I am a ornithologist working in Japan and I'm trying to translate a Japanese word, "経年" "けいねん" pronounced "ke i nen", which means change over time or aging but since my English skills are not where they used to be. I am stumped on what word choices to use for changes over time. It's closest to Temporal Change maybe? Temporal is change with time but can it mean change over time as well? Any clue?
The word should fit in this sentence:
The changes over time of nesting sites and population size...