Výsledky vyhledávání - "Karel L. Rogers"

Stable Isotopes in Pocket Gopher Teeth as Evidence of a Late Matuyama Climate Shift in the Southern Rocky Mountains

Autor: Karel L. Rogers, Yang Wang

Publikováno v: Quaternary Research. 57:200-207

Previous work in the San Luis Valley of south-central Colorado and northern New Mexico at the Hansen Bluff and SAM Cave localities has allowed reconstruction of the paleoclimate in the region during the interval from ∼0.6 myr to ∼2.6 myr. Surface

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e57188e58c30ae8b06c2df6b9b135db
https://doi.org/10.1006/qres.2001.2309

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A Comparison of Stable Isotope Data With Pollen and Ostracod Faunal Data in Paleoclimate Reconstruction

Autor: Karel L. Rogers

Publikováno v: Climate Change in Continental Isotopic Records

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9963b483a293b83d99a52f9d31dc0d12
https://doi.org/10.1029/gm078p0203

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Pliocene and Pleistocene geologic and climatic evolution in the San Luis Valley of south-central Colorado

Autor: Gerald R. Smith, Karel L. Rogers, Richard G. Baker, Thure E. Cerling, Charles A. Repenning, Danny Katzman, E. E. Larson, Gary A. Smith, Penny E. Patterson, Kyger C. Lohmann, Gerald L. Mackie, Yang Wang

Publikováno v: Palaeogeography, Palaeoclimatology, Palaeoecology. 94:55-86

Sediments of the Alamosa Formation spanning the upper part of the Gauss and most of the Matuyama Chrons were recovered by coring in the high (2300 m) San Luis Valley of south-central Colorado. The study site is located at the northern end of the Rio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c740e4e2ca555047c4da9d1a95a9ba0
https://doi.org/10.1016/0031-0182(92)90113-j

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Pliocene and Pleistocene sedimentation in south-central Colorado: Opportunity for climate studies

Autor: E. E. Larson, Karel L. Rogers

Publikováno v: Quaternary International. :15-18

A well-dated Plio-Pleistocene stratigraphic sequence, ranging in age from 2.6 to 0.68 Ma, has been recovered from the Alamosa Formation in the San Luis Valley, south-central Colorado. The sequence is dated by magnetostratigraphy tied into the Huckleb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae149a5bedb191b701d7b97ab9714166
https://doi.org/10.1016/1040-6182(92)90004-l

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A Skeletochronological Assessment of Fossil and Recent Bufo cognatus from South-Central Colorado

Autor: Karel L. Rogers, Loree' Harvey

Publikováno v: Journal of Herpetology. 28:133

Age from skeletochronological analysis of phalanges, sex, weight, and snout-vent length were analyzed for a population of Bufo cognatus living in the high altitude San Luis Valley of south- central Colorado. Only one and two year old toads were found

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf3412912707560b697e029b0432ad55
https://doi.org/10.2307/1564611

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Observations on Sympatric Rana pipiens, R. blairi, and Their Hybrids in Eastern Colorado

Autor: Michelle Cousineau, Karel L. Rogers

Publikováno v: Journal of Herpetology. 25:114

vertisement by terrestrial salamanders. In D. Duvall, D. Miiller-Schwarze, and R. M. Silverstein (eds.), Chemical Signals in Vertebrates 4, pp. 191203. Plenum Press, New York. , J. M. GOY, M. TARVER, AND C. E. MARQUEZ. 1986. Salamander territoriality

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https://doi.org/10.2307/1564809

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Pleistocene high altitude amphibians and reptiles from Colorado (Alamosa local fauna; Pleistocene, Irvingtonian)

Autor: Karel L. Rogers

Publikováno v: Journal of Vertebrate Paleontology. 7:82-95

Amphibian and reptile fossils were recovered from a high-altitude (2300 meters) montarne desert in south-central Colorado. The locality spans nearly 0.2 million years during the Irvingtonian land mammal age and Nebraskan Glaciation, with three main t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63319453fadf4a954d53b6609f850650
https://doi.org/10.1080/02724634.1987.10011639

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A paleontological analysis of the Alamosa Formation (south-central Colorado--Pleistocene: Irvingtonian)

Autor: Karel L. Rogers

Publikováno v: Rio Grande rift: Northern New Mexico.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5f94011a546d76630f04659db3f072b
https://doi.org/10.56577/ffc-35.151

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Possible physiological and behavioral adaptations of herbivorous dinosaurs

Autor: Karel L. Rogers

Publikováno v: Journal of Vertebrate Paleontology. 5:371-372

Evidence of communal nesting and site fidelity in hadrosaurian dinosaurs from the Late Cretaceous Two Medicine Formation of Montana indicates a close parallel with herbivorous iguanine lizards. Raised nests prevented egg drowning, while communal habi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64ea053f960fdf8176475123bd7518ca
https://doi.org/10.1080/02724634.1985.10011872

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Facultative Metamorphosis in a Series of High Altitude Fossil Populations of Ambystoma tigrinum (Irvingtonian: Alamosa County, Colorado)

Autor: Karel L. Rogers

Publikováno v: Copeia. 1985:926

CHESSON, P. 1978. Predator-prey theory and variability. Ann. Rev. Ecol. Syst. 9:323-347. CURIO, E. 1976. The ethology of predation. Springer-Verlag, New York. DILL, L. M. 1983. Adaptive flexibility in the foraging behavior of fishes. Can. J. Fish. Aq

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https://doi.org/10.2307/1445243

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