[DOC] [TLE] Insect migration - Wikipedia [PAR] Insect migration is the seasonal movement of insects, particularly those by 
species of ... animal's own locomotory exertions or by its active embarkation on a 
vehicle. ... air speeds in this region are typically lower than the flight speed of the 
insect. ... Day-flying insects primarily make use of the sun for orientation, however 
this... [DOC] [TLE] Science Explorations: Classify Insects: Zoom in on True Bugs: Life ... [PAR] This change in form is known as metamorphosis, and each time an insect .... it is 
considered to be decticous, but if it lacks mandibles for escaping from the ... for 
the purpose of laying eggs but use it as a weapon against insect enemies ... The 
dispersal of insects by air is sometimes divided into two types, active and passive
,... [DOC] [TLE] Chapter 1 - Diffusion and Transport [PAR] Jul 17, 2011 ... Others are active processes--they oppose some passive process, ... Some 
substances move by only one of these process, whereas others can use several 
of them. .... Many insects breathe through their skins, the air simply entering the 
.... A cell placed in solution may change size depending upon what is in... [DOC] [TLE] Cereal aphid movement: general principles and simulation modelling [PAR] Dec 23, 2013 ... Although they are one of the most comprehensively studied insect groups ... 
Keywords: Long-distance movement, Migration, Cereal aphid, Flight, Simulation 
modelling ... with predominantly passive transport in windy weather and active .... 
allowing aphids to spread locally through crops more efficiently than... [DOC] [TLE] Understanding birds & weather: Fall birding basics | eBird [PAR] Sep 15, 2011 ... In this article we'll discuss the basics of fall bird migration as it relates to weather, 
... Birds use varying migratory strategies depending on, among other .... Behind a 
typical fall cold front the air is dry and cool, and the wind direction ... stressed from 
disorientation in the fog or weakened from flying through rain. [DOC] [TLE] Cloud-radar observations of insects in the UK convective boundary ... [PAR] May 28, 2009 ... ABSTRACT: Radar has been applied to the study of insect migration for ... which 
represent passive tracers, indicating active insect movement. ... nearly always 
based on X-band (3.2 cm wavelength) ex- ... the opportunistic use of radars 
designed for other (most .... The air-flow through the net was estimated. [DOC] [TLE] EIA Energy Kids - Solar - US Energy Information Administration [PAR] When converted to thermal energy, solar energy can be used to heat water for 
use in homes, ... Solar energy systems do not produce air pollutants or carbon 
dioxide. ... When photons strike a PV cell, they may be reflected, pass right 
through, or be absorbed by .... Solar heating systems can be classified as passive 
or active. [DOC] [TLE] Dispersal And Migration - Annual Reviews [PAR] to be related to the well known escape movement, a phase of the active life 
releasing the insect ... tain chains through passages, but these insects have been 
seen to settle in ... rates of parasites and predators must also be considered in 
biological con .... Passive wind transport ends if the convective air movement 
fades and. [DOC] [TLE] All about butterflies | Department of Horticulture [PAR] Butterflies are the adult flying stage of certain insects belonging to an order ... (2) 
Butterflies normally are active during the daytime while most moths are active at 
night. ... A life cycle is made up of the stages that a living organism goes through 
.... Monarchs are considered the long-distance champions of butterfly migration,... [DOC] [TLE] The biometeorology of high-altitude insect layers - Department of ... [PAR] (ii). Declaration. I confirm that this is my own work and the use of all material ... 
displacement. This thesis represents the first substantial analysis of insect 
migration and ... Mason for academic guidance through the monitoring committee
. ...... layer (ABL) (see 14): both active and passive movements are affected (to a 
lesser. [DOC] [TLE] flight facts, information, pictures | Encyclopedia.com articles about ... [PAR]

Question: Migration of insects thru the air is classed as active or passive, depending on use of this
Answer: wind