BIOLOGY 403: PRINCIPLES OF ECOLOGY (Niche and Species-Species Interactions)
... where a species lives, it also includes its role in the system (its “occupation / lifestyle”). • The Ecological Niche is a multidimensional (‘hypervolume’) concept that includes where an organism lives AND also includes what it does, how it does it, when it does it, etc. It is its total role in the ...
... where a species lives, it also includes its role in the system (its “occupation / lifestyle”). • The Ecological Niche is a multidimensional (‘hypervolume’) concept that includes where an organism lives AND also includes what it does, how it does it, when it does it, etc. It is its total role in the ...
Cell Jeopardy - Jutzi
... Species that occupy similar niches but live in different geographical regions ...
... Species that occupy similar niches but live in different geographical regions ...
Interactions and Ecosystems Study Guide 1. Describe the difference
... New species is introduced to an ecosystem that is stronger than the native species (original) with less enemies, therefore they quickly multiply and take over an ecosystem b. Resource Competition Competition occurs due to the limited amount of any one resource in an ecosystem at any given time. The ...
... New species is introduced to an ecosystem that is stronger than the native species (original) with less enemies, therefore they quickly multiply and take over an ecosystem b. Resource Competition Competition occurs due to the limited amount of any one resource in an ecosystem at any given time. The ...
Lecture 16 – Hybridization and Introgression An overlooked effect of
... An overlooked effect of invasive species occurs at the level of the genome. When species are introduced that are closely related to native species, they may hybridize with the natives. These genetic crosses can have many different outcomes. ...
... An overlooked effect of invasive species occurs at the level of the genome. When species are introduced that are closely related to native species, they may hybridize with the natives. These genetic crosses can have many different outcomes. ...
Lesson 5.3 Ecological Communities
... transferred as biomass from one trophic level to the next. ...
... transferred as biomass from one trophic level to the next. ...
Chapter 56 Guided Notes Concept 56.1: Human activities threaten
... exceeding the ability of populations of those species to rebound • Overexploitation by the fishing industry has greatly reduced populations of some game fish, such as Concept 56.4: Restoration ecology attempts to restore degraded ecosystems to a more natural state • Given enough time, biological com ...
... exceeding the ability of populations of those species to rebound • Overexploitation by the fishing industry has greatly reduced populations of some game fish, such as Concept 56.4: Restoration ecology attempts to restore degraded ecosystems to a more natural state • Given enough time, biological com ...
Ch 2 Principles of Ecology
... Ch 2 Principles of Ecology 2-1 Organisms and Their Environment A. What is Ecology? – the ________ ____ interactions among __________________ and their __________________. Ecologists use _____________________ and _____________________ observations to determine relationships between the ______________ ...
... Ch 2 Principles of Ecology 2-1 Organisms and Their Environment A. What is Ecology? – the ________ ____ interactions among __________________ and their __________________. Ecologists use _____________________ and _____________________ observations to determine relationships between the ______________ ...
Lecture 14 Speciation III & Adaptive Radiation
... Adaptive radiation is the evolution of ecological and phenotypic diversity within a rapidly multiplying lineage. It involves the differentiation of a single ancestor into an array of species that inhabit a variety of environments and that differ in… traits used to exploit those environments. ...
... Adaptive radiation is the evolution of ecological and phenotypic diversity within a rapidly multiplying lineage. It involves the differentiation of a single ancestor into an array of species that inhabit a variety of environments and that differ in… traits used to exploit those environments. ...
learning objectives
... total number of genetic characteristics), habitat diversity (the diversity of habitats in a given unit area), and species diversity. Species diversity, in turn, involves three ideas: species richness (the total number of species), species evenness (the relative abundance of species), and species dom ...
... total number of genetic characteristics), habitat diversity (the diversity of habitats in a given unit area), and species diversity. Species diversity, in turn, involves three ideas: species richness (the total number of species), species evenness (the relative abundance of species), and species dom ...
22-3 “Interactions Among Living Things”
... When a jellyfish paralyzes a tiny fish with its poisonous tentacles, the fish is the prey. ...
... When a jellyfish paralyzes a tiny fish with its poisonous tentacles, the fish is the prey. ...
3.1 What is Ecology
... the other. • the competitive exclusion principle: no two species can occupy the same niche at the same time. • dividing resources can be a “truce” in the competition for resources • ex: one spruce tree can provide for three different niches of warbler birds feeding on high, middle, and low branches ...
... the other. • the competitive exclusion principle: no two species can occupy the same niche at the same time. • dividing resources can be a “truce” in the competition for resources • ex: one spruce tree can provide for three different niches of warbler birds feeding on high, middle, and low branches ...
PosterA1_Review_v3
... During the last decades, populations of large herbivores have largely increased. Consequently, their pressure on forest vegetation has been exacerbated, reaching in some cases levels that reduced the diversity of forest ecosystem services. Assessing the balance between timber production and hunting ...
... During the last decades, populations of large herbivores have largely increased. Consequently, their pressure on forest vegetation has been exacerbated, reaching in some cases levels that reduced the diversity of forest ecosystem services. Assessing the balance between timber production and hunting ...
An Organism`s Niche • Niche - the unique position occupied by a
... – Species can compete even if they never come into direct contact with each other. – For example: Humans rarely interact with the insects that eat our food crops, but those insects are still competing with us for food. Adaptations to Competition • When two species with similar niches are placed toge ...
... – Species can compete even if they never come into direct contact with each other. – For example: Humans rarely interact with the insects that eat our food crops, but those insects are still competing with us for food. Adaptations to Competition • When two species with similar niches are placed toge ...
