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Phantasy [73]
3 years ago
15

The current global ecological footprint of each person is about 2.7 hectares. The Earth presently has 11.4 billion hectares of p

roductive land and water. If we divide this usable area by the global human population of approximately 6 billion, this means:________.
Biology
1 answer:
amid [387]3 years ago
8 0

Answer:

This means that there would be an ecological surplus, the allotted footprint of 1.9 hectares per person has been exceeded.

Explanation:

Ecological footprint measures our use and demand of nature and how much nature we have. It measures how much quantity of nature can be used to support people or an economy and it tracks this demand through an ecological accounting system.

Ecological surplus or deficit measures what is left over or how little a country's biocapacity is available. It is calculated by subtracting the country's ecological footprint per person from the country's biocapacity per person. They are both measured in global hectares (gha)

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Answer:

Nuestro planeta esta habitada por numerosas <em>especies</em>, muchas de ellas extendidas en grandes y diversas zonas. Sin embargo, existen especies que habitan una sola <em>área/región</em> con características<em> ambientales</em> únicas para su desarrollo.

Explanation:  

Entre las miles de especies que habitan el planeta, muchas de ellas pueden estar ampliamente distribuidas, mostrando adaptaciones a una gran variedad de ambientes y hábitats, mientras que muchas otras solo se encuentran restringidas a determinadas areas o regiones particulares que presentan condiciones ambientales determinadas. Esta diferencia en distribución esta muy relacionada a la historia de la especie,  a la edad de la misma sobre la tierra, adaptaciones a los ambientes y capacidades reproductivas y de dispersión.

Dentro de la clasificación de especies de acuerdo a su distribución, podemos mencionar a las especies

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  • invasoras: especies exoticas que llegan a otras areas, que se establecen y que tienen la capacidad de reproducirse a una tasa superior a la de las especies nativas, invadiendolas y desplazandolas. Interactuan con las especies nativas y causan daños importantes.

Los términos nativos, endemicos, exóticos son <em>relativos al área a la que se esté haciendo alusión</em>: un continente, un país, una región o un bioma.

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