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Stress Decreases Pollen Foraging Performance in Honeybees Célia Bordier1, Simon Klein2,3, Yves Le Conte1, Andrew B
© 2018. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2018) 221, jeb171470. doi:10.1242/jeb.171470 SHORT COMMUNICATION Stress decreases pollen foraging performance in honeybees Célia Bordier1, Simon Klein2,3, Yves Le Conte1, Andrew B. Barron3,* and Cédric Alaux1,*,‡ ABSTRACT depletion (Kralj and Fuchs, 2010; Alaux et al., 2014; Naug, 2014; Foraging in honeybees is energetically demanding. Here, we Wolf et al., 2014). Stressors may also affect forager decision- examined whether stressors, which generally increase metabolic making processes as a consequence of the energetic challenges of demands, can impair foraging performance. A controlled non- the stressor, in which case bees may show a preference for pathogenic stressor (immune challenge) resulted in a change in the carbohydrate-rich resources to supply their own energy needs. The foraging preferences of bees. It reduced pollen foraging and finding that the gene coding for the pheromone biosynthesis- increased the duration of trips in pollen foragers. Stress also activating neuropeptide, a neuropeptide known to be present at reduced the amount of octopamine in the brain of pollen foragers (a higher levels in nectar foragers than in pollen foragers (Brockmann biogenic amine involved in the regulation of foraging and flight et al., 2009), is over-expressed in parasitized bees (McDonnell et al., behaviour in insects). According to the literature, flight metabolic rate 2013) provides some indirect support for this hypothesis. Stress can is higher during pollen foraging than during nectar foraging, and decrease sucrose responsiveness (Pankiw and Page, 2003), which is nectar gives a higher energetic return relative to the foraging effort lower in nectar foragers than in pollen foragers (Pankiw and Page, when compared with pollen. -
Colony Growth and Seasonal Management of Honey Bees
Colony Growth and Seasonal Management of Honey Bees Management of honey bees varies based on whether Although honey is essential food for bees, colonies pollination or honey production is the primary objective. cannot grow without sufficient amounts of incoming A simple scheme for those interested in maximizing honey pollen. Pollen contains the essential amino acids, sterols, production can be a template for any beginning beekeeper. minerals, and vitamins that bee larvae need to grow into Managing honey bees involves seasonal manipulations adult honey bees. Bee colonies cannot grow without brood of hive space to provide room when necessary for the production, and brood production hinges on good-quality expanding brood-rearing area and for storage of surplus nutrition that comes from pollen. Hence, bee colonies grow honey. Good management includes reducing colony space largest during or just after periods of maximum numbers during periods of dearth of incoming food, preventing of blooming plants in the spring and autumn (Figure 1). swarming of bees, feeding food supplements to offset any These periods are called honey flows. shortcomings in winter stores or to help stimulate brood Blooming of food plants can be predicted by a crude production during critical periods of colony development, geographic rule of adding a 1-week delay in bloom for keeping young and good-quality queens in colonies, and every 200 miles or so northward in latitude. For example, if managing diseases and parasites. sumac is blooming heavily in southern Mississippi during the first week of May, a person living near the Mississippi- Basic Growth Cycle Tennessee border might expect sumac to bloom from the Good seasonal management begins with understand- third week of May into the beginning of June. -
Establishing a Honey Bee Colony
