Population_ppt 1
... puppies, there will be 6 dogs in one generation. If each pair in that generation has 6 puppies, there will be 18 dogs in the next generation. The following generation will have 54 dogs and so on. If the number of dogs is plotted versus time on a graph, the graph will have the shape as shown ...
... puppies, there will be 6 dogs in one generation. If each pair in that generation has 6 puppies, there will be 18 dogs in the next generation. The following generation will have 54 dogs and so on. If the number of dogs is plotted versus time on a graph, the graph will have the shape as shown ...
Brown Thornbill (King Island) - Australia`s Threatened Birds
... ing population will also be vulnerable to minor changes in mortality, such as from predation by feral cats Felis catus, Black Rat Rattus rattus or a range of native mammals, birds or reptiles, tick infestation (Schodde and Mason 1999) or inbreeding. Historically land clearance has removed most of th ...
... ing population will also be vulnerable to minor changes in mortality, such as from predation by feral cats Felis catus, Black Rat Rattus rattus or a range of native mammals, birds or reptiles, tick infestation (Schodde and Mason 1999) or inbreeding. Historically land clearance has removed most of th ...
1.4 Competition
... • Competition is a biotic factor as it involves interactions between organisms. • Where two or more individuals share any resource (e.g. Light, food, space, oxygen) that is insufficient to satisfy all their requirements fully, then competition results. • There are two types of competition: 1) Intras ...
... • Competition is a biotic factor as it involves interactions between organisms. • Where two or more individuals share any resource (e.g. Light, food, space, oxygen) that is insufficient to satisfy all their requirements fully, then competition results. • There are two types of competition: 1) Intras ...
Ecosystem Ecology
... = gross primary productivity – rate of respiration in producers - is the rate at which biomass accumulates - is expressed as: energy/area/year (kcal/m2/y) mass/area/year (g/m2/y) ...
... = gross primary productivity – rate of respiration in producers - is the rate at which biomass accumulates - is expressed as: energy/area/year (kcal/m2/y) mass/area/year (g/m2/y) ...
The Chicago School
... • Why are the crime rates stable in the zone of transition? 1. Cultural Transmission of Values • Roots of Sutherland’s Differential Association (micro) and Subculture of violence theories ...
... • Why are the crime rates stable in the zone of transition? 1. Cultural Transmission of Values • Roots of Sutherland’s Differential Association (micro) and Subculture of violence theories ...
Ecology
... Ex. Mice living in a meadow or pine trees in a forest Species are a group of organisms that can mate to produce offspring that can produce more offspring Ex. Brown pelican or human ...
... Ex. Mice living in a meadow or pine trees in a forest Species are a group of organisms that can mate to produce offspring that can produce more offspring Ex. Brown pelican or human ...
Understanding Populations Section 2 Species Interactions
... • Competition is the relationship between two species (or individuals) in which both species (or individuals) attempt to use the same limited resource such that both are negatively affected by the relationship. • Members of the same species must compete with each other because they require the same ...
... • Competition is the relationship between two species (or individuals) in which both species (or individuals) attempt to use the same limited resource such that both are negatively affected by the relationship. • Members of the same species must compete with each other because they require the same ...
ecology intro notes
... organisms inhabiting the Earth • Abiotic factors- nonliving parts of the environment (i.e. temperature, soil, light, moisture, air currents) ...
... organisms inhabiting the Earth • Abiotic factors- nonliving parts of the environment (i.e. temperature, soil, light, moisture, air currents) ...
Population Biology
... Capacity for growth “r”=intrinsic rate of increase if the population has unlimited resources Most populations grow at rate less than this ...
... Capacity for growth “r”=intrinsic rate of increase if the population has unlimited resources Most populations grow at rate less than this ...
Linking community and ecosystem dynamics through spatial
... The challenges of ecology as a science are increasingly daunting. They include addressing more complex dynamics, more demanding issues (e.g. ecosystem functioning, resilience) and patterns and processes at larger scales. Tackling these challenges has been difficult within the traditional frameworks ...
... The challenges of ecology as a science are increasingly daunting. They include addressing more complex dynamics, more demanding issues (e.g. ecosystem functioning, resilience) and patterns and processes at larger scales. Tackling these challenges has been difficult within the traditional frameworks ...
File - BIO271: Field Ecology at Fontbonne, Spring 2014
... 1. A species may shift its geographical distribution with climate change; it may adapt to the new environmental conditions; or do both. Large and rapid climate change may lead to extinction. 2. A combination of physical and biological factors may restrict a distribution more than would physical fact ...
... 1. A species may shift its geographical distribution with climate change; it may adapt to the new environmental conditions; or do both. Large and rapid climate change may lead to extinction. 2. A combination of physical and biological factors may restrict a distribution more than would physical fact ...
Basic characteristics of Populations - Powerpoint for Sept. 25.
