Journal Article Acidification and Salamander Recruitment Get access John Harte, John Harte Energy and Resources Group, University of California, Berkeley, CA 94720 Search for other works by this author on: Oxford Academic Google Scholar Erika Hoffman Erika Hoffman Energy and Resources Group, Univers

1. The abundance of insect herbivores is mediated by interactions with higher and lower trophic levels. This research asks (i) how phenological change across trophic levels affects host plant quality and selection for aphids, and (ii) what higher trophic level mechanisms drive aphid abundance. 2. Li

Gunnison prairie dogs have been shown to produce alarm calls that incorporate information about predators [Slobodchikoff et al., Anim. Behav. 42, 713–719 (1991)], such as the species of predator and also a description of the color and general size of the predator. The alarm calls contain a series of

AbstractEffects of pre‐seed‐dispersal processes on offspring vigor were examined in Erythronium grandiflorum using manipulations of the number of pollen donors contributing to the pollen pool and comparisons of means and variances in offspring growth measurements. There were no effects of the number

ABSTRACT: Tertiary rocks more than 5,000 feet thick outcrop in central South Park, Colorado; they include continental sediments and volcanics. These rocks have been previously divided into several formations, from youngest to oldest: Denver Formation (Eocene), and lower andesite of the Thirtynine Mi

AbstractThe persistence of threatened wildlife species depends on successful conservation and restoration of habitats, but climate change and other stressors make these tasks increasingly challenging. Applying climate change vulnerability analyses to contemporary wildlife management can be difficult

Riparian floodplains are important regions for biogeochemical cycling, including nitrogen. Here, we present MAGs from nitrifying microorganisms, including ammonia-oxidizing archaea (AOA) and comammox bacteria from Slate River (SR) floodplain sediments (Crested Bute, CO, US). Addi�onally, we explore MA

It is unclear how environmental change influences standing genetic variation in wild populations. Here, we characterised envi- ronmental conditions that protect versus erode polymorphic chemical defences in Boechera stricta (Brassicaceae), a short-­lived perennial wildflower. By manipulating drought

Abstract Ligusticum porteri (osha) is an important wild-harvested medicinal plant. Populations of this plant occur in meadows and forest understories in the subalpine and montane zones of the Rocky Mountains. We examined variation in the bioactive compounds of 44 methanolic extracts of L. porteri ro

The Gunnison tillite was first described in a paper presented by the present authors at the 1924 December meeting of the Geological Society of America. Further geologic and physiographic field studies have established a somewhat widespread distribution of this formation and appear to justify a close

Abstract I studied the relationships among energy availability, female visitation rates, and male display rates in Broad-tailed Hummingbirds (Selasphorus platycercus). Feeders contained 10%, 20%, or 30% sucrose solutions; female visitation rates and male hummingbird display rates were measured. Disp

In the absence of incontrovertible performance data in support of, or opposition to, school vouchers, court decisions on their legality become increasingly important. Analysis of legal challenges provides a rich opportunity for scholars and policymakers to follow arguments for or against their posit

Responses of natural populations to climate change are driven by how multiple climatic and biotic factors affect survival and reproduction, and ultimately shape population dynamics. Yet, despite substantial progress in synthesizing the sensitivity of populations to climatic variation, comparative st