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Biological Diversity
... Factors in the environment determine or ‘select’ which individuals within a species will survive. If they live long enough to reproduce, those individuals with adaptations for survival will pass these characteristics on to their offspring. Q: Give an example of how variability can help survival of t ...
... Factors in the environment determine or ‘select’ which individuals within a species will survive. If they live long enough to reproduce, those individuals with adaptations for survival will pass these characteristics on to their offspring. Q: Give an example of how variability can help survival of t ...
Chapter 3: Species Populations, Interactions and Communities
... Ecological succession - the process by which organisms occupy a site and gradually change environmental conditions by creating soil, shelter, shade, or increasing humidity • Primary succession - occurs when a community begins to develop on a site previously unoccupied by living organisms • Secondary ...
... Ecological succession - the process by which organisms occupy a site and gradually change environmental conditions by creating soil, shelter, shade, or increasing humidity • Primary succession - occurs when a community begins to develop on a site previously unoccupied by living organisms • Secondary ...
Austin Brown Interactions Within Communities Definitions
... Remora and barnacles hitch a ride on sharks and whales to new food sources Parasitism ...
... Remora and barnacles hitch a ride on sharks and whales to new food sources Parasitism ...
complete table of learning goals
... Adaptation requires both variability and selection pressure. Given an understanding of the needs of a given organism, students should be able to identify particular physical traits that would help it to survive in a given environment. Students should be able to reason backward from traits to the env ...
... Adaptation requires both variability and selection pressure. Given an understanding of the needs of a given organism, students should be able to identify particular physical traits that would help it to survive in a given environment. Students should be able to reason backward from traits to the env ...
Species richness
... • Disturbances are events like fire, weather, or human activities that can alter communities. – Some are routine. ...
... • Disturbances are events like fire, weather, or human activities that can alter communities. – Some are routine. ...
Microsoft Word - Activity4.doc
... ______ As a result of resource partitioning, certain characteristics may enable individuals to obtain resources in their partitions more successfully. Selection of these characteristics (or characters) reduces competition with individual in other partitions and leads to a divergence of features. ___ ...
... ______ As a result of resource partitioning, certain characteristics may enable individuals to obtain resources in their partitions more successfully. Selection of these characteristics (or characters) reduces competition with individual in other partitions and leads to a divergence of features. ___ ...
Ecological Concepts
... Prey species benefits by eliminating non-adaptive genes from the gene pool. Poorly adapted predators are less likely to obtain food and thus pass on non-adaptive genes. ...
... Prey species benefits by eliminating non-adaptive genes from the gene pool. Poorly adapted predators are less likely to obtain food and thus pass on non-adaptive genes. ...
File
... 21.1 Organisms and Their Environment Directions: Read pages 475 through 476 to help you answer the questions that follow. ...
... 21.1 Organisms and Their Environment Directions: Read pages 475 through 476 to help you answer the questions that follow. ...
CHAPTER 13
... • General patterns and evolution of the vegetation • Adaptations to fire • Relationship between time since fire and vegetation structure © Oxford University Press, 2008. All rights reserved. ...
... • General patterns and evolution of the vegetation • Adaptations to fire • Relationship between time since fire and vegetation structure © Oxford University Press, 2008. All rights reserved. ...
Chapter 4 Notes
... explains how life on earth changes over time through changes in the genes of populations. • Concept 4-1B Populations evolve when genes mutate and give some individuals genetic traits that enhance their abilities to survive and to produce offspring with these traits (natural selection). ...
... explains how life on earth changes over time through changes in the genes of populations. • Concept 4-1B Populations evolve when genes mutate and give some individuals genetic traits that enhance their abilities to survive and to produce offspring with these traits (natural selection). ...
File
... Habitat- the space that the organism inhabits Niche- functional role an organism has in its surroundings Genes- distinct pieces of DNA that determine an individual’s characteristics Population- all the organisms found within a specific geographic region Species- population of all the organisms poten ...
... Habitat- the space that the organism inhabits Niche- functional role an organism has in its surroundings Genes- distinct pieces of DNA that determine an individual’s characteristics Population- all the organisms found within a specific geographic region Species- population of all the organisms poten ...
Biodiversity, Species Interactions, and Population Control
... In some interactions, both species benefit • Mutualism occurs when two species behave in ways that benefit both by providing each with food, shelter, or some other resource. • Examples of mutualism include birds that ride on the backs of large animals, like African buffalo, and remove pests, and th ...
... In some interactions, both species benefit • Mutualism occurs when two species behave in ways that benefit both by providing each with food, shelter, or some other resource. • Examples of mutualism include birds that ride on the backs of large animals, like African buffalo, and remove pests, and th ...
Macroevolution - Hatboro
... banana bunch eventually washes up on an island off the coast of the mainland. The fruit flies mature and emerge from their slimy nursery onto the lonely island. The two portions of the population, mainland and island, are now too far apart for gene flow to unite them. At this point, speciation has n ...
... banana bunch eventually washes up on an island off the coast of the mainland. The fruit flies mature and emerge from their slimy nursery onto the lonely island. The two portions of the population, mainland and island, are now too far apart for gene flow to unite them. At this point, speciation has n ...
