BIOB50H3 Lecture Notes - Lecture 3: Benthic Zone, Tide Pool, Lake Ecosystem
18 Oct 2016
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Lecture 3 september 13 physical environment and biosphere. It ultimately determines where organisms can live and the resources that are available to them. Thus understanding the physical environment is key to understanding the ecological phenomena. For example, if you put a fish into a desert, there would be an impact and understanding why there is an impact is key. Amphibian diversity map and how it is distributed around the planet. The red portions show a higher population of diversity. All of these tend to have a higher concentration of diversity near the equator because of how hot it is. Climate is the most fundamental component of the physical environment. Weather current conditions; temperature, precipitation, humidity, and cloud cover. Climate long term description of weather, based on averages and variations measured over decades; includes daily and seasonal/annual/decadal cycles. Climate determines the geographic distribution of organisms and it is not characterized not only by average conditions but also variations over time.
