AbstractFlow regulation effects on floodplain forests in the semi‐arid western United States are moderately well understood, whereas effects associated with changes in floodplain land use are poorly documented. We mapped land cover patterns from recent aerial photos and applied a classification sche

Research Article| March 01, 1957 APPRAISAL OF RIDGWAY AND GUNNISON "TILLITES," SOUTHWESTERN COLORADO FRANKLYN B VAN HOUTEN FRANKLYN B VAN HOUTEN PRINCETON UNIVERSITY, PRINCETON, N. J. Search for other works by this author on: GSW Google Scholar Author and Article Information FRANKLYN B VAN HOUTEN PR

Research Article| December 01, 1940 Audubon-Albion stock, Boulder County, Colorado ERNEST E. WAHLSTROM ERNEST E. WAHLSTROM Search for other works by this author on: GSW Google Scholar GSA Bulletin (1940) 51 (12_1): 1789–1820. https://doi.org/10.1130/GSAB-51-1789 Article history received: 23 Feb 1940

The effects of an accidentally introduced beetle Brachypterolus pulicarius on the growth and reproduction of its host, the invasive plant Linaria vulgaris, growing under field conditions across multiple years and sites in western Colorado, USA are studied.

AbstractPatterns of infection and prevalence result from complex interactions between hosts and parasites, the effects of which are likely to vary by species. We investigated the effects of age, sex and season on the likelihood of individual infection, and the effects of host population size, sex ra

Polyphenisms-alternative morphs produced through plasticity-can reveal the evolutionary and ecological processes that initiate and maintain diversity within populations. We examined lifetime fitness consequences of two morphs in a polyphenic population of Arizona tiger salamanders using a 27-year da

Abstract Terrestrial production and export of dissolved organic and inorganic carbon (DOC and DIC) to streams depends on water flow and biogeochemical processes in and beneath soils. Yet, understanding of these processes in a rapidly changing climate is limited. Using the watershed‐scale reactive‐tr

Little information is available on the use of areas enrolled in the Conservation Reserve Program (CRP) by Gunnison sage-grouse (Centrocercus minimus) or the impacts of grazing on their habitat selection and movement patterns. Using radiotelemetry, we monitored 13 Gunnison sage-grouse in San Juan Cou

Aspen forests are one of the most dynamic forest types in western North America, responding to chronic factors of competition for resources, as well as episodes of intense herbivory, drought, and fires. The interactions of these driving factors lead to varying age structures of aspen across landscap

AbstractMapping geographic mosaics of genetic variation and their consequences via genotype x environment interactions at large extents and high resolution has been limited by the scalability of DNA sequencing. Here, we address this challenge for cytotype (chromosome copy number) variation in quakin

The red foxes (Vulpes vulpes) indigenous to the mountains of the western United States are high-elevation specialists that could face range reduction due to climatic warming, as well as potential encroachment, loss of adaptive alleles, and displacement by introduced nonnative red foxes. We investiga

Whether an animal lives alone or in a group may have fitness consequences. Among yellow-bellied marmots (Marmota flaviventris), fitness is thought to be lower for noncolonial than for colonial females because juvenile survival, as indicated by trapping, is lower. Trapping, however, may not be an acc

Gunnison Sage-Grouse (Centrocercus minimus) is a species of concern for which little demographic information exists. To help fill this information gap, we investigated factors affecting nest success in two populations of Gunnison Sage-Grouse. We assessed the relative effects of (1) vegetation charac

It is found that plant traits had little effect on damage and pollination, but damage andpollination affected plant traits in both the treatment year and the subsequent year, and evidence of indirect effects between leaf herbivores and pollinators in both directions has not been previously demonstra

Shigeru Albert AE, Comparative Studies of Developmental Rates, Hibernation, and Food Plants in North American Colias (Lepidoptera, Pieridae), The American Midland Naturalist, Vol. 60, No. 1 (Jul., 1958), pp. 84-96

Burrowing mammals can be ecosystem engineers by increasing soil aeration and erosion and altering the structure of plant communities. Studies that characterize the constraints on the distributions of fossorial mammal disturbances to soil can help predict changes in ecosystem engineering under future