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Question 12·Hard·Cross-Text Connections

Text 1
In studies of ecological succession, some researchers emphasize priority effects: the idea that the species that arrive first can shape which species are able to thrive later. According to this view, early colonizing plants can change a site’s soil nutrients and light levels in ways that create long-lasting feedbacks, so that the composition of the mature community is strongly determined by the identity of those initial colonizers.

Text 2
A team of ecologists tested priority effects in recently abandoned agricultural fields by establishing plots that were seeded with one of two early plant mixes: a fast-growing grass mix or a mix dominated by nitrogen-fixing shrubs. For the first two years, the plots differed markedly: the grass-seeded plots had fewer tree seedlings, while the shrub-seeded plots showed higher soil nitrogen. By year seven, however, the researchers found that tree cover, understory diversity, and most soil measurements were similar across all plots, and that factors such as slope and moisture explained more of the remaining variation than the original seeding treatment.

Based on the texts, how would the researchers in Text 2 most likely respond to the view presented in Text 1?