ESTABLISHING A HONEY BEE COLONY SUCCESS IN THE FIRST YEAR Meghan Milbrath, April 2016 Honey bees colonies should live from year to year in most climates where they are kept. Just like other perennials, new honey bee colonies require different care when they are started and their management changes as they become older and more established. In beekeeping, an established colony is one that has survived a winter with a queen and cluster of bees, will generally reproduce (swarm) in spring, have sufficient comb built, and has enough bees to ensure survival (if it is kept free from environmental threats and disease). A new colony is started by one of four ways 1) purchased packages, 2) purchased nucs, 3) caught swarms, and 4) splits. In all of these cases, the population will be much smaller, will not have the same ratio of all ages of bees, and will not function like a fully operating colony. A new honey bee colony has one goal - grow large enough to have enough food to survive its first winter. In Northern climates, where the season is shorter, new colonies often cannot become fully established by the time winter sets in without extra help from the beekeeper. Picture a new colony like a baby animal, or a new fruit tree. While an older animal may be able to fend for itself, a young one cannot. And while an older fruit tree will bear fruit, a young seedling will put its energy into root production and growth. Likewise, a new honey bee colony will need more support while it is small, and it will likely not provide a crop during its first year. -
FORAGE LEGUMES Clovers, Birdsfoot Trefoil, Cicer Milkvetch, Crownvetch and Alfalfa
FORAGE LEGUMES Clovers, Birdsfoot Trefoil, Cicer Milkvetch, Crownvetch and Alfalfa Craig C. Sheaffer Nancy J. Ehlke Kenneth A. Albrecht Jacob M. Jungers Minnesota Agricultural Jared J. Goplen Experiment Station Station Bulletin 608-2018 Forage Legumes Clovers, Birdsfoot Trefoil, Cicer Milkvetch, Crownvetch and Alfalfa Craig C. Sheaffer Nancy J. Ehlke Kenneth A. Albrecht Jacob M. Jungers Jared J. Goplen Station Bulletin 608-2018 Minnesota Agricultural Experiment Station University of Minnesota Saint Paul, Minnesota The University of Minnesota shall provide equal access to and opportunity in its programs, facilities, and employment without regard to race, color, creed, religion, national origin, gender, age, marital status, disability, public assistance status, veteran status, sexual orientation, gender identity, or gender expression. Editors Craig Sheaffer, Nancy Ehlke, and Jacob Jungers are agronomists with the University of Minnesota Department of Agronomy and Plant Genetics in the College of Food, Agricultural and Natural Resource Sciences, Saint Paul, Minnesota. Jared Goplen is an Extension Educator in Crops for University of Minnesota Extension. Kenneth Albrecht is an agronomist with the University of Wisonsin’s Department of Agronomy. Acknowledgments This publication is a revision of Minnesota Agricultural Experiment Station Bulletin 597-1993, Forage Le- gumes, orginally issued in 1993 and then updated in 2003 and then again in 2018. The editors of this third edition gratefully acknowledge the contributions of the coauthors of the original publication: Harlan Ford, Neal Martin, Russell Mathison, David Rabas and Douglas Swanson. Publications editing, design and development for the Minnesota Agricultural Experiment Station is by Shelly Gustafson, experiment station communications specialist. Photos are by Dave Hansen or Don Breneman. -
Improving Forage for Native Bee Crop Pollinators
General —7 National Agroforestry Center AGROFORESTRY NOTES AF Note —33 August 2006 Improving Forage For Native Bee Crop Pollinators Introduction Agroforestry practices can provide essential habitat for bees, our most important crop polli- nators. The European honey bee receives most of the credit for crop pollination, but the num- ber of managed honey bee hives is half of what it was in the 1950s; and this number con- tinues to decline because of disease and the immigration of aggressive races of honey bees. Native bees, however, significantly contribute to crop pollination – and, in some cases, pro- vide all of the pollination. An Osmia aglaia female pollinates a black In order to support the native bee community, a raspberry flower. Photo courtesy Xerces Society wealth of flowers is