Ecology
Published on Mar 10, 2016
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MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
Niche: What an organism does and how it interacts with BIOTIC and ABIOTIC factors in the environment.
Photo by Cubmundo
Competitive Exclusion Principle
Photo by MissMessie
No two species can occupy the same niche at the same place at the same time.
Photo by David Illig
If two species attempt to live in the same niche at the same time, competition for resources will occur and one species will be more fit for the environment.
Photo by monkeyc.net
Types of Symbiosis:
Mutualism: Both species benefit (+/+)
ex: insects pollinating flowers.
Photo by MightyBoyBrian
Commensalism: One species benefits the other is neither helped nor harmed (+/0)
ex: barnacles on whales
Photo by Sylke Rohrlach
Parasitism: One species benefits the other is harmed (+/-)
ex: mosquitoes, ticks, leeches.
Photo by turkletom
Interactions
Predation: One organism captures and eats another organism
Photo by Anxo Resúa
Predator: The organism doing the capturing and killing.
Photo by doublejwebers
Prey: the organism being captured and killed.
Photo by ShutterFotos
Ecological Succession
Primary Succession
Occurs on newly exposed surfaces.
Ex: bare rock, after a volcanic explosion, after a glacier.
Photo by NASA Goddard Photo and Video
The first species to colonize in these areas are called Pioneer Species.
Photo by cliff1066™
Secondary Succession
Occurs when a disturbance changes a community
ex: wildfires in woodlands, abandoned farmland.
Photo by USFWS/Southeast
