1.1 Ecosystem + Biomes

biome

large area with similar climate conditions that determine plant and specie

competition

organisms fighting over a resource like food or shelter; limits population size

predation

one organism using another for energy source

commenalism

relationship that benefits one organism and does not impact the toher

mutualism

relationship that benefits both organisms

resource partitioning

the division of resources among species to reduce competition

temporal partitioning

using resources at different times to avoid competition

spatial partitioning

using different areas of a shared habitat i.e differents part of tree

morphological partitioning

using different resources based on different evolved body features

biome

an area that shares a combination of avg yearly temp and precipitation

what does latitude determine for biomes

temperature and precipitation

biome shift

when biomes start shifting due to global warming

what does salinity determine

which species can survive and usability for drinking

what does water depth influence

how much sunlight can penetrate and reach plants below the surface for photosynthesis

what does water flow influence

which plants and organisms and how much oygen dissolves into water

warmer water holds ____ dissolved oxygen

less

holding less dissolved oxygen supports ____ aquatic organisms

fewer

why do rivers have higher oxygen levels

because of aeration from flowing water and contact with the atmosphere.

littoral waters

shallow water with emergent plants

limnetic waters

where light can reach (photosynth); no rooted plants, only photoplankton

profundal waters

too deep for sunlight (no photosyn.)

benthic waters

murky bottom where inverts (bugs) live, nutrient-rich sediments

benefits of wetlands

1. stores excess water during storms, lessening floods

2. recharges groundwater absorbing rainfalll into soil

3. filter pollutants from water draining

4. high producitivity due to lots of water nutrients

estuaries

areas where rivers empty into the ocean

why do estuaires have high productivity

nutrients in sediments are deposited into it by river

what are the most diverse marine biome on earth

coral reefs

coral take ____ out of the ocean to create calcium carbonate

co2

algae provide _____to coral reef

sugars

intertidal zones

narrow band of coastline between high/low tide

photic zone

area where sunlight can reach in oceans

aphotic zone

areas too deep for sunlight to reach in oceans