7 Works

Data from: Interacting effects of unobserved heterogeneity and individual stochasticity in the life-history of the Southern fulmar

Stéphanie Jenouvrier, Lise M. Aubry, Christophe Barbraud, Henri Weimerskirch & Hal Caswell
1.Individuals are heterogeneous in many ways. Some of these differences are incorporated as individual states (e.g., age, size, breeding status) in population models. However, substantial amounts of heterogeneity may remain unaccounted for, due to unmeasurable genetic, maternal, or environmental factors. 2.Such unobserved heterogeneity (UH) affects the behavior of heterogeneous cohorts via intra-cohort selection and contributes to inter-individual variance in demographic outcomes such as longevity and lifetime reproduction. Variance is also produced by individual stochasticity, due...

Data from: Early life exposure to low levels of AHR agonist PCB126 (3,3’,4,4’,5-pentachlorobiphenyl) reprograms gene expression in adult brain

Neelakanteswar Aluru, Sibel I. Karchner & Lilah Glazer
Early life exposure to environmental chemicals can have long-term consequences that are not always apparent until later in life. We recently demonstrated that developmental exposure of zebrafish to low, non-embryotoxic levels of 3,3’,4,4’,5-pentachlorobiphenyl (PCB126) did not affect larval behavior, but caused changes in adult behavior. The objective of this study was to investigate the underlying molecular basis for adult behavioral phenotypes resulting from early life exposure to PCB126. We exposed zebrafish embryos to PCB126 during...

Data from: Late spring nitrate distributions beneath the ice-covered northeastern Chukchi Shelf

Kevin R. Arrigo, Matthew M. Mills, Gert L. Van Dijken, Kate E. Lowry, Robert S. Pickart & Reiner Schlitzer
Measurements of late springtime nutrient concentrations in Arctic waters are relatively rare due to the extensive sea ice cover that makes sampling difficult. During the SUBICE cruise in May-June 2014, an extensive survey of hydrography and pre-bloom concentrations of inorganic macronutrients, oxygen, particulate organic carbon and nitrogen, and chlorophyll a was conducted in the northeastern Chukchi Sea. Cold (< -1.5°C) winter water was prevalent throughout the study area, and the water column was weakly stratified....

Data from: Density dependence in demography and dispersal generates fluctuating invasion speeds

Lauren L. Sullivan, Bingtuan Li, Tom E. X. Miller, Michael G. Neubert & Allison K. Shaw
Density dependence plays an important role in population regulation and is known to generate temporal fluctuations in population density. However, the ways in which density dependence affects spatial population processes, such as species invasions, are less understood. Although classical ecological theory suggests that invasions should advance at a constant speed, empirical work is illuminating the highly variable nature of biological invasions, which often exhibit nonconstant spreading speeds, even in simple, controlled settings. Here, we explore...

Data from: From the track to the ocean: using flow control to improve marine bio-logging tags for cetaceans

Giovani Fiore, Erik Anderson, C. Spencer Garborg, Mark Murray, Mark Johnson, Michael J. Moore, Laurens Howle & K. Alex Shorter
Bio-logging tags are an important tool for the study of cetaceans, but superficial tags inevitably increase hydrodynamic loading. Substantial forces can be generated by tags on fast-swimming animals, potentially affecting behavior and energetics or promoting early tag removal. Streamlined forms have been used to reduce loading, but these designs can accelerate flow over the top of the tag. This non-axisymmetric flow results in large lift forces (normal to the animal) that become the dominant force...

Data from: Differential persistence favors habitat preferences that determine the distribution of a reef fish

John E. Majoris, Cassidy C. D'Aloia, Robin K. Francis & Peter M. Buston
A central focus of population ecology is understanding what factors explain the distribution and abundance of organisms within their range. This is a key issue in marine systems, where many organisms produce dispersive larvae that develop offshore before returning to settle on benthic habitat. We investigated the distribution of the neon goby, Elacatinus lori, on sponge habitat and evaluated whether variation in the persistence of recently settled individuals (i.e., settlers) among different sponge types can...

Data from: Rethinking ‘normal’: the role of stochasticity in the phenology of a synchronously breeding seabird

Casey Youngflesh, Stephanie Jenouvrier, Jefferson T. Hinke, Lauren DuBois, Judy St. Leger, Wayne Z. Trivelpiece, Susan G. Trivelpiece & Heather J. Lynch
1. Phenological changes have been observed in a variety of systems over the past century. There is concern that, as a consequence, ecological interactions are becoming increasingly mismatched in time, with negative consequences for ecological function. 2. Significant spatial heterogeneity (inter-site) and temporal variability (inter-annual) can make it difficult to separate intrinsic, extrinsic, and stochastic drivers of phenological variability. The goal of this study was to understand the timing and variability of breeding phenology of...

Registration Year

  • 2017
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Resource Types

  • Dataset
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Affiliations

  • Woods Hole Oceanographic Institution
    7
  • SeaWorld Entertainment
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  • Rice University
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  • Stanford University
    1
  • University of Michigan-Ann Arbor
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  • University of California System
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  • Duke University
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  • United States Naval Academy
    1
  • Grove City College
    1
  • University of Minnesota
    1