1979 …2018
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Research Output 1979 2018

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2018

Effects of drought on brood parasite body condition, follicle development, and parasitism: Implications for host-parasite dynamics

Buxton, V. L., Schelsky, W., Boves, T. J., Summers, S., Weatherhead, P. J. & Sperry, J. H., Oct 1 2018, In : Auk. 135, 4, p. 908-918 11 p.

Research output: Contribution to journalArticle

body condition
parasitism
parasite
drought
nest

Geographic variation in body size and sexual size dimorphism of north american ratsnakes (Pantherophis spp. s.l.)

Degregorio, B. A., Blouin-Demers, G., Carfagno, G. L. F., Gibbons, J. W., Mullin, S. J., Sperry, J. H., Willson, J. D., Wray, K. & Weatherhead, P. J., Jan 1 2018, In : Canadian journal of zoology. 96, 11, p. 1196-1202 7 p.

Research output: Contribution to journalArticle

dimorphism
geographical variation
body size
Elaphe obsoleta
cline
2017

Climatic and geographic predictors of life history variation in Eastern Massasauga (Sistrurus catenatus): A range-wide synthesis

Hileman, E. T., King, R. B., Adamski, J. M., Anton, T. G., Bailey, R. L., Baker, S. J., Bieser, N. D., Bell, T. A., Bissell, K. M., Bradke, D. R., Campa, H., Casper, G. S., Cedar, K., Cross, M. D., DeGregorio, B. A., Dreslik, M. J., Faust, L. J., Harvey, D. S., Hay, R. W., Jellen, B. C. & 25 others, Johnson, B. D., Johnson, G., Kiel, B. D., Kingsbury, B. A., Kowalski, M. J., Lee, Y. M., Lentini, A. M., Marshall, J. C., Mauger, D., Moore, J. A., Paloski, R. A., Phillips, C. A., Pratt, P. D., Preney, T., Prior, K. A., Promaine, A., Redmer, M., Reinert, H. K., Rouse, J. D., Shoemaker, K. T., Sutton, S., VanDeWalle, T. J., Weatherhead, P. J., Wynn, D. & Yagi, A., Feb 1 2017, In : PloS one. 12, 2, e0172011.

Research output: Contribution to journalArticle

Sistrurus catenatus
Population dynamics
Climate
Lakes
life history

Translocating ratsnakes: Does enrichment offset negative effects of time in captivity?

Degregorio, B. A., Sperry, J. H., Tuberville, T. D. & Weatherhead, P. J., Jan 1 2017, In : Wildlife Research. 44, 5, p. 438-448 11 p.

Research output: Contribution to journalArticle

captivity
snake
snakes
environmental enrichment
concealment behavior
2016

Do seasonal patterns of rat snake (Pantherophis obsoletus) and black racer (Coluber constrictor) activity predict avian nest predation?

DeGregorio, B. A., Weatherhead, P. J., Ward, M. P. & Sperry, J. H., Apr 1 2016, In : Ecology and Evolution. 6, 7, p. 2034-2043 10 p.

Research output: Contribution to journalArticle

Elaphe obsoleta
nest predation
snake
snakes
nest

Ecology and predation behavior of corn snakes (Pantherophis guttatus) on avian nests

Degregorio, B. A., Weatherhead, P. J. & Sperry, J. H., Apr 1 2016, In : Herpetological Conservation and Biology. 11, 1, p. 150-159 10 p.

Research output: Contribution to journalArticle

snake
nest
predation
maize
nests

Survival and behavior of juvenile black-capped vireos (Vireo atricapilla)

Dittmar, E. M., Cimprich, D. A., Sperry, J. H. & Weatherhead, P. J., Dec 1 2016, In : Wilson Journal of Ornithology. 128, 4, p. 775-783 9 p.

Research output: Contribution to journalArticle

gender
vocalization
birds
bird
radio
2015

Indirect effect of climate change: Shifts in ratsnake behavior alter intensity and timing of avian nest predation

DeGregorio, B. A., Westervelt, J. D., Weatherhead, P. J. & Sperry, J. H., Sep 4 2015, In : Ecological Modelling. 312, p. 239-246 8 p.

