers (CLCEs) to achieve synchronous 3D shape morphing and structural color evolution from a single 2D film. Abstract Flexible materials with dynamic structural colors have attracted considerable interest for multilevel information interaction, showing ...
Huimin Wu, Chenyi Bu, Yirui Sun, Rui Guo, Sixing Xiong, Kai Wang, Xiaoxuan Wang, Xiang Fang, Jin Qian   +8 more
wiley   +1 more source

Do long- and short-winged adult females of the bug Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) differ in lifespan and reproductive capacity?

European Journal of Entomology, 2013
In the present study we tested whether long-winged (macropterous) and short-winged (brachypterous) adult females of the firebug Pyrrhocoris apterus (L.) differ in their reproductive capacity and length of life.
Radomír SOCHA
doaj   +1 more source

Ionogel Actuators: A Review

SmartBot, EarlyView.
Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao, Dongqing He, Yuanxiang Zhao, Dongdong Jin, Jiaheng Zhang, Wei Wang   +5 more
wiley   +1 more source

Corpus allatum volume-dependent differences in accessory gland maturation in long- and short-winged males of Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

European Journal of Entomology, 2006
In the present study the temporal changes in the volume of the corpus allatum in three experimental groups of adult males (macropterous, reproductive brachypterous and diapausing brachypterous) of the flightless bug Pyrrhocoris apterus were determined ...
Radomír SOCHA, Magdalena HODKOVÁ
doaj   +1 more source

The Relevance and Resilience of Evo‐Devo in 2025: The Biennial Meeting of the Pan American Society for Evolutionary Developmental Biology

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Mark Rebeiz, Jennifer A. Brisson, Chris Amemiya, D. Nathaniel Clarke, Tetsuya Nakamura, Leslie Pick, Patricia Schneider, Yuichiro Suzuki, Christina Zakas, Karen D. Crow   +9 more
wiley   +1 more source

Evaluating machine learning models for multi‐species wildlife detection and identification on remote sensed nadir imagery in South African savanna

Wildlife Biology, EarlyView.
This research paper investigates the efficacy of leading machine learning (ML) models for detecting and identifying ungulate species in African savanna using nadir imagery from unmanned aerial vehicles (UAVs). Traditional aerial counting methods, while widely used, suffer from significant limitations in accuracy and precision, in part due to human ...
Paul Allin, Fadel Seydou, Radloff Frans, Andrew Davies, Alison Leslie   +4 more
wiley   +1 more source