Oviposition Strategies of Aedes Albopictus (Skuse) (Diptera

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Material Information

Title:
Oviposition Strategies of Aedes Albopictus (Skuse) (Diptera Culicidae): Analyzing Behavioral Patterns for Surveillance Techniques and Control Tactics
Physical Description:
1 online resource (159 p.)
Language:
english
Creator:
Davis, Timothy J
Publisher:
University of Florida
Place of Publication:
Gainesville, Fla.
Publication Date:

Thesis/Dissertation Information

Degree:
Doctorate ( Ph.D.)
Degree Grantor:
University of Florida
Degree Disciplines:
Entomology and Nematology
Committee Chair:
KAUFMAN,PHILLIP EDWARD
Committee Co-Chair:
KLINE,DANIEL L.
Committee Members:
HOGSETTE,JEROME A,JR
TATEM,ANDREW

Subjects

Subjects / Keywords:
albopictus -- buddleja -- oviposition -- skip
Entomology and Nematology -- Dissertations, Academic -- UF
Genre:
Entomology and Nematology thesis, Ph.D.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract:
Aedes albopictus (Skuse) is an invasive mosquito species that vectors human pathogens.  Being a day-biting mosquito that is not attracted to standard surveillance approaches, surveillance and control measures for Ae. albopictus often are based on its oviposition behavior and this behavior warrants further examination.  Aedes albopictus is a container-inhabiting mosquito that ovipositsin habitats that are resource limited and encounters density dependent conditions that reduce fitness.  In order to mitigate larval competition, Ae.albopictus females may choose to distribute eggs from a single gonotrophic cycle over multiple containers through skip oviposition.  A series of laboratory and field studies were conducted to determine if Ae. albopictus performs skip oviposition.  In field studies, 37 wild Ae. albopictus that visited an attractive self-marking ovisite were subsequently captured at a sticky ovitrap within a four day period.  Since the average Ae. albopictus gonotrophic period is 4.5-6 days, the wild-caught Ae.albopictus must have visited two oviposition sites within a single gonotrophic period, thereby providing field-based indirect evidence of skip oviposition. Density dependent effects on oviposition outcomes were examined.  In a four-choice arena, individual Ae. albopictus oviposited insignificantly fewer containers (1.4-1.5 containers) when ovisites with high quality larval habitat (uncrowded conditions) compared to the 2.5-2.9 containers utilized when presented low quality larval habitats (crowded conditions).  Aedes albopictus clutch size was evaluated in field populations and compared to the clutch size of laboratory-reared mosquitoes reared at different levels of larval crowding.  Field sites significantly varied in mean clutch size (23 to 46), which was comparable to the mean clutch size of females reared at the larval densities of 9 larvae/3 mL of water (20 eggs) and 3 larvae/3 mL of water (53 eggs). The oviposition preference of Ae. albopictus for different sized containers and the influence of flowering butterfly bush (Buddleja davidii Franchett cultivar ‘Guinevere’) was examined.  Large containers had significantly more eggs than medium and small containers.  Containers adjacent to flowering butterfly bushes had significantly more eggs than those without a flowering butterfly bush.  This was the first study to demonstrate an oviposition preference for ovisites associated with a flowering landscape plant.
General Note:
In the series University of Florida Digital Collections.
General Note:
Includes vita.
Bibliography:
Includes bibliographical references.
Source of Description:
Description based on online resource; title from PDF title page.
Source of Description:
This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility:
by Timothy J Davis.
Thesis:
Thesis (Ph.D.)--University of Florida, 2013.
Local:
Adviser: KAUFMAN,PHILLIP EDWARD.
Local:
Co-adviser: KLINE,DANIEL L.
Electronic Access:
RESTRICTED TO UF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE UNTIL 2014-12-31

Record Information

Source Institution:
UFRGP
Rights Management:
Applicable rights reserved.
Classification:
lcc - LD1780 2013
System ID:
UFE0046119:00001