Use of Spotted Knapweed/Star Thistle (Asterales: Asteraceae) as the Primary Source of Nectar by Early Migrating Monarch Butterflies (Lepidoptera: Nymphalidae) from Beaver Island, Michigan [PDF]
Recent observations over the past decade suggest that the invasive star thistle (aka spotted knapweed (Centaurea stoebe L.) provides much of the nectar that supports monarch butterflies (Danaus plexippus) in their pre-migratory and early migratory flight
Douglas, Matthew M
core +2 more sources
Background The monarch butterfly (Danaus plexippus) is a conspicuous insect that has experienced a drastic population decline over the past two decades.
Matthew Z. Brym +5 more
doaj +1 more source
Notes on Shifting Distribution Patterns and Survival of Immature \u3ci\u3eDanaus Plexippus\u3c/i\u3e (Lepidoptera: Danaidae) on the Food Plant \u3ci\u3eAsclepias Syriaca\u3c/i\u3e [PDF]
Abundance and distribution of immature stages of the monarch butterfly, Danaus plexippus, on the food plant Asclepias syriaca were examined at a site in southeastern Wisconsin over one growing season.
Borkin, Susan Sullivan
core +2 more sources
Estimating Milkweed Abundance in Metropolitan Areas Under Existing and User-Defined Scenarios
Metropolitan areas play an undetermined role in supporting migratory monarch butterfly (Danaus plexippus) populations despite providing habitat areas rich with milkweed (Asclepias spp.), the obligate host plants for monarch larvae.
Mark K. Johnston +8 more
doaj +1 more source
Fueling the fall migration of the monarch butterfly [PDF]
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 +3 more sources
The monarch butterfly in North America has suffered a serious population decline since the mid-1990s. The introduction and widespread use of neonicotinoid insecticides during the same time period has been suggested as a potential driver of this decline ...
David G. James
doaj +1 more source
Viceroy butterfly Limenitis archippus (Cramer) (Lepidoptera: Nymphalidae: Limenitidinae)
EENY-458, a 5-page illustrated fact sheet by Andrei Sourakov, is part of the Featured Creatures collection. It describes this black butterfly with white vertical stripes, which is similar to, but smaller than, the monarch butterfly — its synonymy ...
Andrei Sourakov
doaj +5 more sources
Assessing Role of Major Drivers in Recent Decline of Monarch Butterfly Population in North America
Monarch (Danaus plexippus L.) is a long distance migratory species of butterfly in North America that has experienced population declines in recent years. Several interacting factors have been postulated to contribute to this decline.
Joseph Belsky, Neelendra K. Joshi
doaj +1 more source
Ranz et al. present a high-quality genome assembly for the monarch butterfly Danaus plexippus and a comprehensive set of RNA sequencing data across different tissues and life stages.
José M. Ranz +10 more
doaj +1 more source
Effects of Cry1Ab-Expressing Corn Anthers on Monarch Butterfly Larvae [PDF]
Previous studies suggest that exposure to corn, Zea mays L., anthers expressing Bacillus thuringiensis (Bt)-derived protein may have adverse effects on the larvae of monarch butterfly, Danaus plexippus (L.). To examine the potential effects of Bt anthers
Anderson, Patricia +5 more
core +3 more sources

