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DN: Database Name
    Ecology Abstracts
TI: Title
    Multiple mating, paternity, and body size in a simultaneous
    hermaphrodite, Aplysia californica
AU: Author
    Angeloni, L; Bradbury, JW; Burton, RS
AF: Affiliation
    Section of Ecology, Behavior and Evolution, Division of Biology,
    University of California, San Diego, La Jolla, CA 92093-0116, USA
SO: Source
    Behavioral Ecology. Vol. 14, no. 4, pp. 554-560. 2003.
IS: ISSN
    1045-2249
DE: Descriptors
    Article Subject Terms: Body size; Hermaphrodites; Hermaphroditism;
    Marine molluscs; Mating; Paternity; Population structure; Reproductive
    behaviour; Resource management; Sperm competition; Tagging; Article
    Taxonomic Terms: Aplysia californica; Article Geographic Terms: INE,
    USA, California
AB: Abstract
    Sperm displacement and sperm competition prove difficult to measure,
    but are crucial elements in predicting sex allocation strategies of
    sperm-storing hermaphrodites. Body size is predicted to affect sex
    allocation so that within a population, large animals invest a greater
    proportion of resources in female function than do small animals.
    These mating strategies depend on sperm displacement abilities and
    lead to similar levels of paternity across body sizes despite
    differences in resource level. The present study investigated mating
    patterns, multiple paternity, and sperm competition in a field
    population of a simultaneously hermaphroditic sea slug, Aplysia
    californica (California sea hare). Animals mating in the female role
    were larger than the mean for the population, indirectly supporting
    theoretical predictions for increased investment in female function
    with body size. However, contrary to predictions, animals mating in
    the male role were not different in size from the population mean or
    the animals they inseminated. Individual tagging revealed that sea
    slugs are capable of moving across distances that allow for the
    sampling of many potential mates, and that they mate repeatedly in
    both sexual roles. Microsatellite paternity analysis demonstrated that
    multiple mating in the field leads to multiple paternity, and
    last-sperm donors achieve high levels of paternity. There was no
    effect of body size on paternity. Further paternity studies are needed
    to reveal the mechanisms of sperm precedence patterns in A.
    californica.
PB: Publisher
    Oxford University Press, [URL:http://www3.oup.co.uk/jnls/]
LA: Language
    English
SL: Summary Language
    English
PY: Publication Year
    2003
PT: Publication Type
    Journal Article
ID: Identifiers
    California seahare
ER: Environmental Regime
    Marine
TR: Input Center, ASFA
    CS0644282
CL: Classification
    D 04658 Molluscs; Y 25422 Invertebrates (excluding insects); Q1 01423
    BEHAVIOUR
UD: Update
    200311
SF: Subfile
    ASFA 1: Biological Sciences & Living Resources; Animal Behavior
    Abstracts; Ecology Abstracts
AN: Accession Number
    5713322
JP: Journal Pages
    554-560
JV: Journal Volume
    14
JI: Journal Issue
    4