• 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
genetic code table
genetic code table

... 3. The start codon for the sequence that when translated would give rise to a protein. Using the genetic code table provided on page 6, and starting with the start codon, translate the first 21 nucleotides into their appropriate amino acids. (4 marks) Amino acid ...
Recruitment and post-recruit immigration
Recruitment and post-recruit immigration

... Post-recruit immigrants contributed to changes in population size for 136 of the 150 species examined (Appendix 1). The mean percentage of the total number of immigrants (recruits and post-recruits) that were postrecruits, over all species, was 58%$6%. Forty one species had post-recruit immigration ...
Population size
Population size

... from exponential and logistic growth – Instead temporarily overshoots K because of reproductive time lag (the period needed for birth rate to fall and death rate to rise in response to resource ...
Chapter 3 Test - biology-with
Chapter 3 Test - biology-with

... b. the community. c. the ecosystem. d. individual populations. 6. Which of the following would be a biotic factor that could help shape an ecosystem? a. The centimetres of precipitation that a region receives each year. b. The intensity of sunlight reaching the forest floor. c. The amount of phospho ...
Document
Document

3.4.1 Chapter 3 Test.AST
3.4.1 Chapter 3 Test.AST

... b. the community. c. the ecosystem. d. individual populations. 6. Which of the following would be a biotic factor that could help shape an ecosystem? a. The centimetres of precipitation that a region receives each year. b. The intensity of sunlight reaching the forest floor. c. The amount of phospho ...
Modelling the extinction of Steller`s sea cow
Modelling the extinction of Steller`s sea cow

... 1741 and extinct by 1768, is one of the few megafaunal mammal species to have died out during the historical period. The species is traditionally considered to have been exterminated by ‘blitzkrieg’-style direct overharvesting for food, but it has also been proposed that its extinction resulted from ...
Ecology unit ch 2-5
Ecology unit ch 2-5

... Earth. Each of these plants or animals has its own inherent value and, in addition, may represent undiscovered benefits to humans such as drug or food sources. Whenever the entire population of a species is extinguished, the loss is enormous. But when a ‘keystone species’ is lost, the impact can be ...
Spider Ecophysiology - Preamble - Beck-Shop
Spider Ecophysiology - Preamble - Beck-Shop

... and ecosystem functioning. During their evolution of more than 300 million years, spiders developed and improved unique features, the combination of which is regarded as entry for their unrivalled success story. Among the key achievements of spiders at least four have to be mentioned. First, spiders ...
Sexratio meiotic drive and interspecific competition
Sexratio meiotic drive and interspecific competition

... number of females available. It is also assumed that males are not limiting (i.e. that when sex ratios are skewed towards females, the remaining males are able to fertilize all available eggs) and that there is no paternal parental investment. In our model, resource usage is equal for individuals of ...
Hui y McGeoch 2006
Hui y McGeoch 2006

... species starts with exactly one individual (Bramson et al., 1996; Durrett and Levin, 1996). In the random fission model, the new species gets a random proportion of individuals of the ancestral species (Hubbell, 2001). However, these studies do not consider underlying genetics and simply postulate t ...
1369-1376
1369-1376

... To find a positive relationship between competition and relatedness, it is necessary that evolutionary conservatism occurs in both traits and niches. When a positive correlation between phylogenetic distance and phenotypic dissimilarity does not exist because of rapid divergence or evolutionary conv ...
Early draft of multi-state SAFE Proposal
Early draft of multi-state SAFE Proposal

... Mixed-Grass Prairie Region described in the Oklahoma Comprehensive Wildlife Conservation Strategy, the mixed-grass prairie and the sand sagebrush/bluestem shrubland are two of the four highest priority plant communities. The restoration of these plant communities will provide new acres of habitat th ...
Faculty of Life and Environmental Sciences University of
Faculty of Life and Environmental Sciences University of

... Moral et al. 2005). For many plant species, this initial long-distance dispersal can occur using an animal vector. In areas with little seed pool, the presence or absence of this dispersal mechanism and its role as an ecological filter could significantly influence the species composition and chara ...
File
File

... Cystic fibrosis (CF) is a recessive genetic disorder. The recessive allele is shown as f and the dominant allele as F. * Sickle cell disease is another genetic disorder caused by a recessive allele (d). Explain the inheritance of sickle cell disease in a family with a heterozygous father and a ...
Saving the World`s Terrestrial Megafauna - Research
Saving the World`s Terrestrial Megafauna - Research

...  equest the help of individuals, governments, corporations, and nongovernmental organizations to stop practices that are harmful to these species and to actively engage in helping to reverse declines in megafauna. 8. S trive for increased awareness among the global public of the current megafauna ...
Phylogenetic diversity promotes ecosystem stability
Phylogenetic diversity promotes ecosystem stability

Dispersal of Plants and Animals to Oceanic Islands
Dispersal of Plants and Animals to Oceanic Islands

... mechanisms facilitating such dispersal. While many examples can be found of island plants with seeds or fruits that are clearly adapted to dispersal over barriers, in most island floras other plants have no such apparent mechanisms but nevertheless have also succeeded in crossing an oceanic barrier. ...
GLYPHOSATE RESISTANCE Background / Problem
GLYPHOSATE RESISTANCE Background / Problem

... Mutation Primary driver of genetic diversity Main source of new variants within a reproductively isolated species Mutation often ignored because rates assumed to be extremely low relative to magnitude of other effects Accumulation of mutations in population primarily a function of drift and sel ...
species diversity modulates predation
species diversity modulates predation

... the predatory flatworm Stenostomum virginianum (hereafter referred to as predator or Stenostomum) on its ciliate prey Paramecium aurelia (hereafter prey or Paramecium) in the absence and presence of a single non-prey species. Stenostomum usually detects potential prey from a very short distance and m ...
DENSITY AND SIZE CLASS DISTRIBUTION OF YELLOW
DENSITY AND SIZE CLASS DISTRIBUTION OF YELLOW

... from arriving at, and subsequently colonizing, barrier islands. Despite the high diversity of herpetofauna in the southeastern United States, only a small subset of those species persist on the myriad of barrier islands present just offshore. The Yellow-bellied Slider (Trachemys scripta scripta) is ...
Puma concolor
Puma concolor

... puma populations in Central and South America is largely unknown, and many are suspected to be in decline. ...
A conceptual framework for marine biodiversity and ecosystem
A conceptual framework for marine biodiversity and ecosystem

... ecosystems. Species survive and flourish because the ecosystems they inhabit do function, but it is also true that ecosystems (including the abiotic environment) function because the species that make up their biotic component thrive. The functioning of ecosystems is based on an efficient circulatio ...
Disentangling the effects of water and nutrients for studying the
Disentangling the effects of water and nutrients for studying the

... Methods: We manipulated water (water addition) and nutrient (fertilizer addition) availabilities in a full-factorial experiment that lasted from September 2005 to September 2006. The responses of plants to neighbours were assessed through transplanting six target species within each experimental plo ...
Environmental variability and population dynamics: do European
Environmental variability and population dynamics: do European

... fowl community in the Guadalquivir Marshes, southwest Spain. The ...
< 1 ... 186 187 188 189 190 191 192 193 194 ... 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