Sean P Maher

Sean P Maher
Missouri State University | MSU · Department of Biology

PhD

About

40
Publications
12,383
Reads
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2,328
Citations
Citations since 2017
13 Research Items
1750 Citations
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Additional affiliations
July 2013 - June 2014
University of California, Berkeley
Position
  • PostDoc Position
March 2012 - June 2014
University of California, Berkeley
Position
  • PostDoc Position
July 2010 - March 2012
University of Georgia
Position
  • PostDoc Position
Education
August 2004 - May 2010
University of Kansas
Field of study
  • Ecology and Evolutionary Biology
August 2001 - August 2004
University of Michigan
Field of study
  • Resource Ecology and Management
August 1997 - December 2000
Villanova University
Field of study
  • Biology

Publications

Publications (40)
Article
Full-text available
Patterns in community composition across a landscape are the result of mechanistic responses and species interactions. Interactions between hosts and parasites have additional complexity because of the contingency of host presence and interactions among parasites. To assess the role of environmental changes within host and parasite communities, we...
Article
Full-text available
Wildlife and plant diseases can reduce biodiversity, disrupt ecosystem services and threaten human health. Emerging pathogens have displayed a variety of spatial spread patterns due to differences in host ecology, including diffusive spread from an epicentre (West Nile virus), jump dispersal on a network (foot-and-mouth disease), or a combination o...
Article
Full-text available
Closely related, ecologically similar species often have adjacent distributions, suggesting competitive exclusion may contribute to the structure of some natural communities. In systems such as island archipelagos, where speciation is often tightly associated with dispersal over oceanic barriers, competitive exclusion may prevent population establi...
Article
Full-text available
Plague, caused by the bacterium Yersinia pestis, is established across western North America, and yet little is known of what determines the broad-scale dimensions of its overall range. We tested whether its North American distribution represents a composite of individual host-plague associations (the "Host Niche Hypothesis"), or whether mammal hos...
Article
Full-text available
Climate refugia management has been proposed as a climate adaptation strategy in the face of global change. Key to this strategy is identification of these areas as well as an understanding of how they are connected on the landscape. Focusing on meadows of the Sierra Nevada in California, we examined multiple factors affecting connectivity using ci...
Article
Full-text available
Understanding use of space and habitat are central to animal ecology and provide insight into resource selection patterns. Despite a wide distribution throughout the southeastern U.S., research on Pygmy Rattlesnakes (Sistrurus miliarius) has been largely restricted to Florida populations. We studied S. miliarius in a managed forest landscape on a s...
Article
Full-text available
Managing wildlife populations in the face of global change requires regular data on the abundance and distribution of wild animals but acquiring these over appropriate spatial scales in a sustainable way has proven challenging. Here we present the data from Snapshot USA 2020, a second annual national mammal survey of the United States of America. T...
Article
Full-text available
Managing wildlife populations in the face of global change requires regular data on the abundance and distribution of wild animals, but acquiring these over appropriate spatial scales in a sustainable way has proven challenging. Here we present the data from Snapshot USA 2020, a second annual national mammal survey of the locations across 103 array...
Article
Full-text available
With the accelerating pace of global change, it is imperative that we obtain rapid inventories of the status and distribution of wildlife for ecological inferences and conservation planning. To address this challenge, we launched the SNAPSHOT USA project, a collaborative survey of terrestrial wildlife populations using camera traps across the Unite...
Preprint
Full-text available
White-nose syndrome has caused massive mortality in multiple bat species and spread across much of North America, making it one of the most destructive wildlife diseases on record. This has also resulted in it being one of the most well-documented wildlife disease outbreaks, making it possible to look for changes in the pattern of spatial spread ov...
Article
Full-text available
Much of the basic ecology of Ebolavirus remains unresolved despite accumulating disease outbreaks, viral strains and evidence of animal hosts. Because human Ebolavirus epidemics have been linked to contact with wild mammals other than bats, traits shared by species that have been infected by Ebolavirus and their phylogenetic distribution could sugg...
Article
Aim The Indonesian island of Sulawesi is home to thousands of endemic terrestrial animal species. Phylogeographical studies of some of these taxa revealed concordant distribution patterns (areas of endemism; AoEs), suggestive of a shared evolutionary or ecological mechanism driving divergence among various terrestrial taxa. Generally, AoEs have bee...
Poster
Full-text available
There is wide use of ecological niche models (ENMs) to create expectations for where species may occur, may have occurred, or will occur in geographic space. A common approach has been to obtain a set of environmental predictors with analogues available for forecasted and/or hindcasted estimates. These predictors are used to explain the variation i...
Article
Climate change refugia, areas buffered from climate change relative to their surroundings, are of increasing interest as natural resource managers seek to prioritize climate adaptation actions. However, evidence that refugia buffer the effects of anthropogenic climate change is largely missing. Focusing on the climate-sensitive Belding’s ground squ...
Article
Full-text available
There is an error in reference 3. The correct reference is: Stein BA, Glick P, Edelson N, Staudt A, editors. Climate-Smart Conservation: Putting Adaptation Principles into Practice. National Wildlife Federation. Washington, D.C.2014.
Article
Full-text available
Nine-banded armadillos (Dasypus novemcinctus) are nocturnal, semifossorial, insectivorous mammals that historically live in warm climates but have been moving northward over the past 150+ y. As armadillos move into more-temperate climates, behavioral adjustments occur in response to decreasing temperatures. Observations in northern latitudes have n...
