-major terrestrial or aquatic life zone, characterized by vegetation type or physical environment; terrestrial locations dependent on temperature and precipitation; aquatic locations defined by salinity
What is a biome
100
group of the same species occupying a specified area
What is population
100
(+/-)
-refers to an interaction in which one species kills and eats another
What is predation
100
the long-term average of conditions in the atmosphere, ocean and sheets of sea ice
What is climate
100
try to conserve an entire ecosystem
What is the ecosystem approach
200
-hot temperatures but decent amount of rainfall; small bushes and grasses
challenges:
-overgrazing by domesticated animals; climate change (loosing water) -> could change into a desert
What is a grassland
200
animals die really only of old age
What is Type 1 of a survivorship curve
200
between or among species
What is interspecific competiton
200
-produce more fuel-efficient vehicles; reduce vehicle use; increase solar power; improve soil management strategies
What is helping climate change
200
save and publicize a particular species
What is the species approach
300
-lesser temperatures with NOT very consistent rainfall -> pine trees
challenges:
deforestation and logging
What is a boreal forest
300
maximum number of individuals supported by a habitat
What is the carrying capacity
300
(+/+)
-both species benefit from an interaction
What is mutualism
300
-human health at risk; water resources are threatened; agriculture and food security is threatened
What are societal impacts of climate change
300
-pollination provides for 1/3 of the worlds food supply on over 130 crops and saves over $29 billion a year; food production esitmated at 6 million tons a year and adds $3 billion to the economy; natural pest control
What are economic benefits to biodiversity
400
-still, free zone of water; photic zone -> light can penetrate/very productive ; profundal zone -> less light/less productive
challenges:
pollution
What are lakes and ponds
400
-factors that limit population size, regardless of population density; usually abiotic factors, including weather and climate -> extreme heat...hurricanes...etc
What are density-independent factors
400
both are able to live together and level out
What is coexistence
400
the specific conditions of the atmosphere at a particular place and time, measured in terms of variables that include temperature, precipitation, cloudiness, humidity, air pressure and wind
What is weather
400
-human population growth; habitat loss and fragmentation; environmental degradation ; climate change; overexploitation; invasive species
What are threats to biodiversity
500
-freshwater meets sea
challenges:
runoff and pollution
What is an estuary
500
-how an organism partitions its available time and energy in each stage of its life; trade-off between growth, maintenance and reproduction
affected by:
age at first reproduction; number of mating events; number of offspring produced
What is life history
500
makes potential prey difficult to spot against its background
What is cryptic coloration
500
-increase in global surface temperature; decrease in arctic sea ice; decrease in land ice; increase in sea level