Winter is coming: Food web structure and seasonality in a subtropical freshwater coastal lake

Ignacio Peralta-Maraver, Anne L. Robertson, Enrico L. Rezende, Aurea Luiza Lemes da Silva, Denise Tonetta, Michelle Lopes, Rafael Schmitt, Nei K. Leite, Alex Nuñer, Mauricio M. Petrucio

Resultado de la investigación: Article

3 Citas (Scopus)

Resumen

Food web studies provide a useful tool to assess the organization and complexity of natural communities. Nevertheless, the seasonal dynamics of food web properties, their environmental correlates, and potential association with community diversity and stability remain poorly studied. Here, we condensed an incomplete 6-year community dataset of a subtropical coastal lake to examine how monthly variation in diversity impacts food web structure over an idealized time series for an averaged year. Phytoplankton, zooplankton, macroinvertebrates, and fish were mostly resolved to species level (n = 120 trophospecies). Our results showed that the seasonal organization of the food web could be aggregated into two clusters of months grouped here as ‘summer’ and ‘winter’. During ‘winter’, the food web decreases in size and complexity, with the number of trophospecies dropping from 106 to 82 (a 22.6% decrease in the number of nodes) and the trophic interactions from 1,049 to 637 between month extremes (a 39.3% drop in the number of links). The observed simplification in food web structure during ‘winter’ suggests that community stability is more vulnerable to the impact of any change during this period.

Idioma originalEnglish
Páginas (desde-hasta)4534-4542
Número de páginas9
PublicaciónEcology and Evolution
Volumen7
N.º13
DOI
EstadoPublished - 1 jul 2017

Huella dactilar

food webs
seasonality
food web
lakes
winter
lake
trophic interaction
macroinvertebrates
macroinvertebrate
time series analysis
zooplankton
phytoplankton
time series
summer
fish

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

Citar esto

Peralta-Maraver, I., Robertson, A. L., Rezende, E. L., Lemes da Silva, A. L., Tonetta, D., Lopes, M., ... Petrucio, M. M. (2017). Winter is coming: Food web structure and seasonality in a subtropical freshwater coastal lake. Ecology and Evolution, 7(13), 4534-4542. https://doi.org/10.1002/ece3.3031
Peralta-Maraver, Ignacio ; Robertson, Anne L. ; Rezende, Enrico L. ; Lemes da Silva, Aurea Luiza ; Tonetta, Denise ; Lopes, Michelle ; Schmitt, Rafael ; Leite, Nei K. ; Nuñer, Alex ; Petrucio, Mauricio M. / Winter is coming : Food web structure and seasonality in a subtropical freshwater coastal lake. En: Ecology and Evolution. 2017 ; Vol. 7, N.º 13. pp. 4534-4542.
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Peralta-Maraver, I, Robertson, AL, Rezende, EL, Lemes da Silva, AL, Tonetta, D, Lopes, M, Schmitt, R, Leite, NK, Nuñer, A & Petrucio, MM 2017, 'Winter is coming: Food web structure and seasonality in a subtropical freshwater coastal lake', Ecology and Evolution, vol. 7, n.º 13, pp. 4534-4542. https://doi.org/10.1002/ece3.3031

Winter is coming : Food web structure and seasonality in a subtropical freshwater coastal lake. / Peralta-Maraver, Ignacio; Robertson, Anne L.; Rezende, Enrico L.; Lemes da Silva, Aurea Luiza; Tonetta, Denise; Lopes, Michelle; Schmitt, Rafael; Leite, Nei K.; Nuñer, Alex; Petrucio, Mauricio M.

En: Ecology and Evolution, Vol. 7, N.º 13, 01.07.2017, p. 4534-4542.

Resultado de la investigación: Article

TY - JOUR

T1 - Winter is coming

T2 - Food web structure and seasonality in a subtropical freshwater coastal lake

AU - Peralta-Maraver, Ignacio

AU - Robertson, Anne L.

AU - Rezende, Enrico L.

AU - Lemes da Silva, Aurea Luiza

AU - Tonetta, Denise

AU - Lopes, Michelle

AU - Schmitt, Rafael

AU - Leite, Nei K.

AU - Nuñer, Alex

AU - Petrucio, Mauricio M.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Food web studies provide a useful tool to assess the organization and complexity of natural communities. Nevertheless, the seasonal dynamics of food web properties, their environmental correlates, and potential association with community diversity and stability remain poorly studied. Here, we condensed an incomplete 6-year community dataset of a subtropical coastal lake to examine how monthly variation in diversity impacts food web structure over an idealized time series for an averaged year. Phytoplankton, zooplankton, macroinvertebrates, and fish were mostly resolved to species level (n = 120 trophospecies). Our results showed that the seasonal organization of the food web could be aggregated into two clusters of months grouped here as ‘summer’ and ‘winter’. During ‘winter’, the food web decreases in size and complexity, with the number of trophospecies dropping from 106 to 82 (a 22.6% decrease in the number of nodes) and the trophic interactions from 1,049 to 637 between month extremes (a 39.3% drop in the number of links). The observed simplification in food web structure during ‘winter’ suggests that community stability is more vulnerable to the impact of any change during this period.

AB - Food web studies provide a useful tool to assess the organization and complexity of natural communities. Nevertheless, the seasonal dynamics of food web properties, their environmental correlates, and potential association with community diversity and stability remain poorly studied. Here, we condensed an incomplete 6-year community dataset of a subtropical coastal lake to examine how monthly variation in diversity impacts food web structure over an idealized time series for an averaged year. Phytoplankton, zooplankton, macroinvertebrates, and fish were mostly resolved to species level (n = 120 trophospecies). Our results showed that the seasonal organization of the food web could be aggregated into two clusters of months grouped here as ‘summer’ and ‘winter’. During ‘winter’, the food web decreases in size and complexity, with the number of trophospecies dropping from 106 to 82 (a 22.6% decrease in the number of nodes) and the trophic interactions from 1,049 to 637 between month extremes (a 39.3% drop in the number of links). The observed simplification in food web structure during ‘winter’ suggests that community stability is more vulnerable to the impact of any change during this period.

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KW - community structure

KW - top-down regulation

KW - trophic interactions

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U2 - 10.1002/ece3.3031

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VL - 7

SP - 4534

EP - 4542

JO - Ecology and Evolution

JF - Ecology and Evolution

SN - 2045-7758

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Peralta-Maraver I, Robertson AL, Rezende EL, Lemes da Silva AL, Tonetta D, Lopes M y otros. Winter is coming: Food web structure and seasonality in a subtropical freshwater coastal lake. Ecology and Evolution. 2017 jul 1;7(13):4534-4542. https://doi.org/10.1002/ece3.3031