General Review for the Quiz
... 45. Joe Ecologist is studying what controls community structure. He concludes that ________________ and __________________ are the key processes affecting community structure. 46. To truly understand this, Joe studies the coral reef. He removes a species of squid that has the highest biomass in the ...
... 45. Joe Ecologist is studying what controls community structure. He concludes that ________________ and __________________ are the key processes affecting community structure. 46. To truly understand this, Joe studies the coral reef. He removes a species of squid that has the highest biomass in the ...
Species concepts
... The differentiation of populations within a common geographic area into species Species that occur together: Are distinctive entities Are phenotypically different Utilize different parts of the habitat Behave separately Subspecies Within a single species, individuals in populations tha ...
... The differentiation of populations within a common geographic area into species Species that occur together: Are distinctive entities Are phenotypically different Utilize different parts of the habitat Behave separately Subspecies Within a single species, individuals in populations tha ...
Chapter 6
... Central Case: Black and White, and Spread All Over: Zebra Mussels Invade the Great Lakes • The zebra mussel—a native of western Asia and eastern Europe—was discovered in the Great Lakes in 1988. • Encountering none of the species that limited their population in the Old World, they spread across 40% ...
... Central Case: Black and White, and Spread All Over: Zebra Mussels Invade the Great Lakes • The zebra mussel—a native of western Asia and eastern Europe—was discovered in the Great Lakes in 1988. • Encountering none of the species that limited their population in the Old World, they spread across 40% ...
ATMOS 397G Presentation
... Stable levels of soil organic matter Biogeochemical mass balance(inputs of nutrients to an ecosystem are greater than or equal to losses) Internal nutrient cycling(more nutrients are made available by decomposition than from new inputs to the system) ...
... Stable levels of soil organic matter Biogeochemical mass balance(inputs of nutrients to an ecosystem are greater than or equal to losses) Internal nutrient cycling(more nutrients are made available by decomposition than from new inputs to the system) ...
NCWMA Qtly July.2012 - Northwoods Cooperative Weed
... dunes, helping to create beach habitat that plovers favor for nesting. The encroachment of winged pigweed, native to areas west of the Mississippi River, has the potential to transform this sensitive habitat. Pigweed is a prolific seed producer that forms tumbleweed-like bushes (left). Each plant ca ...
... dunes, helping to create beach habitat that plovers favor for nesting. The encroachment of winged pigweed, native to areas west of the Mississippi River, has the potential to transform this sensitive habitat. Pigweed is a prolific seed producer that forms tumbleweed-like bushes (left). Each plant ca ...
Ecology
... unit area or volume Population distribution: spacing of members within a population in a specific area Boundary of a population: natural or arbitrary ...
... unit area or volume Population distribution: spacing of members within a population in a specific area Boundary of a population: natural or arbitrary ...
Chapter 4 Notes
... B. Density – dependent factors – a limiting factor that depends on the population size 1. Examples: competition, predation, parasitism & disease 2. Won’t affect small, scattered populations - only affects large populations C. Density – independent factors – a limiting factor that affects all popula ...
... B. Density – dependent factors – a limiting factor that depends on the population size 1. Examples: competition, predation, parasitism & disease 2. Won’t affect small, scattered populations - only affects large populations C. Density – independent factors – a limiting factor that affects all popula ...
EOC ECOLOGY REVIEW
... 10. List the organization of living things from smallest to largest AND define: species, organism, population, ecosystem, biosphere, biome, community a. _____________________:________________________________________________________ b. _____________________:___________________________________________ ...
... 10. List the organization of living things from smallest to largest AND define: species, organism, population, ecosystem, biosphere, biome, community a. _____________________:________________________________________________________ b. _____________________:___________________________________________ ...
Biodiversity Quiz - hrsbstaff.ednet.ns.ca
... ____ 12. The countries with the most species of vascular plants are located in Central and South America and in Southeast Asia. ____ 13. Coral reefs are as rich in biodiversity as tropical forests. ____ 14. Many islands are home to species found nowhere else. ____ 15. Fewer than 100 species currentl ...
... ____ 12. The countries with the most species of vascular plants are located in Central and South America and in Southeast Asia. ____ 13. Coral reefs are as rich in biodiversity as tropical forests. ____ 14. Many islands are home to species found nowhere else. ____ 15. Fewer than 100 species currentl ...
Handout #10 revised
... The Cretaceous extinction, which included the dinosaurs • May have been caused by an asteroid •a collision between the earth and a gigantic asteroid rich in iridium •the force of thousands of atomic bombs •A dust cloud high into the sky. •This cloud would block out nearly all of the sunlight, creat ...
... The Cretaceous extinction, which included the dinosaurs • May have been caused by an asteroid •a collision between the earth and a gigantic asteroid rich in iridium •the force of thousands of atomic bombs •A dust cloud high into the sky. •This cloud would block out nearly all of the sunlight, creat ...
Introduced species
![](https://commons.wikimedia.org/wiki/Special:FilePath/Melilotus_alba_bgiu.jpg?width=300)
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.