Migration
* Most migration depends on climates
  - improves calf survival
* Most migration involves horizontal movement
  - individuals
  - occurs in mammals
  - takes place during the day, and flocks fly low overhead in a V-formation
* Most migrations begin with the birds starting off in a broad front
  - correspond to a change in seasons
  - involve horizontal travel
  - occur at relatively low altitudes
* Much migration is of individuals, rather than families, and based on individual decisions.
* Some migration causes death
  - fevers
* Some migration involves flight
  - long flight
  - is caused by invasions
* Some migration occurs in embryos
  - old embryos
* Some migrations are fatal, with insects carried into deserts, poleward in autumn, and out to sea
  - take a vertical direction and involve no appreciable horizontal movement
* acts to unify gene frequencies between populations.
* allows acclimation to the changing salinity
  - animals the opportunity to take advantage of seasonal resources
  - birds to take advantage of productive seasons and avoid unproductive seasons
* are seasonal movements of wildlife from one habitat to another.
* big part of life for all dolphins.
* can be wholly within fresh water, or between fresh water and the sea
  - cause respiratory signs that mimic upper respiratory infections
  - provide ecological links between different habitats
* combination of instinctive and learned behaviors.
* complex behavior that involves certain genetically acquired or learned instructions.
* contributes to conflict
  - nonmetro per capita income growth
  - reductions
* critical time for gray whales.
* dangerous time for Whooping cranes and other migratory birds.
* decreases the ratio of dependency.
* depend heavily on sea water temperature.
  - the economy, welfare, shelter, and transportation available to a society
  - weather
* fuels growth
  - population growth
* given in American myths of identity.
* has effects
  - tradition
* have profound economic and social effects that can be observed throughout history.
* homogenizes gene frequencies among populations.
* huge behavioral adaptation.
* increases chances.
* involves the fish moving from one part of a water body to another on a regular basis
  - transformation of archival data from one format to another
* is also a deconvolution, but in the space domain as well as the time domain
  - more difficult to measure than fertility and mortality
  - believed to be influenced by various neural glycoproteins or fibres
  - common among the groups inhabiting the Asian countries
  - condition-dependent in some birds
  - events
  - generally for the purposes of feeding and breeding
  - how bottlenecks arise forcing change
  - important to maintaining healthy bull trout populations
  - more than downward continuation of wave fields
* is most effective when the water content and permeability of soil are high
  - evident among birds
  - motion
  - nature's classic solution to the problem of over-population, scarcity and competition
  - necessary to counteract the effects of environmental and demographic extinctions
* is often annual and is closely linked with the cyclic pattern of the seasons
  - annual, and thus is closely linked to the planet's seasonal changes
* is one of the fundamental ways societies change through time
  - great pulses in wildlife cycles
  - major ties that bind our societies
  - marvels of the animal world
  - strategy for escaping the killing temperatures
  - people
  - related to the timing of unemployment within a sojourn
  - seasonal, and movements are determined by retreating or advancing ice
  - sensitive to economic change and economic opportunity
  - the instinct that seems to have puzzled students of behavior most
  - triggered by the length of the day, possibly also the angle of the sun
* is usually a seasonal phenomenon
  - social, and is probably sometimes facilitated by social tradition
  - very important in the history of the West
* is when a group of individuals move from one population to another
  - an animal moves from one place to another, often from one habitat to another
* key aspect of human behavior
  - component of the impact of environmental change on population
  - factor in the search for geo-political stability
* limits the genetic divergence of populations and so impedes the process of speciation.
* major component of population growth in Queensland
  - force for population change at all spatial scales in England
* mass directional movement of large numbers of organisms from one location to another.
* means to move from one place to another.
* measure of last resort.
* mechanism of increasing an organisms fitness.
* natural phenomenon.
* occur on a workgroup by workgroup basis over a period of time.
* occurs during winter.
* occurs in early springs
* occurs when an animal moves from one environment to another
  - bass move along a route from from shallow to deep water or vice versa
  - the band and balloon migrates through the stomach wall into the stomach lumen
  - within and among countries
* often results in occurrences in habitats or locations out of the normal range.
* phenomenon as old as humankind
  - which all metros in the country are facing
* plays a big role in the Kalugas early life.
* refers to seasonal movements of animals from one area to another
  - the flow of genes into or out of an isolated population through inbreeding
* seasonal movement of an animal.
* structural adaptation behavioral adaptation form of communication.
* succession of lofty circles with a southward drift.
* take place, plants flower or fruit, courting, nesting, mating, and new births take place.
* takes places.
* very challenging time for birds and it can be a substantial source of mortality.