Aarhus University Seal / Aarhus Universitets segl

Erik Jeppesen

Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change

Research output: Working paper/Preprint Working paperResearch

Standard

Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change. / Vidal, Nicolas; Yu, Jinlei ; Gutierrez, Maria Florencia; Teixeira-de Mello, Franco; Tavsanoglu, U. Nihan; Çakıroğlu, Idil; He, Hu; Meerhoff, Mariana; Balmana, Sandra Brucet; Liu, Zhengwen; Jeppesen, Erik.

2015.

Research output: Working paper/Preprint Working paperResearch

Harvard

Vidal, N, Yu, J, Gutierrez, MF, Teixeira-de Mello, F, Tavsanoglu, UN, Çakıroğlu, I, He, H, Meerhoff, M, Balmana, SB, Liu, Z & Jeppesen, E 2015 'Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change'.

APA

Vidal, N., Yu, J., Gutierrez, M. F., Teixeira-de Mello, F., Tavsanoglu, U. N., Çakıroğlu, I., He, H., Meerhoff, M., Balmana, S. B., Liu, Z., & Jeppesen, E. (2015). Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change.

CBE

Vidal N, Yu J, Gutierrez MF, Teixeira-de Mello F, Tavsanoglu UN, Çakıroğlu I, He H, Meerhoff M, Balmana SB, Liu Z, Jeppesen E. 2015. Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change.

MLA

Vancouver

Vidal N, Yu J, Gutierrez MF, Teixeira-de Mello F, Tavsanoglu UN, Çakıroğlu I et al. Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change. 2015.

Author

Vidal, Nicolas ; Yu, Jinlei ; Gutierrez, Maria Florencia ; Teixeira-de Mello, Franco ; Tavsanoglu, U. Nihan ; Çakıroğlu, Idil ; He, Hu ; Meerhoff, Mariana ; Balmana, Sandra Brucet ; Liu, Zhengwen ; Jeppesen, Erik. / Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change. 2015.

Bibtex

@techreport{3eab08a2f9804865a32f70f7b706980d,
title = "Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change",
abstract = "A reduction in runoff and higher evaporation rates are expected to occur towards 2050 in arid and semiarid regions of the world, resulting in a reduction of water level and salinization of inland waters. Besides the natural process of catchment erosion, human activities such as irrigation of crops may also increase salinization. Reduced biodiversity in freshwater systems is the most commonly reported effect of salinization, which may have implications for food web structure and likely for ecosystem functioning as well. The objective of the study was to analyze the effects of salinity on community and food web structure in 24 lakes along a wide salinity gradient, from freshwater (0.5 g L-1) to hypersaline lakes (115 g L-1), in a semiarid region in North West China. Fish, zooplankton and macroinvertebrate communities were sampled during July 2014 for determination of taxonomy and size structure and stable isotopes analysis. Based on the stable isotope data we calculated the food web Layman metrics: total area, nitrogen range, carbon range, centroid distance and also trophic position for each community and for the entire food web. We found a significant decline in the number of taxa of all communities analyzed and a reduction of food web complexity with enhanced salinity. Accordingly, the metrics used to describe the entire food web were all negatively related with salinity; however, when examining the food web of each single community the effect was not significant, implying that the species reduction at community level did not affect the trophic diversity. Our results suggest a negative effect of salinity not only on the structure but also on the functioning considering the entire food web of the studied lakes.",
author = "Nicolas Vidal and Jinlei Yu and Gutierrez, {Maria Florencia} and {Teixeira-de Mello}, Franco and Tavsanoglu, {U. Nihan} and Idil {\c C}akıroğlu and Hu He and Mariana Meerhoff and Balmana, {Sandra Brucet} and Zhengwen Liu and Erik Jeppesen",
year = "2015",
language = "English",
type = "WorkingPaper",

}

RIS

TY - UNPB

T1 - Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change

AU - Vidal, Nicolas

AU - Yu, Jinlei

AU - Gutierrez, Maria Florencia

AU - Teixeira-de Mello, Franco

AU - Tavsanoglu, U. Nihan

AU - Çakıroğlu, Idil

AU - He, Hu

AU - Meerhoff, Mariana

AU - Balmana, Sandra Brucet

AU - Liu, Zhengwen

AU - Jeppesen, Erik

PY - 2015

Y1 - 2015

N2 - A reduction in runoff and higher evaporation rates are expected to occur towards 2050 in arid and semiarid regions of the world, resulting in a reduction of water level and salinization of inland waters. Besides the natural process of catchment erosion, human activities such as irrigation of crops may also increase salinization. Reduced biodiversity in freshwater systems is the most commonly reported effect of salinization, which may have implications for food web structure and likely for ecosystem functioning as well. The objective of the study was to analyze the effects of salinity on community and food web structure in 24 lakes along a wide salinity gradient, from freshwater (0.5 g L-1) to hypersaline lakes (115 g L-1), in a semiarid region in North West China. Fish, zooplankton and macroinvertebrate communities were sampled during July 2014 for determination of taxonomy and size structure and stable isotopes analysis. Based on the stable isotope data we calculated the food web Layman metrics: total area, nitrogen range, carbon range, centroid distance and also trophic position for each community and for the entire food web. We found a significant decline in the number of taxa of all communities analyzed and a reduction of food web complexity with enhanced salinity. Accordingly, the metrics used to describe the entire food web were all negatively related with salinity; however, when examining the food web of each single community the effect was not significant, implying that the species reduction at community level did not affect the trophic diversity. Our results suggest a negative effect of salinity not only on the structure but also on the functioning considering the entire food web of the studied lakes.

AB - A reduction in runoff and higher evaporation rates are expected to occur towards 2050 in arid and semiarid regions of the world, resulting in a reduction of water level and salinization of inland waters. Besides the natural process of catchment erosion, human activities such as irrigation of crops may also increase salinization. Reduced biodiversity in freshwater systems is the most commonly reported effect of salinization, which may have implications for food web structure and likely for ecosystem functioning as well. The objective of the study was to analyze the effects of salinity on community and food web structure in 24 lakes along a wide salinity gradient, from freshwater (0.5 g L-1) to hypersaline lakes (115 g L-1), in a semiarid region in North West China. Fish, zooplankton and macroinvertebrate communities were sampled during July 2014 for determination of taxonomy and size structure and stable isotopes analysis. Based on the stable isotope data we calculated the food web Layman metrics: total area, nitrogen range, carbon range, centroid distance and also trophic position for each community and for the entire food web. We found a significant decline in the number of taxa of all communities analyzed and a reduction of food web complexity with enhanced salinity. Accordingly, the metrics used to describe the entire food web were all negatively related with salinity; however, when examining the food web of each single community the effect was not significant, implying that the species reduction at community level did not affect the trophic diversity. Our results suggest a negative effect of salinity not only on the structure but also on the functioning considering the entire food web of the studied lakes.

M3 - Working paper

BT - Salinity shapes food webs in shallow lakes: implications for increasing aridity with climate change

ER -