The phrase "a decrease in the area of" is correct and usable in written English.
It can be used when discussing changes in size or extent, particularly in contexts like geography, biology, or economics.
Example: "The recent construction project has resulted in a decrease in the area of the wetlands."
Alternatives: "a reduction in the area of" or "a decline in the area of".
A decrease in the area of occupancy of a species is often criterion by which a species is classified as threatened (i.e. IUCN Red List).
The International Union for Conservation of Nature (IUCN) considers that a decrease in the area of occupancy (AOO) is a critical criterion for listing a species as rare, endemic or threatened.
We found a decrease in the area of the coronal holes as well as growth of their low-latitude boundaries in connection with a reversal of the polar magnetic field.
Conversely, a decrease in the area of ban oak may be attributed to heavy anthropogenic pressure on oak forests in hill states which results in indiscriminate lopping of the species.
A decrease in the area of broadleaved forests which includes species such as Terminalia belerica, T. chebula, Dalbergia sissoo, Pyrus pashia, Albizzia chinensis, Juglans regia and Celtis australis, has also been observed in the present study, primarily due to the anthropogenic pressure of the forest fringe communities.
This effect, which was reproducibly observed over six independent experiments, suggests a decrease in the area of the monolayer, which could be due to the extraction of either anandamide, or of anandamide-POPC complexes, or of POPC alone.
Although there has been a decrease in the cultivation of opium poppies in the area, there is a thriving illegal drugs economy.
As a result, an increase (decrease) in the sectional area of tendon is needed when concrete compressive strength increases (decreases).
Kongelai has a decrease of vegetation in 19 % of the area as compared to Chepareria that only has a decrease in 10%% of the area.
Computer tomography of individual muscles shows that after age 30 there is a decrease in cross-sectional areas of the thigh, decreased muscle density and increased intramuscle fat.
An area with a significant decrease in the E2E was detected in the Southeastern part of Western Africa and the area north of South Africa, where there were increasing numbers of events with a decrease in the mean wet spell length and mean precipitation and therefore a decreasing API.