necessary. Unfortunately, For Invertebrate Conservation. heavily managed farm landscapes often lack the diversity and abundance of flowers that native bees require. By providing abundant and diverse pollen and nectar sources, a diverse community of native bee species will increase, adjacent crops may yield more, growers could rely less on imported European honey bees, and farm biodiversity and other wildlife species will benefit. This Agroforestry Note discusses how to maximize the ability of an agroforestry practice to support crop-pollinating bees, including a step-by-step method for planning forage enhancements. Other flo- ral visitors, like butterflies, do not pollinate crops, but will also benefit from the techniques below. Step 1: Identify Existing pollen and nectar sources can often be found near fencerows or hedgerows, riparian buffers, and protect bee other natural areas, or any place on or around the site where a variety of plants (weeds or otherwise) forage already in grow. -
Bee Bodies Honey Bee Anatomy
BEE BODIES HONEY BEE ANATOMY Essential Question: HOW DOES A HONEY BEE’S STRUCTURE SUPPORT ITS FUNCTION IN THE ECOSYSTEM? LEARNING OBJECTIVES n Distinguish between the structural and behavioral adaptations of the honey bee. n Investigate and infer the function of basic adaptations. n Explain how different organisms use their unique adaptations to meet their needs. RESOURCES MATERIALS • Image, Bee Pollen Baskets • Chart Paper • Writing Utensils • Image, Bee Body • Markers • Reading, Bee Bodies • Journals, Paper, or Digital • Assessment, Which Bee Notebooks Body Part? OVERVIEW OF LESSON / BACKGROUND Most people can describe or draw a basic bee: black and yellow stripes, wings, a 3-part body. This lesson will take students beyond the basics by bringing the honey bee’s amazing anatomy and structures alive. From the pollen basket to the hairy eyes, bees are creatures that inspire wonder and curiosity. Although each of the 20,000 species of bees in the world has something in common with the next, this lesson focuses on honey bees: the only insects that produce food for humans. In order to survive, thrive, and perform their work in the world, honey bees have evolved with a fascinating anatomy and specific adaptations. This detailed, up-close look at both the structures and the functions of honey bee anatomy will help students understand the bee’s place in the world. Honey bees have many parts that are easily recognizable: a head, thorax, abdomen, legs, antennae, eyes, wings, etc. They also have a corbiculae (or pollen basket), tiny hairs on their eyes, a proboscis, and hooks (or hamuli) that hold their wings together in flight. -
The Role and Significance of Stingless Bees (Hymenoptera: Apiformes: Meliponini) in the Natural Environment
Environmental Protection and Natural Resources Vol. 30 No 2(80): 1-5 Ochrona Środowiska i Zasobów Naturalnych DOI 10.2478/oszn-2019-0005 Jolanta Bąk-Badowska*, Ilona Żeber-Dzikowska*, Barbara Gworek**, Wanda Kacprzyk***, Jarosław Chmielewski**** The role and significance of stingless bees (Hymenoptera: Apiformes: Meliponini) in the natural environment * Jan Kochanowski University in Kielce, ** Warsaw University of Life Sciences, *** Institute of Environmental Protection-National Research Institute, **** Wyższa Szkoła Rehabilitacji w Warszawie; e-mail: [email protected] Keywords: Stingless bees, biology, ecology, economic significance Abstract This article refers to the biology and ecology of stingless bees (Meliponini), living in tropical and subtropical areas. Similar to honey bees (Apis mellifera), stingless bees (Meliponini) belong to the category of proper social insects and are at the highest level of social development. This group of insects comprises about 500 species and they are the most common bees pollinating the native plants in many tropical areas. Families of stingless bees are usually quite numerous, reaching up to 100,000 individuals. They are characterised by polymorphism, age polyethism and perennialism. This article presents the structural complexity of natural nesting of these tropical insects and their ability to settle in artificial nest traps. The main significance of stingless bees for humans is their role in the natural environment as pollinators, which is an essential factor influencing biodiversity. © IOŚ-PIB 1. INTRODUCTION Ctenoplectridae). Similarly, as in Europe, representatives Bees (Apiformes) represent a very important element of 6 families occur in Poland: Colletidae, Andrenidae, influencing biodiversity; as active pollinators. They play Halictidae, Melittidae, Megachilidae and Apidae; the latter a key role in maintaining the species richness of many includes the Anthophoridae. -
