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Geographic range of West African freshwater fishes
Geographic range of West African freshwater fishes

... a negative power function to frequency distributions for certain parameter values. but the variance given by the model was in all cases smaller than the observed value. The hypothesis according to which, species have the same colonization ability is rejected. Multiple reg. Ession analysis was carrie ...
Tern, roseate - State of New Jersey
Tern, roseate - State of New Jersey

... located above the high-tide line, often within vegetated dunes where dense concentrations of beach grasses and seaside goldenrod (Solidago sempervirens) provide cover. In comparison to other terns, roseates nest at sites with more vegetative cover. Infrequently, they may nest in open areas, especial ...
Wildlife Management and Policy
Wildlife Management and Policy

... The course will provide a comprehensive introduction to wildlife ecology and management. The goal of the course is to expose students to the field of wildlife management, conservation biology and the use of indicator species and wildlife corridors in maintaining biodiversity. Students will develop a ...
GEOGRAPHIC VARIATION IN POSITIVE AND NEGATIVE
GEOGRAPHIC VARIATION IN POSITIVE AND NEGATIVE

... Salt marshes have proven to be useful natural systems for studying positive interactions among plants (Bertness 1991, Bertness and Yeh 1994, Callaway 1994, Hacker and Gaines 1997, Hacker and Bertness 1999, Callaway and Pennings 2000). Salt marsh plants experience physical stress due to the anoxic, s ...
Ecological Risk Assessment of Genetically Modified Higher Plants
Ecological Risk Assessment of Genetically Modified Higher Plants

... risk assessment of GMHPs. It does not discuss the actual risk assessment procedures and the risk evaluation, which must proceed the data collection. The report use the terminology “ecological risk assessment” rather than “environmental risk assessment” because at present this work does not include b ...
Pleistocene Rewilding - UNM Biology
Pleistocene Rewilding - UNM Biology

... bird species that are now extinct—more than 20% of the extant avifauna worldwide (Monroe and Sibley 1993; Steadman 1995; Steadman and Martin 2003). Over the past three decades, conservation practitioners have developed techniques to halt insular extinctions and restore island ecosystems (Veitch and ...
competition for hummingbird pollination shapes flower color
competition for hummingbird pollination shapes flower color

... An alternative model involving competition for pollinators can account for color divergence even in the absence of shifts among functional groups of pollinators. When plants cooccur and flower synchronously, fitness can be reduced through competition for pollinator service (Waser 1978; Morales and T ...
i THE EVOLUTION OF SPECIES’ GEOGRAPHICAL RANGE LIMITS:
i THE EVOLUTION OF SPECIES’ GEOGRAPHICAL RANGE LIMITS:

... (Channell and Lomolino 2000) or determining conservation priority or extinction risk based on expected population size and genetic diversity (Lawton 1993, Lesica and ...
Bioethics Thesaurus for Genetics
Bioethics Thesaurus for Genetics

... Biological specimen banks+ DNA fingerprinting Genetic privacy Genetic research+ CL 15.1 and 1.3.12 GENETIC DETERMINISM DT ...
Mod 2 computer lab review options
Mod 2 computer lab review options

... agriculture (e.g., selective breeding, gene splicing, cloning, genetically modified organisms, gene therapy). ASSESSMENT ANCHOR: BIO.B.3 Theory of Evolution  BIO.B.3.1 Explain the mechanisms of evolution.  BIO.B.3.1.1 Explain how natural selection can impact allele frequencies of a population.  B ...
management plan for the oconee river robust redhorse population
management plan for the oconee river robust redhorse population

... Habitat Use and Behavior:  In rivers with meanders, non-spawning adults are often associated with woody debris in relatively moderate to swift currents, typically in meander sections. In rivers without meanders, non-spawning adults seem to prefer deep holes, typically in association with woody debr ...
NICHE DIVERSIFICATION OF CONIDAE IN MO`OREA, FRENCH
NICHE DIVERSIFICATION OF CONIDAE IN MO`OREA, FRENCH

