Sara L. Hermann
Michigan State University
Publications 11
#1Sara L. Hermann (PSU: Pennsylvania State University)H-Index: 6
#2Carissa Blackledge (MSU: Michigan State University)
Last.Douglas A. Landis (MSU: Michigan State University)H-Index: 49
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Conserving threatened organisms requires knowledge of the factors impacting their populations. The Eastern monarch butterfly (Danaus plexippus L.) has declined by as much as 80% in the past two decades and conservation biologists are actively seeking to understand and reverse this decline. While it is well known that most monarchs die as eggs and young larvae, few studies have focused on identifying what arthropod taxa contribute to these losses. The aim of our study was to identify previously u...
#1Sara L. Hermann (MSU: Michigan State University)H-Index: 6
#2Jennifer S. Thaler (Cornell University)H-Index: 35
Predator–prey interactions primarily focus on prey life-stages that are consumed. However, animals in less vulnerable life-stages might also be influenced by the presence of a predator, making our understanding of predation-related impacts across all life-stages of prey essential. It has been previously demonstrated that Podisus maculiventris is a voracious predator of eggs and larvae of Leptinotarsa decemlineata, and that larvae will alter their behavior to avoid predation. However, the adult b...
#1Amanda L. Buchanan (MSU: Michigan State University)H-Index: 2
#2Sara L. Hermann (MSU: Michigan State University)H-Index: 6
Last.Zsofia Szendrei (MSU: Michigan State University)H-Index: 13
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#1Sara L. Hermann (MSU: Michigan State University)H-Index: 6
#2Douglas A. Landis (MSU: Michigan State University)H-Index: 49
Non-consumptive effects (NCEs) of predators on prey is an important topic in insect ecology with potential applications for pest management. NCEs are changes in prey behavior and physiology that aid in predation avoidance. While NCEs can have positive outcomes for prey survival there may also be negative consequences including increased stress and reduced growth. These effects can cascade through trophic systems influencing ecosystem function. Most NCEs have been studied at small spatial and tem...
#1Sara L. Hermann (MSU: Michigan State University)H-Index: 6
#2Saisi Xue (MSU: Michigan State University)
Last.Christie A. Bahlai (MSU: Michigan State University)H-Index: 2
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The timing of events in the life history of temperate insects is most typically primarily cued by one of two drivers: photoperiod or temperature accumulation over the growing season. However, an insect's phenology can also be moderated by other drivers like rainfall or the phenology of its host plants. When multiple drivers of phenology interact, there is greater potential for phenological asynchronies to arise between an organism and those with which it interacts. We examined the phenological p...
#1Danielle M Kirkpatrick (MSU: Michigan State University)H-Index: 3
#2Peter McGhee (MSU: Michigan State University)H-Index: 9
Last.James R. MillerH-Index: 30
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Methods for trapping spotted wing drosophila, Drosophila suzukii (Matsmura) (Diptera: Drosophilidae), have not yet been optimized for detecting this devastating pest of soft-skinned fruits. Here, we report outcomes of choice and no-choice laboratory bioassays quantifying the rates of spotted wing drosophila alightment on 5-cm-diameter sticky disks of various colors, but no fruit odors. Red, purple, and black disks captured the most spotted wing drosophila when presented against a white backgroun...
#1Adam J. DobsonH-Index: 13
#2John M. ChastonH-Index: 15
Last.Brian P. LazzaroH-Index: 31
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The gut microbiota affects animal nutrition, but it is unclear whether this effect depends on host genetic makeup. This study shows that host genotype modifies the gut microbiota’s impact on host nutrition, and identifies genetic determinants of this variation in the fruit fly.
#1Sara L. Hermann (Cornell University)H-Index: 6
#2Jennifer S. Thaler (Cornell University)H-Index: 35
Predators can affect prey in two ways—by reducing their density (consumptive effects) or by changing their behavior, physiology or other phenotypic traits (non-consumptive effects). Understanding the cues and sensory modalities prey use to detect predators is critical for predicting the strength of non-consumptive effects and the outcome of predator–prey encounters. While predator-associated cues have been well studied in aquatic systems, less is known about how terrestrial prey, particularly in...