5 Works

Data from: Effect of an invasive plant and moonlight on rodent foraging behavior in a coastal dune ecosystem

Matthew D. Johnson & Yesenia L. De León
Understanding how invasive plants may alter predator avoidance behaviors is important for granivorous rodents because their foraging can trigger ripple effects in trophic webs. Previous research has shown that European beach grass Ammophila arenaria, an invasive species in coastal California, affects the predation of other seeds by the rodents Microtus californicus, Peromyscus maniculatus, and Reithrodontomys megalotis. This may be due to lower perceived predation risk by rodents foraging in close proximity to the cover provided...

Data from: Using occupancy modeling to compare environmental DNA to traditional field methods for regional-scale monitoring of an endangered aquatic species

Molly C. Schmelzle & Andrew P. Kinziger
Environmental DNA (eDNA) monitoring approaches promise to greatly improve detection of rare, endangered, and invasive species in comparison to traditional field approaches. Herein, eDNA approaches and traditional seining methods were applied at 29 research locations to compare method-specific estimates of detection and occupancy probabilities for endangered tidewater goby (Eucyclogobius newberryi). At each location multiple paired seine hauls and water samples for eDNA analysis were taken, ranging from two to 23 samples per site, depending upon...

Data from: The Rickettsia endosymbiont of Ixodes pacificus contains all the genes of de novo folate biosynthesis

Daniel J. Hunter, Jessica L. Torkelson, James Bodnar, Bobak Mortazavi, Timothy Laurent, Jeff Deason, Khanhkeo Thephavongsa & Jianmin Zhong
Ticks and other arthropods often are hosts to nutrient providing bacterial endosymbionts, which contribute to their host’s fitness by supplying nutrients such as vitamins and amino acids. It has been detected, in our lab, that Ixodes pacificus is host to Rickettsia species phylotype G021. This endosymbiont is predominantly present, and 100% maternally transmitted in I. pacificus. To study roles of phylotype G021 in I. pacificus, bioinformatic and molecular approaches were carried out. MUMmer genome alignments...

Data from: Temporal genetic analysis of the endangered tidewater goby: metapopulation dynamics or drift in isolation?

Andrew P. Kinziger, Michael Hellmair, William Tyler McCraney, David K. Jacobs & Greg Goldsmith
Extinction and colonization dynamics are critical to understanding the evolution and conservation of metapopulations. However, traditional field studies of extinction–colonization are potentially fraught with detection bias and have rarely been validated. Here, we provide a comparison of molecular and field-based approaches for assessment of the extinction–colonization dynamics of tidewater goby (Eucyclogobius newberryi) in northern California. Our analysis of temporal genetic variation across 14 northern California tidewater goby populations failed to recover genetic change expected with...

Data from: What can aquatic gastropods tell us about phenotypic plasticity? A review and meta-analysis

Paul E. Bourdeau, Roger K. Butlin, Christer Brönmark, Timothy C. Edgell, Jason T. Hoverman & Johan Hollander
There have been few attempts to synthesise the growing body of literature on phenotypic plasticity to reveal patterns and generalities about the extent and magnitude of plastic responses. Here, we conduct a review and meta-analysis of published literature on phenotypic plasticity in aquatic (marine and freshwater) gastropods, a common system for studying plasticity. We identified 96 studies, using pre-determined search terms, published between 1985 and November 2013. The literature was dominated by studies of predator-induced...

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  • Humboldt State University
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  • Lund University
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  • Purdue University
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  • University of California Los Angeles
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  • University of Sheffield
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