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Relationships in Ecology. By Saskia. Biological Community. All the interacting species living together in one habitat (also known as Biocoenosis). Example A forest of trees that is home to animals and other smaller plants, and is buried in damp soil that is home to bacteria and fungi.
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Relationships in Ecology. By Saskia.
Biological Community. • All the interacting species living together in one habitat (also known as Biocoenosis). • Example • A forest of trees that is home to animals and other smaller plants, and is buried in damp soil that is home to bacteria and fungi.
Intra-specific Competition. • Competition for resources between members of the same species. • Example • Adult male lions competing for mates in the same area as another male. • Crabs fighting each other for food.
Intra-specific Cooperation. • When individual organisms of the same species work together to help each other survive. • Example • A flock of birds or a school of fish help each other avoid enemies or look for resources.
Competition. • When organisms that coexist in the same environment compete for resources. • Example • A human and a seagull fighting over some chips.
Browsing/Grazing. • A herbivore constantly eating vegetation. • Example • A cow wandering around in a field eating grass.
Predation and Scavenging. • Predation – Capturing prey. • Scavenging – Feeding on dead or decaying matter. • Example • A hyena eats dead or decaying animals that have been caught by lionsand left behind
Commensalism. • The relationship between two organisms where one organism is helped, and the other is not helped or harmed. • Example • A barnacle living on the bottom of a whale. The barnacle finds a place to live, and the whale is unaffected.
Mutualism • The relationship between two species, where both the species benefit. • Example • A hummingbird feeding on the pollen of a flower. The hummingbird gets food, while the flowers pollen spreads and it is able to reproduce.
Parasitism • The relationship between two species, where one species benefits, and the other species is affected badly. • Ecto-parasitism – The parasite lives on the outside of it’s host. • Endo-parasitism – The parasite lives on the inside of it’s host. • Example • Ecto – A mosquito sucking blood from a human. • Endo – A tapeworm living in a dog’s gut.
Saphrophytism • An organism that grows on, or gets nutrients from dead and decaying organisms. • Example • Fungi growing on a forest floor eating dead leaves and other organic matter.
Antibiosis • The relationship between two species where the relationship is detrimental to at least one of them. • Example • A plant produces chemicals that is hazardous to the plants around it.