Note
Charles E. Schmidt College of Science
Member of
Contributors
Publisher
Florida Atlantic University
Date Issued
1979
Description
Two gynogenetically reproducing unisexuals, the diploid Poecilia
formosa and its associated triploid are sympatric to P. mexicana, a
bisexual species, in northeastern Mexico. All compete for sperm from
P. mexicana males. Field and laboratory experiments studied habitat.
preferences and associations as mechanisms of reducing competition. A
new tagging method was developed.
Laboratory results (Phase One) indicated habitat preferences of
each female type. Further studies (Phase Two) showed the fishes remained
together but each female type associated with its own kind. Shade and a
gravel substrate were important habitat parameters.
Specific habitat preferences may not be adaptive due to seasonal
water fluctuations but there are different ecological preferences by each
female type. Associations could account for Phase One laboratory results
and ecological differences. Combined data indicate associations are the
likely mechanism, but habitat preferences are possible. Seasonal factors
and artificial conditions may have caused diverse results.
formosa and its associated triploid are sympatric to P. mexicana, a
bisexual species, in northeastern Mexico. All compete for sperm from
P. mexicana males. Field and laboratory experiments studied habitat.
preferences and associations as mechanisms of reducing competition. A
new tagging method was developed.
Laboratory results (Phase One) indicated habitat preferences of
each female type. Further studies (Phase Two) showed the fishes remained
together but each female type associated with its own kind. Shade and a
gravel substrate were important habitat parameters.
Specific habitat preferences may not be adaptive due to seasonal
water fluctuations but there are different ecological preferences by each
female type. Associations could account for Phase One laboratory results
and ecological differences. Combined data indicate associations are the
likely mechanism, but habitat preferences are possible. Seasonal factors
and artificial conditions may have caused diverse results.
Language
Type
Form
Extent
88 p.
Subject (Topical)
Identifier
13960
Additional Information
Charles E. Schmidt College of Science
Thesis (M.S.)--Florida Atlantic University, 1979.
FAU Electronic Theses and Dissertations Collection
Date Backup
1979
Date Text
1979
Date Issued (EDTF)
1979
Extension
FAU
FAU
admin_unit="FAU01", ingest_id="ing1508", creator="staff:fcllz", creation_date="2007-07-19 01:53:27", modified_by="staff:fcllz", modification_date="2011-01-06 13:09:04"
IID
FADT13960
Issuance
monographic
Organizations
Attributed name: Florida Atlantic University
Attributed name: Charles E. Schmidt College of Science
Attributed name: Department of Biological Sciences
Person Preferred Name
KUCHARSKI, KRISTINE MARIE.
Graduate College
Physical Description
88 p.
application/pdf
Title Plain
HABITAT PREFERENCES AND ASSOCIATIONS OF A UNISEXUAL-BISEXUAL COMPLEX OF POECILIA (PISCES: POECILIIDAE) FROM NORTHEASTERN MEXICO
Use and Reproduction
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http://rightsstatements.org/vocab/InC/1.0/
Origin Information
1979
monographic
Boca Raton, Fla.
Florida Atlantic University
Physical Location
Florida Atlantic University Libraries
Place
Boca Raton, Fla.
Sub Location
Digital Library
Title
HABITAT PREFERENCES AND ASSOCIATIONS OF A UNISEXUAL-BISEXUAL COMPLEX OF POECILIA (PISCES: POECILIIDAE) FROM NORTHEASTERN MEXICO
Other Title Info
HABITAT PREFERENCES AND ASSOCIATIONS OF A UNISEXUAL-BISEXUAL COMPLEX OF POECILIA (PISCES: POECILIIDAE) FROM NORTHEASTERN MEXICO