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A unified approach to the Richards-model family for use in growth analyses: why we need only two model forms.
This paper advances a unified approach to the modeling of sigmoid organismal growth. There are numerous studies on growth, and there have been several proposals and applications of candidate models.Expand
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The use of Gompertz models in growth analyses, and new Gompertz-model approach: An addition to the Unified-Richards family
The Gompertz model is well known and widely used in many aspects of biology. It has been frequently used to describe the growth of animals and plants, as well as the number or volume of bacteria andExpand
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Shapes and functions of bird-growth models: how to characterise chick postnatal growth.
We compare four candidate models (logistic, Gompertz, von Bertalanffy, and extreme value function) for modelling the growth of birds. We fitted the models to two empirical data sets of chick growthExpand
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Geographic changes in the Aegean Sea since the Last Glacial Maximum: Postulating biogeographic effects of sea-level rise on islands
Abstract In order to assess how the last sea level rise affected the Aegean archipelago, we quantified the magnitude and rate of geographic change for the Aegean islands during the lastExpand
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A proposed family of Unified models for sigmoidal growth
The four-parameter Unified Richards model has been applied to the growth of different animal taxa. Traditionally researchers of animal growth have favoured three-parameter models such as theExpand
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Modelling avian growth with the Unified-Richards: as exemplified by wader-chick growth
Postnatal growth in birds is traditionally modelled by fitting three-parameter models, namely the logistic, the Gompertz, or the von Bertalanffy models. The purpose of this paper is to address theExpand
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Growth and energetics of a small shorebird species in a cold environment: the little stint Calidris minuta on the Taimyr Peninsula, Siberia
The little stint Calidris minuta is one of the smallest shorebird species breeding in the Arctic (weighing 4.3 g on hatching). Their chicks are small and have a high surface area-to-volume ratio. WeExpand
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The energetic implications of precocial development for three shorebird species breeding in a warm environment
We investigated the effect of body size, parental behaviour and timing of breeding on the chick growth and energetics of three precocial shorebird (Charadrii) species in a warm sub-tropicalExpand
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Subjecting the theory of the small‐island effect to Ockham’s razor
Species–area curves from islands and other isolates often differ in shape from sample-area curves generated from mainlands or sections of isolates (or islands), especially at finer scales. We examineExpand
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Choosing the right sigmoid growth function using the unified‐models approach
Growth of the young is an important part of the life history in birds. However, modelling methods have paid little attention to the choice of regression model used to describe its pattern. The aim ofExpand
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