... A bit of plant ecology but will also
allow you to practice identifying trees
that you will see on a daily basis.
Conserving Populations (week 11)
... True introductions, reintroductions, augmentation
Limited dispersal powers & fragmented habitats
High population increase rate
Not good for mammals and birds
High genetic diversity
Best at historical core range
Evolution - Houston ISD
... • Population bottlenecks: sharp reduction in the
size of populations
• Mutation: permanent change in DNA
3.4 Ecosystem Changes
... b. endangered - too few individuals,
Species need 10,000 organisms to maintain
c. extinct - means gone forever - when
numbers drop below 1,000 for animal
species and 120 species for plants, the
species is considered extinct because of
the problems finding mate ...
Divergence and constraint in the origin of new species The origin of
... The origin of new species creates biological diversity and understanding species formation is thus a
key goal in biology. In this talk, I will tackle the issue of why some populations that begin the
speciation process diverge further than others, a phenomenon central to understanding
Chapter 5 and 6 study guide
... Competition, predation, parasitism, and ____________________ are density-dependent limiting factors.
A diagram that illustrates how many people of different ages and gender are presently living in a country is
called a(an) ______________________________.
Social and ____________________ factors expla ...
Intro to the Biosphere
... because not all individuals are identical.
Populations contain genetic variation within themselves and
between other populations.
Fundamental genetic differ slightly from individual to individual. More
importantly, not all members of the population are equal in their
ability to survive and reproduce ...
Biology Week 3 Vocabulary: Evolution
... 3. selection the process by which organisms
with favorable variations for their
environment survive, reproduce, and pass on
those variations to the next generation
5. the evolution of a new species from an
6. the idea that evolutionary change occurs
slowly and steadily over long per ...
Chapter 5 Review: Biodiversity, Species Interaction and Population
... 4. What is the competitive exclusion principle?
5. What is a(n) omnivore, herbivore, detritivore, carnivore?
6. What methods do predators use to capture prey?
7. What methods do prey use to escape capture?
8. What are the long term effects of parasites?
9. What is camouflage? Mimicry? Give examples ...
... As global climates are shifted it may change the
dynamics in local communities
I.e. increased production in some places,
decreased production in others
... However, with European settlement, clear cutting occurred throughout most of the Ozarks, often followed by cutting of second-growth
forest as well. The present forest grew during a time in which fires were suppressed, particularly from about 1950 to the present. This
new forest is an oak–hickory for ...
Topics in Ecology and Evolution: Molecular Evolution
... of mutations. Recombination and gene conversion. Molecular markers and
3. Evolution of sequences. Mutational models. Nucleotide substitutions. GC content and
isochores. Amino acid substitutions. Alignments. PAM and BLOSUM matrices. Lab:
BLAST, ClustAl and manual alignment.
2. Molecula ...
Chapter 23 Notes: Population Genetics
... the light variety continued to dominate in unpolluted areas outside of London.
3) Diversifying (a.k.a. Disruptive) Selection: occurs when environment
while selecting against common traits
4) Sexual Selection: differential mating of males in a population;
-females tend to increase their fitness by ...
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.