Viral prevalence among social bees in different landscapes
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- Tez No: 726732
- Danışmanlar: PROF. JUDY WU-SMART
- Tez Türü: Yüksek Lisans
- Konular: Zooloji, Zoology
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2018
- Dil: İngilizce
- Üniversite: Unıversıty Of Nebraska-Lıncoln
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
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Özet (Çeviri)
Advisor: Judy Wu-Smart Honey bees and wild bees provide important pollination services to numerous crops and native plants. In recent years, declines in bee populations have highlighted the importance of the ecological services they provide and the need for more research into the reasons for their decline. Currently, many conservation efforts to mitigate bee losses include increasing forage and habitat, however, there is growing concern over the role interspecific pathogen transmission plays in bee decline. Viruses commonly found in honey bees may be transmitted and pose a threat to other bee species when bees come together at foraging sites. To elucidate the impact of viruses in bee health decline, I examined the roles flowers, bee management, land type, and foraging activity play in viral prevalence. Bees, pollen (collected from foraging bees), in-hive pollen stores, flowers, and other insects on flowers were analyzed for the presence of four common honey bee viruses using RT-PCR sequencing techniques. To further examine the role bee management and life history traits, such as sociality, may play in the transmission and or persistence of viruses, we compared viral profiles from two species of managed social bees (Apis mellifera, Bombus impatiens) and two species of wild social bees (B. griseocollis, Halictus ligatus). Bees were also collected from different landscapes (urban, agricultural, roadsides and conservation parks) and from short, medium, or long blooming plants to determine how floral traits and land management practices may impact viral profiles among bees.
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