Density-dependent factors primarily influence K-strategists more than R-strategists.
K-strategists are species that tend to thrive in stable environments with limited resources, and they often exhibit behaviors that reflect competition for those resources, such as longer gestation periods and higher parental care. In such populations, as density increases, factors like competition, predation, disease, and availability of resources become more significant, influencing their survival and reproduction.
On the other hand, R-strategists tend to reproduce quickly and in large numbers, often in unstable or unpredictable environments. They are less affected by these density-dependent factors, as they rely on producing many offspring to ensure that at least some survive.
Thus, the correct choice is: K-Strategists.