Tree community patterns in seasonally dry tropical forests in the Cerros de Amotape Cordillera,Tumbes, Peru |
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| Institution: | 1. Parque Nacional Cerros de Amotape, Instituto Nacional de Recursos Naturales, Tumbes, Peru;2. Faculty of Forest Ecology, University of Göttingen, Büsgenweg 5, 37077 Göttingen, Germany;1. University Ouaga I Pr Joseph Ki-Zerbo, UFR/SVT, Laboratory of Plant Biology and Ecology, 03 B.P. 7021 Ouagadougou 03, Burkina Faso;2. Department of Botany, Faculty of Sciences, Laboratory of Botany and Plant Ecology, University of Lomé, P.O. Box. 1515, Lomé, Togo;3. Department of Botany, Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya;4. Institute of Plant Sciences and Resource Conservation (INRES) - Horticultural Sciences, University of Bonn. Auf dem Hügel 6, 53121 Bonn, Germany;1. Instituto de Ecología, Universidad Nacional Autónoma de México, Blvd. Colosio y Sahuaripa s/n, Los Arcos, Hermosillo 83250, Sonora, Mexico;2. Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México-Campus Morelia, Apartado Postal 27-3, Santa María de Guido, Morelia 58090, Michoacán, Mexico;3. Unidad Académica de Estudios Territoriales Oaxaca, Universidad Nacional Autónoma de México, Reforma Centro 68000, Oaxaca, Oaxaca, Mexico;4. Instituto Tecnológico de Sonora, 5 de Febrero 818 Sur, Centro, Ciudad Obregón 85000, Sonora, Mexico;1. Federal Rural University of Pernambuco, Rua Manoel de Medeiros s/n, Dois Irmãos, 52171-900 Recife, PE, Brazil;2. Federal University of Alagoas, Av. Lourival Melo Mota, S/N, Tabuleiro do Martins, 57072-900 Maceió, AL, Brazil;3. University of Cordoba, Campus Univ. de Rabanales, School of Agricultural and Forest Engineering, Ctra. Madrid-Cádiz Km. 396, 14071 Córdoba, Spain;4. Texas A&M AgriLife Research and Extension Center at Stephenville, 1229 N. US Hwy 281, Stephenville, TX 76401, United States |
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| Abstract: | A phytosociological study was conducted in six 1-ha seasonally dry forest samples in selected locations on the Cerros de Amotape Cordillera in north-western Peru. This is the first quantitative study of this vegetation formation in the region, and the findings indicate higher density and richness values than previously thought for the country. The plots varied markedly in species richness from 6 to 25 species, with densities per hectare between 55 and 524 individuals. The most important families were the Bombacaceae, Fabaceae, Bignoniaceae, Combretaceae, Burseraceae and Capparidaceae. At the species level, Caesalpinea glabrata, Tabebuia spp., Terminalia valverdeae, Bursera graveolens, Eriotheca ruizii and Ceiba trichistandra are the most widespread and abundant species. Sorensen similarity indices consistently grouped drier, species poor west facing plots together, while the plots located in more mesic areas either east facing or on the ridges of the Amotape Cordillera were more species rich and similar between them. |
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