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12. Book Reviews

Author

Clarke, S.C., Foster, J.R., Cook, D.J., Knight, R., Overfield, J.A., McLellan, D.S., Moore, G.W., Munro, R.I., Pitt, S.J., and Hardy, S.P.

Subjects
Microbiology (medical), Infectious Diseases, Biochemistry (medical), Clinical Biochemistry, Immunology, Immunology and Allergy, Microbiology
Published
2006
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14. The oldest Cretaceous North American sauropod dinosaur.

Author

D'Emic, M.D. and Foster, J.R.

Subjects
*CRETACEOUS Period, *SAURISCHIA, *MESOZOIC Era, *SPATIOTEMPORAL processes, *JURASSIC Period
Abstract

Sauropod dinosaurs have been found in sediments dating to most of the Cretaceous Period on all major Mesozoic landmasses, but this record is spatiotemporally uneven, even in relatively well-explored North American sediments. Within the 80 million-year-span of the Cretaceous, no definitive sauropod occurrences are known in North America from two ca. 20–25 million-year-long gaps, one from approximately the Berriasian–Barremian and the other from the mid-Cenomanian–late Campanian. Herein, we present an undescribed specimen that was collected in the middle part of the twentieth century that expands the known spatiotemporal distribution of Early Cretaceous North American sauropods, partially filling the earlier gap. The material is from the Berriasian–Valanginian-aged (ca. 139 Ma) Chilson Member of the Lakota Formation of South Dakota and appears to represent the only non-titanosauriform from the Cretaceous of North America or Asia. It closely resemblesCamarasaurusand may represent a form closely related to that genus that persisted across the Jurassic–Cretaceous boundary. [ABSTRACT FROM AUTHOR]

Published
2016
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29. When galaxies go wrong.

Author

Eicher, D.J. and Foster, J.R.

Subjects
*ASTRONOMICAL photography
Abstract

Discusses how high-resolution, long-exposure amateur astrophotographs are revealing a universe of galaxies with twisted and distorted lives. Several examples that explore a hidden world of galaxies gone wrong.

Published
1991

50. Evidence for a recent increase in forest growth is questionable

Author

Jodi A. Forrester, Jane R. Foster, Julia I. Burton, Robert M. Scheller, Feng Liu, David J. Mladenoff, Jordan D. Muss, Francesco Maria Sabatini, Foster J.R., Burton J.I., Forrester J.A., Liu F., Muss J.D., Sabatini F.M., Scheller R.M., and Mladenoff D.J.

Subjects
Biomass (ecology), Multidisciplinary, Ecology, Range (biology), Atmosphere, Climate Change, Temperature, Climate change, Carbon Dioxide, Atmospheric sciences, Trees, Environmental science, Biomass, Letters, Seasons, Tree
Abstract

Forests and their soils contain the majority of the earth's terrestrial carbon stocks. Changes in patterns of tree growth can have a huge impact on atmospheric cycles, biogeochemical cycles, climate change, and biodiversity. Recent studies have shown increases in biomass across many forest types. This increase has been attributed to climate change. However, without knowing the disturbance history of a forest, growth could also be caused by normal recovery from unknown disturbances. Using a unique dataset of tree biomass collected over the past 22 years from 55 temperate forest plots with known land-use histories and stand ages ranging from 5 to 250 years, we found that recent biomass accumulation greatly exceeded the expected growth caused by natural recovery. We have also collected over 100 years of local weather measurements and 17 years of on-site atmospheric CO(2) measurements that show consistent increases in line with globally observed climate-change patterns. Combined, these observations show that changes in temperature and CO(2) that have been observed worldwide can fundamentally alter the rate of critical natural processes, which is predicted by biogeochemical models. Identifying this rate change is important to research on the current state of carbon stocks and the fluxes that influence how carbon moves between storage and the atmosphere. These results signal a pressing need to better understand the changes in growth rates in forest systems, which influence current and future states of the atmosphere and biosphere.

Published
2010

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