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FITTING MULTIVARIATE MODELS TO COMMUNITY DATA: A COMMENT ON DISTANCE‐BASED REDUNDANCY ANALYSIS
Nonparametric multivariate analysis of ecological data using permutation tests has two main challenges: (1) to partition the variability in the data according to a complex design or model, as isExpand
Multivariate dispersion as a measure of beta diversity.
TLDR
For kelp holdfast assemblages from New Zealand, variation in species composition was greater in smaller holdfasts, while variation in relative abundances was great in larger holdasts, regardless of the measure used. Expand
When are rare species not there
TLDR
A relationship between the number of sampling units taken from the habitat, the rarity of the species, and the probability it will be detected in the sample is described, which can be described by a simple application of probability theory. Expand
Compensatory dynamics are rare in natural ecological communities
TLDR
It is suggested that abiotic factors such as temperature and precipitation are more important than competitive interactions in driving year-to-year fluctuations in species abundance within communities. Expand
Randomized controlled crossover study of the effect of a highly beta-glucan-enriched barley on cardiovascular disease risk factors in mildly hypercholesterolemic men.
TLDR
The effect of beta-glucan-enriched barley on lipid profile was highly variable between subjects, and there was no evidence of a clinically significant improvement in CVD risk across this group of mildly hyperlipidemic men. Expand
The Temporal Variability of Animal Abundances: Measures, Methods and Patterns
From first principles, the temporal variability of a time series of abundances can be defined as the average deviation of values from a mean value on a proportional scale. In this paper we review:Expand
A Theoretical Investigation of Speciation by Reinforcement
TLDR
A closer examination of the reinforcement model of speciation using a computer simulation reveals that there are a number of implicit assumptions necessary for reinforcement to work, suggesting that speciation by reinforcement is not nearly as prevalent as much of the biological literature suggests. Expand
New Zealand Demersal Fish Assemblages
Demersal fish assemblages in the New Zealand Exclusive Economic Zone were identified using presence–absence data from 19 215 bottom trawl tows made over a 37-year period. The dataset spannedExpand
Developmental plasticity in larval development in the echinometrid sea urchin Evechinus chloroticus with varying food ration
TLDR
The results show that developmental plasticity in larval form is seen in a Southern Hemisphere representative of the Family Echinometridae, but the general pattern of longer arms with low food ration was only seen in the earliest part of development. Expand
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