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- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/00%3A_Front_Matter/01%3A_TitlePageIntroduction to Ecology Sara Kappus
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/14%3A_Protecting_Biodiversity/14.02%3A_Non-profit_OrganizationsNon-profit organizations fund conservation research and actions.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/08%3A_Species_Interactions_in_Communities/8.05%3A_SymbiosisThere are many cases in which two species live in close association for long periods. Such associations are called symbiotic. In symbiosis, at least one member of the pair benefits from the relationsh...There are many cases in which two species live in close association for long periods. Such associations are called symbiotic. In symbiosis, at least one member of the pair benefits from the relationship. The other member may be injured (parasitism), relatively unaffected (commensalism) or may also benefit (mutualism).
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/13%3A_Threats_to_Biodiversity/13.02%3A_PollutionPollution is the release of harmful chemicals or other materials into the environment. Some types of air pollution results in acid deposition and climate change. Nutrient pollution of water bodies due...Pollution is the release of harmful chemicals or other materials into the environment. Some types of air pollution results in acid deposition and climate change. Nutrient pollution of water bodies due to fertilizer overuse results in eutrophication.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/05%3A_Adaptations_to_the_EnvironmentThe abiotic variables most influential in determining a species adaptations are temperature, and water, and the acquisition of nutrients and energy. While some organisms adapt to extremes in temperatu...The abiotic variables most influential in determining a species adaptations are temperature, and water, and the acquisition of nutrients and energy. While some organisms adapt to extremes in temperatures, others are able to tolerate fluctuations in temperature, and finally, others have evolved physiological mechanisms for maintaining a stable internal temperature despite fluctuations in their surroundings.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/00%3A_Front_Matter/06%3A_PrefaceThis book introduces Ecology, the branch of biology that deals with the relations of living organisms, including humans, to one another and to their physical surroundings. There is an underlying theme...This book introduces Ecology, the branch of biology that deals with the relations of living organisms, including humans, to one another and to their physical surroundings. There is an underlying theme which emphasizes how ecological relationships are changing under the immense pressure and demands of the human population and the growing need to conserve ecosystems from excessive rates of extinction and the erosion of ecological interactions.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/07%3A_Population_EcologyBut they and other small forage fish like herring and anchovies aren't immune to the effects of commercial fishing. A new study looks at seven species over 25 years and finds that overfishing exacerba...But they and other small forage fish like herring and anchovies aren't immune to the effects of commercial fishing. A new study looks at seven species over 25 years and finds that overfishing exacerbates natural boom-and-bust cycles of the fish, which are not only a food source for humans but for countless larger marine animals. Diagram exponential population growth and logistic population growth explain the circumstances under which each type of growth is expected.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/02%3A_The_Physical_EnvironmentPhotographed by the crew of Apollo 8 (probably by Bill Anders) the photo shows the Earth at a distance of about 30,000 km."Earthrise" is now one of the most reproduced space photos of all time, appear...Photographed by the crew of Apollo 8 (probably by Bill Anders) the photo shows the Earth at a distance of about 30,000 km."Earthrise" is now one of the most reproduced space photos of all time, appearing on US postage stamps, posters, and the cover of Time magazine in 1969. The ultimate source of energy driving the motion of the atmosphere and the ocean is radiant energy from the sun, which falls on different parts of the Earth in differing amounts.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/10%3A_EcosystemsHealthy coral reefs support commercial and subsistence fisheries as well as jobs and businesses through tourism and recreation. Local economies receive billions of dollars from visitors to reefs throu...Healthy coral reefs support commercial and subsistence fisheries as well as jobs and businesses through tourism and recreation. Local economies receive billions of dollars from visitors to reefs through diving tours, recreational fishing trips, hotels, restaurants, and other businesses based near reef ecosystems. Coral reef structures also buffer shorelines against 97 percent of the energy from waves, storms, and floods, helping to prevent loss of life, property damage, and erosion.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/04%3A_Natural_Selection_and_EvolutionThe Ukrainian-born American geneticist Theodosius Dobzhansky famously wrote that “nothing makes sense in biology except in the light of evolution.” (Dobzhnsky, 1964).He meant that the principle that a...The Ukrainian-born American geneticist Theodosius Dobzhansky famously wrote that “nothing makes sense in biology except in the light of evolution.” (Dobzhnsky, 1964).He meant that the principle that all life has evolved and diversified from a common ancestor is the foundation from which we understand all other questions in biology.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/10%3A_Ecosystems/10.03%3A_Biogeochemical_CyclesThe matter that makes up living organisms is conserved and recycled. The six most common elements associated with organic molecules—carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur—take a va...The matter that makes up living organisms is conserved and recycled. The six most common elements associated with organic molecules—carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur—take a variety of chemical forms and may exist for long periods in the atmosphere, on land, in water, or beneath the Earth’s surface. Geologic processes, such as weathering, erosion, water drainage, and the subduction of the continental plates, all play a role in this recycling of materials.
