
The Resilience of Ecological Systems
... species survived the blast and in the subsequent recovery process. If the eruption had occurred in midsummer, for example, succession would have taken much longer and the surviving set of species would have been very different. In May, lakes were still covered with a protective layer of ice and nume ...
... species survived the blast and in the subsequent recovery process. If the eruption had occurred in midsummer, for example, succession would have taken much longer and the surviving set of species would have been very different. In May, lakes were still covered with a protective layer of ice and nume ...
Biodiversity 5 Biodiversity_2
... Plants remove CO2 and produce O2 Bacteria convert atmospheric nitrogen into a form that plants can use Decomposers (fungi, bacteria, insects, scavengers) recycle dead and decaying organisms. Wetlands regulate the flow and quality of fresh ...
... Plants remove CO2 and produce O2 Bacteria convert atmospheric nitrogen into a form that plants can use Decomposers (fungi, bacteria, insects, scavengers) recycle dead and decaying organisms. Wetlands regulate the flow and quality of fresh ...
Chapter 18 Speciation
... • 1. Linnaeus separated species based on morphology, i.e., their traits differed; Darwin saw that similar species are related by common descent. 2. Ernst Mayr (1942) developed the biological species concept: a species is a group of actually or potentially interbreeding populations that are reproduct ...
... • 1. Linnaeus separated species based on morphology, i.e., their traits differed; Darwin saw that similar species are related by common descent. 2. Ernst Mayr (1942) developed the biological species concept: a species is a group of actually or potentially interbreeding populations that are reproduct ...
Ecology - Review
... A) It will remain relatively constant due to equal birth and death rates. B) It will decrease and then increase indefinitely. C) It will die out due to an increase in the mutation rate. D) It will increase until it exceeds carrying capacity 10. Ecological Succession Through ecological succession, al ...
... A) It will remain relatively constant due to equal birth and death rates. B) It will decrease and then increase indefinitely. C) It will die out due to an increase in the mutation rate. D) It will increase until it exceeds carrying capacity 10. Ecological Succession Through ecological succession, al ...
1.1.8 Case study: Bacterial reproduction 1.1.9 Mathematical corner
... We would now like to solve the differential equation we created for the E-coli bacteria growth, to find out what N (t) is. Unfortunately, the method we learned in the previous lectures for “time-only” equations cannot be used for autonomous equations. Luckily, in this simple example, one can actuall ...
... We would now like to solve the differential equation we created for the E-coli bacteria growth, to find out what N (t) is. Unfortunately, the method we learned in the previous lectures for “time-only” equations cannot be used for autonomous equations. Luckily, in this simple example, one can actuall ...
Chapter 8 Study Guide (7th Grade Science) Lesson 8.1 *An
... Community-all the different populations that live together in an area Ecosystem-the community of organisms, along with the nonliving environment *In ecosystems, the smallest level of organization is the organism, which belongs to a population that includes other members of its species. The populatio ...
... Community-all the different populations that live together in an area Ecosystem-the community of organisms, along with the nonliving environment *In ecosystems, the smallest level of organization is the organism, which belongs to a population that includes other members of its species. The populatio ...
Ecology
... evaporation and condensation. Evaporation moves water molecules into the air while precipitation returns it to Earth. Some water sinks into the ground (groundwater) while some runs along the surface of the ground until it enters a river or ...
... evaporation and condensation. Evaporation moves water molecules into the air while precipitation returns it to Earth. Some water sinks into the ground (groundwater) while some runs along the surface of the ground until it enters a river or ...
CHAPTER 9 POPULATION ECOLOGY Objectives
... 1. Three general patterns of population distribution occur in a habitat: clumping, uniform distribution, and random dispersion. Most species live in clumps or groups. a. Availability of resources varies from place to place. b. Living in groups offers better protection from predators. c. Some predato ...
