• 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
Physiological Ecology of Rocky Intertidal Organisms: A Synergy of Concepts L T *
Physiological Ecology of Rocky Intertidal Organisms: A Synergy of Concepts L T *

... and Wethey, 2001), for example as increased strength in byssal threads due to seasonal changes in wave force, have not been elucidated but are likely to significantly constrain reproductive output (Carrington, this volume). The assumed gradient in multiple physical factors, (e.g., temperature, aeria ...
GST II: ---Title--- - Digital Biology Laboratory
GST II: ---Title--- - Digital Biology Laboratory

... Similar to ”longest common subsequence” (LCS) problem for strings, (Robinson, 1938) LCS: define a set of operations (e.g. substitution, insertion or deletion) that transform the aligned elements of one sequence into the corresponding elements of the other and associate with each operation a cost or ...
Banded Killifish (Fundulus diaphanus)
Banded Killifish (Fundulus diaphanus)

... Newfoundland, maximizing the potential of natural disturbance, urban expansion, and industrial development, on 4 of the 7 recognized Newfoundland locales. The three populations surveyed directly (Indian Bay, Loch Leven, and Freshwater Pond) indicate that the species is locally abundant but actual po ...
Habitat Loss and Fragmentation
Habitat Loss and Fragmentation

... reasons. At the population level, greater amounts of habitat sustain larger population sizes, which are less susceptible to stochastic extinction (MacArthur and Wilson, 1967) and genetic drift (Wright, 1931). At the community level, lower extinction rates in areas with more habitat are expected to l ...
Accumulation of Poly(3-hydroxybutyrate) from
Accumulation of Poly(3-hydroxybutyrate) from

... The ∆Tm values were 6.2 °C and 4.9 °C respectively, indicating that these organisms are closely related although not in the same species. The level of reassociation with P. plecoglossicida CIP 106493T was low (25%). The levels of reassociation between P. putida GPo1 and other species were low (< 25% ...
Trait-mediated assembly processes predict successional changes in
Trait-mediated assembly processes predict successional changes in

... uantifying the relative importance of mechanisms that drive community assembly remains a central challenge in ecology. Interspecific variation in ecological strategies is considered a major driver of community assembly and has been classified by Chesson (1) into relative fitness (i.e., per capita po ...
Ecological speciation - Nosil Lab of Evolutionary Biology
Ecological speciation - Nosil Lab of Evolutionary Biology

... focus on understanding the details of the process. To do this, we separate ecological speciation into three necessary components: an ecological source of divergent selection, a form of reproductive isolation, and a genetic mechanism to link them. This approach is based on a similar classification of ...
Species Action Plan - Butterfly Conservation
Species Action Plan - Butterfly Conservation

...  The Duke of Burgundy has a primarily central southern distribution in England, with isolated populations on the limestone of south Cumbria/north Lancashire and the north Yorkshire moors. In the UK it has declined in many areas since 1950. This decline has been most marked in woodland in central an ...
Physiological Ecology of Rocky Intertidal Organisms: A
Physiological Ecology of Rocky Intertidal Organisms: A

... and Wethey, 2001), for example as increased strength in byssal threads due to seasonal changes in wave force, have not been elucidated but are likely to significantly constrain reproductive output (Carrington, this volume). The assumed gradient in multiple physical factors, (e.g., temperature, aeria ...
CHANGES IN TURBULENT MIXING SHIFT COMPETITION FOR
CHANGES IN TURBULENT MIXING SHIFT COMPETITION FOR

... buoy 6 (Fig. 1). The temperature loggers recorded the temperature every 10 minutes. Vertical turbulent diffusivities can be calculated from detailed profiles of the temperature microstructure (Imberger and Ivey 1991, Kocsis et al. 1999, MacIntyre 1999, Sharples et al. 2001). This requires that the t ...
Do Lions Panthera leo Actively Select Prey or Do Prey
Do Lions Panthera leo Actively Select Prey or Do Prey

... Research on coursing predators has revealed that actions throughout the predatory behavioral sequence (using encounter rate, hunting rate, and kill rate as proxy measures of decisions) drive observed prey preferences. We tested whether similar actions drive the observed prey preferences of a stalkin ...
Ecosystems - Environmental
Ecosystems - Environmental

