Shedding light on declines in diversity of grassland plants
Publisher DOI
PubMed ID
36323896
Abstract
A field experiment provides a new way to investigate the mechanisms by which grazing, fertilizer use and light availability can affect the biodiversity of a grassland plant community.
How different plant species coexist is a central question in ecology. In an era of global change and rapid species loss, understanding the mechanisms that affect biodiversity is a matter of urgency. Research shows that adding nutrients to the soil through the use of fertilizer, or removing large grazing animals, such as cattle and sheep, reduces the diversity of plant species in grasslands. Plants generally grow taller when nutrients are added or when grazers are removed, and these tall, fast-growing plants are thought to reduce diversity because they can monopolize access to light and shade out smaller plants.
How different plant species coexist is a central question in ecology. In an era of global change and rapid species loss, understanding the mechanisms that affect biodiversity is a matter of urgency. Research shows that adding nutrients to the soil through the use of fertilizer, or removing large grazing animals, such as cattle and sheep, reduces the diversity of plant species in grasslands. Plants generally grow taller when nutrients are added or when grazers are removed, and these tall, fast-growing plants are thought to reduce diversity because they can monopolize access to light and shade out smaller plants.
Date Issued
2022-11-02
Publication Type
Article
Subject(s)
Language(s)
en
Additional Credits
Journal
Nature
Publisher
Springer Nature
ISSN
1476-4687
Access(Rights)
restricted