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Another common winter migrant insect, found in much of North America, South America, and the Caribbean, is the green darner. Migration patterns in this dragonfly species are much less studied than those of monarchs. Green darners leave their northern ranges in September and migrate south.
These ants are commonly called "crazy ants" because instead of following straight lines, they dash around erratically. They have a broad distribution, including much of the tropics and subtropics , and are also found in buildings in more temperate regions, making them one of the most widespread ant species in the world.
Ants are active all year long in the tropics; however, in cooler regions, they survive the winter in a state of dormancy known as hibernation. The forms of inactivity are varied and some temperate species have larvae going into the inactive state , while in others, the adults alone pass the winter in a state of reduced activity. [71]
In fact, studies have described seasonal patterns in the density of previously infected dead ants, with an increase during the rainy season and a decrease during the dry season. [3] It is thought that large precipitation events at the beginning and the end of the rainy season stimulates fungal development, [ 3 ] which leads to more spores being ...
The windshield phenomenon – car windscreens covered in dead insects after even a short drive through a rural area in Europe and North America – seems also largely to have disappeared; in the 21st century, drivers find they can go an entire summer without noticing it.
The tawny crazy ant [2] [3] [4] or Rasberry crazy ant, [2] Nylanderia fulva, is an ant originating in South America. Like the longhorn crazy ant (Paratrechina longicornis), this species is called "crazy ant" because of its quick, unpredictable movements (the related N. pubens is known as the "Caribbean crazy ant").
They usually do so when the temperature is warmer and will re-emerge in the late summer or early fall. [5] Mosquitoes also are reported to undergo aestivation. [6] False honey ants are well known for being winter active and aestivate in temperate climates. Bogong moths will aestivate over the summer to avoid the heat and lack of food sources. [7]
Carpenter ants (Camponotus spp.) are large ants (workers 7 to 13 mm or 1 ⁄ 4 to 1 ⁄ 2 in) indigenous to many forested parts of the world. [ 4 ] They build nests inside wood, consisting of galleries chewed out with their mandibles or jaws, preferably in dead, damp wood.