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An additional cause that may be specific to insects is light pollution (research in that area is ongoing). [7] [8] [9] Most commonly, the declines involve reductions in abundance, though in some cases entire species are going extinct. The declines are far from uniform.
Like several other invasive ants, such as the red imported fire ant (Solenopsis invicta), the big-headed ant (Pheidole megacephala), the little fire ant (Wasmannia auropunctata), and the Argentine ant (Linepithema humile), the yellow crazy ant is a "tramp ant", a species that easily becomes established and dominant in new habitat due to traits ...
Humans arrived in Australia between 80,000 and 45,000 years ago, living alongside megafauna for 20,000–25,000 years [8] [9] [10] before the megafaunal extinctions that were likely caused by, or partly contributed to by, late Pleistocene climate change; [11] [12] however, the full reason for the extinctions is still unclear and human hunting ...
Despite the strong empirical evidence and highly visible collapse-inducing disturbances, anticipating collapse is a complex problem. The collapse can happen when the ecosystem's distribution decreases below a minimal sustainable size, or when key biotic processes and features disappear due to environmental degradation or disruption of biotic ...
[345] [346] In Texas alone, red imported fire ants caused $300 million in damages for livestock, wildlife and public health. [347] Approximately $36 per American household, and more than $250 million has been spent to control and eradicate red imported fire ants. Private agencies spend $25 to $40 million on pesticides annually. [94]
A 2017 analysis found that the mountain goat populations of coastal Alaska would go extinct sometime between 2015 and 2085 in half of the considered scenarios of climate change. [102] Another analysis found that the Miombo Woodlands of South Africa are predicted to lose about 80% of their mammal species if the warming reached 4.5 °C (8.1 °F). [1]
Argentine ants sometimes tend aphid, mealybug, and scale insect colonies, [49] sometimes relocating the parasites to unaffected plants, and their protection of these plant pests from predators and parasitoids can cause problems in agricultural areas. [50] In return for this protection, the ants benefit by feeding off an excretion known as ...
The subfamily Formiciinae represents one extinct genus of ants dating back to the Eocene. [b] Ants of the genus Titanomyrma are the largest ants ever known, with queen specimens the size of small hummingbirds. Fossils have been collected from the state of Wyoming and in Germany. [106] [107]