Results 131 to 140 of about 44,119 (311)
The loss of the urea cycle and ornithine metabolism in different insect orders: An omics approach
Insect Molecular Biology, EarlyView.Among urea cycle enzymes, only the nitric oxide synthase gene is universally present across insect genomes. All Hemiptera species lack the enzymes needed to convert citrulline to arginine, and some also lack the pathway from arginine to ornithine. Putrescine and spermidine synthesis is conserved in all insects, but aphids lack the capability to produce
Jessica Cristina Silva Martins +7 more
wiley +1 more source
Gomphus Fraternus (Odonata: Gomphidae) A New Missouri State Record [PDF]
, 2018 A male Gomphus fraternus (Say) (Odonata: Gomphidae) was vouchered from the Meramec River at Castlewood State Park, St. Louis, County, Missouri on 7 June 2005. The collection of this specimen is a new state record for Missouri and represents a significant
Walker, Jane C
core +3 more sources
The development of sexual differences in body size in Odonata in relation to mating systems
European Journal of Entomology, 2007 Adult body size is the result of important environmental, maternal and/or genetic effects acting on animals during development. Here we investigate how sexual size dimorphism (SSD) develops in seven species of Odonata: Anax imperator, Cordulegaster ...
Martin-Alejandro SERRANO-MENESES +3 more
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract The tidal freshwater zone is an aquatic transition zone that links a river to its estuary and provides an important habitat used in the life cycle of resident and migratory fishes. Yet, information on the trophic structure of fishes in this habitat is scarce. To address this gap, we characterize the trophic structure of a fish community in the
Emma E. Bowser +3 more
wiley +1 more source
THE ODONATA OF THE PRAIRIE PROVINCES OF CANADA. [PDF]
The Canadian Entomologist, 1912 n ...
openaire +3 more sources
Journal of Zoology, EarlyView.Different defensive strategies are used by tadpoles to avoid or escape from predators, and it is possible that differences in the microhabitat of prey and predators influence the defensive strategies used by tadpoles. Therefore, we experimentally tested whether the presence of a nektonic fish predator (Oreochromis niloticus) reduces the time of ...
Y. C. M. de Souza +3 more
wiley +1 more source
European Journal of Entomology, 2005 Mating success is linked to reproductive success in males, but parameters influencing it are poorly known. The relationships between lifetime mating success (LMS), fluctuating asymmetry (FA), body size (SIZE), reproductive period (RP) and emergence date (
Gianmaria CARCHINI +4 more
doaj +1 more source
Landscape-scale terrestrial factors are also vital in shaping Odonata assemblages of watercourses
Scientific Reports, 2019 Habitat loss and fragmentation causes a decline in insect populations. Odonata (both dragonflies and damselflies) are especially threatened by the destruction of both aquatic and terrestrial environment.
H. Nagy +5 more
semanticscholar +1 more source
Assessing predation pressure of Vespa velutina on local fauna through DNA metabarcoding
Journal of Zoology, EarlyView.This study investigates the predation pressure exerted by the invasive yellow‐legged hornet (Vespa velutina) on native insect populations in Mallorca, using DNA metabarcoding to analyze their diet. Results reveal a diverse prey spectrum, including key insect groups such as Apidae (bees), Calliphoridae (blowflies), and Vespidae (wasps), with no ...
C. Herrera +2 more
wiley +1 more source