UNIT 2: Ecology and Human Impact 2A: ECOLOGY The Big Picture
... Science is a body of knowledge and skills acquired through systematic experimentation and observation to describe natural phenomena; or, more simply, it is a “way of knowing”. The process of science helps biologists investigate how nature works at all levels, from the molecules in cells to the biosp ...
... Science is a body of knowledge and skills acquired through systematic experimentation and observation to describe natural phenomena; or, more simply, it is a “way of knowing”. The process of science helps biologists investigate how nature works at all levels, from the molecules in cells to the biosp ...
Population Growth
... • At stationary phase, population is in dynamic equilibrium, it will fluctuate around the carrying capacity of its habitat. • carrying capacity changes in response to environmental conditions – resource supply, predation, limited space, disease etc. ...
... • At stationary phase, population is in dynamic equilibrium, it will fluctuate around the carrying capacity of its habitat. • carrying capacity changes in response to environmental conditions – resource supply, predation, limited space, disease etc. ...
Ecosystems and communities Ecology
... can photosynthesize here (0 to 200 meters) • Aphotic Zone – Sunlight can not penetrate due to depth (200 meters and deeper) • Other zones based on depth and distance from shore: intertidal zone(close to shore), ...
... can photosynthesize here (0 to 200 meters) • Aphotic Zone – Sunlight can not penetrate due to depth (200 meters and deeper) • Other zones based on depth and distance from shore: intertidal zone(close to shore), ...
Reindeer Island Ecological Reserve
... great blue heron, spruce grouse, Wilson’s warbler, and broad winged hawk. Mammal species include coyote, fox, wolf, lynx, snowshoe hare and re-back vole. The Reindeer Island Ecological Reserve will be maintained for the preservation and protection of the raised peat bogs, variety of ecosystems on an ...
... great blue heron, spruce grouse, Wilson’s warbler, and broad winged hawk. Mammal species include coyote, fox, wolf, lynx, snowshoe hare and re-back vole. The Reindeer Island Ecological Reserve will be maintained for the preservation and protection of the raised peat bogs, variety of ecosystems on an ...
Ecology - St. Ambrose School
... Habitat vs. Niche Niche - The role a species plays in a community; its total way of life ...
... Habitat vs. Niche Niche - The role a species plays in a community; its total way of life ...
Changes to the Environment
... Changes to the Environment Role of Humans • Clearing land • Destroys ecosystems • Removes trees that absorb CO2 • Coal-burning machines • Releases CO2 • Increased CO2 • Greenhouse effect • Global climate change • Loss of biodiversity ...
... Changes to the Environment Role of Humans • Clearing land • Destroys ecosystems • Removes trees that absorb CO2 • Coal-burning machines • Releases CO2 • Increased CO2 • Greenhouse effect • Global climate change • Loss of biodiversity ...
Benefits of Marine Protected Areas
... outside the boundaries- or spillover. The amount of spillover depends on the particular species and will change based on the extend of their home range, or how far they will travel in a lifetime. Through spillover, MPA benefits will not only be seen inside the boundaries, but also exported outside M ...
... outside the boundaries- or spillover. The amount of spillover depends on the particular species and will change based on the extend of their home range, or how far they will travel in a lifetime. Through spillover, MPA benefits will not only be seen inside the boundaries, but also exported outside M ...
Welcome to Class
... Def. – any factor that depends on the number of organisms • Biotic factors – Predation, disease, parasites, competition, over crowding ...
... Def. – any factor that depends on the number of organisms • Biotic factors – Predation, disease, parasites, competition, over crowding ...
Slide 1 - Amazon S3
... DEFINED BY WEBSTER(ecological succession): The gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established . PRIMARY: the biological and ecological process of eradicating all forms of life due to ...
... DEFINED BY WEBSTER(ecological succession): The gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established . PRIMARY: the biological and ecological process of eradicating all forms of life due to ...
Introduction to population growth models
... 1. (10 minutes): Using the PowerPoint presentation, introduce the charismatic spoonbill, including important aspects of its biology and ecology (slides 1-4). 2. (5 minutes): Using the PowerPoint presentation, introduce the discipline of population biology (slide 5). a. Give students time to define t ...
... 1. (10 minutes): Using the PowerPoint presentation, introduce the charismatic spoonbill, including important aspects of its biology and ecology (slides 1-4). 2. (5 minutes): Using the PowerPoint presentation, introduce the discipline of population biology (slide 5). a. Give students time to define t ...
Evolution
... Hutton and Darwin proposed that geological processes were gradual and took many years to change, but they believed these processes are occurring today. True/False Lamarck believed that evolution occurred through the inheritance of acquired characteristics. Describe the difference between artificial ...
... Hutton and Darwin proposed that geological processes were gradual and took many years to change, but they believed these processes are occurring today. True/False Lamarck believed that evolution occurred through the inheritance of acquired characteristics. Describe the difference between artificial ...
Density-independent
... Parasites and the host often develop some sort of balance with each other • If the parasite kills the host, food will be unavailable for offspring. • If parasite and host have lived together for a long time, the host is likely to have developed some resistance. • If parasite is introduced into a new ...
... Parasites and the host often develop some sort of balance with each other • If the parasite kills the host, food will be unavailable for offspring. • If parasite and host have lived together for a long time, the host is likely to have developed some resistance. • If parasite is introduced into a new ...
11.17-Community-Interactions-and-Succession
... Niche = an organism’s role in an ecosystem Ex: mushrooms are decomposers living on tree stumps Analogy: baseball players can be pitchers, catchers, shortstops, etc. ...
... Niche = an organism’s role in an ecosystem Ex: mushrooms are decomposers living on tree stumps Analogy: baseball players can be pitchers, catchers, shortstops, etc. ...
A. Competition and predation
... pumpkinseed both prefer benthos, but bullhead more efficient Forces pumpkinseed to switch to zooplankton ...
... pumpkinseed both prefer benthos, but bullhead more efficient Forces pumpkinseed to switch to zooplankton ...
population
... • Deaths occur more quickly in a crowded population than in a sparse population. • A certain proportion of a population may die regardless of the population’s density. ...
... • Deaths occur more quickly in a crowded population than in a sparse population. • A certain proportion of a population may die regardless of the population’s density. ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.