Search Results - "Graham, Sean P."

Description of an extant salamander from the Gulf Coastal Plain of North America: The Reticulated Siren, Siren reticulata by Graham, Sean P, Kline, Richard, Steen, David A, Kelehear, Crystal

“…The salamander family Sirenidae is represented by four extant species that are restricted to North America. Sirens are abundant throughout the southern United…”
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Nestedness of Ectoparasite-Vertebrate Host Networks by Graham, Sean P, Hassan, Hassan K, Burkett-Cadena, Nathan D, Guyer, Craig, Unnasch, Thomas R

“…Determining the structure of ectoparasite-host networks will enable disease ecologists to better understand and predict the spread of vector-borne diseases. If…”
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Sexual Dimorphism in Head Shape, Relative Head Width, and Body Size of Eurycea aquatica and Eurycea cirrigera by Alcorn, Michael A, Deitloff, Jennifer, Graham, Sean P, Timpe, Elizabeth K

“…We examined variation in body size, head width, and head shape between males and females of two ecologically distinct species of plethodontid salamanders,…”
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Host reproductive phenology drives seasonal patterns of host use in mosquitoes by Burkett-Cadena, Nathan D, McClure, Christopher J W, Ligon, Russell A, Graham, Sean P, Guyer, Craig, Hill, Geoffrey E, Ditchkoff, Stephen S, Eubanks, Micky D, Hassan, Hassan K, Unnasch, Thomas R

“…Seasonal shifts in host use by mosquitoes from birds to mammals drive the timing and intensity of annual epidemics of mosquito-borne viruses, such as West Nile…”
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Phylogeography of the Brownback Salamander reveals patterns of local endemism in Southern Appalachian springs by Timpe, Elizabeth K., Graham, Sean P., Bonett, Ronald M.

“…The Appalachian Mountains of eastern North America are characterized by high faunal diversity and many endemic species, especially in the unglaciated southern…”
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New distribution records for amphibians and reptiles in eastern Chihuahua, Mexico by Hernandez, Tomas, Herr, Mark W., Stevens, Skyler, Cork, Karlee, Medina-Nava, Carolina, Vialpando, C.J., Warfel, Timothy, Fields, Noah, Brodie, Ciara, Graham, Sean P.

“…Distributions of amphibian and reptile species in northern Mexico are poorly understood when compared to adjacent areas of the southwestern United States. To…”
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Oestrus in a secretive species: endogenous estradiol varies throughout the shed cycle and influences attractiveness in wild northern watersnakes (Nerodia sipedon) by Jellen, Benjamin C, Graham, Sean P, Aldridge, Robert D, Earley, Ryan L

“…Oestrogen (e.g., 17β-estradiol, E2) stimulates vitellogenesis, female sexual behaviour, and induces sex pheromone production throughout vertebrates. Therefore,…”
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Corticosterone–immune interactions during captive stress in invading Australian cane toads (Rhinella marina) by Graham, Sean P., Kelehear, Crystal, Brown, Gregory P., Shine, Richard

“…Vertebrates cope with physiological challenges using two major mechanisms: the immune system and the hypothalamic pituitary–adrenal axis (e.g., the…”
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Stressed Snakes Strike First: Hormone Levels and Defensive Behavior in Free Ranging Cottonmouths ( Agkistrodon piscivorus ) by Herr, Mark W, Graham, Sean P, Langkilde, Tracy

“…Highlights • The relationship between a stress hormone and antipredator behavior was assessed. • Snakes with elevated baseline CORT were more likely to strike…”
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stress of scramble: sex differences in behavior and physiological stress response in a time-constrained mating system by Swierk, Lindsey, Graham, Sean P, Langkilde, Tracy

