Results 101 to 110 of about 17,997 (226)

Local habitat, not landscape diversity, drives richness and reproduction of cavity‐nesting bees and wasps in agricultural landscapes

Insect Conservation and Diversity, EarlyView.
Local habitat type and hedgerow cover strongly shape bee and wasp richness, but only weakly their reproductive output, outweighing the landscape diversity effects at the 1‐km2 scale. Forests host more wasp but fewer bee species, whereas orchards support high richness of both; bee reproduction patterns are driven by one dominant species, while wasp ...
Sara Tassoni, Marit Kinga Kasten, Thomas Hiller, Michael Staab, Frank M. Schurr, Ingo Grass   +5 more
wiley   +1 more source

The dilp2/5 genes control diapause inducibility [PDF]

, 2015
Many holometabolous insects hibernate by triggering diapause, an “actively-induced” dormancy that blocks developmental functions. Yet, the nature of signals enhancing the plasticity of developmental system and underlying diapause inducibility is still ...
Schiesari, Luca
core  

Mating precedes selective immune priming which is maintained throughout bumblebee queen diapause

BMC Genomics, 2019
Background Understanding the mechanisms by which organisms adapt to unfavourable conditions is a fundamental question in ecology and evolutionary biology.
Thomas J. Colgan, Sive Finlay, Mark J. F. Brown, James C. Carolan   +3 more
doaj   +1 more source

Ecophysiological consequences of variability in diapause intensity

European Journal of Entomology, 2002
Diapause intensity (DI) is a physiological trait represented by the duration of diapause under given conditions of environment. In many species, it is highly variable, probably being controlled by multiple genes and tends to form a cline in response to ...
Sinzo MASAKI
doaj   +1 more source

From biology to biotechnology: Host‐regulation factors from parasitoid wasps are a source of bioactive molecules with translational potential

Insect Molecular Biology, EarlyView.
Parasitoid wasps deploy maternal and embryonic factors to reprogramme host physiology. Venom, calyx fluid, polydnaviruses, teratocytes and larval secretions act in a coordinated, compartmentalised manner. Host‐regulation factors are promising sources of insecticidal, antimicrobial and bioinspired translational molecules.
Ciro Pedro G. Pinto, Andrew A. Walker, Glenn F. King   +2 more
wiley   +1 more source

Overwintering Strategies and Post-Diapause Female Reproduction Fitness in the Willow Leaf Beetle Plagiodera versicolora (Coleoptera: Chrysomelidae)

Insects
Diapause, a survival strategy utilized by many insects under severe environmental conditions, can generate costs that potentially affect post-diapause development and reproduction.
Jian Yan, Lin Zhang, Mingxuan Xu, Xiaofeng Zhang, Lvquan Zhao   +4 more
doaj   +1 more source

Effects of Early Season Temperature on Adult Life History Traits of Wheat Stem Sawfly, Cephus cinctus (Hymenoptera: Cephidae) and Bracon cephi (Hymenoptera: Braconidae)

Journal of Applied Entomology, EarlyView.
ABSTRACT Wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), is a long‐standing and serious pest of wheat, Triticum aestivum Linnaeus (Poaceae), in the northern Great Plains region of North America. Over the last decade, research efforts have aimed to better understand C.
Dylan M. Sjolie, Christian J. Willenborg, Meghan A. Vankosky   +2 more
wiley   +1 more source

Is diapause an ancient adaptation in Drosophila? [PDF]

D. melanogaster enters a state of reproductive arrest when exposed to low temperatures (12 °C) and shorter photoperiods. A number of studies have suggested that diapause has recently evolved in European D. melanogaster populations, that it is not present
Collins, L, Pegoraro, M, Tauber, E, Zonato, V, Kyriacou, CP   +4 more
core   +1 more source

Evolutionary significance of embryonic diapause in turtles

, 2004
I tested the hypothesis that embryonic diapause is an adaptation for turtles experiencing extreme seasonal variation in climatic conditions, using the new world family Kinosternidae.
Cameron, Melissa Andrea
core   +1 more source

Embryonic and larval development of the endangered Chiapas killifish Tlaloc hildebrandi (Cyprinodontiformes: Profundulidae)

Journal of Fish Biology, EarlyView.
Abstract The early ontogeny of endemic freshwater fishes provides essential baseline biological information for conservation and management, particularly in species with restricted distributions and high vulnerability to habitat degradation, environmental change and population decline. This study presents the first detailed description of embryonic and
Rubén Alonso Contreras‐Tapia, Gabriela Garza‐Mouriño, María Elena Castellanos‐Páez, Marcela Ivonne Benítez‐Díaz Mirón, Jairo Arroyave, Alfonso Ángel González‐Díaz, Wilfredo A. Matamoros   +6 more
wiley   +1 more source