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Many insects of small to modest size benefit from feeding on pollen of suitable plants; pollen tends to be rich in protein, plentiful in season and easily available. Many plants, such as some members of the Araceae and Zamiaceae, produce large amounts of nutritious pollen, while producing little or no nectar. The pollen of such plants attracts ...
A good predictor for when a plant will bloom and produce pollen is a calculation of the growing degree days. The color of pollen below indicates the color as it appears when the pollen arrives at the beehive. After arriving to the colony with a fresh load of pollen, the honey bee unloads its pollen from the pollen basket located on its hind legs.
Brassicogethes aeneus, the common pollen beetle, is a species of pollen beetle in the family Nitidulidae. Other common names include the rape pollen beetle and rape blossom beetle. [1] [2] It was previously known as Meligethes aeneus. [3] It is found in Europe and Northern Asia (excluding China) and North America. [2]
Common names for this genus and many other related genera in the subfamily Melolonthinae are May beetles, June bugs, and July beetles. [ 1 ] [ 2 ] They range in size from 12 to 35 mm (0.47 to 1.38 in) [ 1 ] [ 2 ] and are blackish or reddish-brown in colour, without prominent markings, and often rather hairy ventrally.
Adult beetles are omnivorous, being known to consume small arthropods, pollen, fungi, and whatever else they can find.Some species are of interest as biological control agents, as they can eat the eggs or larvae of pests.
Where the same plants have non-bee pollinators such as birds or other insects like flies, these are also indicated. Pollination by insects is called entomophily. Entomophily is a form of plant pollination whereby pollen is distributed by insects, particularly bees, Lepidoptera (butterflies and moths), flies and beetles.
A pollen count is a measurement of the number of pollen grains in a given volume of air. Pollen counts, and forecasts of pollen conditions, are routinely produced and reported to the public because high aerial pollen concentration is associated with increased rates of allergic reaction for those with conditions such as hay fever and asthma .
Pollen itself is not the male gamete. [4] It is a gametophyte, something that could be considered an entire organism, which then produces the male gamete.Each pollen grain contains vegetative (non-reproductive) cells (only a single cell in most flowering plants but several in other seed plants) and a generative (reproductive) cell.