Article
Full-text available
Refugia have long been studied from paleontological and biogeographical perspectives to understand how populations persisted during past periods of unfavorable climate. Recently, researchers have applied the idea to contemporary landscapes to identify climate change refugia, here defined as areas relatively buffered from contemporary climate change...
Conference Paper
Background/Question/Methods Massive amounts of ecological data are becoming available through large digitization collaborative projects. These data come from disparate sources with varied methodological biases and yet present the opportunity to address ecological questions at unprecedented spatial and temporal scales. Large scale anthropogenic pert...
Conference Paper
Full-text available
Background/Question/Methods Interest in the idea of climate change refugia has increased as natural resource managers seek targeted climate adaptation solutions. We used genetic and survey data to conduct a rare test of whether particular habitats are acting as refugia, buffering populations from recent climate change. We also examined whether hy...
Conference Paper
Background/Question/Methods Montane environments represent areas where climate change should impact species' ranges over short distances due to elevational gradients. However, topographically complex landscapes may produce refugia from climate change if habitat patches are sufficiently connected to promote metapopulation persistence. Focusing on...
Article
Full-text available
Intentional introductions of nonindigenous fishes are increasing globally. While benefits of these introductions are easily quantified, assessments to understand the negative impacts to ecosystems are often difficult, incomplete, or absent. Grass carp (Ctenopharyngodon idella) was originally introduced to the United States as a biocontrol agent, an...
Article
Full-text available
Understanding recent biogeographic responses to climate change is fundamental for improving our predictions of likely future responses and guiding conservation planning at both local and global scales. Studies of observed biogeographic responses to 20th century climate change have principally examined effects related to ubiquitous increases in temp...
Article
Identifying the boundary of a species’ niche from observational and environmental data is a common problem in ecology and conservation biology and a variety of techniques have been developed or applied to model niches and predict distributions. Here, we examine the performance of some pattern recognition methods as ecological niche models (ENMs). P...
Article
Pleistocene climate cycles and glaciations had profound impacts on taxon diversification in the Boreal Forest Biome. Using population genetic analyses with multilocus data we examined diversification, isolation, and hybridization in two sibling species of tree squirrels (Tamiasciurus douglasii and T. hudsonicus) with special attention to the geogra...
Conference Paper
Despite the wide use of grass carp as an effective control strategy for nuisance aquatic macrophytes, there has been a great deal of uncertainty in terms of its perceived risk to North American aquatic ecosystems. Recent observations of feral (and sometimes diploid) individuals in the Great Lakes (GL) Basin have spurred interest in re-evaluating th...
Article
Studies of biodiversity traditionally focus on charismatic megafauna. By comparison, little is known about parasite biodiversity. Recent studies suggest that co-extinction of host specific parasites with their hosts should be common and that parasites may even go extinct before their hosts. The few studies examining the relationship between parasit...
Conference Paper
Background/Question/Methods Invasive bighead carp (Hypophthalmichthys nobilis) and silver carp (Hypophthalmichthys molitrix) established in the lower Mississippi River and continue to spread into the Upper Mississippi Basin and threaten to invade the Laurentian Great Lakes. We sought to estimate the potential distribution of these species in Nort...
Conference Paper
Background/Question/Methods The perceived ecological impact of a species motivates policy and management. In the 1960’s, herbivorous grass carp (Ctenopharyngodon idella) was imported to the U.S. as a biocontrol tool for aquatic weeds prior to a thorough assessment of its potential risk to ecosystems. Shortly after its introduction, observations o...
Conference Paper
Background/Question/Methods Network models can be used to understand and predict the patterns of spread that occur during disease emergence or species invasions. These models are often biologically realistic in representing spread as taking place between discrete patches or individuals. They also can be computationally intensive and difficult to...
Conference Paper
Background/Question/Methods Machine learning provides a promising approach to ecological niche modeling (ENM). Particularly, we submit that the ecological problems of “presence-only” and “presence-absence” modeling may be mapped to the machine learning tasks of one-class and multiple class classification, respectively. We take advantage of this e...
Data
Voucher specimens measured for condylo-incisive length. (TXT)
Article
Aim Geographic distributions of species are constrained by several factors acting at different scales, with climate assumed to be a major determinant at broad extents. Recent studies, however, have challenged this statement and indicated that climate may not dominate among the factors governing geographic distributions of species. Here, we argue th...
Conference Paper
Background/Question/Methods Since introduction into California, plague has spread eastward through the Rocky Mountains. The enzootic cycle is one of near maintenance, where infection does not lead to widespread mortality, while epizootic cycles lead to local extirpations of hosts. We hypothesize that the ecological niche of Yersinia pestis is inde...
Article
Full-text available
A recent paper (1) purported to document negligible climatic determination among European bird species, with implications for forecasting range shifts in changing climates. However , only 12 of 100 species analyzed were endemic—thus, for the remaining 88% of test species, key limits with likely climatic determination were excluded, particularly eas...
Article
In this dissertation, I explore several aspects of the ecological dynamics of mammals and their pathogens and parasites. I approach this broad topic at various scales, using Ecological Niche Models, field surveys, and theoretical simulations. I focus on two pathogens, hantavirus and plague (Yersinia pestis), and a group of parasites, fleas, and add...

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