Why might an Oaktree population decrease in a community?

An oak tree population may decrease in a community due to factors such as habitat loss from urban development or deforestation, which reduces available space for growth. Additionally, environmental stressors like climate change, pests, and diseases can weaken or kill trees. Competition from invasive species can also hinder oak regeneration. Lastly, changes in land management practices, such as increased herbicide use or fire suppression, can negatively impact oak survival and reproduction.