Alexander "Sasha C. Keyel

Alexander "Sasha C. Keyel
Wadsworth Center, NYS Department of Health

PhD

About

14
Publications
8,344
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660
Citations

Publications

Publications (14)
Article
Full-text available
West Nile virus (WNV; Flaviviridae: Flavivirus) is a widely distributed arthropod-borne virus that has negatively affected human health and animal populations. WNV infection rates of mosquitoes and human cases have been shown to be correlated with climate. However, previous studies have been conducted at a variety of spatial and temporal scales, an...
Article
Noise is a globally pervasive pollutant that can be detrimental to a range of animal species, with cascading effects on ecosystem functioning. As a result, concern about the impacts and expanding footprint of anthropogenic noise is increasing along with interest in approaches for how to mitigate its negative effects. A variety of modeling tools hav...
Article
We introduce the open-source Sound Mapping Tools (SMT, implemented in ArcGIS with the Spatial Analyst extension) for use in terrestrial outdoor sound propagation modeling. SMT includes three sound propagation models: an updated version of SPreAD-GIS, based on the System for Prediction of Acoustic Detectability model; NMSIMGIS, a GIS implementation...
Preprint
Noise pollution is detrimental to a diversity of animal species and degrades natural areas, raising concern over the expanding footprint of anthropogenic noise on ecosystems. To guide management of noise sources, modeling tools have been developed to quantify noise levels across landscapes. We demonstrate how to model anthropogenic noise using soun...
Article
Land-use intensification is a major driver of biodiversity loss. Alongside reductions in local species diversity, biotic homogenization at larger spatial scales is of great concern for conservation. Biotic homogenization means a decrease in β-diversity (the compositional dissimilarity between sites). Most studies have investigated losses in local (...
Article
Full-text available
Oil palm plantations have expanded rapidly in recent decades. This large-scale land-use change has had great ecological, economic, and social impacts on both the areas converted to oil palm and their surroundings. However, research on the impacts of oil palm cultivation is scattered and patchy, and no clear overview exists. We address this gap thro...
Article
The responses of species and populations to changes in the environment (e.g. changes in climate and land use) are often complex and difficult to predict. We have created the SpatialDemography model (R package: spatialdemography). The model is a spatially explicit, stage-structured, matrix-based metacommunity model, with the potential for modeling s...
Article
Quantifying functional trait diversity has provided important new insights for understanding ecosystem processes and functioning. Functional diversity is often partitioned into three components, richness, evenness, and divergence. Currently, a convex hull is used as a measure of multivariate richness, but this approach has some serious limitations....
Article
Full-text available
In some species, habitat edges (ecotones) affect nest-site selection and nesting success. Openness, or how visually open a habitat is, has recently been shown to influence grassland bird density and may affect nest-site selection, possibly by reducing the risk of predation on adults, nests, or both. Because edge and openness are correlated, it is p...
Article
Full-text available
Recent research has shown repeatable individual variability in temperament traits. We tested the hypotheses that individual Bobolinks (Dolichonyx oryzivorus) vary consistently in their response to predators, a temperament trait, and that this individual variation is associated with breeding-site selection. Specifically, we tested whether measures o...
Article
Full-text available
Area sensitivity, species being disproportionately present on larger habitat patches, has been identified in many taxa. We propose that some apparently area-sensitive species are actually responding to how open a habitat patch is, rather than to patch size. We tested this hypothesis for Bobolinks (Dolichonyx oryzivorus) by comparing density and occ...
Article
Here we examine dispersal, metrosis, and claustrality in the seed-harvester ant Pogonomyrmex salinus at an unusually large mating aggregation. We found that mode of queen dispersal from the mating aggregation is not a function of queen mass and that wing damage among queens was relatively rare. P. salinus is haplometrotic in the field and foundress...

Questions

Question (1)
Question
I am studying species-specific hearing ability across taxa in order to better understand the effects of anthropogenic noise on animals. I don't have a background in acoustics or audiology, and I'm looking for something that can get me up to speed on the major structures and differences across all taxa that have ears or other airborne-based-sound hearing structures.

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