Results 171 to 180 of about 4,521,299 (288)

The shifted-scaled Dirichlet Distribution in the Simplex

open access: yes, 2011
Perturbation and powering are two operations in the simplex that define a vector-space structure. Perturbation and powering in the simplex play the same role as the sum and product by scalars in real space. A standard Dirichlet random composition can be shifted by perturbation, and scaled powering by a real scalar. The obtained random composition has a
Monti, G.S.   +3 more
openaire   +3 more sources

Isotopic evidence for the consumption of Galliformes by the red fox (Vulpes vulpes) in rural southern England

open access: yesWildlife Biology, EarlyView.
Anthropogenic resource subsidies can drive mesopredator population growth, altering predator–prey dynamics. The red fox Vulpes vulpes is a generalist canid that can readily exploit such subsidies. In the UK, tens of millions of pheasants Phasianus colchicus and red‐legged partridges Alectoris rufa are released annually for sport shooting, potentially ...
Nathan F. Williams   +4 more
wiley   +1 more source

Large parameter uncertainty persists in soil food web models integrating stoichiometry, respiration and assimilation

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Soil food web models are essential for linking animal diversity to carbon and nutrient cycling. However, it is unclear how soil animals regulate excess carbon when nutrient availability limits their growth and how to best represent animal respiration in these models. To
Robert W. Buchkowski   +8 more
wiley   +1 more source

Weathering the storm: Most maternal and environmental drivers of individual reproductive success do not scale up to population recruitment in a large herbivore

open access: yesJournal of Animal Ecology, EarlyView.
Using 18 years of data on eastern grey kangaroos, we show that drivers of individual reproductive success often do not scale up to population recruitment. Birth asynchrony could buffer population recruitment against environmental variability, such that variables affecting individual reproduction have little impact at the population level.
Rachel Bergeron   +4 more
wiley   +1 more source

Measuring New Venture Legitimacy: A Multi‐dimensional Approach Using Computational Textual Analysis

open access: yesBritish Journal of Management, EarlyView.
Abstract Legitimacy is critical for the growth, survival and performance of ventures, yet efforts to measure legitimacy empirically typically focus on a single dimension of this multi‐dimensional construct. In this article, we develop a multi‐dimensional framework for measuring legitimacy using computational text analysis.
Ali Ghods   +3 more
wiley   +1 more source

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