Question

An island ecosystem is said to be the most vulnerable.
A. Due to its small size and lesser number of species.
B. Due to its large size and large number of species.
C. Due to its large size only.
D. Due to its small size only.

Answer 1

Hint: Island ecosystems are particularly liable to temperature change as a result of island species populations tend to be little, localized, and extremely specialized, and so will simply be driven to extinction; Coral reefs, which offer variety of services to island individuals, are sensitive to temperature and chemical changes in brine


Complete step by step solution:
Many island system elements offer important merchandise and services, like protection against extreme environmental condition events, whereas conjointly providing surroundings for marine animals and reef fish.
Before a species becomes extinct, it should 1st be rare. Some species are naturally rare, whereas others have that rarity obligatory upon them by one or additional of the factors mentioned higher than. Some species are rather more vulnerable than others to turning into perilously rare, and different species, when rare, are additional seemingly than others of equal rarity to succumb.
The restricted habitats that species wear on islands, however, makes them exceptionally vulnerable. Foreign species introduced to associate degree islands either accidentally or deliberately by humans will quickly out vie or directly destroy native populations.
In Hawaii and most different tropical islands, as an example, foreign species like rats, feral cats, pigs, goats and non-native plants have decimated the native flora and fauna that haven't evolved to deal with the pressure from these introduced species.
The identification of species, communities, or ecosystems that are seemingly to be powerfully broken by human activities (i.e. that are fragile) forms a necessary part of nature conservation management. we have a tendency to review the which means of system fragility, that we have a tendency to outline because the inverse of system stability.

Hence, option A is correct.



Note:
Therefore, relating ecosystems to the disturbances that job there will offer helpful assessments, associate degree approach closely associated with environmental impact assessment. Basically, fragility associate's degrees of stability of a system relate to degree of modification in species abundance and composition, following disturbance.The range of ecological processes associated with these changes makes.