The phrase "availability decreased" is correct and usable in written English.
You can use it when discussing a reduction in the availability of a resource, service, or product.
Example: "Due to the recent supply chain issues, the availability decreased significantly, impacting our ability to meet customer demand."
Alternatives: "availability diminished" or "availability reduced".
Although SBAs were available in district hospitals, availability decreased in remote health facilities, possibly because isolation and safety issues made SBAs reluctant to work in such areas.
Mitochondrial NAD+ is available in excess, meaning that the biomass synthesis would improve if its availability decreased.
Micronutrient availability decreased over time likely due to insoluble mineral species precipitation.
The researchers examined bird-market data from 1987 to 2013, and surveyed local ornithologists and expert birdwatchers to confirm that wild populations of the species most prized as pets declined as their price went up and market availability decreased.
Compared to stagnant water levels, flooding in combination with high nutrient availability decreased horizontal expansion in two short species and increased it in two tall species, whereas flooding decreased horizontal expansion in two other short species under both nutrient levels.
The ratio of root mass of L. perenne in SS was still higher than SCK in D1 and D2 water treatments, but as water availability decreased from D1 to D2, the difference between SS and SCK decreased, and there was no significant difference between SD and SCK.
While not all of the existing research agrees that marijuana availability decreases alcohol use, a solid body of evidence points to that conclusion.
Insufficient phosphorus (P) availability decreases the yield of Zea mays, particularly for sweet corn crops grown in cool environments.
When iron availability decreases, DELLAs accumulate in the root meristem, thereby restraining root growth, while being progressively excluded from epidermal cells in the root differentiation zone.
As resources are allocated, their availability decreases leading to an increase in the probability of blocking.
Hence, the availability decreases with an increase in the average connection lifetime.
