week 11

Question 1

Assumptions under Mark’ recapture Study’

Answer 1

-random sample
-marking has no effect on survival
-marking individuals have time to mix with unmarked individuals before second sample
-marks are not lost
-population is closed(no birth, deaths, immigration or emmigration)

Question 2

habitat is influenced by

Answer 2

Distribution of resources in environment/landscape features
-habitat requirements of each individual
-social structure of species
-dispersal capacity/mode of reproduce of species

Question 3

Random distribution

Answer 3

-distance between individuals is random with respects to each other location
-can grow anywhere
-rarest distribution
-found in homogenous environments, like for example grasslands

Question 4

Uniform Distribution

Answer 4

maximal distance between any two individuals. Mainly found in plants

Question 5

Clumped distribution

Answer 5

resources are rare, and benefical things to group living

Question 6

Life History

Answer 6

-the schedule, frequency and duration of events in an organisms life time

Question 7

Populations grow larger through the birth of individuals and the____ of organisms from neighbouring populations

Answer 7

immigration

Question 8

________ (movement out of the population) reduce popu- lation size.

Answer 8

emigration

Question 9

age-specific mortality

Answer 9

is the proportion of individuals alive at the start of an age interval that died during that age interval

Question 10

age-specific survivorship,

Answer 10

is the proportion of individuals alive at the start of an age interval that survived until the start of the next age interval.

Question 11

The amount of energy invested in each offspring before birth called

Answer 11

passive parental care

Question 12

Many animals, especially birds and mammals, also provide _______ aftter birth

Answer 12

active parental care

Question 13

Some organisms, such as salmon, devote all their stored energy to a single reproductive event, a reproductive pattern called

Answer 13

semelparity.

Question 14

Other species, such as deciduous trees and red deer, reproduce more than once, a reproductive pattern called

Answer 14

iteroparity

Question 14

R-selected species-

Answer 14

species that live life in the fast lane

Question 15

K selected species

Answer 15

-species that take the time to reproduce and live usually larger species as well as lots of parental care and fewer offspring.