Forage and Habitat for Pollinators in the Northern Great Plains—Implications for U.S
Prepared in cooperation with the U.S. Department of Agriculture Forage and Habitat for Pollinators in the Northern Great Plains—Implications for U.S. Department of Agriculture Conservation Programs Open-File Report 2020–1037 U.S. Department of the Interior U.S. Geological Survey A B C D E F G H I Cover. A, Bumble bee (Bombus sp.) visiting a locowood flower. Photograph by Stacy Simanonok, U.S. Geological Survey (USGS). B, Honey bee (Apis mellifera) foraging on yellow sweetclover (Melilotus officinalis). Photograph by Sarah Scott, USGS. C, Two researchers working on honey bee colonies in a North Dakota apiary. Photograph by Elyssa McCulloch, USGS. D, Purple prairie clover (Dalea purpurea) against a backdrop of grass. Photograph by Stacy Simanonok, USGS. E, Conservation Reserve Program pollinator habitat in bloom. Photograph by Clint Otto, USGS. F, Prairie onion (Allium stellatum) along the slope of a North Dakota hillside. Photograph by Mary Powley, USGS. G, A researcher assesses a honey bee colony in North Dakota. Photograph by Katie Lee, University of Minnesota. H, Honey bee foraging on alfalfa (Medicago sativa). Photograph by Savannah Adams, USGS. I, Bee resting on woolly paperflower (Psilostrophe tagetina). Photograph by Angela Begosh, Oklahoma State University. Front cover background and back cover, A USGS research transect on a North Dakota Conservation Reserve Program field in full bloom. Photograph by Mary Powley, USGS. Forage and Habitat for Pollinators in the Northern Great Plains—Implications for U.S. Department of Agriculture Conservation Programs By Clint R.V. Otto, Autumn Smart, Robert S. Cornman, Michael Simanonok, and Deborah D. Iwanowicz Prepared in cooperation with the U.S. -
Planting Forage for Honey Bees in Canada a Guide for Farmers, Land
Planting Forage for Honey Bees in Canada A guide for farmers, land managers, and gardeners Planting Guide Guide Planting Planting This guide entitled Planting Forage for Honey Bees in Canada: A guide for farmers, land managers, and gardeners, was produced by Pollinator Partnership Canada. The guide was commissioned for discussion purposes by Agriculture and Agri-Food Canada (AAFC) on behalf of the Bee Health Roundtable, an industry-government forum. The content of this guide does not necessarily reflect the opinions or interests of the entire Bee Health Roundtable membership or AAFC, nor does it necessarily reflect the opinions or interests of all parties interviewed during the researching of this guide. The recommendations resulting from the guide are not binding on any participant of the VCRTs or AAFC. © HER MAJESTY THE QUEEN IN RIGHT OF CANADA 2017 as represented by the Minister of Agriculture and Agri-Food - Department of Agriculture and Agri-Food Canada 2 Planting Forage for Honey Bees in Canada: A guide for farmers, land managers, and gardeners Why Support Honey Bees? _________________________________4 About this Guide ___________________________________________5 Honey Bees _______________________________________________6 Where to Put Honey Bee Forage _____________________________8 How to Preserve, Enhance, Maintain __________________________9 Plant Selection and Design _________________________________11 Site Preparation and Invasive Species ______________________ 12 Integrative Vegetation Management ________________________ 13 -
Texas Master Beekeeper Program Advanced Level Module What Is Pollen?
