Flooding
Thunderstorm
Tsunami
Drought
The pine beetle has no predators in BC
Pine trees cannot produce a resin that traps the beetles
Frequent forest fires make pine trees weak and unable to stop beetle infestations
The winters are not cold enough to kill beetle larvae, and trees are stressed by overcrowding
Adaptive Radiation
Climax Community
Ecological Succession
Natural Succession
The beetles eat the parts of the tree that produce the resin
Blue stain fungus, carried in the beetle’s mouth, destroys the tree’s ability to use the resin
With warm summers, the resin is not as sticky as it was
Warm winters do not allow the trees to build up enough resin to protect themselves during summers
True
False
True
False
The site of a forest fire has many grasses and a few small jack pines growing today
Farmland is aerated after several years of hosting large herds of cattle. Wheat is then planted in the same farmland
A former mine site is developed to match the surrounding landforms, and topsoil that was removed before mining began is replaced
Pandas, which can no longer find enough bamboo to survive, are trapped to be raised in zoos
The bullfrogs prey upon many native species of frogs
The bullfrogs compete with other large amphibians for food
The bullfrogs have torn apart normal wetland ecosystems as they feed on underwater plants
The bullfrogs have introduced disease to the native frog population
The responsible use of resources, and the preservation of habitats
An unlimited exploration for, and export of, resources
The extensive use of natural ecosystems for agricultural purposes
The construction of large vehicle corridors
Animal species that lived in the trees disappear, and therefore do not provide waste material necessary for the soil
Burning trees release large amounts of carbon dioxide, which poisons the soil
Topsoil is eroded by wind and water without plants and trees to hold the soil in place
The large machines used to remove the trees create large ruts in the soil
True
False
Introduced species
Foreign species
Non-native species
Invasive species
The introduced species compete with native species for resources
The introduced species feeds on another introduced species
The introduced species weakens many native species
The introduced species preys on native species that do not have adaptations to avoid the introduced species
Some natural grasslands have been altered for agricultural purposes
Some mountain areas have been clear-cut, and steep switchback roads constructed to haul out timber
Some cities are developing industrial areas that include planting native species in parks
Some cities are building suburbs well outside the established downtown area
The gypsy moth
Scotch broom
The grey squirrel
Wild boars
True
False
True
False
They out-compete native birds for food and nesting sites
They destroy the habitat of many species when they feed
They feed on native amphibians, who don't have defenses to adapt
They carry a bacteria that infects native species
Non-native species
Invasive species
Native species
Introduced species
Primary succession
Natural selection
Adaptive radiation
Secondary succession
Ecosystem contraction
Ecosystem loss
Habitat expansion
Habitat fragmentation
Primary succession is different in almost every part of the world
The type of primary succession that occurs depends on the types of lichen and rocks that are present
Primary succession is the same in almost every part of the world
Primary succession in the northern hemisphere is like secondary succession in the southern hemisphere (vice versa)
Wait!
Here's an interesting quiz for you.