Research output: Contribution to journalArticle

nest predation
climate change
nest
warming
snake

Wait Until Dark? Daily Activity Patterns and Nest Predation by Snakes

DeGregorio, B. A., Sperry, J. H., Ward, M. P. & Weatherhead, P. J., Dec 1 2015, In : Ethology. 121, 12, p. 1225-1234 10 p.

Research output: Contribution to journalArticle

nest predation
activity pattern
snake
snakes
nest
2014

Brood parasitism of black-capped vireos: Frontline and post-laying behavioral responses and effects on productivity

Boves, T. J., Sperry, J. H., Comolli, K. & Weatherhead, P. J., Dec 1 2014, In : Journal of Field Ornithology. 85, 4, p. 364-378 15 p.

Research output: Contribution to journalArticle

brood parasitism
behavioral response
nest
nests
brood desertion

Facultative nocturnal behaviour in snakes: Experimental examination of why and how with Ratsnakes (Elaphe obsoleta) and Racers (Coluber constrictor)

DeGregorio, B. A., Sperry, J. H., Valente, D. P. & Weatherhead, P. J., Jan 1 2014, In : Canadian journal of zoology. 92, 3, p. 229-237 9 p.

Research output: Contribution to journalArticle

Elaphe obsoleta
nocturnal activity
snake
snakes
diel activity

Habitat selection by juvenile black-capped vireos following independence from parental care

Dittmar, E. M., Cimprich, D. A., Sperry, J. H. & Weatherhead, P. J., Jan 1 2014, In : Journal of Wildlife Management. 78, 6, p. 1005-1011 7 p.

Research output: Contribution to journalArticle

parental care
habitat preferences
habitat selection
riparian vegetation
vegetation

Moving massasaugas: Insight into rattlesnake relocation using sistrurus c. catenatus

Harvey, D. S., Lentini, A. M., Cedar, K. & Weatherhead, P. J., Jul 1 2014, In : Herpetological Conservation and Biology. 9, 1, p. 67-75 9 p.

Research output: Contribution to journalArticle

Sistrurus
relocation
snake
snakes
repatriation

Power lines, roads, and avian nest survival: Effects on predator identity and predation intensity

Degregorio, B. A., Weatherhead, P. J. & Sperry, J. H., Jan 1 2014, In : Ecology and Evolution. 4, 9, p. 1589-1600 12 p.

Research output: Contribution to journalArticle

power line
roads
nest
predation
nests

Snake predation on North American bird nests: Culprits, patterns and future directions

Degregorio, B. A., Chiavacci, S. J., Weatherhead, P. J., Willson, J. D., Benson, T. J. & Sperry, J. H., Jan 1 2014, In : Journal of Avian Biology. 45, 4, p. 325-333 9 p.

Research output: Contribution to journalArticle

snake
snakes
nest
predation
nests
2013

A test of radio-transmitter effects on parental investment and productivity in the Northern Cardinal

Barron, D. G., Weatherhead, P. J. & Brawn, J. D., Aug 1 2013, In : Condor. 115, 3, p. 669-676 8 p.

Research output: Contribution to journalArticle

parental investment
radio transmitters
radio
bird
productivity

Effects of temperature, moon phase, and prey on nocturnal activity in Ratsnakes: An automated telemetry study

Sperry, J. H., Ward, M. P. & Weatherhead, P. J., Mar 1 2013, In : Journal of Herpetology. 47, 1, p. 105-111 7 p.

Research output: Contribution to journalArticle

nocturnal activity
lunar phase
telemetry
snake
snakes

Evaluation of automated radio telemetry for quantifying movements and home ranges of snakes

Ward, M. P., Sperry, J. H. & Weatherhead, P. J., Jun 1 2013, In : Journal of Herpetology. 47, 2, p. 337-345 9 p.

