Results 31 to 40 of about 165,276 (350)

DISTRIBUTION AND DIVERSITY OF BUTTERFLIES (Lepidoptera: Rhopalocera) IN CAMPUS AREA INDRALAYA SRIWIJAYA UNIVERSITY OF SOUTH SUMATRA

open access: yesBiovalentia: Biological Research Journal, 2016
Research on Diversity and distribution of butterflies, was held at the Campus Indralaya Sriwijaya University of South Sumatra. The purpose of this study was to obtain information species diversity of butterflies at the Sriwijaya University of Inderalaya ...
Syafrina Lamin   +2 more
doaj   +1 more source

Fine-Grained Butterfly Classification in Ecological Images Using Squeeze-And-Excitation and Spatial Attention Modules

open access: yesApplied Sciences, 2020
Most butterfly larvae are agricultural pests and forest pests, but butterflies have important ornamental value and the ability to sense and respond to changes in the ecological environment.
Dongjun Xin, Yen-Wei Chen, Jianjun Li
doaj   +1 more source

Causal Analysis of a Migration of the Snout Butterfly, Libytheana bachmanii Iarvata (Strecker) (Libytheidae) [PDF]

open access: yes, 1983
Observation of a massive migration of the snout butterfly, Libytheana bachmanii larvata (Strecker), in central Texas in 1971 is described. An association of peak migration periods and periodic precipitation episodes is believed to be causal in nature ...
Neck, Raymond W.
core   +1 more source

Integrating morphisms of Lie 2-algebras

open access: yes, 2010
We show how to integrate a weak morphism of Lie algebra crossed-modules to a weak morphism of Lie 2-groups. To do so we develop a theory of butterflies for 2-term L_infty algebras.
Baez   +4 more
core   +1 more source

Puddling by Female Florida Tiger Swallowtail Butterflies, \u3ci\u3ePapillo Glaucus Australis\u3c/i\u3e (Lepidoptera: Papilionidae) [PDF]

open access: yes, 2017
(excerpt) Many species from all families of Rhopaloccra have been reported to drink water (Norris 1936). Bates (1863) noted that, in the Amazon, 80 species from 22 genera flocked about the damp edges of water and, with very few exceptions, all of these ...
Scriber, J. Mark
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

Rainfall but not selective logging affect changes in abundance of tropical forest butterfly in Sabah, Borneo [PDF]

open access: yes, 2003
We investigated the effects of rainfall on the distribution and abundance of the satyrine butterfly Ragadia makuta in selectively logged and unlogged forest on Borneo. In 1997-98, there was a severe El Nino-Southern Oscillation (ENSO) drought, and annual
Chey, V K   +4 more
core   +1 more source

On the distribution and status of Carcharodus lavatherae, Pyrgus carthami, and P. serratulae (Lepidoptera: Hesperiidae) in Slovenia

open access: yesNatura Sloveniae, 2007
A detailed survey of the publications and main Slovenian collections showed that only limited information on the distribution of Carcharodus lavatherae, Pyrgus carthami, and Pyrgus serratulae is available. Within the framework of the Slovenian butterfly
Rudi Verovnik
doaj   +1 more source

Dissections of Larval, Pupal and Adult Butterfly Brains for Immunostaining and Molecular Analysis

open access: yesMethods and Protocols, 2021
Butterflies possess impressive cognitive abilities, and investigations into the neural mechanisms underlying these abilities are increasingly being conducted.
Yi Peng Toh   +2 more
doaj   +1 more source

Structure Formation in Butterfly Scales: Interplay of Genetic Control, Mechanical Instabilities, and Dynamic Material Properties

open access: yesAdvanced Functional Materials, EarlyView.
Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash   +10 more
wiley   +1 more source

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