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 original | English |
|---|---|
| Páginas (desde-hasta) | 4534-4542 |
| Número de páginas | 9 |
| Publicación | Ecology and Evolution |
| Volumen | 7 |
| N.º | 13 |
| DOI | |
| Estado | Published - 1 jul 2017 |
Huella dactilar
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Ecology
- Nature and Landscape Conservation
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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.
KW - aquatic systems
KW - community structure
KW - top-down regulation
KW - trophic interactions
UR - http://www.scopus.com/inward/record.url?scp=85019567343&partnerID=8YFLogxK
U2 - 10.1002/ece3.3031
DO - 10.1002/ece3.3031
M3 - Article
AN - SCOPUS:85019567343
VL - 7
SP - 4534
EP - 4542
JO - Ecology and Evolution
JF - Ecology and Evolution
SN - 2045-7758
IS - 13
ER -