Results 111 to 120 of about 2,119 (246)

Nutrition- and sex-dependent utilization of body resources in relation to reproduction in a scorpionfly. [PDF]

, 2010
Engqvist L, Sauer KP, Engels S. Nutrition- and sex-dependent utilization of body resources in relation to reproduction in a scorpionfly. Biological Journal of the Linnean Society.
KLAUS PETER SAUER, Engqvist, Leif, Sauer, Klaus Peter, SIERK ENGELS, Engqvist, Leif ; https://orcid.org/, Engels, Sierk, LEIF ENGQVIST   +6 more
core   +2 more sources

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

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

A conserved supergene locus controls colour pattern diversity in Heliconius butterflies [PDF]

, 2006
We studied whether similar developmental genetic mechanisms are involved in both convergent and divergent evolution. Mimetic insects are known for their diversity of patterns as well as their remarkable evolutionary convergence, and they have played an ...
Karen Barlow, Jesús Mavárez, Moisés Abanto, Humphray, S.J., Rogers, J., Papa, Riccardo, Abanto, M, Mallet, J, Chamberlain Nicola, Jiggins, CD, Bermingham, Eldredge, Mallet, J., Baxter, Simon, Papa, R, Mavárez, J, Beltrán, M, Humphray Sean J., Simon Baxter, Abanto, Moisés, Barlow Karen, ffrench-Constant, Richard, Baxter Simon, Jane Rogers, Joron Mathieu, Humphray Sean J, Abanto, M., Barlow, K, Mathieu Joron, ffrench-Constant, Richard H, Chamberlain, N., Beasley, H., McMillan, WO, Jiggins, C.D., H. ffrench-Constant Richard, Joron, M., Mavárez, J., McMillan, W.O., Papa Riccardo, McMillan, W Owen, Chris D Jiggins, Baxter, S., Mallet, James, Joron, M, Jiggins Chris D, Baxter, S, Chamberlain, Nicola, Helen Beasley, Rogers Jane, Richard H ffrench-Constant, Mallet James, Bermingham, E., Humphray, Sean J, Eldredge Bermingham, McMillan W. Owen, ffrench-Constant Richard H., Rogers, J, Jiggins Chris D., W Owen McMillan, Beltrán Margarita, Mavárez, Jesús, Margarita Beltrán, Beltrán, Margarita, PAPA R, Humphray, SJ, Mavárez Jesús, Riccardo Papa, Barlow, Karen, Jiggins, Chris D, Sean J Humphray, Beasley Helen, Joron, Mathieu, Bermingham, E, Beasley, Helen, Ffrench-Constant, R.H., ffrench-Constant, RH, Bermingham Eldredge, Rogers, Jane, Beasley, H, Abanto Moisés, Papa, R., Barlow, K., Chamberlain, N, Beltrán, M., James Mallet, Nicola Chamberlain   +84 more
core   +1 more source

Morphing wing optimization for steady level flight

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2016
This paper presents the basic results of the morphing wing planform optimization of an experimental unmanned air vehicle for minimum drag at steady level flight. The aerodynamic design tool that consists of the three-dimensional panel method, two-dimensional boundary layer solution and generalized reduced gradient method-based optimization is ...
Korpe, Durmus S., Ozgen, Serkan
openaire   +2 more sources

Physical Anchoring‐Assisted Mechanically Guided Assembly for Material‐Independent 3D Mesostructures

Small, EarlyView.
Conventional mechanically guided 3D assembly relies on selective chemical bonding between 2D precursors and elastomeric substrates, imposing fundamental limitations on material compatibility and scalability. Here, we present a physically anchored, buckling‐guided assembly platform based on a rod array patterned elastomeric substrate (RPES).
Yeonhee Heo, Pei Liu, Jeongmin Yoo, Jae Hyuk Hwang, Gooyoon Chung, Dong‐Gyun Kim, Raudel Avila, Yoonseok Park   +7 more
wiley   +1 more source

Asymmetrical colour and wing-folding in Tithrone roseipennis (Saussure 1870) a neotropical praying mantis (Mantodea Hymenopodidae) [PDF]

, 1999
The frequency and type of forewing colour asymmetry present in Tithrone roseipennis (Saussure 1870) (Mantodea Hymenopodidae) was examined and 29 out of 35 specimens had red/green forewing colour asymmetry.
Hancock, E.G., Barabás, S.P.
core   +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

Enzymological and Radiotracer Studies of lipid Metabolism in the Flight-Capable and Flightless Morphs of the Wing-Polymorphic Cricket, \u3ci\u3eGryllus firmus\u3c/i\u3e [PDF]

, 2001
The flight-capable morph of the wing-polymorphic cricket, Gryllus firmus, exhibited significantly higher activities of each of five lipogenic enzymes compared with the obligately flightless morph on a standard and a high-carbohydrate diet during early ...
Zera, Anthony J., Zhao, Z.
core   +1 more source

Alarm pheromone mediates production of winged dispersal morphs in aphids [PDF]

, 2005
The aphid alarm pheromone (E)-β-farnesene (EBF) is the major example of defence communication in the insect world. Released when aphids are attacked by predators such as ladybirds or lacewing larvae, aphid alarm pheromone causes behavioural reactions ...
Weisser, Wolfgang, Gershenzon, Jonathan, Gershenzon, J., Röse, U. S. R., Rose, U., Otto, S., Röse, Ursula S. R., Weisser, W. W., Kunert, G., Kunert, Grit, Weisser, W.   +10 more
core   +1 more source