Pubblicazione scientifica

Relating trophic resources to community structure: a predictive index of food availability

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità	sostenibilità dell'ecosistema marino
produzione e cattura	attrezzi da pesca modalità di utilizzo delle reti/attrezzi da pesca sistemi di individuazione sottomarini (es. ecoscandaglio, ecc.)

RIASSUNTO

The abundance and the distribution of trophic resources available for consumers influence the productivity and the diversity of natural communities. Nevertheless, assessment of the actual abundance of food items available for individual trophic groups has been constrained by differences in methods and metrics used by various authors. Here we develop an index of food abundance, the framework of which can be adapted for different ecosystems. The relative available food index (RAFI) is computed by considering standard resource conditions of a habitat and the influence of various generalized anthropogenic and natural factors. RAFI was developed using published literature on food abundance and validated by comparison of predictions versus observed trophic resources across various marine sites. RAFI tables here proposed can be applied to a range of marine ecosystems for predictions of the potential abundance of food available for each trophic group, hence permitting exploration of ecological theories by focusing on the deviation from the observed to the expected.

DATA

Data di pubblicazione: 08/02/2017

AUTORI

ZUPO VALERIO
ALEXANDER TIMOTHY J
EDGAR GRAHAM J

ENTE DI AFFERENZA

STAZIONE ZOOLOGICA ANTON DOHRN INTEGRATIVE MARINE ECOLOGY DEPT BENTHIC ECOLOGY CTR PUNTA SAN PIETRO ISCHIA 80077 ITALY
DEPT FISH ECOLOGY & EVOLUTION CTR ECOLOGY EVOLUTION & BIOGEOCHEMISTRY EAWAG SWISS FEDERAL INST AQUATIC SCIENCE & TECH
AQUATIC ECOLOGY & EVOLUTION INST ECOLOGY & EVOLUTION UNIV BERN
INST MARINE & ANTARCTIC STUDIES UNIV TASMANIA GPO BOX 252 49 HOBART TASMANIA 7001 AUSTRALIA

RIVISTA

Royal Society Open Science, 4(2), 160515

IMPACT FACTOR

2,680

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