Functional trait diversity determines if ecosystem processes are sensitive to shifts in species abundances or composition. For example, trait variation suggests detritivores process detritus at different rates and make different contributions to whole- assemblage processing, which could be sensitive

The 1922 Colorado River Compact ignored available science and overallocated the river’s water, a decision whose effects reverberate today. Now there’s an opportunity to get things right.

Click to increase image sizeClick to decrease image size Additional informationNotes on contributorsTom RosemeyerTom Rosemeyer is the owner of Red Mountain Exploration and has mined and collected minerals in the San Juan Mountains for the last twenty years.

Abstract Mountains create and enhance their own clouds, which both scatter and absorb shortwave radiation from the sun and absorb and re‐emit land surface and atmospheric longwave radiation. However, the impacts of clouds on the surface radiation balance in high elevation snowy mountain terrain are

When the editor-in-chief solicited historical perspective pieces based on old articles from The American Naturalist, the choice became easy because it let me focus on two 1970s articles that transformed the field I work in, realigned my own thinking, and showed me the direction of the next 30 years

Yellow-bellied marmots, Marmota flaviventer , are facultatively social and may form multigenerational societies, which are characterized by individuals sharing and defending space, possessing the ability to distinguish group members from outsiders and potentially persisting for many generations. I r

N the early development of a country rivers are useful mainly as avenues of travel. They are highways to the interior which lure the adventurer and the pioneer. Later, when the land becomes settled, they may or may not retain this primal use. Now protection is demanded from the ravages of the river,

In group-living species, reproductive variation among individuals of the same sex is widespread. By identifying the mechanisms underlying this reproductive skew, we gain fundamental insights into the evolution and maintenance of sociality. A common mechanism, social control, is typically studied by

Abstract Oxidative weathering of sedimentary rocks plays an important role in the global carbon cycle. Rhenium (Re) has been proposed as a tracer of rock organic carbon (OC petro ) oxidation. However, the sources of Re and its mobilization by hydrological processes remain poorly constrained. Here, w

Crop ScienceVolume 45, Issue 1 cropsci2005.0413 p. 413-413 Registrations Of Cultivars Registration of ‘Grand Mesa’ Pinto Bean M.A. Brick, Corresponding Author M.A. Brick mbrick@lamar.colostate.edu Dep. of Soil and Crop Sciences, Colorado State Univ., Ft. Collins, CO, 80523Corresponding author (mbric

Floodplains are critical terrestrial–aquatic interfaces that act as hotspots of organic carbon (OC) cycling, regulating ecosystem carbon storage as well as export to riverine systems. Within floodplain sediments, regular flooding and textural gradients interact to create dynamic redox conditions. Wh

Abstract Translocations have been used as a management tool for the federally threatened Gunnison sage‐grouse ( Centrocercus minimus ) but have not been rigorously evaluated. We estimated survival of translocated Gunnison sage‐grouse during the first year following release. Survival rates differed a

Adaptation of E. minimus to the semiarid habitat has involved changes in response to acute and chronic heat and water stress which increase the time the chipmunks can survive exposures to high ambient temperature, regardless of water availability.

Life histories of three species of Corixidae found only at altitudes over 2800 m were compared. The number of generations per year varied with altitude. Callicorixa audeni Hung. and Cenocorixa bifida Hung. had two or more generations a summer in montane ponds (below 3100 m) and only one generation a

The confused taxonomic history of prunophilus (Papilionaceae) is discussed and its affinities with the morphologically similar L. ammophilus and other putative relatives within the L. ornatus complex and morphologically similar complexes are elucidated. Chemosystematic evidence of alkaloid compariso