Results 61 to 70 of about 3,578 (189)
Why are some species sexually dimorphic while other closely related species are not? While all females in genus Strauzia share a multiply-banded wing pattern typical of many other true fruit flies, males of four species have noticeably elongated wings ...
Alaine C. Hippee +3 more
doaj +1 more source
Extreme Silk Toughness in Caerostris Spiders Is Limited to Adult Females
We ask whether species with exceptionally tough silk, like Caerostris bark spiders, show different developmental patterns in silk toughness between ontogenetic stages and sexes. We found that only large females produce exceptionally tough silk with higher initial stiffness, while juvenile females as well as adult and juvenile males produce inferior ...
Matjaž Gregorič +4 more
wiley +1 more source
Geometric morphometric analysis describing sexual dimorphism in housefly, Musca domestica Linn. (Diptera: Muscidae) [PDF]
Houseflies (Musca domestica) (Diptera: Muscidae) are medically important insect species because they serve as vectors of pathogens. The study generally described the sexual dimorphism of M. domestica based on their wing size and wing shape.
Ernel D. Bagbag, Helen B. Pondevida
doaj
Sex‐dependent and sex‐independent regulatory systems of size variation in natural populations
Size of organs/organisms is a polygenic trait. Many of the growth‐regulatory genes constitute conserved growth signaling pathways. However, how these multiple genes are orchestrated at the systems level to attain the natural variation in size including ...
Hirokazu Okada +4 more
doaj +1 more source
Seasonal polyphenism in Eristalis pertinax (Diptera: Syrphidae)
Eristalis pertinax varies seasonally, with the spring morph more hairy than the summer morph. We measured the size and the venation of the wings of the seasonal morphs.
Lukasz E. MIELCZAREK +3 more
doaj +1 more source
Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley +1 more source
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
Transcriptomics Unveil Dsx1 as a Critical Regulator in Sexual Dimorphism of Crustaceans
Sexually dimorphic traits are involved in reproductive competition and are shaped by sex‐biased gene expression. This study identifies Dsx1 as a key male‐biased gene in Morinoia aosen and demonstrates through RNA interference that its disruption feminizes male‐specific T3 leg structures.
Yan Tong +8 more
wiley +1 more source
Sexual dimorphism and plasticity in wing shape in three Diptera [PDF]
Abstract The ability of powered flight in insects facilitated their great evolutionary success allowing them to occupy various ecological niches. Beyond this primary task, wings are often involved in various premating behaviors, such as the generation of courtship songs and the initiation of mating in flight.
Micael Reis +3 more
openaire +1 more source
It's Complicated: How Sex, Family, and Season Affect Growth of a Sexually Size Dimorphic Spider
Extreme female‐biased sexual size dimorphism (SSD) in Nephilingis cruentata emerges when male and female growth trajectories diverge mid‐development. Seasonal effects influence both sexes similarly, but family effects are strongly sex‐specific. These patterns identify a critical developmental window for mechanistic studies of SSD.
Tim Prezelj +3 more
wiley +1 more source

