Climate-driven species range shifts and expansions are changing community composition, yet the functional consequences in natural systems are mostly unknown. By combining a 30-year survey of subalpine pond larval caddisfly assemblages with species-specific functional traits (nitrogen and phosphorus

Animals adapt to changing environments by behaving flexibly when solving problems. Traits, such as sex and age, and spe- cifically behavioral traits like persistence–the amount of time spent attempting to solve a problem, are positively associated with successful problem-solving. However, individual

For the past decade, the high-quality, relatively low-cost health care delivered in Grand Junction, Colorado, has led that community to outperform most others in the United States. Medicare patients in Grand Junction have fewer hospitalizations, shorter hospitalizations, and lower mortality rates af

I assessed the genetic differentiation of populations of Weidemeyer's admiral butterfly (Limenitis weidemeyerii) in central and eastern Colorado by using starch-gel electrophoresis. Wright's F-statistics indicated that there was significant differentiation, both within and between years, among the s

W. B. Watt, C. Kremen, P. Carter, Testing the `Mimicry' Explanation for the Colias `alba' Polymorphism: Patterns of Co-Occurrence of Colias and Pierine Butterflies, Functional Ecology, Vol. 3, No. 2 (1989), pp. 193-199

AbstractReproduction is thought to be costly for female mammals due to high energetic costs associated with pregnancy and lactation. Such costs of reproduction can be particularly high for younger females, who are less experienced and smaller than fully grown adults, and can manifest themselves with

The objective of the recent paper was to define practices to simultaneously maximize the benefits and minimize the potential unwanted consequences of PDA.

Climate change is likely to alter both flowering phenology and water availability for plants. Either of these changes alone can affect pollinator visitation and plant reproductive success. The relative impacts of phenology and water, and whether they interact in their impacts on plant reproductive s

Nutrients used in reproduction may come from adult feeding or reserves stored from the juvenile stage. The dynamics of allocation from these sources are predicted to differ among nutrient types, depending on the relative availability of each nutrient type from adult and juvenile feeding. Using radio

Background. Understanding the underlying factors that determine the relative abun- dance of plant species is critical to predict both biodiversity and ecosystem function. Biotic and abiotic factors can shape the distribution and the relative abundance of species across natural communities, greatly i

An endosymbiotic association has been demonstrated between Euglena and nymphs of three species of damselfly. The hindgut of the nymphs is inhabited by the euglenoid only during the winter. Symbiotic associations involving green euglenoids and insects are virtually unknown.

Individuals sometimes exhibit striking constancy to a single behaviour even when they are capable of short-term behavioural flexibility. Constancy enables animals to avoid costs such as memory constraints, but can also inflict significant opportunity costs through behaviour–environment mismatch. It

Research Article| November 01, 1953 GEOLOGY OF THE WEST-CENTRAL PART OF THE GUNNISON PLATEAU, UTAH CLYDE T HARDY; CLYDE T HARDY UTAH STATE AGRICULTURAL COLLEGE, LOGAN, UTAH; U. S. GEOLOGICAL SURVEY, WASHINGTON, D. C. Search for other works by this author on: GSW Google Scholar HOWARD D ZELLER HOWARD

Recent work has demonstrated that the presence or abundance of specific genotypes, populations, species

Lukacs, P. M., A. Seglund, and S. Boyle. 2015. Effects of Gunnison Sage-Grouse habitat treatment efforts on associated avifauna and vegetation structure. Avian Conservation and Ecology 10(2):7.http://dx.doi.org/10.5751/ACE-00799-100207

Phenological distributions are characterized by their central tendency, breadth, and shape, and all three determine the extent to which interacting species overlap in time. Pollination mutualisms rely on temporal co-occurrence of pollinators and their floral resources, and although much work has bee