Chapter 49 (exam 4) Flashcards
ecology
study of organisms interact with each other and their environment
what are the three parts of the definition of ecology
- study of distribution and abundance of organisms (biotic)
- factors that affect the distribution and abundance
- interactions between organisms and the transformation and flux of energy and matter
what are the 5 main levels ecologists work at
- organisms
- populations
- communities
- ecosystems
- biosphere
organismal ecology
how do individuals interact with each other and their physical environment
- morphological, physiological, and behavioral adaptions that increase fitness
population ecology
- how and why does population size change over space and time
- focus on number and distribution in a pop. change over time
population
group of indv. of the same species that lives in the same area at same time
community ecology
- how do species interact and what are the consequences
- nature of interactions between species and the consequences of the interactions
biological community consists of what
populations of different species that interact with each other in a particular area
ecosystem ecology
- how does energy flow
- how does nutrients cycle thru the local environment
ecosystem
consist of all the organisms in a particular region along with nonliving components
abiotic
not living components
- physical and chemical
global ecology
- how is biosphere affected by global changes in nutrient cycling and climate
- look at human impacts on biosphere
biosphere
thin zine surrounding Earth where all life exists
what does conservation biology encompass
- all five levels of ecological study
- effort to sturdy, preserve, and restore genetic diversity
what is a niche a product of
abiotic and biotic factors
what is a particularly important factor in determining where organisms can live
temperature bc has a big impact on physiology
why are niche models used
useful for quantifying and simplifying complex ecological relationships
what are the different types of biotic and abiotic factors
present and past
what is a non native species called
exotic species
what is an invasive species
exotic species that, when introduced to a new area, spreads rapidly and competes with the native species
what is the difference between weather and climate
weather is short term atmospheric conditions while climate is long term weather conditions
what is the relationship between sunlight and energy when it comes to the earth
the more sunlight that hits an area of Earth, the more energy it will have