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Ecology & Evolutionary Biology: Recent submissions
Now showing items 681-700 of 1921
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Evolutionary change in agriculture: the past, present and future
(Wiley Open Access, 2010-09) -
Advancing Synthetic Ecology: A Database System to Facilitate Complex Ecological Meta-Analyses
(Ecological Society of America, 2010-04-01) -
The Coexistence of Hosts with Different Abilities to Discriminate against Cheater Partners: An Evolutionary Game-Theory Approach
(University of Chicago Press, 2014-04-11)Evolutionary theory predicts that mutualisms based on the reciprocal exchange of costly services should be susceptible to exploitation by cheaters. Consistent with theory, both cheating and discrimination against cheaters ... -
Joint Evolution of Kin Recognition and Cooperation in Spatially Structured Rhizobium Populations
(Public Library of Science, 2014-04-14)In the face of costs, cooperative interactions maintained over evolutionary time present a central question in biology. What forces maintain this cooperation? Two potential ways to explain this problem are spatially ... -
Synergism and context dependency of interactions between arbuscular mycorrhizal fungi and rhizobia with prairie legume
(Ecological Society of America, 2014-04-01)Biotic interactions play primary roles in major theories of the distribution and abundance of species, yet the nature of these biotic interactions can depend upon the larger ecological community. Leguminous plants, for ... -
Large Deletions in the pAtC58 Megaplasmid of Agrobacterium tumefaciens Can Confer Reduced Carriage Cost and Increased Expression of Virulence Genes
(Oxford University Press, 2013-06-19)The accessory plasmid pAtC58 of the common laboratory strain of Agrobacterium tumefaciens confers numerous catabolic functions and has been proposed to play a role in virulence. Genomic sequencing of evolved laboratory ... -
Taxonomic revision transferring species in Kuklospora to Acaulospora (Glomeromycota) and a description of Acaulospora colliculosa sp. nov. from field collected spores
(Mycological Society of America, 2010-05)In a phylogenetic study of arbuscular mycorrhizal fungal species in Acaulospora (Acaulosporaceae, Glomeromycota) we discovered that species classified in genus Kuklospora, a supposed sister clade of Acaulospora, did not ... -
Mycorrhizal densities decline in association with nonnative plants and contribute to plant invasion
(Ecological Society of America, 2009-02-01)Belowground interactions between herbaceous native species and nonnative species is a poorly understood but emerging area of interest to invasive-species researchers. Positive feedback dynamics are commonly observed in ... -
Evidence for the evolution of reduced mycorrhizal dependence during plant invasion
(Ecological Society of America, 2009-04-01)Introduced species inevitably experience novel selection pressures in their new environments as a result of changes in mutualist and antagonist relationships. While most previous work has examined how escape from specialist ... -
Direct and Interactive Effects of Enemies and Mutualists on Plant Performance: A Meta-Analysis
(Ecological Society of America, 2007-04-01)Plants engage in multiple, simultaneous interactions with other species; some (enemies) reduce and others (mutualists) enhance plant performance. Moreover, effects of different species may not be independent of one another; ... -
Mycorrhizal Species Differentially Alter Plant Growth and Response to Herbivory
(Elsevier, 2007-01-01)Plants simultaneously interact with multiple organisms which can both positively and negatively affect their growth. Herbivores can reduce plant growth through loss of plant biomass and photosynthetic area, while plant ... -
Three-Way Interactions among Mutualistic Mycorrhizal Fungi, Plants, and Plant Enemies: Hypotheses and Synthesis
(University of Chicago Press, 2006-02)A number of studies have shown that an association with mycorrhizal fungi can alter the outcome of interactions between plants and their enemies. While the directions of these effects vary, their strength suggests the need ... -
Grassroots Ecology: Plant-Microbe-Soil Interactions as Drivers of Plant Community Structure and Dynamics
(Ecological Society of America, 2003-09-01)A growing body of research on plant–microbe interactions in soil is contributing to the development of a new, microbially based perspective on plant community ecology. Soil-dwelling microorganisms are diverse, and interactions ... -
Negative Frequency Dependence and the Importance of Spatial Scale
(Ecological Society of America, 2002-01-01)Issues of spatial scale are inherent in many ecological systems. This study uses a spatially explicit cellular automaton model to explore how the scale of dispersal interacts with the scale and strength of negative frequency ... -
Mechanisms of Plant Species Coexistence: Roles of Rhizosphere Bacteria and Root Fungal Pathogens
(Ecological Society of America, 2001-12-01)Two independent experiments were conducted to investigate the influence of rhizosphere bacteria on the growth of Anthoxanthum odoratum and Panicum sphaerocarpon. We tested whether host-specific populations of Bacillus ... -
Maintenance of Diversity Within Plant Communities: Soil Pathogens as Agents of Negative Feedback
(Ecological Society of America, 1998-07-01)The effect of soil pathogens on plant communities was investigated using four old-field perennial plant species and five isolates of a pathogenic oomycete in the genus Pythium. These Pythium strains were isolated from the ... -
Comparative anatomy within the genus Syringa
(University of Kansas, 1927) -
Euarchontan opsin variation brings new focus to Primate origins
(Molecular Biology and Evolution, 2016-04)Debate on the adaptive origins of primates has long focused on the functional ecology of the primate visual system. For example, it is hypothesized that variable expression of short- (SWS1) and middle-to-long-wavelength ... -
Electrodic voltages in the presence of dissolved sulfide: Implications for monitoring natural microbial activity
(2008-03)Abstract There is growing interest in the development of new monitoring strategies for obtaining spatially extensive data diagnostic of microbial processes occurring in the earth. Open-circuit potentials arising from ... -
Global patterns in predator-pret size relationships reveal size dependency of trophic transfer effciency
(Ecological Society of America, 2010-01-01)Predator–prey body size relationships influence food chain length, trophic structure, transfer efficiency, interaction strength, and the bioaccumulation of contaminants. Improved quantification of these relationships and ...