Human alterations to nutrient cycles[superscript 1,2] and herbivore communities³⁻⁷
are affecting global biodiversity dramatically². Ecological theory predicts
these changes should be strongly counteractive: nutrient addition
drives plant species loss through intensified competition for
light, whereas herbivores prevent competitive exclusion by increasing
ground-level light, particularly in productive systems[superscript 8,9]. Here we...
The critically endangered Maui's dolphin (Cephalorhynchus hectori maui) and the endangered Hector's dolphin (C. h. hectori) are endemic to the coastal waters of New Zealand, where their primary threat is fisheries-related mortality. The Maui's dolphin is among the most critically endangered cetaceans in the world, with its remnant population primarily...
In 2007, the City of Corvallis was issued a Phase II NPDES permit from the Oregon Department of Environmental Quality for non-point source pollution. In Corvallis, the majority of the stormwater conveyance system is separate from the sanitary sewer system. During a rain event, stormwater flows through pipes or over...
Precise chemical analyses of geological samples continue to play an
important role in geochemical research. During the past 10 years atomic
absorption spectrophotometry has become increasingly prominent as an
accurate and relatively simple analytical technique. The marine geochemistry
group at OST7 has used a Jarrel-Ash 82-820 atomic absorption
spectrophotometer (AAS)...
Vernal pools are ephemeral surface water wetlands with unique hydrology, ecology and species composition. Rare and endemic species rely on vernal pool habitat due to specialization traits the species possess because they are adapted to the extreme conditions. Many vernal pool basins have been topographically and hydrologically altered and are...
The eddy-covariance method often underestimates fluxes under stable, low-wind conditions at night when turbulence is not well developed. The most common approach to resolve the problem of nighttime flux underestimation is to identify and remove the deficit periods using friction-velocity (u*) threshold filters (u*[superscript Th]). This study modifies an accepted...
The sea offers a wide variety of potentially useful resources. Marine algae have been a rich source of structurally unique natural products showing diverse biological properties. The current need to develop new antifungal, antibiotic, anticancer and antiviral drugs has prompted intense research efforts into the discovery, isolation and structure determination...
A unified, self‐contained treatment of Wigner D functions, spin‐weighted spherical harmonics, and monopole harmonics is given, both in coordinate‐free language and for a particular choice of coordinates.
Measurements are made of the conductivity and Hall mobility of
liquid solutions of thallium-tellurium, in compositions ranging from
pure tellurium to 69.0 atomic percent thallium. At compositions on
the thallium-rich side of intrinsic composition (66.7 atomic percent
thallium) both the conductivity and Hall mobility are temperature
independent, and the data...