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Full-Text Articles in Biology
Temperature Has A Unimodal Effect On The Functional Response Of Wolf Spiders, John Delong, Stella F. Uiterwaal, Alondra Magallanes
Temperature Has A Unimodal Effect On The Functional Response Of Wolf Spiders, John Delong, Stella F. Uiterwaal, Alondra Magallanes
School of Biological Sciences: Faculty Publications
The response of biotic interactions to changes in temperature will play a large role in determining the impact of climate change on ecological communities. In particular, how warming alters predator-prey interactions will influence population stability, food web connectivity, and the movement of energy across trophic levels. The functional response relates predator foraging rates to prey availability, and it is often predicted to increase monotonically with temperature, at least within the limits of predator function. However, some studies suggest that functional responses peak and then decline, and such a difference has critical implications for the effect of warming on ecological communities. …
Predator Functional Responses And The Biocontrol Of Aphids And Mites, John Delong, Stella Uiterwaal
Predator Functional Responses And The Biocontrol Of Aphids And Mites, John Delong, Stella Uiterwaal
School of Biological Sciences: Faculty Publications
Biocontrol with predators is a key tool for controlling agricultural pests and preserving the productive efficiency of crops. Determining which predators to use for biocontrol often involves measuring their functional response—the relationship between foraging rate and prey abundance, yet comparisons of functional responses across predators are complicated by differences in experimental procedures. Here we use a compilation of functional responses standardized for time and space units to illustrate key sources of variation in functional responses for predators being tested for control of aphids and mites. Our results show that arena size (as a proxy for habitat structure) is a crucial …
Forage Database: A Compilation Of Functional Responses For Consumers And Parasitoids, Stella Uiterwaal, Ian T. Lagerstrom, Shelby R. Lyon, John Delong
Forage Database: A Compilation Of Functional Responses For Consumers And Parasitoids, Stella Uiterwaal, Ian T. Lagerstrom, Shelby R. Lyon, John Delong
School of Biological Sciences: Faculty Publications
Functional responses, the relationships between consumer foraging rate and resource (prey) density, provide key insights into consumer–resource interactions while also being a major driver of population dynamics and food web structure. We present a global database of 2598 standardized functional responses and parameters extracted from the published literature. We refit the functional responses with a Type II model using standardized methods and report the fitted parameters along with data on experimental conditions, consumer and resource taxonomy and type, as well as the habitat and dimensionality of the foraging interaction. The consumer and resource species covered here are taxonomically diverse, from …