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Non-Additive Effects of Genotypic Diversity Increase Floral
Non-Additive Effects of Genotypic Diversity Increase Floral

... through their direct effects on floral abundance. These results are some of the first to demonstrate that floral community phenotypes may vary in response to plant genotypic diversity. This represents an important advance as recent studies such as Klein et al. (2003) have reported that bee diversity ...
The consequences of scale: assessing the distribution of benthic
The consequences of scale: assessing the distribution of benthic

... Evidence suggests that patterns of benthic community structure are functionally linked to estuarine processes and physical characteristics of the benthos. To assess these linkages for coarse-sediment shorelines, we used a spatially nested sampling design to quantify patterns of distribution and abun ...
burmese pythons in everglades.full
burmese pythons in everglades.full

... large enough to prey on medium-sized mammals (24). Finally, ENP represents a vast natural area where hunting is prohibited; other than changes in water-management regimes, anthropogenic impacts in ENP that might result in mammal declines have not changed markedly during the last two decades (25). Se ...
Rooting the Ribosomal Tree of Life Research article
Rooting the Ribosomal Tree of Life Research article

... Forterre 1999; Cavalier-Smith 2006). For these reasons, a ribosomal ToL has been proposed to be an ideal ‘‘backbone’’ upon which to map horizontal gene transfers, clearly depicting their distinct contribution to genomic evolution (Gogarten 1995; Dagan et al. 2008; Swithers et al. 2009). Unfortunatel ...
Diversity meets decomposition
Diversity meets decomposition

... assess whether general relationships exist between biodiversity and decomposition in these two closely connected environments, which share many basic features, but differ in environmental conditions and decomposer community composition and diversity (Box 2). First, we examine, in three separate sect ...
Chemicals in Host-Parasitoid and Prey-Predator Relations
Chemicals in Host-Parasitoid and Prey-Predator Relations

... Second, they play an important part in the natural control of other insect populations, being used in biological control programs of insect pests. This fact has stimulated a large amount of empirical and theoretical work to identify and quantify the attributes that enhance the effectiveness of preda ...
a new exotic species in florida, the bloodsucker lizard, calotes
a new exotic species in florida, the bloodsucker lizard, calotes

... Several Calotes escaped in 1978 from a reptile dealer located near the southwestern end of Glades Cutoff Road (Weinberg, 2003). The escapees came from a shipment from Pakistan, and the reptile dealer told us that the established population consisted of C. emma. However, the species present is actual ...
Journal of Animal Ecology 82(6) - Seagrass Ecosystems Research
Journal of Animal Ecology 82(6) - Seagrass Ecosystems Research

... beds, extending into sand substrate where tropical seagrass species are most prevalent (Burkholder, Fourqurean & Heithaus 2013). Because of herbivore preferences for fast-growing species in this system (Burkholder, Heithaus & Fourqurean 2012) and apparent resilience of A. antarctica to grazing (Burk ...
An experimental study on risk effects in a dwarf
An experimental study on risk effects in a dwarf

... September 2011 using portable spotlights and long-handled nets, following methods described in Komers (1996b). We fitted each animal with a 200-g GPS collar (Savannah Tracking Ltd., Nairobi, Kenya), programed to record the location of dik-diks every 10 min. During handling, animals’ eyes were covere ...
- Wiley Online Library
- Wiley Online Library

... location of migratory species. Such systems offer an opportunity to empirically investigate cyclic population density effects on short-­term food web interactions by taking advantage of the large seasonal shifts in migratory prey biomass. 2. We utilized a large-­mammal predator–prey savanna food we ...
The roles of the Moran effect and dispersal in synchronizing
The roles of the Moran effect and dispersal in synchronizing

... coupled patches (Goldwyn and Hastings, 2008). Weakly coupled systems are of ecological interest and importance because we expect that if coupling (migration) is large, then its effect would be directly observable or measurable, and that the expected outcome would be synchrony on a fast time scale. A ...
The Ecological Impacts of Removing the Gray Wolf (Canis Lupus
The Ecological Impacts of Removing the Gray Wolf (Canis Lupus