... (Vandermeer 1972). Moreover, further examination of the physical microhabitats of different species is key to comprehending how organisms of that species interact with various pressures from their surroundings (Pulliam 2000, Kadmon and Allouche 2007). Niche differentiation in tropical organisms show ...
Alternative stable states in ecology
Alternative stable states in ecology

pdf file - UNM Biology - University of New Mexico
pdf file - UNM Biology - University of New Mexico

... Articles The second group of studies documents longer-term correlations between precipitation inputs and rodent responses. Some of these studies also provide evidence for the intermediary link, that is, some kind of plant response such as increased productivity or cover following high rainfall. For ...
Studying insect diversity in the tropics
Studying insect diversity in the tropics

... 19th-century explorer^naturalists. As can be seen from their diaries and notebooks, contemplation of how such wonderful abundance and variety might arise was instrumental in pointing Darwin and especially Wallace to the theory of natural selection. Yet, as bemoaned by May (1988, 1990) and others, a ...
Can community-protected areas conserve biodiversity in human
Can community-protected areas conserve biodiversity in human

... two GMR sampling sites were separated by 2km, while MC sites were separated by a minimum of 3km. Basic descriptive landscape measures were obtained for each of the eight MC study sites: percentage of forest cover in a circle of 2.5 km radius around the center of sampling sites, distance to the neare ...
Engage - NC Science Wiki
Engage - NC Science Wiki

... to compete for limited resources of food, water, space and shelter. Some species, however, have symbiotic relationships in which interactions benefit longterm survival of one or both species. The interconnectedness of populations means that change in one population within a community of living thing ...
can intraspecific competition drive disruptive selection?
can intraspecific competition drive disruptive selection?

... Three-spine sticklebacks, G. aculeatus, are a widely distributed north temperate fish, whose marine populations repeatedly invaded freshwater habitats (Wootton 1984) and sometimes diversified into phenotypes using distinct microhabitats and eating different prey (Lavin and McPhail 1985). This divers ...
Comparing small mammal faunas based on barn owl (Tyto alba
Comparing small mammal faunas based on barn owl (Tyto alba

... was evaluated as well as the correlation of frequency order on a meso- and microregional scale in the comparison of the two lowland areas. The food niche parameters of barn owl were calculated on a local scale, regarding the breeding pairs. We investigated three null hypotheses: the distribution of ...
Predicting species` maximum dispersal distances from simple plant
Predicting species` maximum dispersal distances from simple plant

... (Fig. 1A). Naturally, this model cannot be used to predict dispersal distances for animal or ant dispersal. However, even a simple linear model incorporating only categorical variables (growth form and dispersal syndrome) predicted dispersal distances with a reasonable accuracy (predictions R 2 ¼ 0. ...
this PDF file
this PDF file

... order, upland rainforest streams (~ 800 m a.s.l.) and display seasonal flow and temperature regimes, like other streams in the region (Pearson et al. 1986). We investigated interactions among the four most common shredder species in these streams: Anisocentropus kirramus Neboiss 1980 (Trichoptera Ca ...
Hamster, Cricetus cricetus - European Commission
Hamster, Cricetus cricetus - European Commission

... The common hamster is a small mammal that lives for 1-2 years; because it is so short-lived it needs to produce 2 litters a year just to maintain its population levels; The hamster lives in underground burrows. A typical burrow is usually several meters long and 0.5 – 2 m below the surface. It consi ...
EDULISS: a small-molecule database with data
EDULISS: a small-molecule database with data

... molecules using bioinformatic and database mining approaches (3). In order to test such in silico predictions it is important to have databases of available compounds. It is only relatively recently that searchable interactive small molecule databases have become available to noncommercial research ...
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The role of interspecific interference competition
The role of interspecific interference competition

... (e.g. weaponry, body size). We define agonistic character displacement (ACD) as the process of phenotypic evolution in a population caused by interference competition with one or more sympatric species and which results in shifts in traits that affect the rate, intensity or outcome of interspecific ...
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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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