Results 51 to 60 of about 6,766 (187)

Genome-wide analysis of ionotropic receptors provides insight into their evolution in Heliconius butterflies. [PDF]

open access: yes, 2016
BACKGROUND: In a world of chemical cues, smell and taste are essential senses for survival. Here we focused on Heliconius, a diverse group of butterflies that exhibit variation in pre- and post-zygotic isolation and chemically-mediated behaviors across ...
Briscoe, Adriana D   +3 more
core   +4 more sources

Hearing in Caterpillars of the Monarch Butterfly (Danaus plexippus)

open access: yesJournal of Experimental Biology, 2019
Many species of caterpillars have been reported to respond to sound, but there has been limited formal study of what sounds they hear, how they hear them, and how they respond to them. Here we report on hearing in caterpillars of the Monarch butterfly (Danaus plexippus).
Chantel J. Taylor, Jayne E. Yack
openaire   +2 more sources

Effects on Fitness and Behavior of Monarch Butterfly Larvae Exposed to a Combination of Cry1Ab-Expressing Corn Anthers and Pollen [PDF]

open access: yes, 2005
Anthers and pollen from corn, Zea mays L., expressing Bacillus thuringiensis (Bt)-derived protein frequently fall onto common milkweed, Asclepias syriaca L., growing in and near corn fields. Previous studies have shown that, alone, Bt anthers do not pose
Anderson, Patricia   +4 more
core   +3 more sources

Density dependence and habitat selection affect overwintering abundance of monarch butterflies at regional and site scales in California

open access: yesConservation Science and Practice, EarlyView.
We analyzed annual overwintering counts in California to understand monarch population fluctuations. Climate and density‐dependent factors explain 64% of annual variability across groves, with density dependence being the primary driver. Within groves, tree characteristics and microclimate significantly influence monarch habitat selection, with ...
Peter C. Ibsen   +4 more
wiley   +1 more source

Os lepidópteros dos Açores nas colecções do Museu Carlos Machado [PDF]

open access: yes, 2002
Nas colecções de História Natural do Museu Carlos Machado (MCM) em Ponta Delgada, Ilha de São Miguel, estão presentes 190 espécimes de Lepidópteros dos Açores, pertencentes a 38 espécies (13 Rhopalocera e 25 Heterocera).
Constância, João P., Vieira, Virgílio
core  

Specialized ommatidia of the polarization-sensitive dorsal rim area in the eye of monarch butterflies have non-functional reflecting tapeta [PDF]

open access: yes, 2009
Many insects exploit sky light polarization for navigation or cruising-course control. The detection of polarized sky light is mediated by the ommatidia of a small specialized part of the compound eye: the dorsal rim area (DRA).
Thomas Labhart   +2 more
core   +2 more sources

Her Majesty’s Desert Throne: The Ecology of Queen Butterfly Oviposition on Mojave Milkweed Host Plants

open access: yesInsects, 2020
Butterfly–host plant relationships can inform our understanding of ecological and trophic interactions that contribute to ecosystem function, resiliency, and services.
Steven M. Grodsky   +3 more
doaj   +1 more source

Conservation implications of shifting habitat use in migrating insects: Selection patterns in a threatened damselfly show that season‐specific actions are needed

open access: yesInsect Conservation and Diversity, EarlyView.
Well‐preserved heathlands of NW Italy are the main overwintering habitat of Sympecma paedisca, while grassy margins in farmland are used only in summer and are avoided from autumn onwards. Grassy margins in farmland act as corridors during the species' migrations between its breeding (ricefields) and overwintering (lowland heathlands) grounds ...
Leonardo Siddi   +3 more
wiley   +1 more source

The occurrence of the Monarch butterfly, Danaus plexippus L. in the Azores, with a brief review of its biology. [PDF]

open access: yes, 2001
The Monarch butterfly, Danaus plexippus L. (Lepidoptera, Nymphalidae), has been an occasional visitor to the Azores. However, during the last two decades it has become a resident species in these islands and has adapted its behaviour to the geographic ...
Borges, Paulo A. V.   +5 more
core  

Mycorrhizal abundance affects the expression of plant resistance traits and herbivore performance [PDF]

open access: yes, 2013
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98805/1/jec12111 ...
Heijden, Marcel   +2 more
core   +1 more source

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