“…Iteroparous species maximize lifetime reproductive fitness by balancing current and future reproductive investments. In order to maximize fitness in the face…”
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Obtaining plasma to measure baseline corticosterone concentrations in reptiles: How quick is quick enough? by Tylan, Catherine, Camacho, Kiara, French, Susannah, Graham, Sean P., Herr, Mark W., Jones, Jermayne, McCormick, Gail L., O'Brien, Melissa A., Tennessen, Jennifer B., Thawley, Christopher J., Webb, Alison, Langkilde, Tracy

“…•The steroid hormone corticosterone, CORT, can indicate physiological stress in vertebrates.•Measuring baseline CORT is key to understanding animal responses…”
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The impacts of invaders: Basal and acute stress glucocorticoid profiles and immune function in native lizards threatened by invasive ants by Graham, Sean P, Freidenfelds, Nicole A, McCormick, Gail L, Langkilde, Tracy

“…Highlights ► Native lizards from sites invaded by fire ants have higher physiological stress levels. ► There is no concomitant decrease in immune function. ►…”
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A salamander's top down effect on fungal communities in a detritivore ecosystem by Walker, Donald M, Murray, Christopher M, Talbert, Doug, Tinker, Paul, Graham, Sean P, Crowther, Thomas W

“…The soil decomposer community is a primary driver of carbon cycling in forest ecosystems. Understanding the processes that structure this community is critical…”
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Presence of an invasive species reverses latitudinal clines of multiple traits in a native species by Thawley, Christopher J., Goldy‐Brown, Mark, McCormick, Gail L., Graham, Sean P., Langkilde, Tracy

“…Understanding the processes driving formation and maintenance of latitudinal clines has become increasingly important in light of accelerating global change…”
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Are Invasive Species Stressful? The Glucocorticoid Profile of Native Lizards Exposed to Invasive Fire Ants Depends on the Context by Graham, Sean P., Freidenfelds, Nicole A., Thawley, Christopher J., Robbins, Travis R., Langkilde, Tracy

“…Invasive species represent a substantial threat to native species worldwide. Research on the impacts of invasive species on wild living vertebrates has focused…”
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Defensive Strategies of Puerto Rican Dwarf Geckos (Sphaerodactylus macrolepis) Against Invasive Fire Ants by Kelehear, Crystal, Graham, Sean P., Langkilde, Tracy

“…Invasive species present challenges to native organisms and offer unique opportunities to examine adaptations to novel stressors. We studied behavioral…”
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Variation in the Slimy Salamander (Plethodon spp.) Skin and Gut-Microbial Assemblages Is Explained by Geographic Distance and Host Affinity by Walker, Donald M., Hill, Aubree J., Albecker, Molly A., McCoy, Michael W., Grisnik, Matthew, Romer, Alexander, Grajal-Puche, Alejandro, Camp, Carlos, Kelehear, Crystal, Wooten, Jessica, Rheubert, Justin, Graham, Sean P.

“…A multicellular host and its microbial communities are recognized as a metaorganism—a composite unit of evolution. Microbial communities have a variety of…”
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Serosurveillance of Eastern Equine Encephalitis Virus in Amphibians and Reptiles from Alabama, USA by GRAHAM, Sean P, HASSAN, Hassan K, CHAPMAN, Taryn, WHITE, Gregory, GUYER, Craig, UNNASCH, Thomas R

“…Eastern equine encephalitis virus (EEEV) is among the most medically important arboviruses in North America, and studies suggest a role for amphibians and…”
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How Frequently Do Cottonmouths (Agkistrodon piscivorus) Bask in Trees? by Graham, Sean P

“…A common belief in the southeastern United States is that Cottonmouths (Agkistrodon piscivorus) bask frequently in tree branches over the water's edge and are…”
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Detection of Eastern Equine Encephalomyelitis Virus RNA in North American Snakes by BINGHAM, Andrea M, GRAHAM, Sean P, BURKETT-CADENA, Nathan D, WHITE, Gregory S, HASSAN, Hassan K, UNNASCH, Thomas R

“…The role of non-avian vertebrates in the ecology of eastern equine encephalomyelitis virus (EEEV) is unresolved, but mounting evidence supports a potential…”
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