... wild  dog  species.  Like  many  other  dog  species  the  gray  wolf  is  a  pack  hunter;  however,  it  is   not  uncommon  for  an  individual  wolf  to  break  from  a  pack  and  form  its  own  pack   (http://www.nps.gov/yell ...
Speciesspecific responses of foliar nutrients to longterm nitrogen
Speciesspecific responses of foliar nutrients to longterm nitrogen

... (Hach Ltd., Loveland, CO, USA). The efficiency of leaf nutrient resorption was calculated as ((leaf [mg g 1] litter [mg g 1])/leaf [mg g 1]) 9 100 (Killingbeck 1996). Because it has been established that leaf mass loss resulting from carbon resorption during senescence can lead to substantial underes ...
Ecological impacts of invasive cane toads
Ecological impacts of invasive cane toads

... none showed major impairment of growth, survival or locomotor performance. One native tree-frog (L. caerulea) retained high infection levels with few ill effects, suggesting that we might be able to use this taxon as a reservoir species to build up local parasite densities for toad management. ...
Environmental Variation, Stochastic Extinction, and Competitive
Environmental Variation, Stochastic Extinction, and Competitive

Food Web Theory and Ecological Restoration
Food Web Theory and Ecological Restoration

SEASONAL VARIATION IN SEX RATIOS AND
SEASONAL VARIATION IN SEX RATIOS AND

... the transfer of rank and/or access to high quality resources). Therefore, these hypotheses propose that high quality females are more likely to produce females than males. Conversely, the local resource competition hypothesis states that local resources rather than maternal condition drive biases i ...
BMC Microbiology
BMC Microbiology

... Background: Six independent Gram-negative, facultatively anaerobic, non-spore-forming, nitrogen-fixing rodshaped isolates were obtained from the root endosphere of rice grown at the International Rice Research Institute (IRRI) and investigated in a polyphasic taxonomic study. Results: The strains pr ...
Population growth rate and its determinants
Population growth rate and its determinants

... signiŽ cance of this information [i.e. Ž gure 2a] is that it provides background experimental data for studies on distribution and abundance. The limits of distribution of the beetles are determined, so far as temperature and moisture are concerned, by the combination of temperature and moisture bey ...
Factors Affecting the Social Behaviour of Crustaceans Living
Factors Affecting the Social Behaviour of Crustaceans Living

... crustaceans, a wide variety of taxa, including shrimps, crabs, amphipods, isopods, and copepods have been described as symbionts of macro-invertebrates all around the world, including tropical and temperate environments, and intertidal and subtidal regimens. Furthermore, the kind of symbiotic partne ...
The interacting effects of temperature and food chain length on
The interacting effects of temperature and food chain length on

... were present, but at densities too low to be detected by the assay method. Aliquots of sufficient size to sample protists at very low densities would have been large enough to constitute a disturbance. Although reliable bacterial species identification was not possible via plating, both pink (Serratia ...
Drivers of CO2 Emission Rates from Dead Wood Logs of 13 Tree
Drivers of CO2 Emission Rates from Dead Wood Logs of 13 Tree

... selected fungal species that analyzed the relationship between fungal diversity and decomposition rate of soil organic matter found a saturation of this process at rather low levels of fungal species diversity [27]. In another experiment with dead wood, it was shown that the fungal diversity-decompo ...
Evolutionary and plastic rescue in multitrophic model communities
Evolutionary and plastic rescue in multitrophic model communities

... describes the reproductive investment towards producing undefended types (as a fraction of the whole population’s growth rate r); this investment decreases with increasing densities of ‘inducers’ at the next trophic level up; conversely, the investment towards producing defended types increases with ...
Microbial production of hyaluronic acid: current state, challenges
Microbial production of hyaluronic acid: current state, challenges

Rethinking Community Assembly through the Lens
Rethinking Community Assembly through the Lens

... describe how abiotic factors like climate prevent species without certain physiological traits from occurring in local communities (e.g., species without frost tolerance may not occur in alpine communities), it does not adequately describe the dynamic response to or impact of plant species on limiti ...
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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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