Results 81 to 90 of about 35,020 (248)

High-throughput profiling of diapause regulated genes from Trichogramma dendrolimi (Hymenoptera: Trichogrammatidae)

BMC Genomics, 2020
Background The parasitoid wasp, Trichogramma dendrolimi, can enter diapause at the prepupal stage. Thus, diapause is an efficient preservation method during the mass production of T. dendrolimi.
Xue Zhang, Wenmei Du, Junjie Zhang, Zhen Zou, Changchun Ruan   +4 more
doaj   +1 more source

Endocrine Mechanisms Regulating Post-Diapause Development in the Cabbage Armyworm, Mamestra brassicae. [PDF]

PLoS ONE, 2016
Diapause, a programmed developmental arrest at a specific stage, is common in insects and is regulated by hormones. It is well established that in pupal diapause, cessation of ecdysteroid secretion from the prothoracic glands (PGs) after pupal ecdysis ...
Nobuto Yamada, Naoki Okamoto, Hiroshi Kataoka, Akira Mizoguchi   +3 more
doaj   +1 more source

Development, Survival and Phenology of the Sweetclover Weevil Parasitoid, \u3ci\u3ePygostolus Falcatus\u3c/i\u3e (Hymenoptera: Braconidae) [PDF]

, 2018
Biennial sweetclovers were widely used for soil improvement and as for- ages in the first half of the 1900s. The introduction of the sweetclover weevil, Sitona cylindricollis, caused a drastic decline in sweetclover acreage.
Milbrath, Lindsey R, Weiss, Michael J
core   +2 more sources

Photoperiodic Response of Abrostola asclepiadis (Lepidoptera: Noctuidae), a Candidate Biological Control Agent for Swallow-worts (Vincetoxicum, Apocynaceae) [PDF]

, 2020
A biological control program is in development for two swallow-wort species (Vincetoxicum, Apocynaceae), European vines introduced into northeastern North America.
Biazzo, Jeromy, Dolgovskaya, Margarita, Milbrath, Lindsey R., Sforza, René F.H., Volkovitsh, Mark   +4 more
core   +2 more sources

Effects of Engineered Dam Releases on Benthic Assemblages During Drought and Comparison With Unregulated Reaches

River Research and Applications, EarlyView.
ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist, Jutta Schmidt‐Gengenbach   +1 more
wiley   +1 more source

Molecular mechanisms and comparative transcriptomics of diapause in two corn rootworm species (Diabrotica spp.)

Current Research in Insect Science
Diapause is a programmed developmental arrest that can occur at any developmental stage depending on species, but the mechanisms that underscore embryonic diapause are poorly understood.
Melise C. Lecheta, Chad Nielson, B. Wade French, Emily A.W. Nadeau, Nicholas M. Teets   +4 more
doaj   +1 more source

Synchronisation of egg hatching of brown hairstreak (Thecla betulae) and budburst of blackthorn (Prunus spinosa) in a warmer future [PDF]

, 2010
Synchronisation of the phenology of insect herbivores and their larval food plant is essential for the herbivores’ fitness. The monophagous brown hairstreak (Thecla betulae) lays its eggs during summer, hibernates as an egg, and hatches in April or May ...
A Koschuh, A. Winterink, ASJ Buse, C Both, C Stefanescu, CAM Swaay Van, F Bink, F Bink, F Bos, F Fartmann, FE Wielgolaski, G. de Graaf, H Dudler, H. H. de Vries, HG Andrewartha, JA Fordyce, JH Myers, JM Scriber, KM Clancy, L. Teunissen, L. Vogelaar, LA Schroeder, M Asch Van, M Asch Van, M. E. Visser, ME Visser, MJ Raupp, MJ Tauber, PD Coley, R Harrington, R. van der Velde, RC Dewar, RE Forkner, RR Sokal, S Dongen Van, S. H. Ens, SR Loarie, T Klemola, T Merckx   +38 more
core   +2 more sources

Assessing physiological, behavioral and movement responses to Suprelorin implant delivery methods in free‐ranging eastern grey kangaroos Macropus giganteus

Wildlife Biology, EarlyView.
Overabundant populations of eastern grey kangaroos Macropus giganteus in peri‐urban areas pose ecological and social challenges. Current management strategies are often hindered by animal welfare and logistical concerns. This study aimed to assess stress responses of kangaroos to two contraceptive delivery methods.
Fabiola R. O. Silva, Sebastien Comte, Tamara Keeley, Maquel Brandimarti, Catherine A. Herbert   +4 more
wiley   +1 more source

Bigger isn't always better: Challenging assumptions about the associations between diapause, body weight, and overwintering survival

Ecology and Evolution
During the winter, animals face limited food availability. Many animals enter dormancy to reduce their winter energy expenditure. Most insects spend the winter in diapause, a state of programmed dormancy.
Clancy A. Short, Jared L. Walters, Daniel A. Hahn   +2 more
doaj   +1 more source

Pollinator diversity and host specificity in threatened Encephalartos cycads and their implications for co‐extinction and species recovery

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The highly threatened African cycad genus Encephalartos faces severe threats such as habitat loss and poaching. In addition, the lack of sexual recruitment due to the absence of pollinators (pollinator collapse) has emerged as another major threat.
Paul D. Janse van Rensburg, Terence N. Suinyuy, John S. Donaldson   +2 more
wiley   +1 more source