Abstract

Phenological investigation can provide valuable insights into the ecological effects of climate change. Appropriate modelling of the time distribution of phenological events is key to determining the nature of any changes, as well as the driving mechanisms behind those changes. Here, we present the nlstimedist r package, a distribution function and modelling framework that describes the temporal dynamics of unimodal phenological events. The distribution function is derived from first principles and generates three biologically interpretable parameters. Using seed germination at different temperatures as an example, we show how the influence of environmental factors on a phenological process can be determined from the quantitative model parameters. The value of this model is its ability to represent various unimodal temporal processes statistically. The three intuitively meaningful parameters of the model can make useful comparisons between different time periods, geographical locations or species' populations, in turn allowing exploration of possible causes.

DOI

10.1111/2041-210x.13293

Publication Date

2019-09-03

Publication Title

Methods in Ecology and Evolution

Volume

10

Issue

11

ISSN

2041-210X

Embargo Period

2020-09-02

Organisational Unit

School of Biological and Marine Sciences

First Page

1934

Last Page

1940

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