Results 41 to 50 of about 228,320 (377)

Not only the butterflies: managing ants on road verges to benefit Phengaris (Maculinea) butterflies [PDF]

open access: yes, 2010
Obligate myrmecophilic butterfly species, such as Phengaris (Maculinea) teleius and P. nausithous, have narrow habitat requirements. Living as a caterpillar in the nests of the ant species Myrmica scabrinodis and M.
Gestel, R., van   +3 more
core   +2 more sources

A fishing expedition to discover the pollinators of several subtropical Apocynaceae

open access: yesApplications in Plant Sciences, 2020
Premise Flowers of the Apocynaceae (milkweed family) have complex structures and pollination mechanisms. Pollen removal and deposition in Angadenia, Pentalinon, and Echites are similar, with anthers releasing pollen onto the sterile style head.
Suzanne Koptur   +3 more
doaj   +1 more source

Molecular logic behind the three-way stochastic choices that expand butterfly colour vision. [PDF]

open access: yes, 2016
Butterflies rely extensively on colour vision to adapt to the natural world. Most species express a broad range of colour-sensitive Rhodopsin proteins in three types of ommatidia (unit eyes), which are distributed stochastically across the retina.
Arikawa, Kentaro   +5 more
core   +1 more source

Integrating three comprehensive data sets shows that mitochondrial DNA variation is linked to species traits and paleogeographic events in European butterflies

open access: yesMolecular Ecology Resources, 2019
Understanding the dynamics of biodiversity, including the spatial distribution of genetic diversity, is critical for predicting responses to environmental changes, as well as for effective conservation measures.
L. Dapporto   +13 more
semanticscholar   +1 more source

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]

open access: yes, 2019
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

FLEET: Butterfly Estimation from a Bipartite Graph Stream

open access: yes, 2019
We consider space-efficient single-pass estimation of the number of butterflies, a fundamental bipartite graph motif, from a massive bipartite graph stream where each edge represents a connection between entities in two different partitions. We present a
Bar-Yossef R. Kumar Z.   +10 more
core   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

open access: yesAdvanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda   +11 more
wiley   +1 more source

Environmental and soil gradient effects on biodiversity of butterflies in Khyber Pakhtunkhwa, Pakistan [PDF]

open access: yesArthropods, 2021
The natural territory disturbance, losses, and degradation are real and alarming threats to the ecosystem. The population of butterflies remains arbitrary in prairie residuals and linear range habitats.
Haroon   +2 more
doaj  

Notes on the Life Histories of \u3ci\u3eChlosyne\u3c/i\u3e (Lepidoptera: Nymphalidae) and \u3ci\u3eAgrypon\u3c/i\u3e (Hymenoptera: Ichneumonidae) [PDF]

open access: yes, 2017
Ambrosia trifida is reported for the first time as a larval food plant of Chlosyne nycteis. Chlosyne nycteis and C. harrisii are reported as hosts of Agrypon prismaticum and A.
Williams, Andrew H
core   +2 more sources

Protected areas do not mitigate biodiversity declines: A case study on butterflies

open access: yesDiversity and Distributions: A journal of biological invasions and biodiversity, 2018
To assess the effectiveness of protected areas in preventing biodiversity decline. We first test whether species richness of butterfly assemblages is higher within European Natura 2000 (N2000) sites than in their surroundings.
S. Rada   +6 more
semanticscholar   +1 more source

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