A locally found pathogenic fungus, Beauveria australis, has for the first time been observed infecting imported dung beetles in Australia.
Ecology
Jun 2, 2023
0
11
The mountain pine beetle is one of the main causes of tree mortality in the pine forests of North America. For example, the insect has killed thousands of acres of pine forest in British Columbia and Alberta, and as a result, ...
Ecology
May 9, 2023
0
35
Which energy type promotes the biodiversity of beetles living in dead wood in the forest? That depends entirely on where the beetles are in the food chain.
Ecology
May 9, 2023
0
3
Beetles usually rely on the help of bacterial partners to survive. These symbioses can have different functions. Bacterial symbionts may help digest plant material, make the beetles more resistant to plant defenses, or provide ...
Plants & Animals
Apr 24, 2023
0
42
Life existed without human beings for more than 99.9% of Earth's history. Yet we often ignore the achievements of species that preceded us by billions of years.
Plants & Animals
Apr 19, 2023
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14
New fossils in amber have revealed that beetles fed on the feathers of dinosaurs about 105 million years ago, showing a symbiotic relationship of one-sided or mutual benefit, according to an article titled "Symbiosis between ...
Evolution
Apr 17, 2023
0
284
The alnus ambrosia beetle Xylosandrus germanus, also known as the black stem borer, was accidentally introduced by humans from its native east Asia to North America and Europe around the beginning of the 20th century. X. ...
Ecology
Apr 14, 2023
0
866
Ponderosa pine forests in the Sierra Nevada that were wiped out by western pine beetles during the 2012-2015 megadrought won't recover to pre-drought densities, reducing an important storehouse for atmospheric carbon.
Plants & Animals
Apr 5, 2023
0
141
When University of California, Berkeley, entomologist Kipling Will first heard that former Gov. Jerry Brown was hosting field scientists on his Colusa County ranch, he jumped at the chance to hunt for beetles on the property.
Plants & Animals
Mar 27, 2023
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15
A recent modeling study shows that bark beetle outbreaks in forests won't necessarily cause bigger and more damaging wildfires—at least not for awhile.
Earth Sciences
Mar 24, 2023
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4
Adephaga Archostemata Myxophaga Polyphaga See subgroups of the order Coleoptera
Beetles are the group of insects with the largest number of known species. They are classified in the order Coleoptera (pronounced /ˌkoʊliˈɒptərə/; from Greek κολεός, koleos, "sheath"; and πτερόν, pteron, "wing", thus "sheathed wing"), which contains more described species than in any other order in the animal kingdom, constituting about 25% of all known life-forms. 40% of all described insect species are beetles (about 350,000 species), and new species are frequently discovered. Estimates put the total number of species, described and undescribed, at between 5 and 8 million. The largest family also belongs to this order—the weevils, or snout beetles, Curculionidae.
Beetles can be found in almost all habitats, but are not known to occur in the sea or in the polar regions. They interact with their ecosystems in several ways. They often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are prey of various animals including birds and mammals. Certain species are agricultural pests, such as the Colorado potato beetle Leptinotarsa decemlineata, the boll weevil Anthonomus grandis, the red flour beetle Tribolium castaneum, and the mungbean or cowpea beetle Callosobruchus maculatus, while other species of beetles are important controls of agricultural pests. For example, beetles in the family Coccinellidae ("ladybirds" or "ladybugs") consume aphids, scale insects, thrips, and other plant-sucking insects that damage crops.
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