Slender-bodies diurnal insects having large, broad wings often strikingly colored and patterned.
Coloration or discoloration of a part by a pigment.
The use of wings or wing-like appendages to remain aloft and move through the air.
The group of celestial bodies, including the EARTH, orbiting around and gravitationally bound by the sun. It includes eight planets, one minor planet, and 34 natural satellites, more than 1,000 observed comets, and thousands of lesser bodies known as MINOR PLANETS (asteroids) and METEOROIDS. (From Academic American Encyclopedia, 1983)
Periodic movements of animals in response to seasonal changes or reproductive instinct. Hormonal changes are the trigger in at least some animals. Most migrations are made for reasons of climatic change, feeding, or breeding.
Chemical agents or odors that stimulate sexual desires. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A large order of insects comprising the butterflies and moths.
The splitting of an ancestral species into daughter species that coexist in time (King, Dictionary of Genetics, 6th ed). Causal factors may include geographic isolation, HABITAT geometry, migration, REPRODUCTIVE ISOLATION, random GENETIC DRIFT and MUTATION.
A plant genus of the family ASCLEPIADACEAE. This is the true milkweed; APOCYNUM & EUPHORBIA hirta are rarely called milkweed. Asclepias asthmatica has been changed to TYLOPHORA.
The process of laying or shedding fully developed eggs (OVA) from the female body. The term is usually used for certain INSECTS or FISHES with an organ called ovipositor where eggs are stored or deposited before expulsion from the body.
The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.
Sexual activities of animals.
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
The relationships of groups of organisms as reflected by their genetic makeup.
The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.
Changes in biological features that help an organism cope with its ENVIRONMENT. These changes include physiological (ADAPTATION, PHYSIOLOGICAL), phenotypic and genetic changes.
Communication between animals involving the giving off by one individual of some chemical or physical signal, that, on being received by another, influences its behavior.
The detection of RESTRICTION FRAGMENT LENGTH POLYMORPHISMS by selective PCR amplification of restriction fragments derived from genomic DNA followed by electrophoretic analysis of the amplified restriction fragments.
The genetic complement of an insect (INSECTS) as represented in its DNA.
The functional hereditary units of INSECTS.
Insects of the suborder Heterocera of the order LEPIDOPTERA.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
Areas designated for use by the armed forces personnel.
The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.
Proteins found in any species of insect.
The science dealing with the earth and its life, especially the description of land, sea, and air and the distribution of plant and animal life, including humanity and human industries with reference to the mutual relations of these elements. (From Webster, 3d ed)
The variety of all native living organisms and their various forms and interrelationships.
Specialized cells in the invertebrates that detect and transduce light. They are predominantly rhabdomeric with an array of photosensitive microvilli. Illumination depolarizes invertebrate photoreceptors by stimulating Na+ influx across the plasma membrane.
Persistent difficulty discarding or parting with possessions, regardless of the value of these possessions. Epidemiological studies suggest that hoarding occurs in 2-5% of the population and can lead to substantial distress and disability, as well as serious public health consequences.
Warm-blooded VERTEBRATES possessing FEATHERS and belonging to the class Aves.
A form of interactive entertainment in which the player controls electronically generated images that appear on a video display screen. This includes video games played in the home on special machines or home computers, and those played in arcades.
Theoretical construct used in applied mathematics to analyze certain situations in which there is an interplay between parties that may have similar, opposed, or mixed interests. In a typical game, decision-making "players," who each have their own goals, try to gain advantage over the other parties by anticipating each other's decisions; the game is finally resolved as a consequence of the players' decisions.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Paired sense organs connected to the anterior segments of ARTHROPODS that help them navigate through the environment.
Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary.
Type of vision test used to determine COLOR VISION DEFECTS.
The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.
Performing the role of a parent by care-giving, nurturance, and protection of the child by a natural or substitute parent. The parent supports the child by exercising authority and through consistent, empathic, appropriate behavior in response to the child's needs. PARENTING differs from CHILD REARING in that in child rearing the emphasis is on the act of training or bringing up the children and the interaction between the parent and child, while parenting emphasizes the responsibility and qualities of exemplary behavior of the parent.
Organized efforts by communities or organizations to improve the health and well-being of the child.
Software used to locate data or information stored in machine-readable form locally or at a distance such as an INTERNET site.
Organized services to provide health care for children.
Persons functioning as natural, adoptive, or substitute parents. The heading includes the concept of parenthood as well as preparation for becoming a parent.
Organized activities related to the storage, location, search, and retrieval of information.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
The art, technique, or business of producing motion pictures for entertainment, propaganda, or instruction.
Knowing or understanding without conscious use of reasoning. (Thesaurus of ERIC Descriptors, 1994)
The storing of visual and usually sound signals on discs for later reproduction on a television screen or monitor.
The act or practice of literary composition, the occupation of writer, or producing or engaging in literary work as a profession.
A genus of gram-negative, strictly aerobic, non-spore forming rods. Soil and water are regarded as the natural habitat. They are sometimes isolated from a hospital environment and humans.
Analog or digital communications device in which the user has a wireless connection from a telephone to a nearby transmitter. It is termed cellular because the service area is divided into multiple "cells." As the user moves from one cell area to another, the call is transferred to the local transmitter.