Q."Biodiversity plays a major role in many ecosystem services". Analyse the statement with suitable points. OR "The size of a population for any species is not static". Justify the statement with specific reference to fluctuation in the population density of a region over a period of time.

The Amazon rainforest contributes a huge amount of atmospheric oxygen and is popularly termed the 'lungs of the earth'.

The Amazon rainforest is estimated to produce a very large fraction (around 20%) of the total oxygen of the Earth's atmosphere through photosynthesis by its enormous plant biomass. Because of this majo …

David Tilman's long-term field experiments established a positive correlation between species diversity and community productivity/stability.

The relationship between biodiversity and ecosystem productivity was demonstrated by David Tilman through long-term ecosystem experiments using outdoor plots that varied in plant species diversity. He found that plots with greater species richness showed higher total biomass productivity and less year-to-year variation in productivity, i.e., diversity contributes to both stability and productivity of a community.

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The Amazon Rainforest is called the "Lungs of the Planet" for its role in oxygen production and carbon dioxide absorption.

The Amazon Rainforest, spanning much of the Amazon basin in South America (mainly Brazil), is the largest tropical rainforest in the world and is home to an extraordinary diversity of species. Owing to the massive scale of photosynthesis carried out by its vegetation — absorbing huge quantities of atmospheric carbon dioxide and releasing oxygen …

The Amazon rainforest of South America is called the 'lungs of the planet' because its enormous plant biomass carries out photosynthesis on a massive scale, producing a large share of the Earth's atmospheric oxygen and absorbing huge quantities of carbon dioxide.

The Amazon basin holds the world's largest tropical rainforest, harbouring an extraordinarily high density and diversity of plant species. Through photosynthesis, this vast expanse of vegetation releases a very large amount of oxygen into the atmosphere and simultaneously acts as a major carbon sink, absorbing carbon dioxide and helping regulate global climate. This immense contribution to atmospheric gas exchange is why it earned the nickname 'lungs of the p …

The Amazon's immense forest cover produces a huge share of the world's oxygen and absorbs vast amounts of CO₂, functioning much like a giant respiratory organ for the planet.

The Amazon rainforest, the world's largest tropical rainforest, is often called the 'lungs of the planet' because its enormous biomass of trees carries out photosynthesis on a massive scale, absorbing a substantial share of the global atmospheric carbon dioxide and, in the process, releasing a very large proportion of the oxygen present in Earth's atmosphere — analogous to how human lungs take in oxygen and expel carbon dioxide, though the Amazon's actual role is more that of a major carbon sink and oxygen source rather than literal 'breathing'. This vast forest plays a crucial role in regulating global climate and atmospheric gas balance, and its ongoing deforestation is therefore a matter of serious global enviro …

Plant conservation aims (1) to save plant species and their genetic diversity from extinction, and (2) to sustain the ecosystem services (food, oxygen, medicines, climate and soil regulation) that plants provide.

Concept

Conservation means the protection, careful management and wise use of biological resources. Plants are the producers on which all other life depends, so their protection is central to the survival of biodiversity.

Aims of plant conservation

1. Protect species and genetic diversity — prevent the extinction of rare, endemic and economically or medicinally important plants and preserve their gene pool for the future (a source of new crops, medicines and resistant varieties). …