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Notes - Succession
Notes - Succession

...  Resilience = a community changes in response to a disturbance, but later returns to its original state ...
Speciation Notes
Speciation Notes

... to the mainland could mate and produce healthy offspring with the mainland flies. ...
Ecology is study of interactions between
Ecology is study of interactions between

Chapter 18 Highlights - Orting School District
Chapter 18 Highlights - Orting School District

... • Two species of salmon and bull tout are threatened with extinction under the federal Endangered Species Act. Loss of habitat due to stormwater and development is one of the causes. • Shellfish harvest at many beaches is restricted or prohibited due to pollution. Stormwater runoff is often one of t ...
Lesson 1 what is biodiversity
Lesson 1 what is biodiversity

... • Between 1.5 and 1.75 million species have been estimated to be present globally by scientists. • The figures are not exact ...
Which of the following is a commercially used method for harvesting
Which of the following is a commercially used method for harvesting

... a. Genetic uniformity of a crop increases the crop’s overall resistance to pests and disease. b. Genetic resistance to pests and diseases can be increased by crossing a crop plant with ancestral varieties. c. Genetic engineering technology is used to increase genetic diversity by creating new specie ...
Understanding Our Environment
Understanding Our Environment

... particular environment pass on more of their genes to the next generation is called natural selection. ...
Populations Dynamics
Populations Dynamics

... predators, infectious agents etc.) ...
Limiting Factors - The School District of Palm Beach County
Limiting Factors - The School District of Palm Beach County

... Population growth is an important area of study within ecology. Scientists are constantly monitoring the growth and decline of threatened and endangered species to determine what, if any, interventions may be necessary to prevent extinction. Limiting factors are factors (environmental or man-made) t ...
Powerpoint Slideshow here
Powerpoint Slideshow here

...  = Kill local molluscs  = Alter local ecology towards bottom dwellers  Permit more light penetration  Deposit organic matter on bottom ...
Unit IV Biodiversity
Unit IV Biodiversity

... confuse this with the number of individuals in any one species. It is not the same. How are these two concepts the same? _______________________________________________________________________________________________ ___________________________________________________________________________________ ...
biological diversity
biological diversity

... such as marshes, lakes, streams and forests, in which they are found. ...
Unit 8 CW Puzzle Biosphere
Unit 8 CW Puzzle Biosphere

Final Exam Review - Iowa State University
Final Exam Review - Iowa State University

... a. How organelles appeared in eukaryotic cells from bacterial cells. b. How mitochondria are descendants from photosynthetic bacteria. c. How host cells contain two different sets of DNA. d. All the above are described by the Endosymbiont Theory. 18.) When referring to metabolic diversity, which of ...
How Universal Is Natural Selection?
How Universal Is Natural Selection?

... and colleagues (2011) that divergence (in body size) among lineages accumulates only after the lineages have been separated for a million years or so, but he does not suggest why divergence should increase only then. I offer that this pattern may be related to his conclusion that species, as a whole ...
Diapositivas
Diapositivas

... Portugal may have ca. 40000 species which can all potentially interact  relations are directional and may be of several types and subtypes: ▪ Feeding on ▪ Parasitizing ▪ Dispersing ▪ Pollinating ▪ Co-occurring ...
Chapter 51
Chapter 51

... semelparous; iteroparous species exhibit repeated reproductive cycles H. Based on life history strategies, organisms may be classified as r-strategists and K-strategists I. r-strategists have a high r, small size, large numbers of offspring, and may live in unpredictable habitats 1. Many weeds or pe ...
Evolutionary Classification (17.2)
Evolutionary Classification (17.2)

...  Scientists use ______________ characters, such as _____________ acids and __________________, to help them determine evolutionary relationships among species. ...
Ch 3
Ch 3

Meeting 4: Evolution, Plant and Animal Adaptations
Meeting 4: Evolution, Plant and Animal Adaptations

... •  Explain why trade-offs are essential to understanding ecological and evolutionary processes •  Provide an example of a plant based adaptive trade-off •  Contrast the adaptive significance of the C3, C4, and CAM photosynthetic pathways •  Describe the above ground – below ground tissue trade off • ...
Population Distribution
Population Distribution

Invasive Species
Invasive Species

... The first identified populations were found in the Caspian Sea and Ural River in 1769 ...
Invasive Species
Invasive Species

... The first identified populations were found in the Caspian Sea and Ural River in 1769 ...
Chapter 6: Establishment Success: The Influence of Biotic Interactions
Chapter 6: Establishment Success: The Influence of Biotic Interactions

... that places with many diverse native species are more likely to repel non-natives. While data from smallscale experiments (ex. Smith & Knapp 2001) have agreed with Elton’s hypothesis, the opposite trend has been seen in experiments with larger scale observational studies and mathematical models. ...
March10NaturalSelection
March10NaturalSelection

... Mendel: showed that genes exist by breeding pea plants genes exist as recessives and dominants, one copy from each parent – Given dominant AA mom and recessive aa dad, offspring are all Aa, and look like mom – Variation comes from combining genes from mom (BbCCddZz) and dad ...
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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.
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