Studies on wild bees visiting alfalfa flowers in the Tokachi district
その他(別言語等)
のタイトル
十勝地方におけるアルファルファ訪花性ハナバチ類 に関する研究
著者(英) Usui Masayuki, Nishijima Yutaka journal or
publication title
Research bulletin of Obihiro Zootechnical University. Series I
volume 11
number 1
page range 123‑132
year 1978‑10‑31
URL http://id.nii.ac.jp/1588/00002266/
•
R e s . B l l l l . O b i h i r o U n i v . , 11 ( 1 978): 123‑132.
S t u d i e s o n w i l d b e e s v i s i t i n g a l f a l f a f l o w e r s i n t h e T o k a c h i d i s t r i c t
各Masayuki USUI and Yutaka .NISH l ] l MA ( L a b o r a t o r y 0 1 E n t o
附o l o g y , O b i h i r o U n i v e r s i t y .
O b i h i r o , H o k k a i d o , J a p a n ) R e c e i v e d May 3 0 , 1 9 7 8
十勝地方におげるアノレ 7 7 レ ノ 7 7 訪花性ノ、ナパチ
1類 に 関 す る 研 究
碓 井 正 行 料 ・ 西 島 浩柿
Introduction
1 2 3
The c u 1 t i v a t e d v a r i e t i e s and s t r a i n s o f a l f a l f a a r e u s u a l l y s e l f ‑ s t e r i l e and l e s s c a p a b l e o f a u t o m a t i c t r i p p i n g , and 50 t h e i r s e e d y i e l d d e p e n d s on t h e a c t i v i t y o f p o l l i n a t i n g ' b e e s . The r e l a t i v e i m p o r t a n c e o f honey and w i 1 d b e e s d i 旺 e r s g r e a t l y among d i f f e r e n t l o c a l i t i e s . I n g e n e r a l , t h e r e a r e a g r e a t number o f honey b e e s on a l f a l f a畳 owers predomInan t 1 y , and most o f t h e v i s i t i n g honey b e e s a r e n e c t a r ‑ g a t h e r e r s which do n o t t r i p t h e f l o w e r s . i n t h e c o o l e r and humid a r e a s (BOHART , 1 9 5 7 ; FREE , 1 9 7 0 ; MCGREGOR , 1 9 7 6 ) . In c o n t r a s t most s p e c i e s o f w i l d b e e s p o l l i n a t e a l f a l f a much more e 伍 c i e n t l y t h a n n e c t a r ‑ g a t h e r i n g h o r i e y b e e s and somewhat more e f f i c i e n t l y 出 血 p o l l e 時 a t h e r i n ghoney b e e s (BOHART , 1 9 5 8 )
Many s t u d i e s on t h e r e l a t i o n s h i p s between v a r i o u s f l o w e r s and w i l d b e e s have been done i n HoH 坦 i d o . These a r e m a i n l y d i v i d e d i n t o s u b j e c t s , namely ( 1 ) s u r v e y s u n d e r t a k e n f o r t h e p u r p o s e o f comparing w i t h l o c a l b e e f a u n a (SAKAGAMI and MATSUMURA , 1 9 6 . 7 " ; MATSUMURA and MUNAKATA , 1 9 6 9 ; SAKAGAMI and F 四日lD A , 1 9 7 2 ; 1 9 7 3 ; SAKAGAMI e t a l . , 1 9 7 4 ; USUI e t a l . , 1 9 7 6 ) , and ( 2 ) s t u d i e s on t h e p o l l i n a t i o n o f r e d c ¥ o v e r (YAM 血 I A and EBARA , 1 9 5 2 ; MURAKAMI e t a l . , 1 9 5 7 ; MURAKAMI , 1 9 6 4 ) . As a b e e p o l l i n a t o r o f a l f a l f a , MAIITA e t a l . ( 1 9 7 3 ) i n t r o d u c e d t h e l e a f . c u t t i n g b e e , Megachile r o t u n d a t a , i n t o Ho 地 a i d o from t h e U. S . A . . However , no s t u d y h a s been u n d e r t a k e n on t h e w i l d b e e s v i s i t i n g a l f a l f a i n H o k k a i d o . The p u r p o s e o f t h e p r e s e n t s t u d y i s t h e r e f o r e t o c I a r i f y t h e bee f a u n a and f i n d some e 旺 " e c t i v epo l 1 i n a t o r s on a l f a l f a .
The p r e s e n t p a p e r d e s c r i b e s some b a s i c i n f o r m a t i o n on b e e f a u n a s u r v e y e d a t an a l f a l f a p l o t d u r i n g t h e f l o w e r i n g s e a s o n s from 1 9 7 5 t o 1 9 7 7 i n O b i h i r o s i t u a t e d i n E a s t e r n Hokkaido
持