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Cane toads (Biotic (Fauna (Northern quoll (northern-quoll-mrw3735-1), Red…
Cane toads
Biotic
Flora
Mitchell grass
Fauna
Red-belled black snake
Northern quoll
Mice
Prairie dogs
Snakes
Lizards
Insects
Kangaroos
Competition
Native species
Food
Habitats
Predation
Anything that fits in mouth
Native fauna with tolerance
Symbiosis
May carry diseases
Chytrid fungus
Other names
Rhinella marina
Neotropical toad
Marine toad
Bufo marinus
Changes of introduced species
Abundance
100 to 100mil+
Higher than native species
Distribution
Front lines
Faster
55-60km/year
Northern Territory
Northern WA
Northern NSW
Queensland
Kakadu national park
Supposed to eat beetles
Failed
Rapidly reproduced
Travelled
Adaptation
To Australian environment
Impacts of introduced species
Poisonous trait
Native fauna
Tolerance
Intolerance
Learn to avoid toads
Parotoid gland
Milky substance
Found on shoulders
Abundance
Population increases
≈35000 eggs per female
Breed quickly
Live in more habitats
Causes more damage
Spread to urban civilisation
Substantial decline in native species
Abiotic
Climate
Temperature
Summer
≈28°C
Winter
≈18°C
Precipitation
≈46cm
Topography
Mostly flat
Some elevation
Northern Australia
Queensland
Light intensity
High UV levels
Relationship b/w abiotic & biotic
Selection pressures
Phenotypes
Dominant traits
Faster in front lines
Advantage
Survival
Reproduction
Small amount of water
25°C-30°C
Natural selection
Minimally affect cane toads
Tolerant to Australian environment
Abiotic provide conditions
Sustainable growth for biotic
Habitats
Ecological niche
Abiotic
Grassland
Scrubs
Lack of trees
Temperature
25°C-30°C
Reproduction
Biotic
Eat
Insects
Pet food
Carrion
Household scraps
Anything that fits in mouth
Native fauna
Northern quoll
Competes
Native fauna
Usually wins
Ecosystem
Grassland