Research output: Contribution to journalArticle

radiotelemetry
radio telemetry
snake
home range
snakes

Time in captivity affects foraging behavior of ratsnakes: Implications for translocation

DeGregorio, B. A., Weatherhead, P. J., Tuberville, T. D. & Sperry, J. H., 2013, In : Herpetological Conservation and Biology. 8, 3, p. 581-590 10 p.

Research output: Contribution to journalArticle

captivity
foraging behavior
translocation
snakes
foraging
2012

Discrepancy between factors affecting nestling growth and survival and maternal success in Common Grackles

Maddox, J. D. & Weatherhead, P. J., Feb 2012, In : Journal of Field Ornithology. 83, 1, p. 17-25 9 p.

Research output: Contribution to journalArticle

nestling
reproductive success
egg size
hatching
fledging

Effects of military activity on breeding birds

Barron, D. G., Brawn, J. D., Butler, L. K., Romero, L. M. & Weatherhead, P. J., Jul 1 2012, In : Journal of Wildlife Management. 76, 5, p. 911-918 8 p.

Research output: Contribution to journalArticle

Corvus brachyrhynchos
wildlife
breeding sites
birds
breeding

Experimental evidence that nesting ducks use mammalian urine to assess predator abundance

Eichholz, M. W., Dassow, J. A., Stafford, J. D. & Weatherhead, P. J., Oct 1 2012, In : Auk. 129, 4, p. 638-644 7 p.

Research output: Contribution to journalArticle

urine
ducks
predator
predators
nests

Implications of spatial patterns of roosting and movements of American robins for west Nile virus transmission

Benson, T. J., Ward, M. P., Lampman, R. L., Raim, A. & Weatherhead, P. J., Oct 1 2012, In : Vector-Borne and Zoonotic Diseases. 12, 10, p. 877-885 9 p.

Research output: Contribution to journalArticle

West Nile virus
Songbirds
Culicidae
Culex
Birds

Increased nest defence of upland-nesting ducks in response to experimentally reduced risk of nest predation

Dassow, J. A., Eichholz, M. W., Stafford, J. D. & Weatherhead, P. J., Jan 1 2012, In : Journal of Avian Biology. 43, 1, p. 61-67 7 p.

Research output: Contribution to journalArticle

nest predation
ducks
nest
highlands
nests

Individual and sex-based differences in behaviour and ecology of rat snakes in winter

Sperry, J. H. & Weatherhead, P. J., Jun 1 2012, In : Journal of Zoology. 287, 2, p. 142-149 8 p.

Research output: Contribution to journalArticle

snake
snakes
ecology
winter
gender

Latitudinal variation in thermal ecology of North American ratsnakes and its implications for the effect of climate warming on snakes

Weatherhead, P. J., Sperry, J. H., Carfagno, G. L. F. & Blouin-Demers, G., Jul 1 2012, In : Journal of Thermal Biology. 37, 4, p. 273-281 9 p.

Research output: Contribution to journalArticle

Snakes
Body Temperature Regulation
thermoregulation
Ecology
Climate

Mortality patterns and the cost of reproduction in a northern population of Ratsnakes, Elaphe obsoleta

Weatherhead, P. J., Blouin-Demers, G. & Sperry, J. H., Mar 2012, In : Journal of Herpetology. 46, 1, p. 100-103 4 p.

Research output: Contribution to journalArticle

Elaphe obsoleta
mortality
cost
snake
snakes

Range-wide analysis of eastern massasauga survivorship

Jones, P. C., King, R. B., Bailey, R. L., Bieser, N. D., Bissell, K., Campa, H., Crabill, T., Cross, M. D., Degregorio, B. A., Dreslik, M. J., Durbian, F. E., Harvey, D. S., Hecht, S. E., Jellen, B. C., Johnson, G., Kingsbury, B. A., Kowalski, M. J., Lee, J., Manning, J. V., Moore, J. A. & 12 others, Oakes, J., Phillips, C. A., Prior, K. A., Refsnider, J. M., Rouse, J. D., Sage, J. R., Seigel, R. A., Shepard, D. B., Smith, C. S., Vandewalle, T. J., Weatherhead, P. J. & Yagi, A., Nov 1 2012, In : Journal of Wildlife Management. 76, 8, p. 1576-1586 11 p.

