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Titolo:
Effects of group-selection opening size on breeding bird habitat use in a bottomland forest
Autore:
Moorman, CE; Guynn, DC;
Indirizzi:
Clemson Univ, Dept Forest Resources, Clemson, SC 29634 USA Clemson Univ Clemson SC USA 29634 Forest Resources, Clemson, SC 29634 USA
Titolo Testata:
ECOLOGICAL APPLICATIONS
fascicolo: 6, volume: 11, anno: 2001,
pagine: 1680 - 1691
SICI:
1051-0761(200112)11:6<1680:EOGOSO>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
UNDERSTORY BIRDS; CLEAR-CUT; HARDWOOD FORESTS; TROPICAL FOREST; WOOD THRUSHES; NORTH-AMERICA; COMMUNITIES; ABUNDANCE; FRAGMENTATION; REGENERATION;
Keywords:
bottomland forest; breeding birds; gap size; gap vegetation; group selection; habitat use; neotropical migrant; silviculture; South Carolina; succession;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
56
Recensione:
Indirizzi per estratti:
Indirizzo: Moorman, CE N Carolina State Univ, Dept Forestry, Box 8003, Raleigh, NC 27695 USA N Carolina State Univ Box 8003 Raleigh NC USA 27695 27695 USA
Citazione:
C.E. Moorman e D.C. Guynn, "Effects of group-selection opening size on breeding bird habitat use in a bottomland forest", ECOL APPL, 11(6), 2001, pp. 1680-1691

Abstract

An increase in timber removals from southern bottomland forests of the United States has been predicted, warranting investigations of the effects of silvicultural alternatives on avian breeding habitat. We;studied the effects of creating group-selection openings (man-made canopy gaps) of various sizes on breeding bird habitat use in a bottomland hardwood forest in the Upper Coastal Plain of South Carolina, USA. We used spot mapping and mist netting to estimate bird abundance at 0.06-, 0.13-. 0.26-, and 0.5-ha gap's andat uncut control areas during the 1996, 1997, and 1998 breeding seasons (IMay-1 August). There were significant increases in the number of species mapped (P = 0.0001) and netted (P = 0.0001) with successive increases in gapsize. The greatest number of total spot-map detections (P = 0.0002) and mist net captures (P = 0.0004) also occurred in and around the large gaps. These patterns were the result of increased use of larger gaps by field-edge species, primarily Brown-headed Cowbird (Molothrus ater), Common Yellow-throat (Geothlypis trichas), and Indigo Bunting (Passerina cyanea), and some forest-edge species, such as White-eyed Vireo (Vireo griseus) and Northern Parula (Parula americana). Conversely, Acadian Flycatcher (Empidonax virescens) Was less abundant in and adjacent to gaps. Because there were few differences in vegetation among gaps of different sizes, it is likely that birdsthat were detected more frequently in and adjacent to larger gaps selectedthose gaps based on other factors correlated with size. Creation of 0.5-hagroup-selection openings in southern bottomland forests should provide breeding habitat for some field-edge species in gaps and habitat for forest-interior species and canopy-dwelling forest-edge species between gaps. provided that sufficient mature forest is maintained.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 07:47:38