rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Activity Budget, Field Metabolic Rate, and Foraging Ecology of Female Sea Otters (Enhydra lutris kenyoni) with Dependent Pups in Alaska
  name:
    name part: Wolt, Ryan Christopher
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Davis, Randall William
    role:
      role term: thesis advisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2015
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Sea otter (Enhydra lutris kenyoni) foraging behavior and prey preference (2001-2004) and the behavior and activity budgets of females with dependent pups (2005-2010) were studied during the summer (June-August) in Simpson Bay, Prince William Sound, Alaska. Unlike most previous studies of sea otters which were conducted in coastal areas with a rocky benthos and kelp canopy, the benthic habitat in this study was primarily soft sediment (mud or mixed mud and gravel) with no canopy-forming kelps. Foraging behavior and prey preference. A total of 1,816 foraging dives from 211 bouts were recorded. 87% of foraging dives were successful, and 44% of the prey was identified: 75% clams, 9% Pacific blue mussels, 6% crabs, 2% scallops and a variety of other invertebrates. Significantly more prey items/area were brought up from mixed mud/gravel than mud (p-value <0.0001). Sea otters in Simpson Bay have relied heavily on bivalves for the past 20 years, and the summer population has been constant for at least the past twelve years. It appears that bivalves are the predominant and stable component of the diet, and their productivity is sufficient to sustain a stable population of sea otters with a peak summer density of 4.3 adult otters km⁻² for the past twelve years and probably longer. Behavior and activity budgets of females with dependent pups. Females with dependent pups spent the greatest percentage of the day resting (42%), about equal percentages foraging (18%), grooming (15%) and swimming (15%), and the remainder swimming slowly (8%) and interacting (2%). The estimated FMR was 12.69 MJ day⁻¹. Sea otters reoccupied the study area in the early 1980s, and the population has been stable for over a decade. However, the time spent foraging is more similar to areas that have been recently occupied. The relatively small amount of time spent foraging may indicate that geographic differences (structure of the near-shore community: substrate, water depth, kelp canopy, prey assemblage,…
  note: by Ryan Christopher Wolt.
  note: "Major Subject: Wildlife and Fisheries Sciences"
  note: Includes vita.
  note: Doctor of Philosophy Texas A & M University 2014 http://hdl.handle.net/1969.1/152639
  note: Includes bibliographical references.
  note: Text (Dissertation)
  subject:
    topic: Major Wildlife and Fisheries Sciences
  subject:
    topic: Enhydra lutris
  subject:
    topic: Foraging behavior
  subject:
    topic: Time budget
  subject:
    topic: FMR
  subject:
    topic: Sea otter
  identifier: http://hdl.handle.net/1969.1/152639
  record info:
    record content source: TXA
    record creation date: 150212
    record change date: 20151206125851.0
    record identifier: in00003505096
    language of cataloging:
      language term: eng