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The nutria (/ ˈ n juː t r i ə /) or coypu (/ ˈ k ɔɪ p uː /) (Myocastor coypus) [1] [2] is a herbivorous, [3] semiaquatic rodent from South America.Classified for a long time as the only member of the family Myocastoridae, [4] Myocastor has since been included within Echimyidae, the family of the spiny rats.
In the 1930s, colonies were accidentally introduced into the United States through the seaport of Mobile, Alabama.Despite earlier views that cargo ships from Brazil docking at Mobile unloaded goods infested with the ants, [1] recent DNA research confirmed that the likely source population for all invasive S. invicta in the United States occurred at or near Formosa, Argentina, and virtually ...
A colony can grow exceptionally fast. Colonies that housed 15–20 workers in May grew to over 7,000 by September. These colonies started to produce reproductive ants when they were a year old, and by the time they were two years old, they had over 25,000 workers. The population doubled to 50,000 when these colonies were three years old. [252]
Colonies of army ants are large compared to the colonies of other Formicidae. Colonies can have over 15 million workers and can transport 3000 prey (items) per hour during the raid period. [14] [20] When army ants forage, the trails that are formed can be over 20 m (66 ft) wide and over 100 m (330 ft) long. [20]
If other workers are present, the ant recruits carrying assistance, even if the prey is small. Cocktail ants typically eat grasshoppers, termites, wasps, and other small insects. [6] South American Crematogaster ants are also known to feed on egg sacs and spiderlings from the colonies of the social spider Anelosimus eximius. [7]
In Texas, there are many areas where you can watch turtles bask in the hot sun and swim in the fresh, shallow water. Use this handy guide Their slow-moving mannerisms and rigid shield make them ...
The host has evolved some strategies to cope with the colony damage, such as imprisonment of the invader, patrolling and removal of beetle's eggs. [5] [6] Small hive beetle can cause significant economic loss on bee colony, stored honey and package bee production. [7] Biological control method includes uses of fungi and fire ant.
The diverse geography of Texas, the second-largest state, hosts a variety of habitats for amphibians, including swamps and the Piney Woods in the east, rocky hills and limestone karst in the central Hill Country of the Edwards Plateau, desert in the south and west, mountains in the far west (the Trans-Pecos), and grassland prairie in the north ...