Weed Invasion in the South Okanagan
... Plant invasions are a serious global threat to natural and managed habitats. In British Columbia, over 20% of the vascular plants have been introduced. Weeds are adapted to a wide range of environmental conditions but occur most often in disturbed soils and depleted rangelands. They compromise land ...
... Plant invasions are a serious global threat to natural and managed habitats. In British Columbia, over 20% of the vascular plants have been introduced. Weeds are adapted to a wide range of environmental conditions but occur most often in disturbed soils and depleted rangelands. They compromise land ...
Ecological Succession - AppliedBiology
... Ecosystems constantly change. The process of one community replacing another as a result of changing abiotic and biotic factors is called ecological succession. How does soil form in Primary Succession? Primary succession is the establishment of a community in an area of bare rock that does not have ...
... Ecosystems constantly change. The process of one community replacing another as a result of changing abiotic and biotic factors is called ecological succession. How does soil form in Primary Succession? Primary succession is the establishment of a community in an area of bare rock that does not have ...
Ecology and Classification Unit VOCABULARY LIST
... carbon cycle (a biogeochemical cycle) carbon flux (Gt/year) vs. carbon pool (Gt) carrying capacity, K climate change community community interactions: compet’n, predation, symbiosis consumer (primary, secondary, etc.) coral reef d, per capita death rate Daphne Major, one of the Galapagos islands dec ...
... carbon cycle (a biogeochemical cycle) carbon flux (Gt/year) vs. carbon pool (Gt) carrying capacity, K climate change community community interactions: compet’n, predation, symbiosis consumer (primary, secondary, etc.) coral reef d, per capita death rate Daphne Major, one of the Galapagos islands dec ...
Create a Foldable. - Ms Szwarc`s Science Page
... Ecosystems constantly change. The process of one community replacing another as a result of changing abiotic and biotic factors is called ecological succession. How does soil form in Primary Succession? Primary succession is the establishment of a community in an area of bare rock that does not have ...
... Ecosystems constantly change. The process of one community replacing another as a result of changing abiotic and biotic factors is called ecological succession. How does soil form in Primary Succession? Primary succession is the establishment of a community in an area of bare rock that does not have ...
Speciation - WordPress.com
... offspring 2. On the island there were no other predators and plenty of prey. The prey included quite large animals, such as pigs, so the largest ‘dragons’ could be the most successful at capturing these. Directional Selection. They would then pass on alleles for large size to their offspring. Examin ...
... offspring 2. On the island there were no other predators and plenty of prey. The prey included quite large animals, such as pigs, so the largest ‘dragons’ could be the most successful at capturing these. Directional Selection. They would then pass on alleles for large size to their offspring. Examin ...
Introduction
... most diverse groups of animals, both in shape and habit. Among gastropods , land snails(subclass: Pulmonata) are one of the most numerous with almost 35000 described species of the world. The Phylum Mollusca is probably the third most important animal group after the arthropods and vertebrates(South ...
... most diverse groups of animals, both in shape and habit. Among gastropods , land snails(subclass: Pulmonata) are one of the most numerous with almost 35000 described species of the world. The Phylum Mollusca is probably the third most important animal group after the arthropods and vertebrates(South ...
Lecture 17: Biogeography
... Why are some species absent? • Limited dispersal ability • Extinction • Exclusion (competition, predation) ...
... Why are some species absent? • Limited dispersal ability • Extinction • Exclusion (competition, predation) ...
Mechanisms of Evolution
... their environment, the most fit individuals will tend to survive more often than others with less-desirable traits for their environment • Because they are more likely to survive, they are more likely to reproduce a lot (live longer) • This which will pass their better–suited traits on to future gen ...
... their environment, the most fit individuals will tend to survive more often than others with less-desirable traits for their environment • Because they are more likely to survive, they are more likely to reproduce a lot (live longer) • This which will pass their better–suited traits on to future gen ...
Document
... - different environments = natural selection = speciation HOW MUCH CHANGE IS ENOUGH? various - depends on what is changed TEMPO OF CHANGE: how fast gradualism vs. punctuated equilibrium ...
... - different environments = natural selection = speciation HOW MUCH CHANGE IS ENOUGH? various - depends on what is changed TEMPO OF CHANGE: how fast gradualism vs. punctuated equilibrium ...
Chapter 50 - An Introduction to Ecology and the Biosphere The
... Disturbance and Succession A. Primary Succession: When there is not even soil left (glacier, ...
... Disturbance and Succession A. Primary Succession: When there is not even soil left (glacier, ...
Ecological fitting
Ecological fitting is ""the process whereby organisms colonize and persist in novel environments, use novel resources or form novel associations with other species as a result of the suites of traits that they carry at the time they encounter the novel condition.” It can be understood as a situation in which a species' interactions with its biotic and abiotic environment seem to indicate a history of coevolution, when in actuality the relevant traits evolved in response to a different set of biotic and abiotic conditions. The simplest form of ecological fitting is resource tracking, in which an organism continues to exploit the same resources, but in a new host or environment. In this framework, the organism occupies a multidimensional operative environment defined by the conditions in which it can persist, similar to the idea of the Hutchinsonian niche. In this case, a species can colonize new environments (e.g. an area with the same temperature and water regime) and/or form new species interactions (e.g. a parasite infecting a new host) which can lead to the misinterpretation of the relationship as coevolution, although the organism has not evolved and is continuing to exploit the same resources it always has. The more strict definition of ecological fitting requires that a species encounter an environment or host outside of its original operative environment and obtain realized fitness based on traits developed in previous environments that are now co-opted for a new purpose. This strict form of ecological fitting can also be expressed either as colonization of new habitat or the formation of new species interactions.