1. basics needs
1.1. resources need to survie
1.1.1. Water
1.1.1.1. what affects waters availability
1.1.1.1.1. quailtiy
1.1.1.1.2. quantity
1.1.2. Habitat
1.1.2.1. who decides what land is used for
1.1.2.1.1. competition for space
1.1.2.1.2. land management by state agencies
1.1.3. Food
1.1.3.1. growth influenced by
1.1.3.1.1. kinds of space available to grow producers
1.1.3.1.2. availability of water
1.1.3.1.3. fertilizers and herbicides
1.1.3.1.4. Biodiversity
2. limiting factors
2.1. Carrying capacity
2.1.1. community size
2.1.1.1. births
2.1.1.1.1. selection for types of offspring can help give preference to certain genes
2.1.1.2. deaths
2.1.1.3. predators/hunting
2.1.2. diversity of ecosystem
2.1.2.1. more options available for food chain stability
2.1.2.1.1. plants varity
2.1.2.1.2. insect varity
2.1.2.1.3. niche organisms
2.2. disease
2.2.1. can decrease population
2.2.1.1. limit food chain stabiliy
2.2.1.2. protection or susceptibility can be based on genetics
2.2.1.2.1. cavendish banana
2.2.1.2.2. potato famine
2.2.1.2.3. pesticide resistant bugs
2.3. major catastrophe
2.3.1. flooding destroying food and habitat
2.3.2. density independent