The Society for Conservation Biology We defined old records as those collected prior to 1970, a threshold representing more than 3 generations for most DD species This date is comparable to other biodiversity indicators (Butchart et al 2010) We defined new species as species discovered within 10 years of the group assessment Justifications for listing as DD are not mutually
Insect Pests and Crop Losses - SpringerLink Of the various insect species, around a dozen species cause serious damage (Mathur 1994) Sorghum is the fifth most important cereal crop in the world after wheat, rice, maize and barley It is grown in the arid and semiarid parts of the world About 150 insect species have been reported as pests on sorghum (Sharma et al 2005)
Edible insects: Challenges and prospects - Huis - 2022 . . . Introduction There are early publications that give an overview of insects eaten all over the world, most well-known are those of Bodenheimer and Bergier () The examples given in these two publications are mainly those of the tropical world, very likely because insects are easier available in warmer climates than in temperate zones (Van Huis 2018): 1) although most insect species are
Dengue fever cases are rising: Whats causing the outbreak . . . Since 2021, cases of dengue, also known as ‘break-bone fever’ due to the body aches it causes, have doubled each year Between January and September 2024, there were more than 12 7 million cases in total – almost double the 6 5 million cases reported in 2023 – as well as 8,791 deaths, according to the World Health Organization (WHO)
Maple - Wikipedia Acer is a genus of trees and shrubs commonly known as maples The genus is placed in the soapberry family Sapindaceae [1] [2] There are approximately 132 species, most of which are native to Asia, [3] with a number also appearing in Europe, northern Africa, and North America
DDT - Wikipedia From 1950 to 1980, DDT was extensively used in agriculture – more than 40,000 tonnes each year worldwide [20] – and it has been estimated that a total of 1 8 million tonnes have been produced globally since the 1940s [1]
History of chemistry - Wikipedia Small amounts of natural gold have been found in Spanish caves used during the late Paleolithic period, around 40,000 BC [5] The earliest gold metallurgy is known from the Varna culture in Bulgaria, dating from c 4600 BC [6] Silver, copper, tin and meteoric iron can also be found native, allowing a limited amount of metalworking in ancient