scholarly journals DIVERSITY, RELATIVE ABUNDANCE AND FORAGING BEHAVIOUR OF INSECT POLLINATORS ON MURRAYA KOENIGII (L. ) (RUTACEAE)

Author(s):  
M M Dhore M M Dhore ◽  
Author(s):  
M. M. Dhore

The present studies on diversity and foraging behaviour of insect pollinators on Murraya koenigii (L. )was carried out during March - April 2019 at Akot town situated in Akola district of Maharashtra. Ten insect species visited Murraya koenigii flowers viz. Five hymenopterans and five lepidopterons. This study revealed that hymenopterans were found to be the most dominant (97. 5%) flower visitors, followed by lepidopteron insects (2. 5%). Among these Apis florea, Apis cerana indica, and Apis dorsata were found to be the most frequent pollinators. The result on foraging behaviour of bees Apis florea started visiting Murrya koenigii flowers in early morning at 06. 00 hrs, Apis cerana indica at 6. 30 hrs and ceased their activity later in the evening. Apis mellifera and Apis dorsata , they started visiting the flowers from 7. 00hrs. Maximum foraging was by Apis florea (12 flowers /minute)followed by Apis cerana indica (10 flowers/minute )and Apis dorsata (9-10 flowers /minute). Time spent per flower was the maximum with lepidopteron (25 sec. /flower) followed by Moth (15 sec. /flower)


2018 ◽  
Vol 05 (01) ◽  
pp. 38-41
Author(s):  
S Bhatnagar ◽  
LS Rathore ◽  
G Vishno ◽  
AU Khan ◽  
B Kumar

2013 ◽  
Vol 13 (13) ◽  
pp. 1-18 ◽  
Author(s):  
Laura A. Mesa ◽  
Bradley G. Howlett ◽  
Jan E. Grant ◽  
Raphael K. Didham

2011 ◽  
Vol 59 (6) ◽  
pp. 582 ◽  
Author(s):  
C. Q. Nghiem ◽  
C. E. Harwood ◽  
J. L. Harbard ◽  
A. R. Griffin ◽  
T. H. Ha ◽  
...  

Floral phenology and morphology of colchicine-induced auto-tetraploid trees of Acacia mangium Willd. (AM-4x) growing in Vietnam were compared with adjacent diploid A. mangium (AM-2x) and A. auriculiformis A.Cunn. ex Benth (AA-2x). Flowering lasted for several months with a slightly later peak flowering period for A. auriculiformis (December–January), than for A. mangium (November–December). Flower spikes of AM-4x were shorter and had fewer flowers per spike than those of AM-2x, but were longer and had more flowers than AA-2x. Percentages of male to hermaphrodite flowers were less than 23% for all three species/ploidy combinations. Flowers of AM-4x had slightly shorter styles than did AM-2x, but AM-4x stigma and polyad diameters were greater. For all polyad-stigma combinations among species/ploidy levels, at least one polyad could be accommodated. AM-4x had fewer (13) ovules per ovary, compared with AM-2x and AA-2x (14–16). AM-4x set fewer (less than 3) seeds per pod than did AM-2x and AA-2x (7–8 and 5–6, respectively). Foraging behaviour of the main insect pollinators (honeybees) and examination of polyads collected from them suggested interspecific and interploidy pollination would occur. There appeared to be no phenophase or flower structure barriers to interploidy pollination.


2001 ◽  
Vol 2001 ◽  
pp. OC9-OC9
Author(s):  
U. Alm ◽  
B. Birgersson ◽  
O. Leimar

The fallow deer is a generalist herbivore that eats different plants containing secondary compounds in various amounts. From observations of foraging behaviour it is known that large herbivores tend to eat from a variety of locations and, over the short term, typically ingest small quantities of a variety of foods and sample novel foods rather than making an immediate decision to either eat large amounts or to reject the food (Freeland and Janzen 1974). The diet choice of large herbivores is influenced by the presence of nutrients and toxins (Provenza 1995), but another factor that could influence the diet choice is the relative abundance of different plants and plant types. In order to study these effects we have performed experiments on the effect of the relative abundance of different food types on diet choice in fallow deer.


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