Activity 2.3 – Biosphere and Interconnections

Chapter 4: The role of energy in the functioning of physicals process and ecosystems on Earth, primarily sourced form solar energy through photosynthesis.

Chapter 7: Biodiversity is crucial for ecosystem stability, human survival, and its importance lies in its diversity of species, genetics, and ecosystems. Life is classified into five kingdoms: Monera, Protista, Fungi, Plantae, and Animalia.

Chapter 8: Discover the diversity of biomes and ecozones in Canada, from the tundra of the Arctic Cordillera to the tropical rainforests, and understand the impact of human activities on natural ecosystems.

Energy and Ecosystems are interconnected in that all organisms and ecosystems require continuous access to external sources of energy to avoid degradation. Sunlight is the primary source of energy that supports almost all life and ecosystems, and drives the metabolic process of photosynthesis that combines carbon dioxide and water into simple organic molecules. "The fixed energy of plant biomass supports ecological food webs, where plants are eaten by herbivores and then by carnivores"(Freedman, 2018). Dead biomass supports a decomposer food web. Sunlight also drives important planetary functions such as the hydrologic and climatic systems, but human activities can have a negative impact on food webs and even Earth's climatic system.

Biodiversity refers to the richness of biological variation at various levels, including genetics, species richness, and community diversity. Biodiversity is important for the survival of humans and their economy, as well as all other species, and has inherent value. "However, human activities have resulted in the extinction of many elements of biodiversity and pose a threat to the survival of many others" (Freedman, 2018). The loss of biodiversity is a major aspect of the environmental crisis and is connected to Energy and Ecosystems, as changes in energy sources and ecosystem degradation can lead to a loss of biodiversity.

Biomes and Ecozones are geographical extensions of ecosystems and are characterized by natural landforms, climate, species, and ecological communities. Temperature and moisture availability are the most critical environmental factors affecting the distribution of terrestrial biomes, while marine biomes are influenced by depth, nutrient availability, and temperature. "Canada's natural landscapes are divided into biophysical regions known as ecozones, which are further divided into ecoregions" (Freedman, 2018). Human activities are rapidly modifying the natural biomes and ecozones of the world, leading to a loss of biodiversity and increased risk to inherent values. The connections between Biodiversity and Biomes and Ecozones are clear, as a loss of biodiversity can result in changes in the structure and function of biomes and ecozones.

In conclusion, the concepts of Energy and Ecosystems, Biodiversity, Biomes and Ecozones are interconnected through complex relationships and associations. All living organisms require energy to survive and ecosystems require a continuous source of energy to avoid degradation. The loss of biodiversity is a major aspect of the environmental crisis and is connected to Energy and Ecosystems. Biomes and Ecozones are geographical extensions of ecosystems and human activities are rapidly modifying them, leading to a loss of biodiversity. Understanding these connections is crucial for developing sustainable solutions to the environmental crisis.

References:

    Freedman, Bill. Environmental Science: A Canadian Perspective. W. Ross MacDonald School Resource Services Library, 2018

    Text2MindMap, https://tobloef.com/text2mindmap/.