• 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
intolerance to lactose and other dietary sugars
intolerance to lactose and other dietary sugars

... disorders”. Both are very severe conditions, which can be fatal if not diagnosed immediately, since there is onset of symptoms as soon as milk is first consumed. In contrast, adult lactase deficiency or lactase nonpersistence is more common than lactase persistence and represents a genetically deter ...
Large Species Shifts Triggered by Small Forces
Large Species Shifts Triggered by Small Forces

... to proceed gradually at first sight, but remarkably rapid shifts are known to occur. Although disrupting disturbances seem an obvious explanation for such shifts, evidence for large disturbances is not always apparent. Here we show that complex communities tend to move through occasional catastrophi ...
Ecological Society of America - Wentworth Group of Concerned
Ecological Society of America - Wentworth Group of Concerned

... Long-term systematic population monitoring datasets are rare, but are essential in identifying changes in species abundance. In contrast, community groups and natural history organizations have collected many species lists. These represent a large, untapped source of information on changes in abunda ...
Downloaded
Downloaded

... the asexually produced fragments are able to keep on growing after being scattered by storms or carried to a new area, the results can extend a species geographic distribution, as well as increasing a genet’s population size. Other processes of asexual recruitment, such as gemmulation and encapsulat ...
Tree species richness promotes productivity in temperate forests
Tree species richness promotes productivity in temperate forests

... We explore an alternative approach to study the response of forest productivity to changes in tree species richness using a process-based forest succession model featuring five key advantages: (1) The model has been developed and validated independently from efforts focusing on diversity–productivit ...
Connections between species diversity and genetic diversity
Connections between species diversity and genetic diversity

Summer feeding relationships of the co
Summer feeding relationships of the co

... and other aquatic preys increased in larger specimens. A similar pattern was observed in G. lozanoi (Table 2), the consumption of Chironomidae decreased whilst predation on Trichoptera larvae, Crustacea and terrestrial preys increased as fish grew larger. Both species showed a higher number of prey ...
Topological explanations, robustness and the multirealisability debate.
Topological explanations, robustness and the multirealisability debate.

... determined by stating the “set-up” and “termination” conditions. The chronology of sequences through which entities act is crucial to explain the production of this termination condition ...
Interactions Between Entomopathogenic Fungi and Other
Interactions Between Entomopathogenic Fungi and Other

... if interference between the natural enemies is suYcient (Hochberg & Lawton, 1990). Parasitism/infection, predation, and competition are three potentially antagonisti c interactions which would result in interference between insect and fungal natural enemy species. Direct Infection of Non-target Inse ...
mitigating the impacts of human land
mitigating the impacts of human land

... I would like to thank my adviser and dissertation chair, Scott Collins, for believing in me, encouraging me, putting up with my need to travel, work, and take care of my kids; and for supporting so many women and people of color in completing their Ph.D.s in biology. I could not have done it without ...
Life-History Differences among Coral Reef Sponges
Life-History Differences among Coral Reef Sponges

... overgrow—and sometimes appear to smother—sponges of the three mutualistic species. The proximate aim of this study was to test the hypothesis that this fourth species is an exploiter, gaining by adhering to sponges of other species as if it were participating in the mutualism but failing to reciproc ...
2. review of toheroa in new zealand
2. review of toheroa in new zealand

... the toheroa, which is required to successfully restore populations. In addition, the various factors that have been identified as possibly impacting toheroa populations have not been correlated with the various beach habitats in which they are found. Future work is required to identify suitable habi ...
Systems-wide Chicken DNA Microarrays, Gene Expression Profiling
Systems-wide Chicken DNA Microarrays, Gene Expression Profiling

... gene expression in target tissues of chickens. DNA microarray analysis has been a fruitful strategy for the identification of functional genes in several model organisms (i.e., human, rodents, fruit fly, etc.). We have constructed and normalized five tissue-specific or multiple-tissue chicken cDNA l ...
Molecular Diagnostics for the Detection and Characterization of
Molecular Diagnostics for the Detection and Characterization of

