caa a22 4500 38805185X CHVBK 20180307125055.0 cr unu---uuuuu 161130e199809 xx s 000 0 eng 10.1017/S0959270900001945 doi S0959270900001945 pii (NATIONALLICENCE)cambridge-10.1017/S0959270900001945 Bird diversity and abundance on two different shade coffee plantations in Guatemala [Elektronische Daten] Many studies have examined differences in bird communities between shade and sun coffee plantations but less is known about how different management practices within shade coffee plantations affect bird populations. This study compares diversity and abundance of resident and migrant birds in two shade coffee plantations located in Palajunoj, Quetzaltenango, Guatemala, that differ in their farming practices (e.g. pruning schedules and fertilizer regimes) and, consequently, in vegetation structure. One plantation represents a traditional, polyculture shade system whereas the second represents a more modernized, monoculture shade system. Both plantations supported many resident and migrant birds. Bird abundance and diversity were significantly greater during both wet and dry seasons on the traditional farm, due largely to the vegetation structure resulting from the different management practices. All plantations typically classified as ‘shade coffee' are not equivalent, much of their conservation value coming from the more diverse and structurally complex traditional polycultures rather than from the newer, monocultural systems. Coffee production techniques that affect the structural and floristic diversity of the vegetation (e.g. pruning, application of chemicals) have important consequences for birds. Copyright © Birdlife International 1998 Calvo Lorena University of Missouri-St Louis, Department of Biology, 8001 Natural Bridge Rd., St Louis, MO 63121, U.S.A.. Blake John University of Missouri-St Louis, Department of Biology, 8001 Natural Bridge Rd., St Louis, MO 63121, U.S.A., email: blake@jinx.umsl.edu. Bird Conservation International Cambridge University Press 8/3(1998-09), 297-308 0959-2709 8:3<297 1998 8 BCI https://doi.org/10.1017/S0959270900001945 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0959270900001945 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Calvo Lorena University of Missouri-St Louis, Department of Biology, 8001 Natural Bridge Rd., St Louis, MO 63121, U.S.A NATIONALLICENCE 700 1- Blake John University of Missouri-St Louis, Department of Biology, 8001 Natural Bridge Rd., St Louis, MO 63121, U.S.A., email: blake@jinx.umsl.edu NATIONALLICENCE 773 0- Bird Conservation International Cambridge University Press 8/3(1998-09), 297-308 0959-2709 8:3<297 1998 8 BCI CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge