scholarly journals Changes in plant and arthropod functional traits mediate land use and precipitation effects on grassland production

2022 ◽  
Vol 135 ◽  
pp. 108535
Author(s):  
Xinyu Wang ◽  
Frank Yonghong Li ◽  
Junzhen Zhang ◽  
Jiayue Liu ◽  
Yanan Wang ◽  
...  
Oecologia ◽  
2021 ◽  
Author(s):  
Jörg Bendix ◽  
Nicolay Aguire ◽  
Erwin Beck ◽  
Achim Bräuning ◽  
Roland Brandl ◽  
...  

AbstractTropical mountain ecosystems are threatened by climate and land-use changes. Their diversity and complexity make projections how they respond to environmental changes challenging. A suitable way are trait-based approaches, by distinguishing between response traits that determine the resistance of species to environmental changes and effect traits that are relevant for species' interactions, biotic processes, and ecosystem functions. The combination of those approaches with land surface models (LSM) linking the functional community composition to ecosystem functions provides new ways to project the response of ecosystems to environmental changes. With the interdisciplinary project RESPECT, we propose a research framework that uses a trait-based response-effect-framework (REF) to quantify relationships between abiotic conditions, the diversity of functional traits in communities, and associated biotic processes, informing a biodiversity-LSM. We apply the framework to a megadiverse tropical mountain forest. We use a plot design along an elevation and a land-use gradient to collect data on abiotic drivers, functional traits, and biotic processes. We integrate these data to build the biodiversity-LSM and illustrate how to test the model. REF results show that aboveground biomass production is not directly related to changing climatic conditions, but indirectly through associated changes in functional traits. Herbivory is directly related to changing abiotic conditions. The biodiversity-LSM informed by local functional trait and soil data improved the simulation of biomass production substantially. We conclude that local data, also derived from previous projects (platform Ecuador), are key elements of the research framework. We specify essential datasets to apply this framework to other mountain ecosystems.


2014 ◽  
Vol 23 (10) ◽  
pp. 1073-1084 ◽  
Author(s):  
Tim Newbold ◽  
Jörn P. W. Scharlemann ◽  
Stuart H. M. Butchart ◽  
Çağan H. Şekercioğlu ◽  
Lucas Joppa ◽  
...  

2010 ◽  
Vol 98 (1) ◽  
pp. 17-27 ◽  
Author(s):  
Paula A. Tecco ◽  
Sandra Díaz ◽  
Marcelo Cabido ◽  
Carlos Urcelay

1999 ◽  
Vol 10 (5) ◽  
pp. 651-660 ◽  
Author(s):  
Sandra Díaz ◽  
Marcelo Cabido ◽  
Marcelo Zak ◽  
Eduardo Martínez Carretero ◽  
Julieta Araníbar

2019 ◽  
Vol 691 ◽  
pp. 1005-1015 ◽  
Author(s):  
Kai Chen ◽  
Abdul Razzaque Rajper ◽  
Robert M. Hughes ◽  
John R. Olson ◽  
Huiyu Wei ◽  
...  

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 661 ◽  
Author(s):  
Yuan Zhang ◽  
Xiao-Ning Wang ◽  
Hai-Yu Ding ◽  
Yang Dai ◽  
Sen Ding ◽  
...  

Biological functional traits help to understand specific stressors that are ignored intaxonomic data analysis. A combination of biological functional traits and taxonomic data ishelpful in determining specific stressors which are of significance for fish conservation and riverbasin management. In the current study, the Taizi River was used as a case study to understand therelationships between the taxonomic and functional structure of fish and land use and waterquality, in addition to determining the thresholds of these stressors. The results showed thattaxonomic structure was significantly affected by the proportion of urban land and specificconductivity levels, while functional metrics were influenced by the proportions of farmland andforest. Threshold indicator taxa analysis found that Phoxinus lagowskii, Barbatula barbatula nuda,Odontobutis obscura, and Cobitis granoei had negative threshold responses along the gradients ofurban developments and specific conductivity. There was a significant change in fish taxonomiccomposition when the proportion of urban land exceeded a threshold of 2.6–3.1%, or specificconductivity exceeded a threshold of 369.5–484.5 μS/cm. Three functional features—habitatpreference, tolerance to disturbances, and spawning traits—showed threshold responses to theproportion of farmland and forest. The abundance of sensitive species should be monitored as partof watershed management, as sensitive species exhibit an earlier and stronger response to stressorsthan other functional metrics. Sensitive species had a positive threshold response to the proportionof forest at 80.1%. These species exhibited a negative threshold response to the proportion offarmland at 13.3%. The results of the current study suggest that the taxonomic and functionalstructure of fish assemblages are affected by land use and water quality. These parameters shouldbe integrated into routine monitoring for fish conservation and river basin management in the TaiziRiver. In addition, corresponding measures for improving river habitat and water quality shouldbe implemented according to the thresholds of these parameters.


2013 ◽  
Vol 161 ◽  
pp. 118-127 ◽  
Author(s):  
Kerry A. Brown ◽  
Steig E. Johnson ◽  
Katherine E. Parks ◽  
Sheila M. Holmes ◽  
Tonisoa Ivoandry ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document