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Les impacts de l'activité humaine- Impacts positifs

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Les impacts de l'activité humaine- Impacts positifs

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Des parcs nationaux ont été creer autour des prairies et certaines organisations replantent les zones détruites. Les gouvernements ont créé des lois contre la chasse aux animaux qui sont endangerer. Le service des parcs nationaux des États-Unis a préservé des terres pour la population de bisons américains. Et beaucoup de gens font des efforts d' arrêtez de braconner (poaching).

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- Les sauterelles (1e consommateur) mangent de l'herbe ( 1e producteur), les chiens de prairie (omnivore) mangent des sauterelles et les crotales (carnivores) mangent des chiens de prairie.
- Un chien de prairie (omnivore) manger de l'herbe de bleuet (producteur). Une Furet à pieds noirs (carnivore) mange le chien de prairie. Puis un aigle royal (carnivore) attaque et mange le furet.

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Les impacts de l'activité humaines- Chasse à l'extinction

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Les impacts de l'activité humaines- Chasse à l'extinction

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La chasse présente un impact sérieux sur les biomes des prairies. Les humains ont dévasté la population de bisons américains qui a presque disparaître à cause de la chasse excessive pour la fourrure et la viande. Les braconniers (poachers) ont tuent également des rhinocéros pour leurs défenses et des éléphants pour leur ivoire sans se soucier de la protection de l'espèce.

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- Montagnes
- Collines
- Précipitations annuelles limitées
- Climat sec toute l'année
- Peu d’arbres
- Manque de nutriments dans le sol
- Les prairies tempérées ont des hivers froids et des étés chauds avec quelques pluies.

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Au Canada:
Des montagnes Rocheuses dans le sud de l'Alberta, la Saskatchewan et dans la vallée de la rivière Rouge au Manitoba.
Dans la reste du monde:
Les États américains du Dakota du Nord, du Dakota du Sud, du Montana, du Nebraska, du Kansas, de l'Oklahoma, du Texas, du Wyoming, du Colorado et du Nouveau-Mexique.

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Les impacts de l'activité humaines- Développement urbain

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Les impacts de l'activité humaines- Développement urbain

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Le plus grand impact que les humains ont sur les prairies est le développement de zones ouvertes pour l'agriculture ou le développement urbain. C'est habituel parce que les prairies sont généralement des zones planes qui besoin peu de travaux pour developer le terrain. Le développement de terre éloigne les animaux des zones populer et modifie les conditions de l'environnement.

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Hinterland Who's Who / Faune et flore du pays

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https://www.ducksters.com/science/ecosystems/grasslands_biome.php
https://www.prairiesrac.com/climate-impacts/#:~:text=The%20Canadian%20Prairies%20are%20recognized,and%20springs%20warmer%20and%20wetter.
https://www.nrcan.gc.ca/changements-climatiques/impacts-adaptation/introduction-prairies/10381
https://www.enchantedlearning.com/biomes/grassland/prairie.shtml
https://www.nature.com/articles/srep26958
https://education.nationalgeographic.org/resource/food-chain
https://thecanadaguide.com/places/the-prairies/

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Even if there is a significant reduction in global greenhouse gas emissions, the Prairies will experience significant changes in its climate by the end of the 2080s. These changes have a range of potential implications-both positive and negative-for different sectors and groups, and they will be felt differently across the Prairie provinces.
Agriculture: Forestry: Mining: Transportation and Infrastructure:

Increased damage to southern roads, railways and other structures as a result of flooding, erosion and landslides.

Continuing loss of winter roads; reports already show decreased ice thickness, poor ice texture and density, delayed winter road seasons and decreased load limits, which leads to higher costs for communities to transport goods and services, as well as greater social isolation.

The longer ice-free season in Hudson Bay and northern channels will increase opportunities for ocean-going vessels to use the Port of Churchill.

Due to continued permafrost degradation, northern railways (such as the rail line serving Churchill) will require more frequent repair, if not replacement.

Permafrost degradation will also affect northern roads, airstrips and building foundations.

Energy: Fisheries and Biodiversity:

Warming surface water temperatures will exacerbate the presence of blue-green algae blooms, potentially affecting commercial fisheries.

Geographic ranges of plants and wildlife are expected to move northward; as species have varying capacities to migrate, losses in ecosystem function are expected.

Reduced habitat for endangered species like woodland caribou and polar bears.

Conditions will become more favourable for some diseases and invasive species, putting more pressure on native species.

A longer fall will delay the onset of winter conditions and start of winter recreational activities (e.g., skiing, snowmobiling), while longer, warmer summers may increase opportunities for summer activities (e.g., cottages, camping, boating). These changes have implications for the tourism industry and seasonal businesses.

Health: People and Communities:

Increased cost of operations such as snow removal, street repairs, storm drains and flood protection measures, along with greater disruption of normal municipal functions, are possible, particularly during extreme weather events.

Asphalt, concrete and other hard surfaces in the city absorb radiation from the sun, exacerbating heat waves. Warmer conditions are expected to put greater pressure on the healthcare system and on electricity generation and distribution systems.

Small communities largely dependent on well water or smaller reservoirs are at greater risk as drought intensifies or increases in frequency.

Declines or uncertainties in the availability of moose, caribou, deer and fish will increase Indigenous communities' dependence on imported foods and could exacerbate existing food insecurities and health concerns.

More severe extreme weather events will affect the bottom lines of insurance companies and may lead to higher insurance premiums or refusal of insurance.

Codes, standards and other instruments will have to be adjusted to accommodate changes from historical climate norms, with implications for engineers and planners as part of infrastructure design, operation and maintenance.

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Climate Impacts - Prairies Regional Adapation Collaborative

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Even if there is a significant reduction in global greenhouse gas emissions, the Prairies will experience significant changes in its climate by the end of the 2080s. These changes have a range of potential implications-both positive and negative-for different sectors and groups, and they will be felt differently across the Prairie provinces.

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- Cerf
- Bison
- Chiens de Prairie
- Coyotes
- Écureuil Renard
- Wapiti
- Gopher
- Rats Musqués

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- blé
- avoine
- orge
- seigle
- lin
- canola
- asclépiade
- tournesol