نتایج جستجو برای: bee forage

تعداد نتایج: 25706  

2016
M.A. Becher V. Grimm J. Knapp J. Horn G. Twiston-Davies J.L. Osborne

Social bees are central place foragers collecting floral resources from the surrounding landscape, but little is known about the probability of a scouting bee finding a particular flower patch. We therefore developed a software tool, BEESCOUT, to theoretically examine how bees might explore a landscape and distribute their scouting activities over time and space. An image file can be imported, ...

Journal: :Frontiers in sustainable food systems 2021

Managed and wild bee populations contribute over $15 billion in pollination services to US agriculture, yet both are declining or becoming increasingly vulnerable parasites disease. The loss of healthy diverse forage is a key driver declines, so incentivizing land managers adopt diversified bee-friendly management practices such as plantings reduced pesticide use can directly increase food secu...

2007
Matt Hersom Danny Driver Bert Faircloth Jerry Wasdin

A demonstration was conducted to examine the stored forage yield and stored forage quality of two different hay forage management systems. The forage management systems were a hay harvest only system or a complimentary hayround bale silage harvest system. The hay system harvested bermudagrass forage as hay during the summer when weather conditions allowed, the complimentary system harvested ber...

D. Dinkov , D. Pavlov , D. Stratev , G. Beev , I. Vashin ,

Background: Due to its nutrient content, a variety of spoilage microorganisms can grow in bee pollen, especially when handling practices are not appropriate. So, this survey was designed to assess the physicochemical and microbiological properties of bee pollen collected from Bulgaria. Methods: In June 2014, 13 fresh and 19 dried bee pollen samples were collected from Bulgaria. Water activity ...

Journal: :Clinical allergy 1976
C E Arbesman R E Reisman J I Wypych

The potency of various bee antigens including bee venom, several whole bee body extracts and fractions of bee venom was studied using the RAST inhibition method. As compared to whole bee body extract, bee venom was a much more potent inhibitor of both bee venom and whole body RAST, suggesting that venom has a greater capacity to bind specific bee IgE antibodies. Whole body extracts also varied ...

Journal: :archives of razi institute 2016
m. moharrami h. modirrousta

acute bee paralysis virus (abpv) is a small single stranded rna virus recently classified within the family dicistroviridae, genus cripavirus. here, we describe the first study of abpv in unhealthy bee colonies, which has been an unusual loss in adult bee population and significant honey bee mortality during the year. the aim of this study was evaluation of abpv infection in honey bee colonies ...

Journal: :journal of advances in computer engineering and technology 0
azita yousefi payame noor university,tehran,iran. bita amirshahi payame noor university,tehran.iran

abstract— in this paper we have tried to develop an altered version of the artificial bee colony algorithm which is inspired from and combined with the meta-heuristic algorithm of firefly. in this method, we have tried to change the main equation of searching within the original abc algorithm. on this basis, a new combined equation was used for steps of employed bees and onlooker bees. for this...

اسدی, مهدیه, بهادر, یاسر, خضری, امین, محمدآبادی, محمدرضا, مدحتی, لیلا,

The aim of this study was assestment of genetic diversity for honey bee populations in Kerman province using two inter simple sequence repeat (ISSR) primers. In this study, 30 samples from 6 populations (Kerman, Jiroft, Raein, Rabor, Bardsir and Flo) were collected. While using (AC)8G and (AGAC)4GC primers in PCR, DNA profiles of bees were found to possess 16 polymorphic fragments. The number o...

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