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There are 50% fewer insects in the world today than there were just 15 years ago and we ignore this rate of decline at our own peril. Without insects, life on earth cannot exist — it’s as ...
Abundance – simply put the numerical total of individual insects. Depending on context, it can refer to the number of insects in a particular assembly, in a geographical area, or the sum total of insects globally (regardless of which species the individuals belong to). Biomass – the total weight of insects (again regardless of species).
The problem is that if we use the garden for those reasons, so do the bugs. Many insects can plague a vegetable garden through the growing season, including aphids, cucumber beetles, squash vine ...
Bugs smeared on a windshield Impacts on a front bumper. The windshield phenomenon (or windscreen phenomenon) is the observation that fewer dead insects accumulate on the windshields and front bumpers of people's cars since the early 2000s. It has been attributed to a global decrease of insect populations caused by human activity, e.g. use of ...
Insects that live under the water have different strategies for dealing with freezing than terrestrial insects do. Many insect species survive winter not as adults on land, but as larvae underneath the surface of the water. Under the water many benthic invertebrates will experience some subfreezing temperatures, especially in small streams ...
The economic impacts of invasive species can be difficult to estimate especially when an invasive species does not affect economically important native species. This is partly because of the difficulty in determining the non-use value of native habitats damaged by invasive species and incomplete knowledge of the effects of all of the invasive species present in the U.S. Estimates for the ...
Insect species (IUCN, 2016.1) 5993 extant species have been evaluated; 4291 of those are fully assessed [a] 3144 are not threatened at present [b] 1146 to 2848 are threatened [c] 59 to 105 are extinct or extinct in the wild: 58 extinct (EX) species [d] 1 extinct in the wild (EW) 46 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
Trump has many shortcomings, but the most serious may be this: He's a 20th-century curmudgeon in a 21st-century world. He appears ready to make America as unfit for these times as he is.