Results 31 to 40 of about 69,456 (214)

Fueling the fall migration of the monarch butterfly [PDF]

open access: yesIntegrative and Comparative Biology, 2006
Monarch butterflies in eastern North America accumulate lipids during their fall migration to central Mexico, and use them as their energy source during a 5 month overwintering period. When and where along their migratory journey the butterflies accumulate these lipids has implications for the importance of fall nectar sources in North America.
Lincoln P, Brower   +2 more
openaire   +2 more sources

Visiting child looks at monarch butterfly poster

open access: yes, 2017
Visiting child looks at monarch butterfly ...
Billings, Brett, USFWS
core   +3 more sources

Evaluating an Alleged Mimic of the Monarch Butterfly: Neophasia (Lepidoptera: Pieridae) Butterflies are Palatable to Avian Predators

open access: yesInsects, 2018
Some taxa have adopted the strategy of mimicry to protect themselves from predation. Butterflies are some of the best representatives used to study mimicry, with the monarch butterfly, Danaus plexippus (Lepidoptera: Nymphalidae) a well-known model.
Dale A. Halbritter   +4 more
doaj   +1 more source

MonarchBase: the monarch butterfly genome database [PDF]

open access: yesNucleic Acids Research, 2012
The monarch butterfly (Danaus plexippus) is emerging as a model organism to study the mechanisms of circadian clocks and animal navigation, and the genetic underpinnings of long-distance migration. The initial assembly of the monarch genome was released in 2011, and the biological interpretation of the genome focused on the butterfly's migration ...
Zhan, Shuai, Reppert, Steven M.
openaire   +3 more sources

Contemporary loss of migration in monarch butterflies [PDF]

open access: yesProceedings of the National Academy of Sciences, 2019
The annual migration of the monarch butterfly Danaus plexippus is in peril. In an effort to aid population recovery, monarch enthusiasts across North America participate in a variety of conservation efforts, including captive rearing and release of monarch butterflies throughout the summer ...
Ayşe Tenger-Trolander   +3 more
openaire   +2 more sources

Monarch Butterfly. [PDF]

open access: yes, 2021
This unit covers the migration of the monarch butterflies from Michoacan, Mexico, to the Northern parts of America. This Monarch Butterfly unit is geared toward WIDA level 3: developing or CEFR B2 English language learners in middle school or high school.
Ferrell, Bermudez J
core  

Size of the Canadian Breeding Population of Monarch Butterflies Is Driven by Factors Acting During Spring Migration and Recolonization

open access: yesFrontiers in Ecology and Evolution, 2019
The eastern North American monarch butterfly population shows a long-term population decline. While it is hypothesized that forest loss on the wintering grounds and milkweed loss throughout the breeding range are responsible for the observed decline ...
Tara L. Crewe   +2 more
doaj   +1 more source

Navigational mechanisms of migrating monarch butterflies [PDF]

open access: yesTrends in Neurosciences, 2010
Recent studies of the iconic fall migration of monarch butterflies have illuminated the mechanisms behind their southward navigation while using a time-compensated sun compass. Skylight cues, such as the sun itself and polarized light, are processed through both eyes and are probably integrated in the brain's central complex, the presumed site of the ...
Reppert, Steven M.   +2 more
openaire   +3 more sources

NorthernWidget-Skunkworks/Project-Monarch: Version 0.1.1: Project Monarch

open access: yes, 2021
<ul> <li>Three years of updates to mechanical elements, documentation (incl. response curves), etc. </li> <li>Rename to Project Monarch (after the butterfly and its solar navigation)</li> </ul ...
Andy Wickert, Bobby Schulz
core   +1 more source

Differential Evolution and Local Search based Monarch Butterfly Optimization Algorithm with Applications

open access: yesInternational Journal of Computational Intelligence Systems, 2018
Global optimization for nonlinear function is a challenging issue. In this paper, an improved monarch butterfly algorithm based on local search and differential evolution is proposed.
Xingyue Cui, Zhe Chen, Fuliang Yin
doaj   +1 more source

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