• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
15 Status Symbols, Ecosystems and Sustainability
15 Status Symbols, Ecosystems and Sustainability

... ecologically degrading? From ivory to rice cultivation in semi arid regions, examples abound of goods so highly desired, even when functional substitutes exist, as to generate ecologically unsustainable production levels that lead to extinctions and depletion of precious resources. While the reasons ...
Honors Biology - WordPress.com
Honors Biology - WordPress.com

... The evolutionary basis of homology is perhaps even more severely damaged by the discovery that apparently homologous structures are specified by quiet different genes in different species…With the demise of any sort of straightforward explanation for homology one of the major pillars of evolution th ...
Tasmanian Bettong (Bettongia gaimardi) - accessible
Tasmanian Bettong (Bettongia gaimardi) - accessible

... National Park could provide a perspective of total habitat management to the park's vegetation management program. However, it will probably take over a decade for the ground stratum to be restored close enough to natural conditions before such an introduction could be justified. If reintroduction w ...
FL-HS eMammal Activity 3
FL-HS eMammal Activity 3

... these species and habitat do you see? Are there differences? Have students share what they see. Then, as class come up with two research questions using species richness (and/or Shannon/Simpson Indices) and habitat type [i.e. direct them towards some variation of What is the difference in species ri ...
File
File

... differing size in large ecosystems or communities. • Leads to sharp edges as seen in forest and open field or wider more diverse ecotones. • Result of the differences in physical structure and properties at ecotones can lead to an edge effect. ...
PPT
PPT

... Definition of Evolution Changes over time of the proportion of individuals differing genetically in one or more traits These changes can occur by: • Changes in frequency of alleles and/or phenotypes in a ...
apes ch 8 - La Habra High School
apes ch 8 - La Habra High School

Ecology
Ecology

... Commensalism is the interaction of two organisms where one species benefits and the other is not affected ...
B 262, F 2002 Name
B 262, F 2002 Name

... 1. A population of 10,000 rabbits is growing logistically and has a yearly intrinsic rate of increase of 0.2. The carrying capacity is 100,000. What is the size of this population after one year? After two years? (Be sure to write down any equations you used.) (6%) ...
Variation Lesson
Variation Lesson

... discussed with regards to the several “species” of predator. For example, the predator populations exhibit little variation, thus natural selection cannot act and the populations of plastic knives and chopsticks will probably go extinct. While the tweezers and spoons, which are well adapted, and wil ...
question #1 - adamsmscience
question #1 - adamsmscience

... Letters A through J represent different species of organisms. The vertical distances between the dotted lines represent long periods of time in which major environmental changes occurred. Which species appears to have been most successful in surviving changes in the environment over time? ...
Fish Fauna of the Great Lakes
Fish Fauna of the Great Lakes

... – Time: long evolutionary record of coral reef systems – Productivity: high productivity of coral reef systems – Temperature: rapid growth rates, short generation times of coral reef systems ...
9. Competition
9. Competition

... of competition from the grey squirrel. The grey squirrel is not native to the British Isles but was introduced from North America towards the end of the 20th century. It is larger and more aggressive than the red squirrel. It is not clear exactly how grey squirrels have caused the decline of red squ ...
population size - Mrs. Brenner`s Biology
population size - Mrs. Brenner`s Biology

... • In response to such factors, many species show a characteristic crash in population size • Environments are always changing, and most populations can adapt to a certain amount of change • Populations often grow and shrink in response to such changes • Major upsets in an ecosystem can lead to long ...
population size
population size

... Larval (A) and adult (B) forms of the cabbage white butterfly, Pieris rapae. This insect was introduced to Quebec from Europe in the mid-1850s, and it is now found throughout much of North America. ...
File
File

... Small fish feed on algae Larger fish eat smaller fish Hunting birds or humans eat fish Concentration of pesticides grows with each organism ...
PowerPoint 簡報
PowerPoint 簡報

... After we have joined two species in a subtree we have to compute the distances from every other node to the new subtree. We do this with a simple average of distances: ...
Classification - Cengage Learning
Classification - Cengage Learning

... The minimum biological category we would like to define in fossil primate samples is the species. Variations • Intraspecific - Variation is accounted for by individual, age, and sex differences seen within every biological species • Interspecific - Variation represents differences between reproduct ...
1 www.protectingusnow.org Speaker notes for Invasive Species and
1 www.protectingusnow.org Speaker notes for Invasive Species and

... when crossing the ocean. In the past, things like bricks and boxes of soil were used as ballast. As a result, this invasive species has also been introduced to Australia, New Zealand, and some of the Caribbean Islands. The insects vary in size from 1/16 inch to almost 1/4 inch and are mostly red wit ...
Chapter 4 Interactions of Life Review
Chapter 4 Interactions of Life Review

... _P_12. A symbiotic relationship in which one partner benefits but the other in not affected. _Q_13. All of the organisms in an area and the nonliving features of their environment. _J_14. The study of interactions among organisms and their environment. _L_15. A close relationship between species. _C ...
Why traits? - Emodnet Biology
Why traits? - Emodnet Biology

... Distinct from “population” traits that vary within a species ...
Fish Introductions into Southern Florida: Species, pathways, and
Fish Introductions into Southern Florida: Species, pathways, and

... can be done to eliminate or even control them at this time. Control may be effective in local situations to meet specific management objectives. Even then, it will have to be a sustained effort because of the pool of recruits that exists in the canal reservoirs. Unlike the research and management fu ...
Intro to Ecology
Intro to Ecology

Types of competition
Types of competition

... • When grown in mixture, each species overgrew and shaded the other on its preferred soil type. • Tansley concluded that each species was at a disadvantage in competition when grown on the other soil type; this helped explain the observed distributions of the two species in nature. ...
Species Packing in Dusky Salamanders
Species Packing in Dusky Salamanders

... primarily through the moist skin and mouth cavity. The lungless condition is thought to be an adaptation to mountain streams. The lung created buoyancy and made them more likely to be washed downstream from their territories; floating may also have made them more susceptible to predation. These sal ...
< 1 ... 328 329 330 331 332 333 334 335 336 ... 523 >

Molecular ecology

Molecular ecology is a field of evolutionary biology that is concerned with applying molecular population genetics, molecular phylogenetics, and more recently genomics to traditional ecological questions (e.g., species diagnosis, conservation and assessment of biodiversity, species-area relationships, and many questions in behavioral ecology). It is virtually synonymous with the field of ""Ecological Genetics"" as pioneered by Theodosius Dobzhansky, E. B. Ford, Godfrey M. Hewitt and others. These fields are united in their attempt to study genetic-based questions ""out in the field"" as opposed to the laboratory. Molecular ecology is related to the field of Conservation genetics.Methods frequently include using microsatellites to determine gene flow and hybridization between populations. The development of molecular ecology is also closely related to the use of DNA microarrays, which allows for the simultaneous analysis of the expression of thousands of different genes. Quantitative PCR may also be used to analyze gene expression as a result of changes in environmental conditions or different response by differently adapted individuals.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report