Results 1 to 10 of about 69,456 (214)

Monarch Butterfly, Danaus plexippus Linnaeus (Lepidoptera: Nymphalidae: Danainae)

open access: yesEDIS, 2009
EENY-442, a 9-page illustrated fact sheet by Andrei Sourakov, is part of the Featured Creatures collection. It describes this well-known migrating butterfly with charismatic appearance, their distribution, description, biology and life cycle, hosts and ...
Andrei Sourakov
doaj   +6 more sources

Monarch butterfly conservation through male germplasm cryopreservation [PDF]

open access: yesScientific Reports
Monarch butterfly (Danaus plexippus L.) populations have declined in North America. The International Union for Conservation of Nature (IUCN) recently classified the species as endangered, sparking public concern and conservation efforts. Our approach to
Courtney C. Grula   +2 more
doaj   +2 more sources

Aphid infestations reduce monarch butterfly colonization, herbivory, and growth on ornamental milkweed. [PDF]

open access: yesPLoS ONE, 2023
Anthropogenic disturbance is driving global biodiversity loss, including the monarch butterfly (Danaus plexippus), a dietary specialist of milkweed. In response, ornamental milkweed plantings are increasingly common in urbanized landscapes, and recent ...
Bernadette M Mach   +3 more
doaj   +2 more sources

Cloudlet Scheduling by Hybridized Monarch Butterfly Optimization Algorithm

open access: yesJournal of Sensor and Actuator Networks, 2019
Cloud computing technology enables efficient utilization of available physical resources through the virtualization where different clients share the same underlying physical hardware infrastructure. By utilizing the cloud computing concept, distributed,
Ivana Strumberger   +2 more
exaly   +3 more sources

A Novel Monarch Butterfly Optimization with Global Position Updating Operator for Large-Scale 0-1 Knapsack Problems

open access: yesMathematics, 2019
As a significant subset of the family of discrete optimization problems, the 0-1 knapsack problem (0-1 KP) has received considerable attention among the relevant researchers.
Gai-Ge Wang, Yanhong Feng, Xu Yu
exaly   +3 more sources

Characterizing New Wintering Sites for Monarch Butterfly Colonies in Sierra Nevada, Mexico [PDF]

open access: yesInsects, 2020
Every year, Danaus plexippus (Linnaeus, 1758) travels to hibernate in oyamel fir forests located between the limits of the states of Michoacán and Mexico in Mexico.
Ramiro Pérez-Miranda   +2 more
doaj   +2 more sources

An improved monarch butterfly spectrum allocation algorithm for multi-source data stream in complex electromagnetic environment

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
In the era of the Internet of Everything, various wireless devices and sensors use spectrum, which is a precious and non-renewable resource, to communication.
Yuchao Liu, Chenggang Cao, Yu Han
doaj   +1 more source

Monarch butterfly population decline in North America: identifying the threatening processes [PDF]

open access: yesRoyal Society Open Science, 2017
The monarch butterfly (Danaus plexippus) population in North America has sharply declined over the last two decades. Despite rising concern over the monarch butterfly's status, no comprehensive study of the factors driving this decline has been conducted.
Wayne E. Thogmartin   +12 more
doaj   +1 more source

History of colonisation and updated distribution of the Monarch butterfly Danaus plexippus (Linnaeus, 1758) and its hostplants in mainland Portugal, Azores and Madeira [PDF]

open access: yesNota Lepidopterologica, 2023
The first observations of the Monarch butterfly (Danaus plexippus) in Iberia date from 1886, although breeding records emerged almost a century later: 1960 in Spain, 1980s–1990s in Madeira and Azores, and 2003 in mainland Portugal.
Luís Palma   +3 more
doaj   +3 more sources

Optimization driven cluster based indexing and matching for the document retrieval

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
Document retrieval methods concentrate on minimizing the time taken for the navigator to recall the entire document while analyzing the concepts, themes, and contents of the document based on their research goals.
Mamta Kayest, Sanjay Kumar Jain
doaj   +1 more source

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