The European honey bee, also known as the honey fly (Apis mellifera), is a domesticated honey bee species native to Europe. It is considered semi-domesticated. It is one of the bee species bred on a large scale for honey production.
Metamorphosis is a major transformation of the body and way of life during the development and life cycle of certain animals, such as amphibians and some insects. It represents an evolutionary adaptation of an organism to its respective environmental conditions. In zoology, it refers to the transformation from the larval form to the adult, sexually mature animal.
Melliferous plants, apicultural plants, mellitophilous plants… all these terms refer to plants that are of interest to bees. But what do they really mean, and which term is the most appropriate?
The bee is an insect belonging to the order Hymenoptera (together with wasps, ants, etc.). Hymenopterans are equipped with two pairs of wings, three pairs of legs, and articulated appendages. Their body is composed of three distinct parts: the head, the thorax, and the abdomen.
Sea buckthorn, whose scientific name is Hippophae rhamnoides, is an evergreen plant belonging to the botanical family Elaeagnaceae. This hardy and highly ornamental shrub, which can reach a height of up to 4 metres, has a densely branched stem with thorny shoots on which small, fleshy, orange-coloured berries develop, resulting from the development of the floral receptacle after fertilisation.
Heathers are small, bushy shrubs belonging to the Ericaceae family that grow on nutrient-poor soils. There are many species – several hundred – whose flowering periods extend almost throughout the entire year: June to August for Erica tetralix, June to October for Erica cinerea, June to December for Erica arborea, August to October for Calluna vulgaris, September to November for Erica multifolia, November to April or February to July for Erica carnea, etc.
Based on the videoconference by Prof. Joseph Hemmerlé on 11.01.2025, School of Agriculture Châteauneuf / Sion
Swarming is a natural phenomenon at the core of honey bee colony dynamics. Through this process, part of the colony, led by the old queen, leaves the hive to establish a new nest. For beekeepers, swarming represents a challenge, but it also constitutes an opportunity for colony renewal. Thanks to the in-depth research and careful observations conducted by Professor Joseph Hemmerlé, it is possible to gain a better understanding of the biological, ethological, and environmental mechanisms underlying this fascinating behaviour.
Is it because it provides honey and wax? Or because its sophisticated organisation strangely echoes human societies? Or perhaps because of a character that is at once fierce and disciplined, making its domestication uncertain, or because of the way it positions itself at the confluence of the plant and animal worlds. Protean and tinged with mystery, the fascination exerted by the bee has endured for millennia, albeit with periods of interruption.
Bees do not close their eyes throughout their lives. Nevertheless, their activities are influenced by an intracerebral protein (pigment-dispersing factor, PDF), which enables them, among other things, to orient themselves in relation to the position of the sun.
The first difficulty for a beginner beekeeper is choosing a hive. There are many systems, and all of them have their advantages and disadvantages, their supporters and their critics. It is important to choose hives carefully so that the colony develops well, production is satisfactory, overwintering proceeds properly, and beekeeping remains a pleasure. Dadant, Langstroth, Voirnot, Alsacienne, WBC, Warré, Layens, Simplex, Zander, National … and all the others: which is the best hive? How can one make a decision when starting out in beekeeping and the opinions of the “experienced beekeepers” diverge?
It may happen, for example during the first spring inspection, that one encounters a moribund colony with no food reserves, with frames showing scattered brood of the male type … What has happened?
Figure 1: Drone-laying colony: very small population, scattered drone brood, no worker brood, low food reserves, no visible queen, deformed combs, drone cells.
When one speaks of alfalfa, one first thinks of cultivated alfalfa, Medicago sativa, a perennial herbaceous plant native to the Middle East with blue-violet flowers; however, there are other species with flowers in different shades, ranging from yellow to white, via green and brown. All are highly melliferous.
Among the various goldenrod species with invasive characteristics are the late or giant goldenrod (Solidago gigantea) and the Canadian goldenrod (Solidago canadensis). It is rather difficult to distinguish between these two invasive species originating from North America, especially as they readily hybridise with one another.
Dioecious tree or shrub with deciduous leaves. The male flowers have yellow anthers; the female flowers are inconspicuous, greenish, and develop at maturity into capsules rich in seeds.
Nature ensures the multiplication of colonies through swarming, but beekeepers prefer colonies that develop well and become strong without swarming. A colony that intends to swarm (swarming fever) stops building comb and collects little nectar. Swarms are often lost, especially for beekeepers whose apiaries are far away. In addition, a parent colony that has swarmed requires special attention and care. What can the beekeeper do?
One might assume that asexual reproduction leads to an evolutionary dead end, with the accumulation of deleterious mutations ultimately resulting in species extinction. Recent studies show that this is not the case, and the drone provides a well-studied example. The particular case of reproduction in Varroa destructor is illuminating: these mites exhibit fewer deleterious mutations than other sexually reproducing insects …
Examples of asexual reproduction in certain animals include: the hammerhead shark, the leopard shark, the sawfish, the sea anemone, the Komodo dragon, the gecko, the aphid, the scale insect …
The Asian hornet has continued its expansion since its arrival in France 20 years ago.
In 2024, it has reached the borders of Valais, and the Saint-Maurice gorge will most likely not constitute an insurmountable barrier for this highly well-adapted invader.
For millions of years, honey bees have ensured the persistence of the species through swarming. Swarming is a process in which a colony divides into two populations. The resident queen leaves the hive, accompanied by a large proportion of workers of all ages, to form a swarm that quickly clusters into a tight ball. The swarm leaves behind in the original hive the nest with emerging brood, about one third of the workers, and queen cells ready to hatch. A young queen will replace the old one, and the re-formed colony will begin its development…
For honey bees, willow is one of the first food sources at the end of winter. Beekeepers time their spring inspection according to the flowering of the catkins of the male plant.
The different bee races are determined using biometric traits (coloration, indices, etc.) as well as molecular markers (mitochondrial and nuclear). Defining races allows us to understand the biogeography of the honey bee.