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- Publications
- Influence
Assessing Avian Diets Using Stable Isotopes I: Turnover of 13C in Tissues
- K. Hobson, R. G. Clark
- Biology
- 1 February 1992
Studies of birds that use stable isotopes as dietary tracers require estimates of how quickly stable isotopes in tissues are replaced by isotopes derived from the diet. However, isotopic turnover… Expand
Assessing Avian Diets Using Stable Isotopes II: Factors Influencing Diet-Tissue Fractionation
- K. Hobson, R. G. Clark
- Biology
- 1 February 1992
Studies using stable-isotope analysis to infer diet require a knowledge of how stable-isotope ratios in consumer tissues are related to dietary values. We determined 61'3C and 6'5N diet-tissue… Expand
Stable-Nitrogen Isotope Enrichment in Avian Tissues Due to Fasting and Nutritional Stress: Implications for Isotopic Analyses of Diet
- K. Hobson, R. Alisauskas, R. G. Clark
- Biology
- 1 May 1993
Studies using measurements of61'5N to delineate diet or trophic level in natural ecosystems are based on the premise that 6'5N values in consumer tissues can be reliably correlated with those in the… Expand
A communal catalogue reveals Earth’s multiscale microbial diversity
- L. Thompson, J. Sanders, +301 authors Hongxia Zhao
- Biology, Medicine
- Nature
- 1 November 2017
Our growing awareness of the microbial world’s importance and diversity contrasts starkly with our limited understanding of its fundamental structure. Despite recent advances in DNA sequencing, a… Expand
Turnover of 13C in cellular and plasma fractions of blood: implications for nondestructive sampling in avian dietary studies
- K. Hobson, R. G. Clark
- Biology
- 1 July 1993
AVIAN HABITAT SELECTION: PATTERN FROM PROCESS IN NEST-SITE USE BY DUCKS?
- R. G. Clark, Dave Shutler
- Biology
- 1999
Patterns of habitat use in animals presumably have evolved in response to diverse selective processes, so we first examined whether the theory of natural selection formed the conceptual framework for… Expand
Single-shot readout of an electron spin in silicon
- A. Morello, J. Pla, +13 authors A. Dzurak
- Physics, Medicine
- Nature
- 13 March 2010
The size of silicon transistors used in microelectronic devices is shrinking to the level at which quantum effects become important. Although this presents a significant challenge for the further… Expand
Risk-taking by female ducks: intra- and interspecific tests of nest defense theory
- M. Forbes, R. G. Clark, Patrik J. Weatherhead, T. Armstrong
- Biology
- Behavioral Ecology and Sociobiology
- 1 February 1994
We tested several predictions of nest defense theory by observing variation in flushing distance and probability of nest abandonment within and between six species of waterfowl. In these species,… Expand
Patterns of reproductive effort and success in birds: path analyses of long-term data from European ducks
- P. Blums, R. G. Clark, A. Mednis
- Biology
- 1 March 2002
Summary
1
We tested ecological hypotheses about timing of breeding and reproductive effort in birds, by analysing > 15-year data sets for individually marked females in three species of Latvian… Expand
CAUSES AND CONSEQUENCES OF TREE SWALLOW (TACHYCINETA BICOLOR) DISPERSAL IN SASKATCHEWAN
- Dave Shutler, R. G. Clark
- Biology
- 1 July 2003
Abstract Poor breeding success often increases dispersal, but there is conflicting evidence about the putative adaptive benefits of dispersal behavior. Thus, observational and experimental data were… Expand