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Full-Text Articles in Life Sciences
Fear Of Large Carnivores Is Tied To Ungulate Habitat Use: Evidence From A Bifactorial Experiment, Haley K. Epperly, Michael Clinchy, Liana Y. Zanette, Robert A. Mcceery
Fear Of Large Carnivores Is Tied To Ungulate Habitat Use: Evidence From A Bifactorial Experiment, Haley K. Epperly, Michael Clinchy, Liana Y. Zanette, Robert A. Mcceery
Biology Publications
The fear large carnivores inspire in large ungulates has been argued to have cascading effects down food webs. However, a direct link between ungulate habitat use and their fear of large carnivores has not been experimentally tested. To fill this critical gap, we conducted a bi-factorial experiment in an African savanna. We removed shrub cover and broadcast large carnivore vocalizations (leopard, hyena, dog) or non-threatening control vocalizations in both experimentally cleared and shrubby control sites. We recorded the proactive (frequency of visitation) and reactive (fleeing or vigilance) responses of multiple prey (impala, warthog, nyala and bushbuck). Critically, we found a …
High-Resolution Imaging As A Tool For Identifying Quantitative Trait Loci That Regulate Photomorphogenesis In Arabidopsis Thaliana, Stephen D. Deslauriers
High-Resolution Imaging As A Tool For Identifying Quantitative Trait Loci That Regulate Photomorphogenesis In Arabidopsis Thaliana, Stephen D. Deslauriers
Biology Publications
A primary component of seedling establishment is the photomorphogenic response as seedlings emerge from the soil. This process is characterized by a reduced growth rate in the hypocotyl, increased root growth, opening of the apical hook and expansion of the cotyledons as photosynthetic organs. While fundamental to plant success, the photomorphogenic response can be highly variable. Additionally, studies of Arabidopsis thaliana are made difficult by subtle differences in growth rate between individuals. High-resolution imaging and computational processing have emerged as useful tools for quantification of such phenotypes. This study sought to: (i) develop an imaging methodology which could capture changes …
Erratum: Publisher Correction: Fear Of Large Carnivores Is Tied To Ungulate Habitat Use: Evidence From A Bifactorial Experiment (Scientific Reports (2021) 11 1 (12979)), Haley K. Epperly, Michael Clinchy, Liana Y. Zanette, Robert A. Mccleery
Erratum: Publisher Correction: Fear Of Large Carnivores Is Tied To Ungulate Habitat Use: Evidence From A Bifactorial Experiment (Scientific Reports (2021) 11 1 (12979)), Haley K. Epperly, Michael Clinchy, Liana Y. Zanette, Robert A. Mccleery
Biology Publications
No abstract provided.
Fear Of Predators In Free-Living Wildlife Reduces Population Growth Over Generations, Marek C. Allen, Michael Clinchy, Liana Y. Zanette
Fear Of Predators In Free-Living Wildlife Reduces Population Growth Over Generations, Marek C. Allen, Michael Clinchy, Liana Y. Zanette
Biology Publications
Data set for article in Fear of predators in free ‐ living wildlife reduces population growth over generations
in
Proceedings of the National Academy of Sciences of the United States of America
Epigenetic Memories And The Evolution Of Infectious Diseases, Geoff Wild
Epigenetic Memories And The Evolution Of Infectious Diseases, Geoff Wild
Biology Publications
Genes with identical DNA sequence may show differential expression because of epigenetic marks. Where epigenetic marks respond to past conditions, they represent a form of “memory”. Despite their medical relevance, the impact of memories on the evolution of infectious diseases has rarely been considered. Here we explore the evolution of virulence in pathogens that carry memories of the sex of their previous host. We show that this form of memory provides information about the sex of present and future hosts when the sexes differ in their pathogen’s transmission pattern. Memories of past hosts enable the evolution of greater virulence in …
Understanding Metrics Of Stress In The Context Of Invasion History: The Case Of The Brown Treesnake (Boiga Irregularis), Natalie Claunch, Ignacio Moore, Heather L. Waye, Laura Schoenle, Samantha J. Oakey, Robert N. Reed, Christina Romagosa
Understanding Metrics Of Stress In The Context Of Invasion History: The Case Of The Brown Treesnake (Boiga Irregularis), Natalie Claunch, Ignacio Moore, Heather L. Waye, Laura Schoenle, Samantha J. Oakey, Robert N. Reed, Christina Romagosa
Biology Publications
Invasive species can exert rapid depletion of resources after introduction and, in turn, affect their own population density. Additionally, management actions can have direct and indirect effects on demography. Physiological variables can predict demographic change but are often restricted to snapshots-in-time and delayed confirmation of changes in population density reduces their utility. To evaluate the relationships between physiology and demography, we assessed metrics of individual and demographic stress (baseline and 1-h corticosterone (CORT), body condition and bacterial killing ability) in the invasive snake Boiga irregularis on Guam collected in intervals of 10–15 years. We also assessed potential discrepancies between different …