The cumulative cost of reproduction hypothesis predicts that reproductive costs accumulate over an individual’s reproductive lifespan. While short-term costs have been extensively explored, the prevalence of cumulative long-term costs and the circumstances under which such costs occur alongside or i

Code as implemented in the paper "Transient LTRE analysis reveals the demographic and trait mediated processes that buffer population growth"

Human activities have substantially increased atmospheric nitrogen (N) deposition in ecosystems worldwide, often leading to higher plant quality for herbivores and greater herbivory. Predators frequently suppress herbivores and indirectly benefit plants via ‘trophic cascades’, and the strength of th

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SUMMARY. 1. Microhabitat preferences of predatory stoneflies and four prey taxa were assessed by taking benthic samples along a hydraulic gradient in a Black Forest stream in West Germany. Densities of predator and prey species were estimated at twenty‐one hydraulic regimes.2. Enclosures containing

During summers 1984, 1985, and 1988 we tested the effects of stainless steel mesh enclosures on the microhabitat and composition of the invertebrate community (community structure) at a third-order site on the East River, Gunnison County, Colorado. Comparisons of substrate composition, interstitial

White adipose tissue biopsies and plasma samples were obtained from hibernating yellow-bellied marmots (Marmota flaviventris) maintained in the laboratory. In addition, biopsies and plasma samples were obtained from normothermic animals in the field and laboratory. Measurement of plasma free fatty a

Using pairs of pollen donors, I analyzed the growth of pollen tubes growing in different channels of the same style in Erythronium grandiflorum. After 24 hr the length of pollen tubes of randomly selected pollen donors was affected by the presence of other donors. The mean pollen tube lengths of don

We present four lines of evidence that the magnitude of prey exchange (=immigration/emigration) among substrate patches has an overwhelming influence on the perceived effects of predators on prey populations. (1) An extensive review of the literature on predation effects in benthic and littoral fres

In July, cessation of territorial activity was accompanied by a regular upward drift of dawn weight, suggesting that weight had been regulated previously as a balance between expenditure and intake, perhaps without involving set-points.

Joe Danni. August 21, 1980. Homestake Mining Company.

Margaret A. Koperski. 1980.

Colorado Land Use Commission Staff. November 16, 1972.

AMAX inc. 1980.