... probes in microbiology, some are available, and more are likely on the horizon. The PNA FISH assays that are currently available in North America detect and differentiate S. aureus from other gram-positive cocci in clusters and Candida albicans from other yeasts. The assay may be performed as soon a ...
Native Fauna on Exotic Trees: Phylogenetic
Native Fauna on Exotic Trees: Phylogenetic

... natives from the same major plant lineage (angiosperms vs. gymnosperms) than with natives from the other lineage. This was particularly true for Heteroptera, and it emphasizes the role of host specialization in phylogenetic conservatism of host use. However, for Coleoptera on Douglas-fir, mass effec ...
Habitat loss, trophic collapse, and the decline of ecosystem services
Habitat loss, trophic collapse, and the decline of ecosystem services

... themselves from the bottom up (Thornton et al. 1988, Thornton 1996); the island was first colonized by plants, then herbivores, and only after 50 years were there sufficient resources for predators to colonize. As natural habitats are eroded in size, the net decline in species diversity has traditiona ...
African Herp News 58, December 2012
African Herp News 58, December 2012

... seven families is not followed here, nor the recent changes with regard to the genera of Lamprophiidae (Kelly et al., 2011). The Colubridae still includes Natricidae and Lamprophiidae as subfamilies, and Duberria is included in the latter. The house snakes are well represented (as Lamprophis), with ...
Wednesday, 8 February 2017 - 6th International Sea Duck Conference
Wednesday, 8 February 2017 - 6th International Sea Duck Conference

... and likely many areas across the breeding range of common eiders where banding is not occurring. Gaining a better understanding of the source population(s) of common eiders involved in these mortality events has become increasingly important given the growing concern over population trends in variou ...
The emergence and promise of functional biogeography
The emergence and promise of functional biogeography

... The first trait–environment relationships were established from local studies (78, 79), but site-dependent effects and the restricted range of environmental conditions covered in most studies question the robustness of the results. A functional biogeography approach to this question is a relevant al ...
Combined effects of salinity and temperature on survival and
Combined effects of salinity and temperature on survival and

... experimental design incorporated three variables (species, salinity and temperature) for a total of 45 treatment conditions (5 3 3 3 3), and a total n of 2250 individuals (45 3 50). Artemia were fed yeast and Dunaliella (a unicellular algae) alternately every other day (the maximum amount which coul ...
Adaptive Radiation, Ecological Opportunity, and Evolutionary
Adaptive Radiation, Ecological Opportunity, and Evolutionary

... Evidence from studies of introduced species supports the conclusion that competitive replacement of incumbent species is probably uncommon: competition from introduced species rarely causes the extinction of native species throughout their range (as opposed to local extinctions of some populations o ...
Adaptive Radiation, Ecological Opportunity, and
Adaptive Radiation, Ecological Opportunity, and

symbiosis, lateral function transfer and the (many) saplings of life
symbiosis, lateral function transfer and the (many) saplings of life

... account for these developments in microbiology (Doolittle and Bapteste 2007). We have seen in this issue how these developments have been defined and analyzed. It is relatively safe to say that, whereas these scientific advancements were initially rejected as genuine (or significant) biological phen ...
habitat loss, trophic collapse, and the decline of ecosystem services
habitat loss, trophic collapse, and the decline of ecosystem services

... themselves from the bottom up (Thornton et al. 1988, Thornton 1996); the island was first colonized by plants, then herbivores, and only after 50 years were there sufficient resources for predators to colonize. As natural habitats are eroded in size, the net decline in species diversity has traditiona ...
Seasonal species interactions minimize the impact of species
Seasonal species interactions minimize the impact of species

... Focusing on ecological communities subject to environmental variations, ecological theory suggests that the impact of seasonal changes can make a community to switch between different levels of maturity or development (e.g., seasonal differences in species composition; Margalef 1963). In particular, ...
< 1 ... 118 119 120 121 122 123 124 125 126 ... 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