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Titolo:
Behaviour and ecology of birds in tropical rain forest canopies
Autore:
Winkler, H; Preleuthner, M;
Indirizzi:
Austrian Acad Sci, Konrad Lorenz Inst Comparat Ethol, A-1160 Vienna, Austria Austrian Acad Sci Vienna Austria A-1160 at Ethol, A-1160 Vienna, Austria
Titolo Testata:
PLANT ECOLOGY
fascicolo: 1-2, volume: 153, anno: 2001,
pagine: 193 - 202
SICI:
1385-0237(200104)153:1-2<193:BAEOBI>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
RESOURCE AVAILABILITY; COMMUNITY DYNAMICS; SEED DISPERSAL; DIVERSITY; SEASONALITY; PATTERNS; HABITAT; PANAMA; ENERGETICS; COMPLEXITY;
Keywords:
behavioural flexibility; ecomorphology; foraging; frugivory; habitat;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
82
Recensione:
Indirizzi per estratti:
Indirizzo: Winkler, H Austrian Acad Sci, Konrad Lorenz Inst Comparat Ethol, Savoyenstr 1A, A-1160 Vienna, Austria Austrian Acad Sci Savoyenstr 1A Vienna Austria A-1160 Austria
Citazione:
H. Winkler e M. Preleuthner, "Behaviour and ecology of birds in tropical rain forest canopies", PLANT ECOL, 153(1-2), 2001, pp. 193-202

Abstract

The canopy of rain forests exhibits several distinct features that determine avian adaptations. Light intensity and colour, wind, and temperature arethe most important components of the physical environment. Tree architecture poses many challenges for the evolution of avian morphological features,and resource availability varies greatly. The canopy is easily accessible for birds that are equipped to travel over considerable distances. Given these conditions, high behavioural flexibility, and adaptations in behaviour and morphology related to a nomadic life-style, should prevail among canopybirds. The easy access for certain groups of birds also has consequences for the historical processes that shape canopy bird communities. Birds may contribute greatly to forest dynamics and composition, mainly due to their role as seed dispersers. We elaborate on these points with behavioural, morphological, and ecological data collected at our Neotropical study site in southern Venezuela (Surumoni Canopy Crane Project). We discuss how behaviourand morphological features reflect the ecological demands in the canopy. We contrast the specific behavioural and ecological characteristics of canopy birds with those of species found in the other tiers of the rain forest. It is pointed out that much of our knowledge is biased towards the Neotropics, and that better knowledge of the larger canopy species is needed for conservation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 09:33:34