Row A
The cycle which defines a bird’s migration
What is the Annual Cycle
This is the amount of time in one 24 hour day to night cycle in which a bird is exposed to light
What is photoperiod
The timing of yearly ecological processes, spanning whole environments
What is phenology
This is the number one cause of bird mortality across the United States
What are cats
These places serve as re-fueling stations for birds along their migratory journeys
What are stopover sites
The non-migratory movements of birds carried out on a daily basis
What are local movements
This ratio happens when multiple populations of breeding birds are connected by gene flow or dispersal
What is population connectivity
This style of annual movement involves birds that stay in one place year round
What is residence
This annual movement involves returning to the same spot every year on the same schedule
What is obligate migration
This migration style involves only a portion of a species moving each year
What is partial migration
This migration style involves moving from place to place with no distinctive yearly pattern
What is nomadic migration
These are the differences between migration and dispersal
What are direction paths (Migration is two way and Dispersal is one way)
The likelihood of an individual to return to a specific habitat yearly without having been born there
What is fidelity
This is the term for places where birds rest or shelter during their migration paths
What are stopover spots
The natal imprint on the habitat in which baby birds were raised
What is the Natal Habitat Induction Hypothesis
As migratory connectivity _________, population connectivity __________ and vice versa.
What is increases, decreases