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Black Bear

Samantha Arthur December 5, 2012 Period 7
by

Samantha Arthur

on 16 December 2012

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Transcript of Black Bear

Biotic Habitat Features Prefer woodlands
Trees
Grassy areas
Open plains and tundra Abiotic Habitat Features Hot or cold
Arid or humid
They live around water and rocks What is a black bear? Black Bears are usually black but could be brown, gray, or white
Their hair is short Food Chain Food chain Food Web Ursus americanus The Black Bear A series of organisms interrelated in their feeding habits, the smallest being fed upon by a larger one, which in turn feeds a still larger one, etc. Food Web A series of organisms related by predator-prey and consumer-resource interactions; the entirety of interrelated food chains in an ecological community Grass, grains, and seeds > Birds > Black bear
Honey from bees > Black bear
Plants in the water > Fish > Black bear Grass, grains and seeds Honey Plants Birds Fish Black bear Symbiotic Relationships A relationship of mutual benefit or dependence. An example of a symbiotic relationship with a black bear could be commensalism if the bears benefit from humans leaving out edible trash, or if the humans benefit from tourism because of the bear's presence. The relationship could also be mutualism if both are true, or could be parasitism if the tourism brought by the bears harmed the bear population, etc. All symbiotic relationships Commensalism: a class of relationship between two organisms where one organism benefits without affecting the other Mutualism: the way two organisms of different species biologically interact in a relationship in which each individual derives a fitness benefit (i.e., increased or improved reproductive output). Parasitism: a non-mutual relationship between organisms of different species where one organism, the parasite, benefits at the expense of the other, the host. Predation: a biological interaction where a predator (an organism that is hunting) feeds on its prey (the organism that is attacked). Competition: a contest between organisms, animals, individuals, groups, etc., for territory, a niche, or a location of resources, for resources and goods, for prestige, recognition, awards, mates, or group or social status, for leadership In predation, the black bear would be the predator and a fish, for example would be the prey In a competition, against most organisms, the black bear would be superior to the organism Habitat In Michigan, where black bears live, if humans set up bear traps and the bears get caught then there will be less bears. Also if humans decided to build complexes where the bears live, the bears will have to find shelter somewhere else and they'll have to adapt. If there was a natural disaster where the black bear lives, they could become endangered because it will be harder for them to find shelter.
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