Sentence examples for populations has changed from inspiring English sources

Human exploitation of bivalve populations has changed intertidal landscapes worldwide.

How we invented old people Laura Helmuth | Slate | 9 September 2013 Basic structure of populations has changed twice in human history: around 30,000 years ago when people started living beyond the age of 30, and in the 19C when the average lifespan doubled in much of the world.

The demographic structure of human populations has changed dramatically over the last 200 years, resulting in major changes in the size and composition of gene pools.

There are few studies which utilise survey data over time to undertake enquiries as to how access among marginalised populations has changed over time and how changes within these contexts affect changes in children's schooling behaviour.

This provides a practical tool for assessing whether the spatial distribution of different populations has changed over time, for detecting cryptic shifts in the distribution of intraspecific variation, and for retrospectively monitoring potential signatures of ongoing selection all issues of central importance for management and conservation.

Studies of the evolution of species might seek to answer the question of how populations have changed genetically over several generations but might not necessarily attempt to learn what the underlying mechanisms might be.

By comparing the male spiders' appearance and behavior, they could get a handle on how much three populations had changed in the last 10,000 years.

However, dynamics of the local bank vole populations have changed in the sense that annual winter declines have become more precipitous (B. Hörnfeldt, pers. comm).

In many heavily harvested fish, populations have changed life histories, most often toward slower growth rates and earlier maturation (Olsen et al. 2004; Heino and Dieckmann 2008), and many local populations have gone extinct.

The genetic drift values suggested that the genetic composition of the wild populations had changed about 1.5-fold faster than that of the planted and recently domesticated populations since they diverged from the common ancestor.

We observed distinct birth cohort effects for both potentially HPV-associated oropharyngeal cancers and comparison site cancers, suggesting that the exposures within the underlying populations have changed over time.