Results 51 to 60 of about 64,390 (168)

Efecto de la temperatura en la sobrevivencia embrionaria del puye Galaxias maculatus (Jenyns, 1842)

Latin American Journal of Aquatic Research, 2013
Se evaluó el efecto de seis temperaturas constantes en la sobrevivencia embrionaria, periodo embrionario y periodo de eclosión de Galaxias maculatus de 7 a 22°C, en condiciones de laboratorio. Los resultados de la sobrevivencia embrionaria fueron: 90,6 ±
Juan Bariles, Eriko Carreño, Manuel Escudero, Ariel Bello   +3 more
doaj  

Post‐eclosion temperature effects on insect cuticular hydrocarbon profiles

Ecology and Evolution, 2021
The insect cuticle is the interface between internal homeostasis and the often harsh external environment. Cuticular hydrocarbons (CHCs) are key constituents of this hard cuticle and are associated with a variety of functions including stress response ...
Subhash Rajpurohit, Vladimír Vrkoslav, Robert Hanus, Allen G. Gibbs, Josef Cvačka, Paul S Schmidt   +5 more
doaj   +1 more source

The Parasitoid Wasp Glyptapanteles porthetriae Induces a Photoperiod‐Dependent Diapause‐Like State in Its Potential Overwintering Host Lasiocampa quercus

Entomologia Experimentalis et Applicata, EarlyView.
We evaluated Lasiocampa quercus as an overwintering host for the koinobiont larval endoparasitoid Glyptapanteles porthetriae by exposing parasitized larvae to different environmental conditions and comparing parasitoid development with that in the primary host Lymantria dispar.
Thomas Zankl, Christa Schafellner
wiley   +1 more source

Tasa de eclosión de Podocnemis unifilis ´tortuga taricaya´ en la Reserva Nacional Pacaya Samiria en el periodo 2014-2021 [PDF]

, 2023
Universidad Nacional Agraria La Molina. Facultad de Ciencias Forestales. Departamento Académico de Manejo ForestalEl estudio consistió en comparar la tasa de eclosión de la especie “taricaya” Podocnemis unifilis entre las tres cuencas principales de la ...
Arciniega García, Kyara Milagros
core  

Performance of Leptopilina japonica Novković and Kimura (Hymenoptera: Figitidae) Under Fluctuating Temperature and Humidity

Entomologia Experimentalis et Applicata, EarlyView.
Temperature is an important factor to determine the activity of insects. We tested the performance of the non‐native larval parasitoid Leptopilina japonica (Hymenoptera: Figitidae) under realistic climatic conditions to improve understanding about its ongoing spread and seasonal abundance.
Jakob Martin, Juliet Daniela Aranibar Luna, Annette Herz   +2 more
wiley   +1 more source

Duración y éxito de eclosión en diferentes tamaños de nidadas de Crocodylus moreletii (Crocodylia: Crocodilidae)

, 2018
Background. The Crocodylia begin their life by overcoming the incubation stage with group hatching. Incubation temperature is important for the development of the embryos and the duration of the hatching process, during which they emit sounds. Goals. The
A. Vliet, Kent, Mandujano-Camacho, Hernán, Hénaut, Yann, B. Cocroft, Reginald   +3 more
core   +1 more source

Reproducción inducida y producción de alevinos de Sabaleta Brycon henni: determinación del tiempo de latencia utilizando extracto de hipófisis de carpa Reprodução induzida e produção de alevinos da Sabaleta Brycon henni: determinação do tempo de latência utilizando Extrato de Hipófise de Carpa Induced breeding and production of fingerlings of Sabaleta Brycon henni: Determining the time of latency using Carp Pituitary Extract

Revista Colombiana de Ciencias Pecuarias, 2009
Esta investigación fue realizada en la estación piscícola de San José del Nus (Antioquia). Fue iniciada en el año 2002 con la captura y adaptación de un lote de 100 reproductores silvestres, provenientes de tres microcuencas cercanas a la estación ...
Gustavo A Lenis, Luis F Restrepo, Juan C Rivera J, Fabián Monsalve, Pablo E Cruz-Casallas   +4 more
doaj  

Transcriptional responses of Aedes aegypti chemosensory tissues in response to volatile DEET and citronella oil

Insect Molecular Biology, EarlyView.
Aedes aegypti females were significantly repelled by both volatile DEET and citronella oil in comparison to control (ethanol‐exposed) mosquitoes. Global gene expression changes were largest in the mosquito mouthparts, with notable downregulation of the three subunits comprising the mosquito CO2 receptor (Gr1, 2 and 3).
Ivan Drahun, Jessica M. Sparrow, Cody W. Koloski, Bryan J. Cassone   +3 more
wiley   +1 more source

Desarrollo embrionario y posembrionario en líneas white leghorn seleccionadas para eclosión lenta y rápida

, 1978
El presente estudio se realizó utilizando líneas de aves de la raza White Leghom seleccionadas para eclosión, lenta y rápida, después de 11 generaciones esta diferencia es de 4a hs como resultado de la selección.
Vásquez Peláez, Carlos G., Bohren, B.B.   +1 more
core   +1 more source

Developmental stage ordering yields greater cranial mineralization sequence resolution than embryo size or days since oviposition: A case study using the gekkotan Eublepharis macularius (Blyth, 1854)

Journal of Anatomy, EarlyView.
We employ a set of leopard gecko embryos for which size, day of development, and developmental stage are known to assess which timetable accords with the greatest resolution of cranial mineralization events. Developmental staging yielded the best outcome. Abstract Mineralization sequences of cranial elements (often referred to as ossification sequences)
Patrick A. D. Wise, Aaron H. Griffing, Anthony P. Russell   +2 more
wiley   +1 more source