What affects populations?

biotic & abiotic factors

Populations are AFFECTED BY BOTH! LIVING--biotic NON-LIVING--abiotic AND

BIOTIC LIMITING FACTORS can you imagine both biotic & abiotic factors that could reduce a population? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS

Make a quick t-table in your notes like this: BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS

hurricanes can limit a population for sure. BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS

are hurricanes biotic OR ABIOTIC? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS

are hurricanes biotic OR ABIOTIC? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS HURRICANES, TORNADOES & other BIG STORMS

what about harmful pathogens like this e-coli bacteria? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS HURRICANES, TORNADOES & other BIG STORMS

BIOTIC LIMITING FACTORS MOST PATHOGENS ARE BIOTIC (not viruses), and they can limit populations Too! BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS HURRICANES, TORNADOES & other BIG STORMS

how about competition-survival of the fittest & all? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS HURRICANES, TORNADOES & other BIG STORMS this is SPARTA!

BIOTIC LIMITING FACTORS COMPETITION IS DEFINITELY BIOTIC—LIVING THINGS COMPETE FOR SPACE, MATES, FOOD… BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION HURRICANES, TORNADOES & other BIG STORMS

BIOTIC LIMITING FACTORS WHAT ABOUT DROUGHTS? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION HURRICANES, TORNADOES & other BIG STORMS

droughts & floods are abiotic limiting factors to a population. MANY PATHOGENS COMPETITION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too

eeew! Parasites harm us hosts! BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too

BIOTIC LIMITING FACTORS MOST PARASITES (NOT VIRUSES THOUGH) ARE BIOTIC LIMITING FACTORS TO A POPULATION. BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too

ESTUARIES: TWICE THE BREEDING & FEEDING… BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too

ESTUARIES (brackish Rivers/ocean overlap) HAVE TWICE THE NUTRIENTS. BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too

ESTUARIES: TWICE THE NUMBER OF PREDATORS! BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too

PREDATION IS A BIOTIC LIMITING FACTOR TO A POPULATION. BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too

EXTREME TEMPERATURES CAN IMPACT A POPULATION. BIOTIC OR ABIOTIC? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too

EXTREME TEMPERATURES CAN IMPACT A POPULATION. BIOTIC OR ABIOTIC? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES

MAKE SURE YOU HAVE ALL THIS!!! BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES

NOW HERE’S A GOOD QUESTION:

biotic or abiotic limiting factors? WHICH LIMITING FACTOR Does NOT CARE ABOUT POPULATION DENSITY: BIOTIC or abiotic? biotic or abiotic limiting factors?

BIOTIC LIMITING FACTORS WHICH LIMITING FACTOR DOesN’T CARE ABOUT POPULATION DENSITY: BIOTIC or abiotic? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES

Do tornados care whether territory has high or low population density?

Does rainfall care where it lands?

abiotic factors don’t care about population density! BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES DENSITY- INDEPENDENT

BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES DENSITY- INDEPENDENT: DO NOT CARE about POPULATION DENSITY

What about biotic factors? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES DENSITY- INDEPENDENT: DO NOT CARE about POPULATION DENSITY The more folk who sleep here, the more we FEAST!

What about biotic factors? Do these do better in high populations? BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES DENSITY- INDEPENDENT: DO NOT CARE about POPULATION DENSITY The more folk who sleep here, the more we FEAST!

BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION DENSITY- DEPENDENT: thrive on high population densities HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES DENSITY- INDEPENDENT: DO NOT CARE about POPULATION DENSITY

BIOTIC LIMITING FACTORS Make sure you know this! BIOTIC LIMITING FACTORS ABIOTIC LIMITING FACTORS MANY PATHOGENS COMPETITION MANY PARASITES PREDATION DENSITY- DEPENDENT: thrive on high population densities HURRICANES, TORNADOES & other BIG STORMS DROUGHTS, FLOODS too EXTREME HEAT & FREEZES DENSITY- INDEPENDENT: DO NOT CARE about POPULATION DENSITY