Reciprocal Role of Salamanders in Aquatic Energy Flow Pathways

Many species of salamanders (newts and salamanders per se) have a pivotal role in energy flow pathways as they include individuals functioning as prey, competitors, and predators. Here, I synthesize historic and contemporary research on the reciprocal ecological role of salamanders as predators and...

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Main Author: Javier Sánchez-Hernández
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/12/1/32
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author Javier Sánchez-Hernández
author_facet Javier Sánchez-Hernández
author_sort Javier Sánchez-Hernández
collection DOAJ
description Many species of salamanders (newts and salamanders per se) have a pivotal role in energy flow pathways as they include individuals functioning as prey, competitors, and predators. Here, I synthesize historic and contemporary research on the reciprocal ecological role of salamanders as predators and prey in aquatic systems. Salamanders are a keystone in ecosystem functioning through a combination of top−down control, energy transfer, nutrient cycling processes, and carbon retention. The aquatic developmental stages of salamanders are able to feed on a wide variety of invertebrate prey captured close to the bottom as well as on small conspecifics (cannibalism) or other sympatric species, but can also consume terrestrial invertebrates on the water surface. This capacity to consume allochthonous resources (terrestrial invertebrates) highlights the key role of salamanders as couplers of terrestrial and aquatic ecosystems (i.e., aquatic−terrestrial linkages). Salamanders are also an important food resource for other vertebrates such as fish, snakes, and mammals, covering the energy demands of these species at higher trophic levels. This study emphasizes the ecological significance of salamanders in aquatic systems as central players in energy flow pathways, enabling energy mobility among trophic levels (i.e., vertical energy flow) and between freshwater and terrestrial habitats (i.e., lateral energy flow).
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spelling doaj.art-cb391bc1299d489eb75b5d6ac1b4eefe2022-12-22T04:28:40ZengMDPI AGDiversity1424-28182020-01-011213210.3390/d12010032d12010032Reciprocal Role of Salamanders in Aquatic Energy Flow PathwaysJavier Sánchez-Hernández0Área de Biodiversidad y Conservación, Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, SpainMany species of salamanders (newts and salamanders per se) have a pivotal role in energy flow pathways as they include individuals functioning as prey, competitors, and predators. Here, I synthesize historic and contemporary research on the reciprocal ecological role of salamanders as predators and prey in aquatic systems. Salamanders are a keystone in ecosystem functioning through a combination of top−down control, energy transfer, nutrient cycling processes, and carbon retention. The aquatic developmental stages of salamanders are able to feed on a wide variety of invertebrate prey captured close to the bottom as well as on small conspecifics (cannibalism) or other sympatric species, but can also consume terrestrial invertebrates on the water surface. This capacity to consume allochthonous resources (terrestrial invertebrates) highlights the key role of salamanders as couplers of terrestrial and aquatic ecosystems (i.e., aquatic−terrestrial linkages). Salamanders are also an important food resource for other vertebrates such as fish, snakes, and mammals, covering the energy demands of these species at higher trophic levels. This study emphasizes the ecological significance of salamanders in aquatic systems as central players in energy flow pathways, enabling energy mobility among trophic levels (i.e., vertical energy flow) and between freshwater and terrestrial habitats (i.e., lateral energy flow).https://www.mdpi.com/1424-2818/12/1/32amphibiaenergy flowhabitat couplingpredator–prey interactionstop–down controltrophic cascadestrophic ecologyurodela
spellingShingle Javier Sánchez-Hernández
Reciprocal Role of Salamanders in Aquatic Energy Flow Pathways
Diversity
amphibia
energy flow
habitat coupling
predator–prey interactions
top–down control
trophic cascades
trophic ecology
urodela
title Reciprocal Role of Salamanders in Aquatic Energy Flow Pathways
title_full Reciprocal Role of Salamanders in Aquatic Energy Flow Pathways
title_fullStr Reciprocal Role of Salamanders in Aquatic Energy Flow Pathways
title_full_unstemmed Reciprocal Role of Salamanders in Aquatic Energy Flow Pathways
title_short Reciprocal Role of Salamanders in Aquatic Energy Flow Pathways
title_sort reciprocal role of salamanders in aquatic energy flow pathways
topic amphibia
energy flow
habitat coupling
predator–prey interactions
top–down control
trophic cascades
trophic ecology
urodela
url https://www.mdpi.com/1424-2818/12/1/32
work_keys_str_mv AT javiersanchezhernandez reciprocalroleofsalamandersinaquaticenergyflowpathways