548 results — topic: Genetics & Evolution
Potentilla plot soil moisture for Cabin Clearing, Elk Meadows and Rainbow Meadows, 2019.
To understand parent-hybrid dynamics in cinquefoil (Potentilla) species in the Colorado Rocky Mountains, I am estimating environmental overlap among parents and hybrids, interbreeding among parents and hybrids, and hybrid population growth in multiple natural populations at NWT and (not included her
Potentilla demographic and environmental data for Rocky Mountains of Colorado (Niwot LTER & RMBL), 2018 - 2020.
To understand parent-hybrid dynamics in cinquefoil (Potentilla) species in the Colorado Rocky Mountains, I am estimating environmental overlap among parents and hybrids, interbreeding among parents and hybrids, and hybrid population growth in multiple natural populations at NWT and the Rocky Mountai
shorvath/MammalianMethylationConsortium: Mammalian methylation + universal pan mammalian clocks
This version includes the software packages from the Mammalian Methylation Consortium: 1- Genome coordinates for different species 2- R code for alignment and annotation 3- The array manifest 4- Details on probe design 5- R code for Sesame normalization 6- R code for universal pan-mammalian epigenet
Data for: Pollinator and habitat-mediated selection as potential contributors to ecological speciation in two closely related species
In ecological speciation, incipient species diverge due to natural selection that is ecologically based. In flowering plants, different pollinators could mediate that selection (pollinator-mediated divergent selection) or other features of the environment that differ between habitats of two species
Water Level Data from Wells PLM1 and PLM6 for the East River Watershed, Colorado
This dataset (Williams et al., 2020) contains the original un-QA/QC-ed water level data for PLM1 and PLM6 and has been obsoleted. The data contained within this dataset is not to be used. Refer to Faybishenko et al., 2022 (DOI: 10.15485/1866836) for the latest QA/QC-ed data available via ESS-DIVE.Th
Water Level Data from Wells PLM1 and PLM6 for the East River Watershed, Colorado
This dataset (Williams et al., 2020) contains the original un-QA/QC-ed water level data for PLM1 and PLM6 and has been obsoleted. The data contained within this dataset is not to be used. Refer to Faybishenko et al., 2022 (DOI: 10.15485/1866836) for the latest QA/QC-ed data available via ESS-DIVE.Th
Is Plant Fitness Proportional to Seed Set? An Experiment and a Spatial Model
Individual differences in fecundity often serve as proxies for differences in overall fitness, especially when it is difficult to track the fate of an individual's offspring to reproductive maturity. Using fecundity may be biased, however, if density-dependent interactions between siblings affect su
Does a foliar endophyte improve plant fitness under flooding?
The novel hypothesis that endophyte symbiosis promotes host fitness under flooded conditions, contributing to niche differentiation between the two bluegrass species is investigated, demonstrating an overall benefit of fungal symbiosis in this system.
Comparing clines in floral and vegetative traits along an elevation gradient in an <i>Ipomopsis</i> hybrid zone
Gene flow in hybrid zones acts as a barrier to speciation, yet we still see cases in which separate hybridizing species are maintained. Selection for different floral traits at each end of a hybrid zone by pollinators and for different vegetative traits by environmental gradients are two possible so
Testing for the genetic basis of cold tolerance in a wild mustard
Overwinter survival and cold tolerance are complex quantitative traits that are important in understanding adaptation to different environments. I evaluated 422 genotypes of Boechera stricta, originating form different geographic locations and elevations, in a common garden genome wide association s
Analyzing the effect of climate change on <i>Boechera stricta</i> seed germination and fitness along an elevational gradient
Climate change alters many biotic and abiotic factors in environments around the world. At higher elevations in particular, climate change brings warmer mean temperatures, reduced snowpack, earlier snowmelt, and more extreme drought. In this study, we analyzed the effect of early snow removal on Boe
Accounting for the nested nature of genetic variation across levels of organization improves our understanding of biodiversity and community ecology
Recent work has demonstrated that the presence or abundance of specific genotypes, populations, species
Strain diversity and host specificity in a specialized gut symbiont of honeybees and bumblebees
AbstractHost‐restricted lineages of gut bacteria often include many closely related strains, but this fine‐scale diversity is rarely investigated. The specialized gut symbiont Snodgrassella alvi has codiversified with honeybees (Apis mellifera) and bumblebees (Bombus) for millions of years. Snodgras
Solutions for archiving data in long-term studies - a reply to Whitlock et al.
The objective of the recent paper was to define practices to simultaneously maximize the benefits and minimize the potential unwanted consequences of PDA.
Morphological and physiological determinants of local adaptation to climate in Rocky Mountain butterflies
Flight is a central determinant of fitness in butterflies and other insects, but it is restricted to a limited range of body temperatures. To achieve these body temperatures, butterflies use a combination of morphological, behavioural and physiological mechanisms. Here, we used common garden (withou
Phenological change in a spring ephemeral: implications for pollination and plant fitness
Climate change has had numerous ecological effects, including species range shifts and altered phenology. Altering flowering phenology often affects plant reproduction, but the mechanisms behind these changes are not well-under- stood. To investigate why altering flowering phenology affects plant re
The effect of body size and habitat on the evolution of alarm vocalizations in rodents.
Fitness and hormonal correlates of social and ecological stressors of female yellow-bellied marmots.
The results suggest that elevated baseline FGM levels failed to mediate reproductive suppression in marmots, highlighting the importance of social status, body condition and predator abundance on determining reproductive success in highly seasonal breeders.
Evaluating genetic mechanisms and performance characteristics of alternative oilseed crops for on-farm biofuel production in Colorado
Dryland winter wheat (Triticum aestivum) cropping systems dominate most of the agricultural landscape in Colorado’s semi-arid eastern plains. Since this area’s climate is characterized by frequent heat and drought, it is important to maximize water use efficiency to make agricultural lands as produc
