A study to determine the relationship between plant species and eight terrain variables and between thirty-one vegetation types
and the terrain variables was conducted in a 4, 000 square mile area
south and east of Tucson, Arizona. The eight terrain variables
included elevation, parent material, macrorelief, landform type,
drainage density,...
Golden-winged Warblers are facing population decline and increasing threats in the southern Appalachian Mountains. Experts believe that breeding habitat loss is one of the primary reasons for Golden-winged Warbler decline in the region. In northwestern North Carolina, research is ongoing to understand the availability of suitable breeding habitat for Golden-winged...
In situ light and dark planktonic and benthal respirometers were
used to measure the oxygen requirements of Yaquina estuary water
and benthal deposits. Respirometer devices were constructed so that
actual conditions of mixing could be simulated and benthal deposit
disturbance would be minimized.
A mathematical model of a benthal respirometer...
Several empirical formulas that may be used to estimate available
chilling are presented in this study. Many climatic parameters
were considered in the derivation of these formulas. One equation
employing only maximum and minimum temperatures had a coefficients
of correlation (R) and R² values of .978 and .957, respectively. This...
The first-hand market for wild-caught fish in Norway is subject to much uncertainty for both buyers and sellers. Factors such as changing quotas, seasonal variations in availability of important species, and sudden changes in market conditions creates instability in volumes and prices both on the demand and supply side. For...
Sea surface temperature (SST) and salinity of the Western Pacific Warm Pool (WPWP) reflect global climate effects such as the El Niño–Southern Oscillation phenomenon. However, reconstructions of past changes in the WPWP from the geologic record vary depending on the specific proxy record used. Here we develop a multiproxy record...
Most of the policy debate surrounding the actions needed to mitigate and adapt to anthropogenic climate change has been framed by observations of the past 150 years as well as climate and sea-level projections for the twenty-first century. The focus on this 250-year window, however, obscures some of the most...
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Paris, France. 21Department of Physics, Oxford University, Oxford OX1 3PU, UK.
*e-mail: clarkp
Most of the policy debate surrounding the actions needed to mitigate and adapt to anthropogenic climate change has been framed by observations of the past 150 years as well as climate and sea-level projections for the twenty-first century. The focus on this 250-year window, however, obscures some of the most...
Full Text:
3PU, UK. *e-mail: clarkp@onid.orst.edu 28
Consequences of twenty-first century policy for
multi