Trophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem

Abstract Trophic variation in food web structure occurs among and within ecosystems. The magnitude of variation, however, differs from system to system. In ephemeral pond ecosystems, temporal dynamics are relatively more important than in many systems given that hydroperiod is the ultimate factor de...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Tatenda Dalu, Ryan J. Wasserman, P. William Froneman, Olaf L. F. Weyl
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cc43aa66cf7a4208a2c0023efbc85e3a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cc43aa66cf7a4208a2c0023efbc85e3a
record_format	dspace
spelling	oai:doaj.org-article:cc43aa66cf7a4208a2c0023efbc85e3a2021-12-02T15:05:42ZTrophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem10.1038/s41598-017-08026-62045-2322https://doaj.org/article/cc43aa66cf7a4208a2c0023efbc85e3a2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08026-6https://doaj.org/toc/2045-2322Abstract Trophic variation in food web structure occurs among and within ecosystems. The magnitude of variation, however, differs from system to system. In ephemeral pond ecosystems, temporal dynamics are relatively more important than in many systems given that hydroperiod is the ultimate factor determining the presence of an aquatic state. Here, using stable isotopes we tested for changes in trophic chain length and shape over time in these dynamic aquatic ecosystems. We found that lower and intermediate trophic level structure increased over time. We discuss these findings within the context of temporal environmental stability. The dynamic nature of these ephemeral systems seems to be conducive to greater levels of intermediate and lower trophic level diversity, with omnivorous traits likely being advantageous.Tatenda DaluRyan J. WassermanP. William FronemanOlaf L. F. WeylNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tatenda Dalu Ryan J. Wasserman P. William Froneman Olaf L. F. Weyl Trophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem
description	Abstract Trophic variation in food web structure occurs among and within ecosystems. The magnitude of variation, however, differs from system to system. In ephemeral pond ecosystems, temporal dynamics are relatively more important than in many systems given that hydroperiod is the ultimate factor determining the presence of an aquatic state. Here, using stable isotopes we tested for changes in trophic chain length and shape over time in these dynamic aquatic ecosystems. We found that lower and intermediate trophic level structure increased over time. We discuss these findings within the context of temporal environmental stability. The dynamic nature of these ephemeral systems seems to be conducive to greater levels of intermediate and lower trophic level diversity, with omnivorous traits likely being advantageous.
format	article
author	Tatenda Dalu Ryan J. Wasserman P. William Froneman Olaf L. F. Weyl
author_facet	Tatenda Dalu Ryan J. Wasserman P. William Froneman Olaf L. F. Weyl
author_sort	Tatenda Dalu
title	Trophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem
title_short	Trophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem
title_full	Trophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem
title_fullStr	Trophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem
title_full_unstemmed	Trophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem
title_sort	trophic isotopic carbon variation increases with pond’s hydroperiod: evidence from an austral ephemeral ecosystem
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/cc43aa66cf7a4208a2c0023efbc85e3a
work_keys_str_mv	AT tatendadalu trophicisotopiccarbonvariationincreaseswithpondshydroperiodevidencefromanaustralephemeralecosystem AT ryanjwasserman trophicisotopiccarbonvariationincreaseswithpondshydroperiodevidencefromanaustralephemeralecosystem AT pwilliamfroneman trophicisotopiccarbonvariationincreaseswithpondshydroperiodevidencefromanaustralephemeralecosystem AT olaflfweyl trophicisotopiccarbonvariationincreaseswithpondshydroperiodevidencefromanaustralephemeralecosystem
_version_	1718388733288382464

Trophic isotopic carbon variation increases with pond’s hydroperiod: Evidence from an Austral ephemeral ecosystem

Ejemplares similares