Clinal nature of the frequencies of ovarioles and spermathecae in Cape worker honeybees, Apis mellifera capensis

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Phiancharoen M., Pirk C.W.W., Radloff S.E., Hepburn R.

ผู้เผยแพร่: Springer

ปีที่เผยแพร่ (ค.ศ.): 2010

วารสาร: Apidologie (0044-8435)

Volume number: 41

Issue number: 2

หน้าแรก: 129

หน้าสุดท้าย: 134

จำนวนหน้า: 6

นอก: 0044-8435

eISSN: 1297-9678

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77950538434&doi=10.1051%2fapido%2f2009054&partnerID=40&md5=8cad87e05185e07fbe6a770b48ae7736

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

It was determined that 300 Cape workers, Apis mellifera capensis (collected from each of 6 colonies at each of 5 localities about 200 km apart along an 800 km transect in the Western and Eastern Cape Provinces, South Africa) was the sample size required to statistically estimate the proportions of workers with spermathecae at each location at 95% confidence levels. Because of the extremely clinal nature of this honeybee population, we tested the hypotheses that (1) ovarian number and development of the spermatheca covary in Cape workers, and (2) covary clinally as well. A regression analysis revealed that the frequencies of bees with spermathecae significantly decreased from west to east, with Stellenbosch having the highest and Grahamstown the lowest frequencies. Spermatheca size also significantly decreased from west to east. A multiple regression analysis revealed that the number of ovarioles significantly decreased from west to east and also differed significantly between workers with and without a spermatheca. Moreover, the number of ovarioles was significantly correlated with the size of the spermatheca and workers without it had significantly fewer ovarioles. Both hypotheses are confirmed. The outcomes of these measurements will provide a more quantitative basis for estimates of effective social parasitism among these bees along a geographic continuum. ฉ INRA/DIB-AGIB/EDP Sciences, 2009.

คำสำคัญ

Ovariolen, Spermatheken