scholarly journals Numerical response of predators to large variations of grassland vole abundance and long‐term community changes

2020 ◽  
Vol 10 (24) ◽  
pp. 14221-14246
Author(s):  
Patrick Giraudoux ◽  
Aurélien Levret ◽  
Eve Afonso ◽  
Michael Coeurdassier ◽  
Geoffroy Couval
Keyword(s):  
Numerical Response ◽  
Community Changes

Long-term plant community changes in managed fens in Ohio, USA

2008 ◽  
Vol 18 (4) ◽  
pp. 392-407 ◽  
Author(s):  
Matthew J. Barry ◽  
Barbara K. Andreas ◽  
Ferenc A. De Szalay
Keyword(s):  
Plant Community ◽  
Community Changes

scholarly journals Mammalian herbivory exacerbates plant community responses to long-term increased soil nutrients in two Alaskan tundra plant communities

2018 ◽  
Vol 4 (2) ◽  
pp. 153-166 ◽  
Author(s):  
Laura Gough ◽  
David R. Johnson
Keyword(s):  
Plant Communities ◽  
Field Experiments ◽  
Meta Analysis ◽  
Top Down ◽  
Betula Nana ◽  
Community Changes ◽  
The Difference ◽  
Meta Analyses ◽  
Alaskan Tundra

The interaction between bottom-up and top-down forces in regulating plant communities is a long-standing topic of interest in ecology. Factorial field experiments examining these factors have been relatively few, but recent meta-analyses provide predictions that can be tested in a range of ecosystems. We tested the prediction that added nutrients would reduce species richness and evenness, while herbivore activity would offset those changes in two tundra plant communities after 11 years. In moist acidic tundra (MAT), herbivores reduced richness more in fertilized plots when mammals were present compared with fertilized plots without herbivores. In dry heath (DH), evenness was significantly reduced in fertilized plots only when herbivores were present, also providing evidence that herbivores enhanced community changes caused by greater nutrient availability. The difference in response between MAT and the meta-analysis predictions appears to be driven by Betula nana, the species that dramatically increased with added nutrients in MAT. Unlike in similar studies and in DH, B. nana is not as palatable as most of the species in the community and is generally avoided by herbivores. These results highlight how the effects of herbivory and nutrients differ across communities and can be affected by the traits of the species present.

Soil microbial community changes as a result of long-term exposure to a natural CO2 vent

2010 ◽  
Vol 74 (9) ◽  
pp. 2697-2716 ◽  
Author(s):  
B.I. Oppermann ◽  
W. Michaelis ◽  
M. Blumenberg ◽  
J. Frerichs ◽  
H.M. Schulz ◽  
...  
Keyword(s):  
Microbial Community ◽  
Soil Microbial Community ◽  
Soil Microbial ◽  
Community Changes

Induced algal community changes by UV radiation and nutrient inputs: A long-term experimental study in Lake La Caldera (Sierra Nevada, Spain)

2009 ◽  
Vol 30 (6) ◽  
pp. 919-922
Author(s):  
J.A. Delgado-Molina ◽  
J.M. Medina-Sánchez ◽  
M. Villar-Argaiz ◽  
F.J. Bullejos-Carrillo ◽  
P. Carrillo
Keyword(s):  
Experimental Study ◽  
Sierra Nevada ◽  
Uv Radiation ◽  
Algal Community ◽  
Nutrient Inputs ◽  
Community Changes

Soil fungal community changes in response to long-term fire cessation and N fertilization in tallgrass prairie

2019 ◽  
Vol 41 ◽  
pp. 45-55 ◽  
Author(s):  
Christine M. Carson ◽  
Ari Jumpponen ◽  
John M. Blair ◽  
Lydia H. Zeglin
Keyword(s):  
Tallgrass Prairie ◽  
Fungal Community ◽  
N Fertilization ◽  
Soil Fungal Community ◽  
Community Changes
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