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Your search keyword '"Pearson, R. G."' showing total 274 results
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274 results on '"Pearson, R. G."'

34. Validation of species-climate impact models under climate change

Author

Araujo, M. B., Pearson, R. G., Thuiller, W., Erhard, M., Biodiversity Research Group, School of Geography and the Environment [Oxford] (SoGE), University of Oxford [Oxford]-University of Oxford [Oxford], Biogeography and Conservation Laboratory, The Natural History Museum, Macroecology and Conservation Unit, University of Évora [Portugal], Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Climate Change Research Group, South African National Biodiversity Institute, Institute for Meteorology and Climate Research (IMK), and Karlsruhe Institute of Technology (KIT)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [SDE.MCG]Environmental Sciences/Global Changes, [SDV.BID]Life Sciences [q-bio]/Biodiversity, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

39. Individual differences in human annoyance response to noise

Author

Pearson, R. G, Hart, F. D, and Obrien, J. F

Subjects
Behavioral Sciences
Abstract

Individual variations in annoyance and in susceptibility to noise were studied to establish a finer definition of the ingredients of the human annoyance response. The study involved interactions among a heterogeneous sample of human subjects, various noise stimuli, and different physical environments of exposure. Significant differences in annoyance ratings among the six noise stimuli, all equated for peak sound pressure level, were found.

Published
1975

40. Effects of noise upon human information processing

Author

Cohen, H. H, Conrad, D. W, Obrien, J. F, and Pearson, R. G

Subjects
Biotechnology
Abstract

Studies of noise effects upon human information processing are described which investigated whether or not effects of noise upon performance are dependent upon specific characteristics of noise stimulation and their interaction with task conditions. The difficulty of predicting noise effects was emphasized. Arousal theory was considered to have explanatory value in interpreting the findings of all the studies. Performance under noise was found to involve a psychophysiological cost, measured by vasoconstriction response, with the degree of response cost being related to scores on a noise annoyance sensitivity scale. Noise sensitive subjects showed a greater autonomic response under noise stimulation.

Published
1974

42. Development of a noise annoyance sensitivity scale

Author

Bregman, H. L and Pearson, R. G

Subjects
Biosciences
Abstract

Examining the problem of noise pollution from the psychological rather than the engineering view, a test of human sensitivity to noise was developed against the criterion of noise annoyance. Test development evolved from a previous study in which biographical, attitudinal, and personality data was collected on a sample of 166 subjects drawn from the adult community of Raleigh. Analysis revealed that only a small subset of the data collected was predictive of noise annoyance. Item analysis yielded 74 predictive items that composed the preliminary noise sensitivity test. This was administered to a sample of 80 adults who later rate the annoyance value of six sounds (equated in terms of peak sound pressure level) presented in a simulated home, living-room environment. A predictive model involving 20 test items was developed using multiple regression techniques, and an item weighting scheme was evaluated.

Published
1972

50. Dynamics of habitats and macroinvertebrate assemblages in rivers of the Australian dry tropics.

Author

BLANCHETTE, M. L. and PEARSON, R. G.

Subjects
*HABITATS, *INVERTEBRATES, *HYDROLOGICAL research, *ARID regions, *ECOLOGICAL resilience
Abstract

1. The dry tropics are characterised by episodic summer rainfall such that the majority of annual river flow occurs in a short period of time. This dryland hydrological cycle leads to variably connected channels and waterholes along the length of a river bed. 2. We investigated the seasonal changes in biophysical characteristics and macroinvertebrate assemblage composition in dry-tropics rivers at 15 sites on four rivers, each sampled five times (representing one annual hydrological cycle), in the Burdekin catchment, north Queensland, Australia. 3. Assemblages and their temporal trajectories differed among seasons, sites and habitats, even within the same habitat and/or river. Wet season flooding did not appear to 'reset' assemblages, with post-wet season assemblages differing between years. 4. We found no consistent pattern in taxonomic richness over time, and sites within rivers showed no consistent convergence or divergence (i.e. turnover) in macroinvertebrate assemblage composition. However, biophysical variables associated with the rigours of the late dry season had significant effects on macroinvertebrate assemblages, highlighting the variable and often harsh conditions of dry-tropics rivers. Underlying these patterns were different resistance and resilience traits of invertebrates (such as colonisation and establishment abilities), as well as the local-scale effects of biophysical variables. 5. The dynamic nature of dryland rivers presents major challenges to monitoring programmes, and our results suggest a more complex scenario for monitoring and management than previously described. [ABSTRACT FROM AUTHOR]

Published
2013
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