Results 91 to 100 of about 2,119 (246)

Wing dimorphism of the water strider Limnogonus franciscanus (Stål) (Heteroptera: Gerridae) in a seasonal tropical climate [PDF]

open access: yes, 1997
The seasonal occurrence of wing morphs of Limnogonus franciscanus was studied in a mangrove swamp by taking monthly samples during nineteen months. Altogether 428 males and 413 females were collected.
Nummelin, Matti
core   +2 more sources

Decreased mating propensity of macropterous morph in a flightless wing-polymorphic insect, Pyrrhocoris apterus (Heteroptera)

open access: yesEuropean Journal of Entomology, 2004
The effect of wing length (brachyptery and macroptery) on mating activity was investigated in adult males and females of a flightless wing-polymorphic insect, Pyrrhocoris apterus (L.).
Radomír SOCHA
doaj   +1 more source

Harnessing cracks in metal films: Design strategies for stretchable conductors

open access: yesInfoMat, EarlyView.
In stretchable electronics, metal film‐based components function either as strain‐insensitive interconnects/electrodes or as strain‐sensitive sensors, both of which are governed by crack‐induced electromechanical responses, yet these two roles have often been discussed separately in previous reviews.
Ting Zhu, Kai Wu, Gang Liu, Jun Sun
wiley   +1 more source

Emotional Valence Influences Empathic Capacity in Adolescence and Young Adulthood

open access: yesJournal of Adolescence, EarlyView.
ABSTRACT Introduction Previous research has identified age‐related differences in empathic abilities between adolescence and young adulthood. While cognitive empathy appears to continue to develop from adolescence and into adulthood, the developmental trajectory of affective empathy is less clear.
Alana J. Topsfield, Sarah A. Grainger
wiley   +1 more source

Continuous Variation in Wing Length and Flight Musculature in a Tropical Field Cricket, Teleogryllus derelictus : Implications for the Evolution of Wing Dimorphism [PDF]

open access: yes, 2001
Wing polymorphism with continuous variation in flight musculature was discovered in a tropical field cricket, Teleogryllus derelictus Gorochov derived from Java, Indonesia.
Katagiri, Chihiro   +8 more
core   +1 more source

Ecological correlates of polyphenism and gregarious roosting in the grass yellow butterfly Eurema elathea (Pieridae)

open access: yesBrazilian Journal of Biology
Eurema elathea adults were censused weekly (1992-1994) in six night-roosts around a forest fragment on a farm, and in two roosts in the urban area of Uberlândia, Minas Gerais, Brazil. Males were grouped in six phenotypic classes.
A. Ruszczyk   +3 more
doaj   +1 more source

Beyond the Classics: The Synergy of AI and Genomics Reveals an Expanded Repertoire of Pigmentation Genes

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Classical approaches for coloration analysis are limited by human low‐resolution phenotyping and genetic analysis. Artificial intelligence allows us to find genes beyond the tip of the iceberg that explain color and pattern diversity in nature. ABSTRACT Pigmentation has long served as a powerful system for exploring gene–trait relationships, yet much ...
Ehsan Pashay Ahi, Nidal Karagic
wiley   +1 more source

Two morphs of Indoplanorbis exustus in the aquarium trade. [PDF]

open access: yes, 2016
Two morphs of Indoplanorbis exustus in the aquarium trade.
Heok Hui Tan (2951136)   +6 more
core   +1 more source

Sexual activity in macropterous and brachypterous males of a flightless bug, Pyrrhocoris apterus (Heteroptera)

open access: yesEuropean Journal of Entomology, 2001
The long-winged (macropterous) and short-winged (brachypterous) adult males of Pyrrhocoris apterus (L.) from temperate (Czech Republic) and Mediterranean (Israel) populations were analysed for the sexual activity and the functional activity of their ...
Radomír SOCHA   +2 more
doaj   +1 more source

MR Imaging‐Based Biomarkers for Strength Prediction: A Statistical Shape and Architecture Modeling of Quadriceps Muscles

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Muscle mass decline, associated with strength decline, is a hallmark of aging. Yet, strength decline greatly exceeds mass decline. This indicates that aspects of muscle quality and architecture—not reflected by mass—also influence force generating capacity.
Salim Bin Ghouth   +2 more
wiley   +1 more source

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