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In search of a real definition of the biological invasion phenomenon
In search of a real definition of the biological invasion phenomenon

... because it can prove to be very difficult to assess and, on the other hand, because it gives rise to a margin of interpretation (Richardson et al. 2000a; Daehler 2001; Rejmánek et al. 2002): what is the threshold value from which we can consider that there is an impact? What constitutes a major imp ...
Part I and Chapter 1 - Pima Community College
Part I and Chapter 1 - Pima Community College

... six, eight, or more kingdoms. • Also coming from this debate has been the recognition that there are three even higher levels of classifications, the domains. – The three domains are the Bacteria, Archaea, ...
Glossary - ChristopherKing.name
Glossary - ChristopherKing.name

... GenBank is a historical database of gene sequences, which means it contains every sequence that was published, even if the same sequence was published more than once. Therefore, GenBank is considered a redundant database. RefSeq is a database of sequences that is edited by NCBI and is NON-redundant, ...
Biotic Globalization: Does Competition from Introduced Species
Biotic Globalization: Does Competition from Introduced Species

... ple extension of the unified model, the metacommunities and high dispersal rates (m) among the local communities (m = (e.g., continents and large island groups) can be treated as 0.005 and m = 0.5, respectively). The graph at left shows that metalocal communities within the meta-metacommunity, and c ...
Biotic Globalization: Does Competition from Introduced Species
Biotic Globalization: Does Competition from Introduced Species

... ple extension of the unified model, the metacommunities and high dispersal rates (m) among the local communities (m = (e.g., continents and large island groups) can be treated as 0.005 and m = 0.5, respectively). The graph at left shows that metalocal communities within the meta-metacommunity, and c ...
sequence analysis of the 5` coi gene region from dama
sequence analysis of the 5` coi gene region from dama

... Comparative studies of mitochondrial DNA among different organisms have revealed both a general conserved organization across metazoa, and the existance of significant differences between groups (Morlais & Severson, 2002). These differences allowed the use of the DNA sequence of some specific mitoch ...
The effects of substrate types on species diversity
The effects of substrate types on species diversity

... Availability of rock space controls diversity levels and not prey availability • Our experiment suggests: • Prey availability competition leads to lower levels of diversity than competition for space ...
Chapter 53 Population Ecology
Chapter 53 Population Ecology

... • Life history traits are evolutionary outcomes reflected in the development, physiology, and behavior of an organism. • Some organisms, such as the agave plant, exhibit what is known as big-bang reproduction, in which an individual produces a large number of offspring and then dies. ° This is know ...
The ecology of shell shape difference in chirally - UvA-DARE
The ecology of shell shape difference in chirally - UvA-DARE

... columella and the horizontal axis of the apertural plane. Photographs of sinistral shells were mirrored in Adobe Photoshop. Images were transformed into a tps format using tpsUtil (Rohlf, 2004a) and landmarks were defined in tpsDig 2.0 (Rohlf, 2004b). Using auxiliary lines parallel and perpendicular ...
Terrestrial Salamander Monitoring Project
Terrestrial Salamander Monitoring Project

Four Central Points About Coevolution | SpringerLink
Four Central Points About Coevolution | SpringerLink

... ways. Parasites and hosts often coevolve through selection that favors rare, rather than more highly defended, genetic forms (Lively 2010). Local parasites are often not adapted to genetically rare forms of their local host population. Consequently, these rare host forms have higher survival or repr ...
Dell`Orphano: SNP discovery
Dell`Orphano: SNP discovery

... • The oligonucleotide selection program (osp) was used to design primers to amplify the 98 remaining SNPs. • 30 SNPs were in regions with no suitable amplimers. • In all, 44 STSs were developed to amplify the remaining 68 SNPs, with 16 STSs containing 2 SNPs and 8 STSs contained 3 or more SNPs. All ...
Competition
Competition

... number of individuals of each species that can coexist at equilibrium. When the L-V equations are given various values and graphed, a very informative series of figures can be generated (plotting number of species 2 vs. species 1). (See handout.) The space within a figure represents a combination of ...
Landscapes and Their Ecological Components
Landscapes and Their Ecological Components

... of what a landscape is, bearing in mind the different biological components (Farina, 1998). Historically, this discipline derived from the human geographical sciences, and the first description of families of patterns and processes was strictly linked to the anthropic sphere. Recent studies, mainly ...
05_3eTIF
05_3eTIF

... A) because restoration ecology can restore ecosystems B) because humans can find and make their own resources C) because zoos and gardens contain most important species and breeding technologies are improving D) because our understanding of genetics allows us to restore populations E) incorrect; the ...
Four Central Points About Coevolution | SpringerLink
Four Central Points About Coevolution | SpringerLink

... ways. Parasites and hosts often coevolve through selection that favors rare, rather than more highly defended, genetic forms (Lively 2010). Local parasites are often not adapted to genetically rare forms of their local host population. Consequently, these rare host forms have higher survival or repr ...
Hardy Weinberg Equiibrium with more than 2 alleles
Hardy Weinberg Equiibrium with more than 2 alleles

... result of all these biochemical interactions in building a brain can result in an organism with one version of an allele behaving somewhat differently from an individual with a different version. ...
DNA sequencing: methods
DNA sequencing: methods

... Homology: similarity of biological structure, physiology, development, and evolution, based on genetic inheritance Homologous proteins: statistically similar sequence, therefore similar functions (often, but not always…) ...
Into the wild: documenting and predicting  Crassostrea  gigas Judith Kochmann
Into the wild: documenting and predicting  Crassostrea  gigas Judith Kochmann

... • Invasive populations in many parts of the world with  significant changes on ecosystems: • decrease carrying capacity, especially of aquaculture  bays • native mussels show reduced growth between  oysters • act as a vector for other non‐native species • Most obvious and significant change is chang ...
Effects of Natural Selection on Interpopulation Divergence
Effects of Natural Selection on Interpopulation Divergence

BCS311 Module 5
BCS311 Module 5

... released from magma moving through it (see Module 3). It may thaw ground in permafrost regions (see Module 4) and is essential in hydrothermal communities of bacteria and animals associated with volcanic activity in the deep ocean. Ecological processes obey the Law of Conservation of Energy, which s ...
XVIII. Biology, High School
XVIII. Biology, High School

... cholesterol to make cell membranes, vitamin D, hormones, and bile (a liver product). There are two major types of cholesterol, both produced by the liver. • LDL cholesterol is called “bad cholesterol.” Excess amounts of LDL cholesterol in the blood mix with other substances and stick to the walls o ...
Kimberly J
Kimberly J

... Grasslands in a Global Context, 2011, The role of plant traits and their plasticity in determining community and ecosystem responses to alteration in nutrient availability (Poster) Ecological Society of America, 2011, The interactive effects of bottom-up and top-down forces vary across a broad grass ...
Sample Size Dependence in Measures of Proportional Similarity
Sample Size Dependence in Measures of Proportional Similarity

... and Blake (1977), who presented values of both measures for one data set with sample size ratio Y/X = 2.7. This gave the results PS, = 0.850 and PS, = 0.513. Gallaher and Blake (1977: 264) stated: 'These results suggest that the relative index PS, is dominated by compositional similarity; whereas, t ...
Demographic Stages
Demographic Stages

... • An increase in population growth puts stress on environmental life-support systems. We must curb or control, expanding global human population. ...
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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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