... Ecosystem studies ...
full text pdf
full text pdf

... the many feeding interactions that comprise food webs is difficult, especially in systems where direct observation of feeding by predators is impractical or nearly impossible. Morphological identification of prey from the stomach contents or feces of consumers has traditionally been used to describe ...
Ecology and Evolution of Poeciliid Fishes
Ecology and Evolution of Poeciliid Fishes

... Selected poeciliids have been threatened by overexploitation. The aquarium trade is the major cause for overexploitation, with 90% of freshwater aquarium fishes coming directly from the wild (Olivier 2001). For instance, both Poecilia catemaconis and Poeciliopsis catemaco are imperiled due to commerc ...
The Rise of the Mesopredator
The Rise of the Mesopredator

... resource availability is primarily responsible for mesopredator outbreaks, the presence of large predators is even more critical because such top-down regulation is the only constraint on mesopredator abundance. When both top-down and bottom-up constraints on mesopredators’ population growth are rel ...
APHIDS AND ANTS - underc - University of Notre Dame
APHIDS AND ANTS - underc - University of Notre Dame

... investigated to determine whether they are involved in a mutualism in which each species provides clear benefits to the other. First, winged aphid morphs have been found to be become more abundant and disperse when under stressful conditions such as overcrowding, plant quality, and predation. Theref ...
Comparison of Sample Sequences of the Genome to the Sequence K-12
Comparison of Sample Sequences of the Genome to the Sequence K-12

... homologous and these shared genes average about 85% identity at the nucleotide level, the random fixation of mutations means that genes that are related by descent from the common ancestor vary widely around the mean of 85% identity. Lateral transfer is an ongoing process in these species and can oc ...
Environmental Assessment Tool for Private Aquaculture in the
Environmental Assessment Tool for Private Aquaculture in the

... Fisheries (1997) call for agreement and collaboration between the management agencies with respect to water quality and fisheries management, the actual process for consensus is much more difficult. In addition, some managers and other Great Lakes stakeholders may be unaware of other jurisdictions’ ...
Management Plan Supplement - Yakima/Klickitat Fisheries Project
Management Plan Supplement - Yakima/Klickitat Fisheries Project

... abundance. Historically, 500,000-900,000 adult salmon and steelhead returned to the Yakima Subbasin annually. This total was comprised of spring, summer, and fall chinook, coho, sockeye, and steelhead. Summer chinook, sockeye, and native coho are extinct in the subbasin. Coho currently found in the ...
Evolutionary ecology of mountain birch in subarctic stress gradients
Evolutionary ecology of mountain birch in subarctic stress gradients

... end. These clines of unidirectionally changing stress are generally known as ‘stress gradients’. Through its effect on plant performance, stress has the capacity to fundamentally alter the ecological relationships between individuals, and through variation in survival and reproduction it also causes ...
Living in a landscape of fear: the impact of predation, resource
Living in a landscape of fear: the impact of predation, resource

... were combined with data on resource distribution in a spatially explicit model, the ranging behaviour of the study group could be interpreted as an adaptive response to the spatial availability of resources and the perceived risk of predation by some, but not all, predators (Willems & Hill, 2009). T ...
Pollination and other ecosystem services produced by effects of land-use change
Pollination and other ecosystem services produced by effects of land-use change

... spatial configuration of different types of natural, seminatural and anthropogenic habitats, which in turn influences all of these communities (3A–D). For example, landscape structure influences the temporal and spatial availability of food, nesting, overwintering and mating sites for pollinators. A ...
Pollination and other ecosystem services produced by mobile
Pollination and other ecosystem services produced by mobile

... spatial configuration of different types of natural, seminatural and anthropogenic habitats, which in turn influences all of these communities (3A–D). For example, landscape structure influences the temporal and spatial availability of food, nesting, overwintering and mating sites for pollinators. A ...
Pollination and other ecosystem services produced by mobile
Pollination and other ecosystem services produced by mobile

... spatial configuration of different types of natural, seminatural and anthropogenic habitats, which in turn influences all of these communities (3A–D). For example, landscape structure influences the temporal and spatial availability of food, nesting, overwintering and mating sites for pollinators. A ...
The concept of potential natural vegetation: an epitaph?
The concept of potential natural vegetation: an epitaph?

< 1 ... 52 53 54 55 56 57 58 59 60 ... 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