Search for "south asian canadians"

Displaying 21-29 of 29 results
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Coniferous Trees

Sometimes called evergreens, most coniferous trees keep their foliage year-round. There are over 600 living species of conifers, and while there is some debate over how many are native to Canada, the number is approximately 30.

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Autumn Colours

In spring and summer the most abundant substance in leaves is chlorophyll, which gives them their green colour. Chlorophyll is essential for photosynthesis, the process which converts the energy of sunlight into sugar. Sunlight is also necessary for the synthesis of chlorophyll itself.

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Cactus

Succulent plants of the family Cactaceae which consists of approximately 1600 species in 104 genera.

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Forest Harvesting

Forest harvesting involves cutting trees and delivering them to sawmills, pulp mills and other wood-processing plants. Its practical components include road construction, logging and log transportation.

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Medicinal Crops

About a third of the world's estimated 400 000 species of higher or vascular plants have probably been used for medicinal purposes by indigenous societies, generally in a raw or minimally processed form.

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Botany

The study of plant life is organized in 3 ways, which are also applicable to zoological material.

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Endangered Plants in Canada

A species is endangered if there are threats to its survival. Plants are put at risk for several reasons, including: climate change and the loss of natural habitat to cities, agriculture and industry. In Canada, these activities threaten entire natural ecosystems, such as older forests and Prairie grasslands. As of 2021, 250 plant species are at risk in Canada, according to the Committee on the Status of Endangered Wildlife in Canada. In addition, four are extirpated and one is extinct. The committee’s definition of a wildlife species includes taxonomic categories as well as geographically distinct populations. For example, the bent spike-rush (Eleocharis geniculate) is included on the list of at risk plant species twice, as there are two different populations, one in British Columbia and one in Ontario, facing different threats to their survival. (See also Endangered Animals in Canada.)

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Botany History

Long before formal study of plants began in Canadian academic institutions, they were studied by explorers and talented amateurs.