نتایج جستجو برای: 2002 evaluating resource selection functions ecological modelling 157

تعداد نتایج: 1463443  

Journal: :Electronic Green Journal 1998

2014
Henrik Thurfjell Simone Ciuti Mark S Boyce

Recent progress in positioning technology facilitates the collection of massive amounts of sequential spatial data on animals. This has led to new opportunities and challenges when investigating animal movement behaviour and habitat selection. Tools like Step Selection Functions (SSFs) are relatively new powerful models for studying resource selection by animals moving through the landscape. SS...

Journal: :Ecology 2017
Trevor J Hefley Kristin M Broms Brian M Brost Frances E Buderman Shannon L Kay Henry R Scharf John R Tipton Perry J Williams Mevin B Hooten

Analyzing ecological data often requires modeling the autocorrelation created by spatial and temporal processes. Many seemingly disparate statistical methods used to account for autocorrelation can be expressed as regression models that include basis functions. Basis functions also enable ecologists to modify a wide range of existing ecological models in order to account for autocorrelation, wh...

Journal: :The American naturalist 2010
Matthew E Arnegard Peter B McIntyre Luke J Harmon Miriam L Zelditch William G R Crampton Justin K Davis John P Sullivan Sébastien Lavoué Carl D Hopkins

Natural selection arising from resource competition and environmental heterogeneity can drive adaptive radiation. Ecological opportunity facilitates this process, resulting in rapid divergence of ecological traits in many celebrated radiations. In other cases, sexual selection is thought to fuel divergence in mating signals ahead of ecological divergence. Comparing divergence rates between natu...

2004
Stefan A.H. Geritz Éva Kisdi Géza Meszéna

Speciation occurs when a population splits into ecologically differentiated and reproductively isolated lineages. In this chapter, we focus on the ecological side of nonallopatric speciation: Under what ecological conditions is speciation promoted by natural selection? What are the appropriate tools to identify speciation-prone ecological systems? For speciation to occur, a population must have...

2013
Jesús Aguirre-Gutiérrez Luísa G. Carvalheiro Chiara Polce E. Emiel van Loon Niels Raes Menno Reemer Jacobus C. Biesmeijer

Understanding species distributions and the factors limiting them is an important topic in ecology and conservation, including in nature reserve selection and predicting climate change impacts. While Species Distribution Models (SDM) are the main tool used for these purposes, choosing the best SDM algorithm is not straightforward as these are plentiful and can be applied in many different ways....

2015
Cristina Cabanillas David Knuplesch Manuel Resinas Manfred Reichert Jan Mendling Antonio Ruiz Cortés

The business process (BP) resource perspective deals with the management of human as well as non-human resources throughout the process lifecycle. Although it has received increasing attention recently, there exists no graphical notation for it up until now that is both expressive enough to cover well-known resource selection conditions and independent of any BP modelling language. In this pape...

2004
S. CRONE

Various heuristic approaches have been proposed to limit design complexity and computing time in artificial neural network modelling, parameterisation and selection for time series prediction. However, no single approach demonstrates robust superiority on arbitrary datasets, causing additional decision problems and a trial-and-error approach to network modelling. To reflect this, we propose an ...

2004
Sven F. Crone

Various heuristic approaches have been proposed to limit design complexity and computing time in artificial neural network modelling, parameterisation and selection for time series prediction. However, no single approach demonstrates robust superiority on arbitrary datasets, causing additional decision problems and a trial-and-error approach to network modelling. To reflect this, we propose an ...

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