O mundo é dos insetos

Pesquisadores resolveram esmiuçar quase 500 estudos sobre formigas disponíveis na literatura científica, em busca dos dados mais precisos sobre o total de formigas no planeta

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Para cada um dos 8,5 bilhões de seres humanos, por exemplo, a biosfera abriga a qualquer momento um mínimo de 2,35 milhões de formigas

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Para estabelecer tal cálculo com precisão, seria necessário conhecer o tamanho médio e o total de formigas de cada uma das 13.700 espécies conhecidas

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Segundo o biólogo Edward Wilson, uma sumidade mundial em formigas, os indivíduos das menores espécies medem 0,75 milímetros, enquanto os das maiores têm até 5,2 centímetros

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Assumindo que todas as formigas medem apenas 0,75 milímetros, caso colocássemos 20 quatrilhões de formigas em fila, isso mediria o equivalente a 375 mil vezes a circunferência da Terra

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E, em questão de peso, estima-se que 20 quatrilhões de formigas pesam 12 milhões de toneladas

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Mas 12 milhões de toneladas é uma massa minúscula diante das 400 a 800 milhões de toneladas de insetos predados todos os anos pelas 21 quatrilhões de aranhas estimadas em 2017

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Ou seja, as aranhas consomem anualmente entre 1,4 e 2,8 vezes a massa total da Humanidade

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A quantidade estimada de insetos no planeta, miniaturiza a quantidade de formigas ou de aranhas em três ordens de grandeza

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O biólogo Edward Wilson estimou certa vez em 10 quintilhões o total de insetos

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Ou seja, para cada formiga ou aranha há 500 insetos de quase 1 milhão de espécies descritas!

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