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Transfer and transformation of soil iron and implications for hydrogeomorpholocial changes in Naoli River catchment, sanjiang plain, Northeast China Transfer and transformation of soil iron and implications for hydrogeomorpholocial changes in Naoli River catchment, sanjiang plain, Northeast China

Wetland soils are characterized by alternating redox process due to the fluctuation of waterlogged conditions. Iron is an important redox substance, and its transfer and transformation in the wetland ecosystem could be an effective indicator for the environment changes. In this paper, we selected the Naoli River catchment in the Sanjiang Plain, Northeast China as the study area to...
Authors
J. Ming, L. Xianguo, W. Hongqing, Z. Yuanchun, W. Haitao

Multidisciplinary approaches to climate change questions Multidisciplinary approaches to climate change questions

Multidisciplinary approaches are required to address the complex environmental problems of our time. Solutions to climate change problems are good examples of situations requiring complex syntheses of ideas from a vast set of disciplines including science, engineering, social science, and the humanities. Unfortunately, most ecologists have narrow training, and are not equipped to bring...
Authors
Beth A. Middleton

Testing competing hypotheses for chronology and intensity of lesser scaup molt during winter and spring migration Testing competing hypotheses for chronology and intensity of lesser scaup molt during winter and spring migration

We examined chronology and intensity of molt and their relationships to nutrient reserves (lipid and protein) of Lesser Scaup (Aythya affinisK/i>) to test predictions of two competing hypotheses. The "staggered cost" hypothesis states that contour-feather molt is nutritionally costly and should not occur during nutritionally costly periods of the annual cycle unless adequate nutrients...
Authors
Michael J. Anteau, Andrea C.E. Anteau, Alan D. Afton

Daily MODIS data trends of hurricane-induced forest impact and early recovery Daily MODIS data trends of hurricane-induced forest impact and early recovery

We studied the use of daily satellite data from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors to assess wetland forest damage and recovery from Hurricane Katrina (29 August 2005 landfall). Processed MODIS daily vegetation index (VI) trends were consistent with previously determined impact and recovery patterns provided by the "snapshot" 25 m Landsat Thematic Mapper...
Authors
Elijah W. Ramsey, Joseph Spruce, Amina Rangoonwala, Yukihiro Suzuoki, James Smoot, Jerry Gasser, Terri Bannister

The role of the Everglades Mangrove Ecotone Region (EMER) in regulating nutrient cycling and wetland productivity in South Florida The role of the Everglades Mangrove Ecotone Region (EMER) in regulating nutrient cycling and wetland productivity in South Florida

The authors summarize the main findings of the Florida Coastal Everglades Long-Term Ecological Research (FCE-LTER) program in the EMER, within the context of the Comprehensive Everglades Restoration Plan (CERP), to understand how regional processes, mediated by water flow, control population and ecosystem dynamics across the EMER landscape. Tree canopies with maximum height
Authors
Victor H. Rivera-Monroy, Robert R. Twilley, Stephen E. Davis, Daniel L. Childers, Marc Simard, Randolph Chambers, Rudolf Jaffe, Joseph N. Boyer, David T. Rudnick, Keqi Zhang, Edward Castañeda-Moya, Sharon M. L. Ewe, Rene M. Price, Carlos Coronado-Molina, Michael Ross, Thomas J. Smith, Beatrice Michot, Ehab Meselhe, William Nuttle, Tiffany G. Troxler, Gregory B. Noe

The influence of the Atlantic Warm Pool on the Florida panhandle sea breeze The influence of the Atlantic Warm Pool on the Florida panhandle sea breeze

In this paper we examine the variations of the boreal summer season sea breeze circulation along the Florida panhandle coast from relatively high resolution (10 km) regional climate model integrations. The 23 year climatology (1979–2001) of the multidecadal dynamically downscaled simulations forced by the National Centers for Environmental Prediction–Department of Energy (NCEP‐DOE)...
Authors
Vasubandhu Misra, Lauren Moeller, Lydia Stefanova, Steven Chan, James J. O’Brien, Thomas J. Smith, Nathaniel Plant

Effects of harvest and climate on population dynamics of northern bobwhites in south Florida Effects of harvest and climate on population dynamics of northern bobwhites in south Florida

Context: Hunting-related (hereafter harvest) mortality is assumed to be compensatory in many exploited species. However, when harvest mortality is additive, hunting can lead to population declines, especially on public land where hunting pressure can be intense. Recent studies indicate that excessive hunting may have contributed to the decline of a northern bobwhite (Colinus virginianus)
Authors
V. Rolland, J.A. Hostetler, T.C. Hines, Fred A. Johnson, H. Franklin Percival, M.K. Oli

Transitions of interaction outcomes in a uni-directional consumer-resource system Transitions of interaction outcomes in a uni-directional consumer-resource system

A uni-directional consumer–resource system of two species is analyzed. Our aim is to understand the mechanisms that determine how the interaction outcomes depend on the context of the interaction; that is, on the model parameters. The dynamic behavior of the model is described and, in particular, it is demonstrated that no periodic orbits exist. Then the parameter (factor) space is shown...
Authors
Y. Wang, Donald L. DeAngelis

Effect of cryopreservation and in vitro culture of bovine fibroblasts on histone acetylation levels and in vitro development of hand-made cloned embryos Effect of cryopreservation and in vitro culture of bovine fibroblasts on histone acetylation levels and in vitro development of hand-made cloned embryos

In this study, the relative acetylation levels of histone 3 in lysine 9 (H3K9ac) in cultured and cryopreserved bovine fibroblasts was measured and we determined the influence of the epigenetic status of three cultured (C1, C2 and C3) donor cell lines on the in vitro development of reconstructed bovine embryos. Results showed that cryopreservation did not alter the overall acetylation...
Authors
L. Chacon, M.C. Gomez, J.A. Jenkins, S.P. Leibo, G. Wirtu, B.L. Dresser, C.E. Pope
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