... 1. Three general patterns of population distribution occur in a habitat: clumping, uniform distribution, and random dispersion. Most species live in clumps or groups. a. Availability of resources varies from place to place. b. Living in groups offers better protection from predators. c. Some predato ...
Unit1 Notes
... Chapter 1: An ecosystem is all the living and non-living things in a particular place. Biotic: the living things and once living things (dead) in the environment such as humans, trees or fish. Abiotic: the non-living things in the environment such as water, soil or air. Biologist: a scientist who st ...
... Chapter 1: An ecosystem is all the living and non-living things in a particular place. Biotic: the living things and once living things (dead) in the environment such as humans, trees or fish. Abiotic: the non-living things in the environment such as water, soil or air. Biologist: a scientist who st ...
Trophic Downgrading of Planet Earth REVIEW
... Ecological theory has long predicted that major shifts in ecosystems can follow changes in the abundance and distribution of apex consumers (9, 10). Three key elements of that theory provide the foundation for interpreting recurrent patterns suggestive of trophic downgrading in more recent empirical ...
... Ecological theory has long predicted that major shifts in ecosystems can follow changes in the abundance and distribution of apex consumers (9, 10). Three key elements of that theory provide the foundation for interpreting recurrent patterns suggestive of trophic downgrading in more recent empirical ...
Trophic Downgrading of Planet Earth REVIEW
... and ecological processes. The increase in kelp enhances the abundance of kelp forest fish (A) (70). Enhanced kelp production increases the amount of particulate organic carbon in coastal ocean waters, thus increasing the growth rate of filter-feeding mussels (B) (71). The presence or absence of sea ...
... and ecological processes. The increase in kelp enhances the abundance of kelp forest fish (A) (70). Enhanced kelp production increases the amount of particulate organic carbon in coastal ocean waters, thus increasing the growth rate of filter-feeding mussels (B) (71). The presence or absence of sea ...
Ecosim - IMBER
... − Sensitive parameter − check with sensitivity analysis, time series fitting, twomodel comparison, Bunfished/B0 , Fmax/M) Feeding time adjustment rate Predator effect on feeding time − 1.0 = stop feeding if predation risk high − 0.0 = ignore predation risk high Other mortality (top predators s ...
... − Sensitive parameter − check with sensitivity analysis, time series fitting, twomodel comparison, Bunfished/B0 , Fmax/M) Feeding time adjustment rate Predator effect on feeding time − 1.0 = stop feeding if predation risk high − 0.0 = ignore predation risk high Other mortality (top predators s ...
AP Ecology HW 2012 current
... G.4.4- Discuss the role of active management techniques in conservation G.4. 5 Discuss the advantages of in situ conservation of endangered species (terrestrial & aquatic reserves) G.4. 6- Outline the use of ex situ conservation measures, including captive breeding of animals, botanic gardens and se ...
... G.4.4- Discuss the role of active management techniques in conservation G.4. 5 Discuss the advantages of in situ conservation of endangered species (terrestrial & aquatic reserves) G.4. 6- Outline the use of ex situ conservation measures, including captive breeding of animals, botanic gardens and se ...
BSC 307 5-E Model Lesson Plan Form
... For the engagement part of the lesson the students will be completing the game of the rabbit vs. the environment. The point of this game is to show the students how changing the environment by either adding predators or taking away resources alters populations. Before starting the game students will ...
... For the engagement part of the lesson the students will be completing the game of the rabbit vs. the environment. The point of this game is to show the students how changing the environment by either adding predators or taking away resources alters populations. Before starting the game students will ...
Endangered Species Pamphlet
... Pick Your Organism By: _______________ Presentation Due: ________________ There are literally hundreds of endangered species throughout the United States. Below you can see how many animals are endangered in each of the 50 states. Endangered Species range in variety from producers to top carnivores, ...
... Pick Your Organism By: _______________ Presentation Due: ________________ There are literally hundreds of endangered species throughout the United States. Below you can see how many animals are endangered in each of the 50 states. Endangered Species range in variety from producers to top carnivores, ...
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.