Results 251 to 260 of about 99,754 (297)

Monarch Butterfly Migration as an Integrative Model of Complex Trait Evolution*

American Naturalist, 2021
Understanding the genetic architecture of complex trait adaptation in natural populations requires the continued development of tractable models that explicitly confront organismal and environmental complexity.
D. A. Green
semanticscholar   +1 more source

Effect of mating on Monarch butterfly oogenesis

Experientia, 1977
Oogenesis ceases in virgin Monarch butterflies at about 10 days posteclosion, but an enhanced production of mature oocytes occurs after mating. Juvenile hormone injections into virgins, and allatectomies of mated females, indicate that the observed fluctuations in oogenesis are due to periods of corpora allata activity and inactivity.
J. F. Barker, W. S. Herman
openaire   +3 more sources

Tracking climate impacts on the migratory monarch butterfly [PDF]

Global Change Biology, 2012
AbstractUnderstanding the impacts of climate on migratory species is complicated by the fact that these species travel through several climates that may be changing in diverse ways throughout their complete migratory cycle. Most studies are not designed to tease out the direct and indirect effects of climate at various stages along the migration route.
Elise F. Zipkin, Elise F. Zipkin, Rick Reeves, Leslie Ries, James Regetz, Karen S. Oberhauser   +5 more
openaire   +3 more sources

Monarch butterfly spatially discrete advection model

Mathematical Biosciences, 2004
We study the population cycles of the Monarch butterfly using one of the simplest systems incorporating both migration and local dynamics. The annual migration of the Monarch involves four generations. Members of Generations 1-3 (occasionally 4) migrate from the over-wintering site in Central Mexico to breeding grounds that extend as far north as the ...
Abdul-Aziz Yakubu, Julie Stein, Laura E. Jones, Roberto A. Saenz   +3 more
openaire   +3 more sources

An effective discrete monarch butterfly optimization algorithm for distributed blocking flow shop scheduling with an assembly machine

Expert systems with applications, 2023
Songling Du, Wenju Zhou, Dakui Wu, M. Fei   +3 more
semanticscholar   +1 more source

Transmission congestion management through sensitivity based rescheduling of generators using improved monarch butterfly optimization

International Journal of Electrical Power & Energy Systems, 2023
Vikram Singh, M. Fozdar, H. Malik, F. G. García Márquez   +3 more
semanticscholar   +1 more source

The monarch butterfly's sperm wars

New Scientist, 2009
The male butterfly's penis seems to work like an oil dipstick to judge how much enemy sperm the female has in ...
openaire   +2 more sources

Illuminating the Circadian Clock in Monarch Butterfly Migration

Science, 2003
Migratory monarch butterflies use a time-compensated Sun compass to navigate to their overwintering grounds in Mexico. Here, we report that constant light, which disrupts circadian clock function at both the behavioral and molecular levels in monarchs, also disrupts the time-compensated component of flight navigation.
Froy, Oren, Gotter, Anthony L., Casselman, Amy L., Reppert, Steven M.   +3 more
openaire   +4 more sources

Architecture evolution of convolutional neural network using monarch butterfly optimization

Journal of Ambient Intelligence and Humanized Computing, 2022
Yong Wang, Xiaobin Qiao, Gai-ge Wang
semanticscholar   +1 more source

Feature selection using binary monarch butterfly optimization

Applied intelligence (Boston), 2022
Lin Sun, Shanshan Si, Jing Zhao, Jiucheng Xu, Yaojin Lin, Zhiying Lv   +5 more
semanticscholar   +1 more source