Class Notes (1,100,000)
CA (620,000)
U of G (30,000)
BIOL (2,000)
BIOL 1070 (200)
Lecture

BIOL 1070 Lecture Notes - Heracleum Mantegazzianum, Association Football, Abiotic Component


Department
Biology
Course Code
BIOL 1070
Professor
Wright& Newmaster

Page:
of 2
BIO , MONDAY OCT 17 th
!!
We know old field majestic maple
Diversity Plants
x-diversity
birds
physiognomy
invasive sp.
Giant hogweed
Nuisance sp.
? Endangered sp.
***I CLICKER : ANS: D) richness, trophic level and abundance !! CORRECT
Uunique properties of a community:
Number of species (diversity)
Trophic structure (plants, herbivores, carnivores)
Composition (abundance, evenness, dominance)
ICLICKER 2. ANS: A) number of individuals, area, and growth.
Unique properties of populations:
SIZE= Number of individuals (abundance)
Geographic distribution = are in which individuals occer.
Growth ( increase or decrease
What ecological factors place limits on a species geographical range?
Abiotic factors
Dispersal
Biological interactions
Habitat selection
EXAMPLES OF ABIOTIC FACTORS:
Sunlight (Shade/sun), climate, water/moisture, soil quality (minerals,texture,acidity)
, temperature, nutrients (nitrogen,phosphorus, potassium), Habitat pollutants and geology.
How do Abiotic factors influence the distribution of plants and animals?
Restric access to resources.
-food/nutrients.
Habitat
Limit physical tolerances.
Hot/cold
Chemistry(toxins)
Physical barriers.
River, mountaint , lake & ocean
How would you determine which abiotic factor is limiting the distribution of a species?
Field observations of actual range of distribution.
Determine ecological tolerances
Correlation between environmental gradients and a species optimum range,
Experiments (field translplant, controlled environment)
Light Water Survival
A low low 90
B high high 44
C High low 19
Which factor is most important?
Light or Water?