INVESTIGADORES
TOGNETTI Pedro Maximiliano
congresos y reuniones científicas
Título:
Herbivory exclusion and nutrient enrichment additively decrease grassland legumes globally
Autor/es:
TOGNETTI PM; PROBER SM; SCHUETZ M; NUTRIENT NETWORK CONSORTIUM; RISCH AC
Lugar:
Edimburgo
Reunión:
Congreso; British Ecological Society Meeting; 2022
Institución organizadora:
British Ecological Society
Resumen:
Nutrients and herbivores interactively affect plant communities, but some functional groups may be particularly susceptible to changes in these two drivers. N-fixing legumes, specialized in nitrogen acquisition, should decrease with increasing aboveground competition induced by fertilization, but the effect of herbivore exclusion and its interaction with fertilization is elusive. With a coordinated experiment including 42 grasslands in six continents, we assessed how nutrient enrichment and grazing exclusion effects impacted grassland legume cover. On average, nutrient enrichment (Size effect=-0.06) and herbivory exclusion (Size effect=-0.05) additively reduced legume cover relative to untreated controls; and this negative effect intensified with time [Time*Fence & Time*NPK: p
