Robert V. Horan
A5059304206- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Geology and Paleoclimatology Research
- Archaeology and ancient environmental studies
- Amphibian and Reptile Biology
- Insect and Arachnid Ecology and Behavior
- Ecology and Vegetation Dynamics Studies
- Stellar, planetary, and galactic studies
- Tree-ring climate responses
- Animal Behavior and Welfare Studies
- Insect and Pesticide Research
- Astronomy and Astrophysical Research
- Bat Biology and Ecology Studies
- Pleistocene-Era Hominins and Archaeology
- Satellite Image Processing and Photogrammetry
- Isotope Analysis in Ecology
- Forensic Entomology and Diptera Studies
- Effects of Environmental Stressors on Livestock
- Plant and animal studies
- Bird parasitology and diseases
- Fish Ecology and Management Studies
- Animal and Plant Science Education
- Zoonotic diseases and public health
- Turtle Biology and Conservation
- Agriculture Sustainability and Environmental Impact
Georgia Department of Natural Resources
2019-2024
University of Georgia
2011-2012
Savannah River National Laboratory
2011
Abstract With the accelerating pace of global change, it is imperative that we obtain rapid inventories status and distribution wildlife for ecological inferences conservation planning. To address this challenge, launched SNAPSHOT USA project, a collaborative survey terrestrial populations using camera traps across United States. For our first annual survey, compiled data all 50 states during 14‐week period (17 August–24 November 2019). We sampled at 1,509 trap sites from 110 arrays covering...
Abstract SNAPSHOT USA is a multicontributor, long‐term camera trap survey designed to mammals across the United States. Participants are recruited through community networks and directly website application ( https://www.snapshot-usa.org/ ). The growing Snapshot dataset useful, for example, tracking wildlife population responses land use, cover, climate changes spatial temporal scales. Here we present 2021 dataset, third national US. Data were collected 109 arrays included 1711 sites. total...
Managing wildlife populations in the face of global change requires regular data on abundance and distribution wild animals, but acquiring these over appropriate spatial scales a sustainable way has proven challenging. Here we present from Snapshot USA 2020, second annual national mammal survey USA. This project involved 152 scientists setting camera traps standardized protocol at 1485 locations across 103 arrays 43 states for total 52,710 trap-nights effort. Most (58) were also sampled...
Abstract Aim The assembly of species into communities and ecoregions is the result interacting factors that affect plant animal distribution abundance at biogeographic scales. Here, we empirically derive for mammals to test whether human disturbance has become more important than climate habitat resources in structuring communities. Location Conterminous United States. Time Period 2010–2021. Major Taxa Studied Twenty‐five mammals. Methods We analysed data from 25 mammal recorded by camera...
Nest guarding is rarely observed among reptiles. Specifically, turtles and tortoises are generally perceived as providing no nest protection once the eggs laid. Here, we describe observations of by female gopher (Gopherus polyphemus).
ABSTRACT We sampled individual growth rings from three ancient remnant bald cypress ( Taxodium distichum ) trees a massive buried deposit at the mouth of Altamaha River on Georgia Coast to determine best technique for radiocarbon 14 C) dating pretreatment. The results our comparison traditional ABA pretreatment and holocellulose α-cellulose fractions show no significant differences among pretreatments (<1 sigma) thereby suggesting that will prove sufficient development high-resolution C...