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Published byColeen Josephine Peters Modified over 8 years ago
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By: Jarrett John Pd. 3
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Explanation of native, introduced, and invasive species 5 most common ways of they get into the country 4 ways they negatively affect our environment 3 invasive animals 2 invasive plants
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1) non-native (or alien) to the ecosystem under consideration and 2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health.
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Wanted Establishment in the Wild Escape from Captive Areas Chance of Economic Gain Human Enjoyment Exotic Pets
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Displace native species Reduce native wildlife habitat Reduce forest health and productivity Alter ecosystem processes
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Feral Swine (Sus scrofa Linnaeus)- introduced in 1500’s for food. Damages plants and Habitat. Population very high and a serious issue Emerald Ash Borer (Agrilus planipennis) Causes destruction of many Ash Trees and some serious habitat destruction. First discovered in Pennsylvania. Elongate Hemlock Scale (Fiorinia externa Ferris)- Damages host tree. Found throughout Northeastern U.S. Were not introduced by humans
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Bull thistle (Cirsium vulgare)- Native to Europe and Asia. Aggressive and highly competitive with native plants. Introduction not known but around early 1800’s for ornamental purposes. Garlic mustard (Alliaria petiolata)- Native to Europe and Asia. Introduced as a culinary herb in the 1860’s. Harsh Competition with Native Species.
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Definition 5 Most Common Reasons for Endangerment Preventing Endangerment 3 Endangered Animals in PA 2 Endangered Plants in PA
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Endangered Animal -is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters
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Poaching Pollution Habitat Loss Pesticides Competition
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Protect Wildlife Habitat Join a Conservation Organization Recycle and Reduce Energy Intake Reduce Threat of Invasive Species Minimize use of Pesticides Get Involved
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Mountain Lion- habitat loss and poaching Bog Turtle- habitat destruction Peregrine Falcon- pesticides
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Northern Bulrush- habitat destruction Small Whorled Pogonia- habitat destruction
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Definitions 1 Reintroduced Species in PA Why, When, How the species was Reintroduced
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Reintroduced Species- a release of species from captivity or other areas where the species can survive back into the wild Extirpated Species- a species that no longer exists in the wild in a certain area but can be found elsewhere
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Rocky Mountain Elk -They released 177 Elk from Wyoming and South Dakota into Pennsylvania because of the low elk population in the state. They then became known as the Rocky Mountain Elk.
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www.endangeredspecie.com www.animals.about.com www.google.images.com www.ento.psu.edu www.invasivespeciesinfo.gov www.fs.fed.us www.fws.gov
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