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Titolo:
Dipteran standing stock biomass and effects of aquatic bird predation at aconstructed wetland
Autore:
Ashley, MC; Robinson, JA; Oring, LW; Vinyard, GA;
Indirizzi:
Univ Nevada, Ecol Evolut & Conservat Biol Program, Reno, NV 89557 USA UnivNevada Reno NV USA 89557 Conservat Biol Program, Reno, NV 89557 USA Univ Nevada, Dept Environm & Resource Sci, Reno, NV 89557 USA Univ NevadaReno NV USA 89557 Environm & Resource Sci, Reno, NV 89557 USA Univ Nevada, Dept Biol, Reno, NV 89557 USA Univ Nevada Reno NV USA 89557Univ Nevada, Dept Biol, Reno, NV 89557 USA
Titolo Testata:
WETLANDS
fascicolo: 1, volume: 20, anno: 2000,
pagine: 84 - 90
SICI:
0277-5212(200003)20:1<84:DSSBAE>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
MIGRATORY SHOREBIRDS; PREY POPULATIONS; LIFE-HISTORY; FRESH-WATER; CHIRONOMIDAE; MACROINVERTEBRATES; CALIFORNIA; RESPONSES; COMMUNITY; HABITAT;
Keywords:
constructed wetland; diptera; aquatic birds; chironomid; American avocet; Wilson's phalarope; predation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Ashley, MC Univ Nevada, Ecol Evolut & Conservat Biol Program, Reno, NV 89557 USA Univ Nevada Reno NV USA 89557 Biol Program, Reno, NV 89557 USA
Citazione:
M.C. Ashley et al., "Dipteran standing stock biomass and effects of aquatic bird predation at aconstructed wetland", WETLANDS, 20(1), 2000, pp. 84-90

Abstract

We studied the relationship between benthic invertebrates and aquatic birds at a newly constructed wetland using an avian exclosure experiment combined with counts of aquatic bird use. We measured the standing stock biomass of benthic dipterans both inside and outside exclosures. Chironomidae was the most abundant dipteran family present. Maximum chironomid standing stockbiomass per pond ranged from 3.62 to 27.82 g/m(2) and was comparable to that found in a number of natural systems. We monitored the abundance of ten aquatic birds species. Abundances of three aquatic bird species [American avocet (Recurvirostra americana), Wilson's phalarope (Phalaropus tricolor), and cinnamon teal (Anas cyanoptera)] were significantly correlated with chironomid and total dipteran densities. Our experiment, however found no significant effect of predation on invertebrate densities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 04:21:25