Perú, Medio Putumayo-Algodón (2024)

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Corine Vriesendorp, Nigel Pitman, Giussepe Gagliardi, Diana Alvira, Isabel Jorahua, mario escobedo

The Tapiche-Blanco region epitomizes Loreto’s extraordinary landscape diversity. It harbors large expanses of wetlands and peatland forests, white-sand forests, and hyperdiverse upland forests, and these are drained by a variety of black, white, and clearwater streams. Located within the global epicenter of amphibian, mammal, and bird diversity, and highlighted by recent maps as possessing the largest aboveground carbon stocks in Peru, the region has maintained continuous forest and a high conservation value despite a long history of unregulated logging, hunting, and fishing. The region has long been a conservation priority of the national and regional governments, and the high plant and animal diversity we recorded during the inventory make it clear that it deserves the designation. We recorded 962 plant species and 741 vertebrate species during the inventory. Dozens of the species we recorded are distributed patchily in Amazonian Peru because they specialize on ‘islands’ of poor-soil vegetation. Based on our fieldwork and on maps of diversity in these groups, we estimate that the total number of vascular plant and vertebrate species in the Tapiche-Blanco region is 3,878–4,478.

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High habitat heterogeneity emblematic of the Napo-Amazon-Putumayo interfluvium and currently lacking strict protection in Loreto; a distinctive flora growing on upland terraces formed by ancient deposition plains dating to the lower Pleistocene (~2 million years old) in the northern headwaters of the Yaguas; a poor-soil flora growing on terraces dating to the upper Pleistocene (~120,000 years old); intact floodplain forests with few anthropogenic impacts; plant communities associated with oxbow lakes and streams in the lower Yaguas watershed; extensive dwarf forests (chamizales ) associated with peat deposits in the Yaguas floodplain and lacking quartz sand soils; a potentially enormous underground carbon stock in peat swamps; headwater forests that regulate hydrological cycles in the two watersheds and reduce erosion; healthy, well-conserved populations of useful plants, including tamshi (Heteropsis spp.) irapay (Lepidocaryum tenue ), shapaja (Attalea maripa, A. insignis, A. cf. microcarpa ), espintana (Oxandra major ) and ungurahui (Oenocarpus bataua ); healthy populations of the ornamental cycads Zamia ulei and Zamia aff. hymenophyllidia (Zamiaceae), listed in CITES Appendix II; healthy populations of important timber species, including tornillo (Cedrelinga cateniformis ), marupá (Simarouba amara ), catahua (Hura crepitans ), pashaco (Parkia nitida), lupuna (Ceiba pentandra ), machimango (Eschweilera spp.), charapillo (Hymenaea cf. oblongifolia ), azúcar huayo (Hymenaea courbaril ), leche huayo (Lacmellea peruviana ), quinilla or balata (Manilkara bidentata ) and polvillo (Qualea spp.); reduced populations of important timber species such as tropical cedar (Cedrela odorata ), which will recuperate with proper management; at least seven new records for the Peruvian flora and 10 plant species which appear to be new to science.

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Revista Peruana de Biología

Sesenta y cuatro nuevos registros para la flora del Perú a través de inventarios biológicos rápidos en la Amazonía peruana

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Durante el período 2000 – 2016, se llevaron a cabo 15 inventarios biológicos en áreas remotas en el pie de monte andino y el llano amazónico del Perú. En estos inventarios, 27 botánicos colectaron un total de 9397 especímenes de plantas vasculares fértiles. Hasta finales del 2017, más de la mitad de estos especímenes se han identificado a nivel de especie, de los cuales 64 especies y 2 géneros (Dicorynia y Monopteryx) representan nuevos registros para la flora del Perú. Si esta tasa de novedades se mantiene, el número de registros nuevos en el material de los inventarios podría aumentar, lo cual nos indica que aún queda mucho por descubrir en la flora andino-amazónica del Perú.

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MINISTERIO DEL AMBIENTE SERVICIO NACIONAL DE ÁREAS NATURALES PROTEGIDAS POR EL ESTADO PARQUE NACIONAL YAGUAS

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Vegetación y Flora del Interfluvio de los ríos Tapiche y Blanco, Loreto, Perú

Tony J. Mori, Luis Torres Montenegro, Nigel Pitman, Corine Vriesendorp

Un gran paisaje continuo con bosques inundables y de tierra firme muy diversos con baja perturbación, pieza clave en la conectividad con áreas protegidas adyacentes y con otros varillales y turberas en Loreto; la mayor extensión de varillales y chamizales de arena blanca del Perú; uno de los lugares de mayor concentración de stock de carbono en los árboles en todo el Perú; una extensión de turberas poco conocidas con un stock importante de carbono en el suelo; pantanos herbáceos-arbustivos tipo ‘sabana’ de condiciones extremas de humedad y sequía; hábitats frágiles y extremos con especies preferentes de estas condiciones, como Mauritia carana, Platycarpum sp. nov., Euterpe catinga y Pachira brevipes; una gran diversidad de árboles con aptitud forestal y palmeras utilizadas por los pobladores locales sin planes de manejo, y que requieren un programa de recuperación.

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Vegetación y Flora del interfluvio de los ríos Tapiche-Blanco

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Perú: Ere-Campuya-Algodón: Anfibios y Reptiles

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Perú, Medio Putumayo-Algodón (2024)
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