Results 211 to 220 of about 17,379 (258)

Projected Distribution Shifts of Resident Monarch Butterflies and Consequences for Migratory Monarchs

Journal for Nature Conservation
Iman Momeni-Dehaghi, Lenore Fahrig, Joseph R. Bennett, Trina Rytwinski, Karen S. Oberhauser, Nancy A. Sheehan, Greg W. Mitchell   +6 more
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From enemies to allies : transforming the relationship with local communities in the management of protected areas : the uncertain case of the Monarch Butterfly Biosphere Reserve

, 2004
Félix-Antoine Joli-Coeur
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Monarch butterfly optimization

Neural Computing and Applications, 2015
In nature, the eastern North American monarch population is known for its southward migration during the late summer/autumn from the northern USA and southern Canada to Mexico, covering thousands of miles. By simplifying and idealizing the migration of monarch butterflies, a new kind of nature-inspired metaheuristic algorithm, called monarch butterfly ...
Gai-Ge Wang, Suash Deb, Zhihua Cui
exaly   +2 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 ...
Yakubu, Abdul-Aziz, Sáenz, Roberto, Stein, Julie, Jones, Laura E.   +3 more
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Monarch Butterfly Conservation (Mexico)

2022
One of the most spectacular biological spectacles on the North American continent must be the annual migration of monarch butterflies. For eight months out of the year, beginning each spring, the winged wanderers spread out over two million square miles, from Minnesota to Maine, Manitoba to Mississippi, as generations lay eggs on milkweeds as they move
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Inbreeding depression in monarch butterflies

Journal of Insect Conservation, 2016
Monarch butterflies and their unique system of multigenerational migration have long fascinated the public, and concerns for the fate of this charismatic insect have grown due to the consistent declines in overwintering colony size over the last 20 years.
Andrew J. Mongue, Michelle V. Tsai, Marta L. Wayne, Jacobus C. de Roode   +3 more
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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.
W S, Herman, J F, Barker
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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 ...
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Harmony-based monarch butterfly optimization algorithm

2015 IEEE International Conference on Control System, Computing and Engineering (ICCSCE), 2015
Monarch butterfly optimization (MBO) is a new metaheuristic algorithm mimics the migration of butterflies from northern USA to Mexico. In MBO, there are mainly two processes. In the first process, the algorithm emulates how some of the butterflies move from the current position to the new position by the migration operator.
Mohamed Ghetas, Chan Huah Yong, Putra Sumari   +2 more
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Monarch Butterfly Optimization

2021
Liwen Xie, Gai-Ge Wang
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