A land developer and several ecologists are discussing how a parcel of private land should be developed with housing, while also saving 20 hectares as natural habitat. The land developer suggests that the 20 hectares be divided into 20 separate 1-hectare areas, spread out across the area. The ecologists suggest that it would be better to have one intact parcel of 20 hectares on one side of the larger area. Which of the following arguments is accurate and would best support one of the two options for the 20-hectare natural habitat?
A) The single intact parcel would have a smaller amount of edge than the 20 separate parcels.
B) The isolated 1-hectare plots increase the ability of individuals to disperse from one habitat to another.
C) The isolated 1-hectare plots are less vulnerable to edge effects.
D) The single intact parcel will create more inbreeding in many species.

Question

Quizplus · Accepted Answer

The single intact parcel would indeed have a smaller amount of edge than 20 separate parcels, reducing edge effects that can negatively impact biodiversity and ecosystem health. Edge effects often include increased vulnerability to invasive species, greater exposure to human activities, and altered microclimates, all of which can be detrimental to native flora and fauna.

A Land Developer and Several Ecologists Are Discussing How a Parcel