Which of the following is correctly matched?
$I$. Alpha diversity - Number of species in a given habitat
$II$. Genetic diversity - Variation of the genes within species
$III$. Beta diversity - Diversity of the habitat in the whole region
$IV$. Species diversity - Product of the species richness and evenness
$I$, $II$ and $III$
$I$ and $II$
$I$, $II$, $III$ and $IV$
$I$, $II$ and $IV$
As estimated by Robert May, what is total number of species present on earth?
The major man made biotic factor is
Match the column $I$ with column $II$
Column $I$ | Column $II$ |
$(a)$. Thylacine | $(i)$ Russia |
$(b)$. Dodo | $(ii)$ Mauritius |
$(c)$. Quagga | $(iii)$ Australia |
$(d)$. Steller’s sea cow | $(iv)$ Africa |
The first biosphere reserve established in India for conserving the gene pool of flora and fauna and the life style of tribals is
What does ‘Red’ indicate in the $\mathrm{IUCN}$ Red list $(2004)$ ?