... conditions that permits the survival and reproduction of an organism - many resources and conditions interact to form the niche. • The realized niche - the portion of the fundamental niche actually occupied by the species when restricted by other organisms - restricted by competition, predation, par ...
... conditions that permits the survival and reproduction of an organism - many resources and conditions interact to form the niche. • The realized niche - the portion of the fundamental niche actually occupied by the species when restricted by other organisms - restricted by competition, predation, par ...
Name:
... associations are called symbiosis ("living together"). There are three types of symbiotic relationships: parasitism, commensalism, and mutualism. Use the websites below to learn more about these interactions. Go to: https://www.youtube.com/watch?v=zSmL2F1t81Q Watch a video that introduces symbiosis. ...
... associations are called symbiosis ("living together"). There are three types of symbiotic relationships: parasitism, commensalism, and mutualism. Use the websites below to learn more about these interactions. Go to: https://www.youtube.com/watch?v=zSmL2F1t81Q Watch a video that introduces symbiosis. ...
Causes behind insect folivory patterns in latitudinal gradients
... that during the last decades non-tree plants showed a stronger phenological shift in spring than trees, whereas invertebrates and particularly birds showed a stronger phenological response than plants. Although broad-scale comparisons over many systems and taxonomical groups give important insights ...
... that during the last decades non-tree plants showed a stronger phenological shift in spring than trees, whereas invertebrates and particularly birds showed a stronger phenological response than plants. Although broad-scale comparisons over many systems and taxonomical groups give important insights ...
IMCC Yr12 Integrated Science Course Outline
... environmental impacts, and to design action for sustainability biodiversity includes the diversity of genetics, species and ecosystems; biodiversity changes naturally over time, and varies due to differences in location ...
... environmental impacts, and to design action for sustainability biodiversity includes the diversity of genetics, species and ecosystems; biodiversity changes naturally over time, and varies due to differences in location ...
Predator-Prey Relationships
... extinguish their prey, and then starve. In nature, at least three factors are likely to promote stability and coexistence. Due to spatial heterogeneity in the environment, some prey are likely to persist in local "pockets" where they escape detection. Once predators decline, they prey can fuel a new ...
... extinguish their prey, and then starve. In nature, at least three factors are likely to promote stability and coexistence. Due to spatial heterogeneity in the environment, some prey are likely to persist in local "pockets" where they escape detection. Once predators decline, they prey can fuel a new ...
trophic level
... E. Ecological Pyramids – diagrams that show the relative amounts of energy or matter contained within each trophic level in a food chain or food web. 1. Energy Pyramid – there is no limit to the # of trophic levels that a food chain can support; however, there is a slight drawback. Only part of t ...
... E. Ecological Pyramids – diagrams that show the relative amounts of energy or matter contained within each trophic level in a food chain or food web. 1. Energy Pyramid – there is no limit to the # of trophic levels that a food chain can support; however, there is a slight drawback. Only part of t ...
Stochastic colonization and extinction of microbial
... C CD YC FC C C top predator dt 1 C C F Colonization ...
... C CD YC FC C C top predator dt 1 C C F Colonization ...
4-2 ch5
... Contrast predation and parasitism. Contrast endo and ectoparasites. Contrast intra and interspecific competition Contrast commensalism and mutualism. The relationship between fire ants and native ant populations is best described as (intra, inter) specific. Ch.5-2: Symbiosis Goal for t ...
... Contrast predation and parasitism. Contrast endo and ectoparasites. Contrast intra and interspecific competition Contrast commensalism and mutualism. The relationship between fire ants and native ant populations is best described as (intra, inter) specific. Ch.5-2: Symbiosis Goal for t ...
Chapter 3
... produce fertile offspring. - population – group of individuals of the same species that live in the same area - community – different populations that live together in defined area - ecosystem – collection of all the organisms that live in a particular place, together with their non-living environme ...
... produce fertile offspring. - population – group of individuals of the same species that live in the same area - community – different populations that live together in defined area - ecosystem – collection of all the organisms that live in a particular place, together with their non-living environme ...
Version o1 o2
... 21.When a jellyfish paralyzes a tiny fish with its poisonous tentacles, the fish is the A. predator. ...
... 21.When a jellyfish paralyzes a tiny fish with its poisonous tentacles, the fish is the A. predator. ...
Conservation biology
... Majority of extinctions have occurred on islands 85 species of mammals; 60% lived on islands Why are islands so vulnerable ? Evolved in the absence of predators Humans introduced competitors, diseases Island populations are usually small which increases their risk for extinction ...
... Majority of extinctions have occurred on islands 85 species of mammals; 60% lived on islands Why are islands so vulnerable ? Evolved in the absence of predators Humans introduced competitors, diseases Island populations are usually small which increases their risk for extinction ...
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.