POLLINATION Texas Master Beekeeper Program Advanced Level Module What is pollen? • Main protein source for honey bees. • Necessary for honey bee growth and development. • Composed of many different components: • Water, crude protein, ether extract, carbohydrates, starch, lipids, and other unknowns. • The quantity of these components vary between pollen sources. Where does pollen come from? • Produced by the stamen (male reproductive part of a flower). • Pollen needs to be transferred from stamen to stigma (female reproductive part of a flower) for pollination to occur. • Bees play a major role in pollinating plants. Credit: Department of Entomology and Nematology, University of Florida Where does pollen come from? • All plants vary in the amount and quality of pollen that the flowers produce. • Plants can either: • Produce lots of low quality pollen • Ex: raspberry, blackberry, sunflower, pine • Produce very little of high quality pollen • Ex: canola, almond Why do bees need pollen? • Pollen is necessary for the growth and development of honey bees. • Larvae are fed both brood food and bee bread. • Soon after emergence, bees will consume bee bread to finalize their development. • One worker larvae requires 124-145 mg of pollen. • High protein content longer life • Low protein content decrease in brood rearing • Protein content is key for a healthy hive. Pollen collection • A colony requires 15-55kg of pollen each year. • A single colony can collect ~57kg of pollen per year. • 15-30% of foragers collect pollen. • Pollen is chosen by its odor and grain shape, not by its nutritional value. Pollen collection - Corbicula • Honey bees carry pollen on the corbicula (“pollen basket”) • Located on the last pair of legs. -
Common Pollinators of British Columbia – a Visual Identification
COMMON POLLINATORS OF BRITISH COLUMBIA A Visual Identification Guide Created by Border Free Bees and the Environmental Youth Alliance 1 · Navigation Honey Bee Bumble Bee Other Bees Hover Fly Butterfly Wasp Navigation 2 Introduction 3 Insight Citizen Science 3 Basic Insect Anatomy Pollinator Categories 4 Honey Bee 8 Bumble Bee 12 Other Bees 20 Hover Fly 24 Butterfly 28 Wasp 31 Complimentary Resources 32 Acknowledgments 33 Field Notes Introduction This visual guide was created to help as a field guide to use in comparing educate the public on how to identify closely similar species. Rather, treat common pollinators in British Columbia. this guide as a visual aid to direct your Bees are by far the most representative skills towards different families of group, and critically important bees and general characteristics you to providing pollination service to may be able to see while outdoors. terrestrial ecosystems and agricultural The guide breaks pollinators down landscapes. They effectively transfer into 6 categories: Honey Bees, Bumble pollen with feather-like hairs on their Bees, Other Bees, Wasps, Hover Flies and bodies capturing pollen grains. It is Butterflies. With a basic understanding estimated that there are around 500 of the characteristics that differentiate species of bees in British Columbia. these types of pollinators you can This guide serves as an introduction to participate in pollinator citizen science the common groups of pollinators that programs with ease. you may observe, and does not stand Basic Insect Anatomy Antenna Proboscis (tongue) Compound Eye Insight is a mobile app created by Border Free Bees that Thorax makes it easy for citizens to record pollinator observations Forewing using their smart phones. -
The Benefits of Pollen to Honey Bees1 Amanda Ellis, Jamie D
ENY152 The Benefits of Pollen to Honey Bees1 Amanda Ellis, Jamie D. Ellis, Michael K. O’Malley, and Catherine M. Zettel Nalen2 The honey bee’s basic nutritional requirements are similar to those of humans; namely, they need proteins (amino acids), carbohydrates (sugars), minerals, fats/lipids (fatty acids), vitamins, and water. In order to meet their nutri- tional requirements, honey bees collect nectar, pollen, and water. Bees forage for water at almost any source close to their colonies. These sources include ponds, streams, leaky taps, the neighbor’s pool, dog dishes, and bird baths. During hot weather, honey bees use water to cool the colony by fanning and evaporating water droplets inside the hive. Water may also provide essential minerals in addition to hydration. Honey bees consume processed nectar (honey) and pollen (bee bread), both of which are provided by flowers (Figure 1). Nectar, which bees convert to honey, serves as the primary source of carbohydrates for the bees. It provides energy for flight, colony maintenance, and general daily ac- Figure 1. Honey bee on an orange blossom. tivities. Without a source or surplus of carbohydrates, bees Credits: Honey Bee Research and Extension Laboratory, University of will perish within a few days. This is why it is important to Florida make sure that colonies have sufficient honey stores during the winter months. Colonies can starve quickly! Nectar also Pollen Content is a source of various minerals, such as calcium, copper, Pollen, in the form of bee bread, is the honey bee’s main potassium, magnesium, and sodium, but the presence and source of protein and it also provides fats/lipids, minerals, concentration of minerals in nectar varies by floral source.