Seasonal variation of allochthonous and autochthonous energy inputs in an alpine stream

Fenoglio, Stefano; Bo, Tiziano; Cammarata, Massimo; López‐Rodríguez, Manuel Jesús; Figueroa, José Manuel Tierno de

doi:10.4081/jlimnol.2014.1082

Cited by 20 publications

(22 citation statements)

References 34 publications

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“…Similarly, the temperature is too low and water force too erosive to allow for the growth of primary producers, limiting grazers as well. For instance, Fenoglio et al (2014) observed that streams located above the tree line have a reduced input of allochthonous organic matter in autumn, because the organic matter input becomes trapped under ice and snow cover during the entire cold season, reaching streams during late spring, when meltwater collects and transports particles throughout the catchment. In this case, the food web depends on in-stream primary production, and benthic communities are characterized by a greater proportion of scrapers and species with higher trophic plasticity than those of downstream sections (Körner 1998;Fenoglio et al 2014).…”

Section: The Role Of Natural Discontinuitiesmentioning

confidence: 99%

The River Continuum Concept: lessons from the past and perspectives for the future

Doretto

Piano

Larson

2020

Can. J. Fish. Aquat. Sci.

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The River Continuum Concept (RCC) is a milestone in stream ecology because of its comprehensive evaluation of the structure and function of lotic ecosystems. Linking stream physical and geo-morphological attributes with patterns in biodiversity, functional traits, and metabolism dynamics, this theory describes downstream gradients in community composition and ecosystem processes. The aim of this review is to evaluate how the RCC, 40 years from its publication in the Canadian Journal of Fisheries and Aquatic Sciences, has influenced basic and applied research in stream ecology, focusing on the most important contributions and recent developments. This work puts into perspective the historical significance of the RCC in the scientific process and integrates past and recent theories including metacommunity and metaecosystem theories and the river network perspective to predict taxonomic and functional diversity of benthic communities. Thus, this review provides a unifying overview of the historical context of the field for exploring basic and applied ecological questions to the next generation of stream ecologists.

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Section: The Role Of Natural Discontinuitiesmentioning

confidence: 99%

The River Continuum Concept: lessons from the past and perspectives for the future

Doretto

Piano

Larson

2020

Can. J. Fish. Aquat. Sci.

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“…The terrestrial-aquatic linkages are well known, the most plausible cause for this being the research on allochthonous resource use (mainly terrestrial leaves and terrestrial invertebrates) by organisms inhabiting stream food webs (Nakano et al, 1999a;Nakano and Murakami, 2001;Alvim et al, 2015;Fenoglio et al, 2015). In fact, inputs of terrestrial invertebrates from riparian canopy cover may represent an important food resource for stream-dwelling fish species (Kawaguchi and Nakano, 2001;Utz and Hartman, 2007;Syrjänen et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Ontogenetic shifts in terrestrial reliance of stream-dwelling brown trout

Sánchez‐Hernández

Cobo

2016

J Limnol

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“…Apennine rivers (Bottazzi et al, 2011;Fenoglio, Bo, Cammarata, López-Rodríguez, & de Figueroa, 2014). These works suggest that the major forces shaping invertebrate communities seemed to be related to the Alpine climate and especially to snow accumulation and melting with the consequent substantial discharge variations.…”

Section: Seasonal Distribution Of Invertebrates Was Also Identified Inmentioning

confidence: 97%

Assessing the effects of hydrological and chemical stressors on macroinvertebrate community in an Alpine river: The Adige River as a case study

Giulivo

Stella

Capri

et al. 2019

River Research & Apps

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In this study, the combined effects of hydrological and chemical stressors on benthic macroinvertebrates were evaluated in order to explore the response of the biological community to multiple stressors. The Adige River, located in the south‐eastern Alps, was selected as a case study because representative of the situation of a large river in which the variety of stressors present in the Alpine region act simultaneously. As expected, streamflow showed a seasonal pattern, with high flows in the spring–summer period; however, locally, the natural hydrological regime was altered by the presence of hydropower systems, which chiefly affected low flows. Multivariate analysis showed seasonal and spatial patterns in both chemical and hydrological parameters with a clear gradient in the concentration of nitrate, personal care, and pharmaceutical products moving from headwaters to the main stem of the river. The macroinvertebrate community composition was significantly different in summer and winter and between up and downstream sites. Streamflow alteration chiefly due to water use by hydropower affected community composition but not richness or diversity. Gammarus sp., Hirudinea, and Psychomyia sp., were positively correlated with flow variability, increasing their densities in the sites with higher streamflow variability because of hydropeaking. The results obtained in this study show that the composition of the macroinvertebrate community responded to seasonality and to changes in the main stressors along the river and highlights the importance of the spatial and temporal variability of stressors in this Alpine river. Taking into account, this variability will help the decision‐making process for improving basin management.

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Seasonal variation of allochthonous and autochthonous energy inputs in an alpine stream

Abstract: Despite the enormous importance of alpine streams, information about many aspects of their ecology is still insufficient. Alpine lotic systems differ in many environmental

Cited by 20 publications

References 34 publications

The River Continuum Concept: lessons from the past and perspectives for the future

The River Continuum Concept: lessons from the past and perspectives for the future

Ontogenetic shifts in terrestrial reliance of stream-dwelling brown trout

Assessing the effects of hydrological and chemical stressors on macroinvertebrate community in an Alpine river: The Adige River as a case study

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