Research output: Contribution to journalArticle

Sistrurus catenatus
survivorship
survival rate
wildlife management
radiotelemetry

Snake behavior and seasonal variation in nest survival of northern cardinals Cardinalis cardinalis

Sperry, J. H., Barron, D. G. & Weatherhead, P. J., Nov 1 2012, In : Journal of Avian Biology. 43, 6, p. 496-502 7 p.

Research output: Contribution to journalArticle

snake
snakes
nest
seasonal variation
nests
2011

Assortative mating in relation to plumage traits shared by male and female American Robins

Rowe, K. M. C. & Weatherhead, P. J., Nov 1 2011, In : Condor. 113, 4, p. 881-889 9 p.

Research output: Contribution to journalArticle

Turdus migratorius
assortative mating
plumage
breasts
tail

Thermal ecology of massasauga rattlesnakes (sistrurus catenatus) near their northern range limit

Harvey, D. S. & Weatherhead, P. J., Jan 1 2011, In : Canadian Journal of Zoology. 89, 1, p. 60-68 9 p.

Research output: Contribution to journalArticle

Sistrurus catenatus
thermoregulation
ecology
heat
body temperature
2010

Habitat selection as the mechanism for thermoregulation in a northern population of massasauga rattlesnakes(Sistrurus catenatus)

Harvey, D. S. & Weatherhead, P. J., Dec 2010, In : Ecoscience. 17, 4, p. 411-419 9 p.

Research output: Contribution to journalArticle

Sistrurus catenatus
thermoregulation
habitat preferences
habitat selection
temperature

Latitudinal variation in seasonal activity and mortality in ratsnakes (Elaphe obsoleta)

Sperry, J. H., Blouin-Demers, G., Carfagno, G. L. F. & Weatherhead, P. J., Jun 1 2010, In : Ecology. 91, 6, p. 1860-1866 7 p.

Research output: Contribution to journalArticle

Elaphe obsoleta
seasonal variation
mortality
snake
snakes

Linking snake behavior to nest predation in a Midwestern bird community

Weatherhead, P. J., Carfagno, G. L. F., Sperry, J. H., Brawn, J. D. & Robinson, S. K., Jan 1 2010, In : Ecological Applications. 20, 1, p. 234-241 8 p.

Research output: Contribution to journalArticle

nest predation
snake
nest
bird
predation risk

Ratsnakes and brush piles: Intended and unintended consequences of improving habitat for wildlife?

Sperry, J. H. & Weatherhead, P. J., Apr 1 2010, In : American Midland Naturalist. 163, 2, p. 311-317 7 p.

Research output: Contribution to journalArticle

wildlife habitats
snakes
pile
birds
habitat
2009

A third incubation tactic: Delayed incubation by american robins (Turdus migratorius)

Rowe, K. M. C. & Weatherhead, P. J., Jan 1 2009, In : Auk. 126, 1, p. 141-146 6 p.

Research output: Contribution to journalArticle

Turdus migratorius
incubation
predation
egg masses
urban areas

Diet of sistrurus catenatus in Ontario and Ohio: Effects of body size and habitat

Weatherhead, P. J., Knox, J. M., Harvey, D. S., Wynn, D., Chiucchi, J. & Gibbs, H. L., Dec 1 2009, In : Journal of Herpetology. 43, 4, p. 693-697 5 p.

Research output: Contribution to journalArticle

Sistrurus catenatus
Ontario
venom
snake
body size

Directional gene flow patterns in disjunct populations of the black ratsnake (Pantheropis obsoletus) and the Blanding's turtle (Emydoidea blandingii)

Howes, B. J., Brown, J. W., Gibbs, H. L., Herman, T. B., Mockford, S. W., Prior, K. A. & Weatherhead, P. J., Apr 1 2009, In : Conservation Genetics. 10, 2, p. 407-417 11 p.

