1. Flashcards
Breeding once in a lifetime
Pacific salmon fish
Bamaboo
Produce large mmnumber of small soze offsrpings
Oysters
Pelagic fish
When resources in habitat are unlimited
Exponential growth
When resources are limited
Logistic growth
Name of logistic curve
Verhlust Pearl, logistic curve
When population density reaches carrying capacity
Asymptote
Factors affecting population
Food availabilty
Predation pressure
Adverse weather
Population density fluctuates due to four basic procesess
Natality
Immigration
Mortality
Emmigration
If a new habitat is just being colinized
Immigration is more imp than birth rates
Genetically fixed adaptation
Kangaroo ratin north american deserts
CAM plants like opuntia
Allen’s rule- shorter extremeties of animals in colder climates
Thick blubber in seal
Animals living in extreme environments show
Chemical adaptation
Physiological adaptation
Altitude sickness
Behavioiral adaptation
Desert lizard
Migration eg
Siberian crane migrating to bharatpur
Suspend eg.
Diapause in zooplanktons
Hibernaton in bear
Aestivation in snails and fish