How Abiotic and Biotic Factors Affect the Population Size and Distribution…
How Abiotic and Biotic Factors Affect the Population Size and Distribution of Organisms?
Abiotic (Physics and Chem)
Material at the bottom of the stream
Cloudiness of the water
Hours of daylight
Availability of food, mates and nest sites
Competition for food and mates
Predation, animals that kill and eat.
Parasitism, animals that live in a host and sucks its nutrition.
Disease eg. viruses
Presence of pollinating insects