Research output: Contribution to journalArticle

Turtles
Gene Flow
subpopulation
turtle
flow pattern

Does prey availability determine seasonal patterns of habitat selection in Texas ratsnakes

Sperry, J. H. & Weatherhead, P. J., Mar 1 2009, In : Journal of Herpetology. 43, 1, p. 55-64 10 p.

Research output: Contribution to journalArticle

prey availability
snake
habitat preferences
habitat selection
snakes

Effects of parasitic infection and radio-transmitters on condition, hematological characteristics and corticosterone concentrations in Texas ratsnakes

Sperry, J. H., Butler, L. K., Romero, L. M. & Weatherhead, P. J., Jun 1 2009, In : Journal of Zoology. 278, 2, p. 100-107 8 p.

Research output: Contribution to journalArticle

radio transmitters
corticosterone
parasitoses
Haemogregarina
snakes

Is nest predation on two endangered bird species higher in habitats preferred by snakes?

Sperry, J. H., Cimprich, D. A., Peak, R. G. & Weatherhead, P. J., 2009, In : Ecoscience. 16, 1, p. 111-118 8 p.

Research output: Contribution to journalArticle

nest predation
snake
endangered species
snakes
nest

Multi-year seasonal sex-allocation patterns in red-winged blackbirds (Agelaius phoeniceus)

Weatherhead, P. J., Jan 1 2009, In : Auk. 126, 1, p. 181-185 5 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
sex allocation
sex ratio
breeding season
fledging

Ratsnake response to bottomland flooding: Implications for avian nest predation

Carfagno, G. L. F. & Weatherhead, P. J., 2009, In : Acta Herpetologica. 4, 2, p. 191-194 4 p.

Research output: Contribution to journalArticle

lowlands
nests
predation
Elaphe obsoleta
birds

Seasonal sex allocation by Common Grackles? Revisiting a foundational study

Maddox, J. D. & Weatherhead, P. J., Nov 1 2009, In : Ecology. 90, 11, p. 3190-3196 7 p.

Research output: Contribution to journalArticle

sex allocation
starvation
food
Quiscalus quiscula
behavioral ecology

Sex differences in behavior associated with sex-biased mortality in an oviparous snake species

Sperry, J. H. & Weatherhead, P. J., Jan 1 2009, In : Oikos. 118, 4, p. 627-633 7 p.

Research output: Contribution to journalArticle

snake
gender differences
snakes
mortality
gender
2008

Egg size variation in birds with asynchronous hatching: Is bigger really better?

Maddox, J. D. & Weatherhead, P. J., Mar 1 2008, In : American Naturalist. 171, 3, p. 358-365 8 p.

Research output: Contribution to journalArticle

egg size
hatching
nestling
bird
birds

Energetics and space use: Intraspecific and interspecific comparisons of movements and home ranges of two Colubrid snakes

Carfagno, G. L. F. & Weatherhead, P. J., Mar 1 2008, In : Journal of Animal Ecology. 77, 2, p. 416-424 9 p.

Research output: Contribution to journalArticle

Elaphe
space use
snake
home range
snakes
Elaphe obsoleta
snake
habitat use
snakes
fitness

Parental care in response to natural variation in nest predation pressure in six sunfish (Centrarchidae: Teleostei) species

Cooke, S. J., Weatherhead, P. J., Wahl, D. H. & Philipp, D. P., Dec 1 2008, In : Ecology of Freshwater Fish. 17, 4, p. 628-638 11 p.

Research output: Contribution to journalArticle

Centrarchidae
nest predation
parental care
nests
predation

Prey-mediated effects of drought on condition and survival of a terrestrial snake

Sperry, J. H. & Weatherhead, P. J., Oct 1 2008, In : Ecology. 89, 10, p. 2770-2776 7 p.

Research output: Contribution to journalArticle

snake
snakes
drought
small mammal
small mammals