Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
SPATIAL AND TEMPORAL ABUNDANCE PATTERNS OF RUDDY QUAIL-DOVES (GEOTRYGON MONTANA) NEAR MANAUS, BRAZIL
Autore:
STOUFFER PC; BIERREGAARD RO;
Indirizzi:
SE LOUISIANA UNIV,DEPT BIOL SCI HAMMOND LA 70401 SMITHSONIAN INST,BIODIVERSITY PROGRAMS WASHINGTON DC 20560
Titolo Testata:
The Condor
fascicolo: 4, volume: 95, anno: 1993,
pagine: 896 - 903
SICI:
0010-5422(1993)95:4<896:SATAPO>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
COSTA-RICA; TROPICAL WET; BIRDS; UNDERSTORY; HABITATS; FORESTS;
Keywords:
AMAZONIAN BRAZIL; GEOTRYGON MONTANA; MIGRATION; RAINFALL; RUDDY QUAIL-DOVE; SEASONAL MOVEMENTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
44
Recensione:
Indirizzi per estratti:
Citazione:
P.C. Stouffer e R.O. Bierregaard, "SPATIAL AND TEMPORAL ABUNDANCE PATTERNS OF RUDDY QUAIL-DOVES (GEOTRYGON MONTANA) NEAR MANAUS, BRAZIL", The Condor, 95(4), 1993, pp. 896-903

Abstract

We analyzed patterns of abundance of Ruddy Quail-Doves (Geotrygon montana) based on 12 years of mist-net data (457 captures) from terra firme forest near Manaus in central Amazonian Brazil. Unlike most understory birds at the study site, G. montana varied greatly in abundance. Quail-doves disappeared for months and then reappeared, usually during the wet season. In some months they became one of the most frequently netted birds. Quail-doves avoided isolated forest fragments of one ha,although abundance did not differ among fragments of 10 ha, 100 ha, and continuous forest. Peak abundance varied among years, as did the timing of peak abundance. In general, the annual pattern of quail-dove abundance was correlated with the annual rainfall pattern. Considering all 12 years of data, however, quail-dove abundance during a given three-month period was not correlated with rainfall during that period, but with rainfall in the same period in the previous year. No quail-doves were recaptured more than a few weeks part; thus individual birds did not return to the same site from year to year. Since quail-doves feed mainly on fallen fruit, these results suggest that they may range over wide areas to exploit regional differences in fruit production.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 17:00:43