Check all of the following mechanisms by which early colonizers may positively impact the occurrence of other species through succession. Check All That Apply Early colonizing trees that establish a new habitat may block the sun, inhibiting smaller weeds from colonizing the habitat. Early colonizing trees that establish a new habitat may block the sun, inhibiting smaller weeds from colonizing the habitat. Colonization by plants may provide habitat, facilitating colonization of animal species. Colonization by plants may provide habitat, facilitating colonization of animal species. Early colonizing plants may increase the nutrient level of the soil, facilitating the colonization of other plant species. Early colonizing plants may increase the nutrient level of the soil, facilitating the colonization of other plant species. Animal colonizers may increase pollination of some plant species, facilitating their colonization. Animal colonizers may increase pollination of some plant species, facilitating their colonization. Plant species may alter the chemical composition of the soil, inhibiting other plant species. Plant species may alter the chemical composition of the soil, inhibiting other plant species.