DOCSLIB.ORG

Nota Técnica - Technical Note

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Nota Técnica - Technical Note Mastozoología Neotropical / J. Neotrop. Mammal.; 9(1):85-89 ISSN 0327-9383 ©SAREM, 2002 Versión on-line ISSN 1666-0536 NOTA TÉCNICA - TECHNICAL NOTE THE EFFECTIVENESS OF PITFALL TRAPS FOR SAMPLING SMALL MAMMALS IN THE AMAZON BASIN Christine L. Hice and David J. Schmidly Department of Biological Sciences, Texas Tech University, Lubbock, TX , USA 79409. Phone: (806)742-2121; Fax (806)742-2138; <[email protected]>; <[email protected]> ABSTRACT. Mammal communities in the Amazon Basin are diverse and should be as- sessed with a variety of trap types. Pitfall traps are infrequently used in surveys of Neotro- pical mammals, but capture a different subset of the small mammal community than do traditional trap types. Pitfall traps captured species generally thought to be rare, including Monodelphis adusta and Scolomys melanops, at a higher proportion than traditional terres- trial traps. Moreover, pitfall traps captured more very young individuals of common species. This trapping technique is most effective during the rainy season, with virtually no captures recorded during the dry season, and should be used in conjunction with other trap types to fully assess mammal communities. RESUMEN. La comunidad de mamíferos en la Cuenca Amazónica es diversa y debería ser evaluada con una variedad de tipos de trampas. Las trampas de caída no son usadas frecuentemente en estudios de mamíferos neotropicales, pese a que capturan un subgrupo diferente de la comunidad de pequeños mamíferos del que capturan las trampas tradiciona- les. Las trampas de caída capturan especies generalmente consideradas raras, incluyendo Monodelphis adusta y Scolomys melanops, en una proporción más grande que las trampas terrestres convencionales. Además, las trampas de caída capturan más individuos juveniles que las trampas tradicionales. Esta técnica de trampeo es más efectiva durante la estación de lluvias, con prácticamente ninguna captura durante la época seca, y debería ser usada en conjunto con otros tipos de trampas para evaluar en detalle las comunidades de mamí- feros. Key words: pitfall traps, community assessment, trap comparison, Amazon Basin. Palabras clave: trampas de caída, evaluación de comunidades, comparación de trampas, Cuenca Amazónica. INTRODUCTION often results in an inaccurate assessment of the community (Edwards, 1952; Sealander and Lowland, Neotropical, rainforests harbor a di- James, 1958; MacLeod and Lethiecq, 1963; verse and structurally complex small mammal Wiener and Smith, 1972; Nellis et al., 1974; community. Components of this community Pizzimenti, 1979; Szaro et al., 1988; McComb inhabit a variety of niches ranging from semi- et al., 1991; Laurance, 1992; Kalko and fossorial to arboreal. This diversity of life his- Handley, 1993; Woodman et al., 1996). This tories makes it difficult to accurately survey bias can be corrected by using trapping tech- the mammalian fauna of an area (Voss and niques that adequately assess each component Emmons, 1996). Moreover, failure to use a of the small mammal community. variety of trap types and trapping techniques Pitfall traps have not been used extensively 86 Mastozoología Neotropical / J. Neotrop. Mammal.; 9(1):85-89 Mastozoología Neotropical, 2002 to capture small mammals in Neotropical habi- 2945 mm per year, with a slightly drier season from tats. However, in North America pitfall traps June to September (Johnson, 1976). The elevation have been successfully used to capture semi- of the station ranges from 110 m to 180 m above fossorial mammals, such as shrews (Prince, sea level. Thirteen pitfall traplines were established in con- 1941; Moore, 1949; Peterson and Symansky, junction with other capture methods in three types 1963; Brown, 1967; Wharton, 1968; Buckner, of primary forest and five ages of secondary growth 1969; Hoffman et al., 1969; Pucek, 1969; Layne forest to assess small mammal communities. Pitfall and Shoop, 1971; Briese and Smith, 1974; traplines consisted of eleven 20 L buckets buried Mengak and Guynn, 1987; Pagels, 1987; flush to the ground and placed 5 m apart under a McComb et al., 1991; Handley and Kalko, continuous 50 m drift fence made of plastic held 1993; Kalko and Handley, 1993). Moreover, it erect by stakes (Voss and Emmons, 1996). Holes has been demonstrated that pitfall traps sample were drilled in the bottom of each bucket to allow a different subset of the small mammal com- accumulated rainwater to drain. Instead, the holes allowed groundwater to enter. Each trapline took munity than do other, more traditional, trap- about 2 days to construct: one day to dig holes and ping methods (MacLeod and Lethiecq, 1963; bury the buckets and one day to put up the drift Briese and Smith, 1974; Nellis et al., 1974; fence. Materials to build the trapline were readily Williams and Braun, 1983; Mengak and Guynn, available locally with the exception of a staple gun 1987; Szaro et al., 1988; McComb et al., 1991; and staples to secure the plastic fence to the stakes. Laurance, 1992; Handley and Kalko, 1993; Traps were assessed for 10 consecutive nights and Kalko and Handley, 1993). checked each morning at dawn. No bait was used Whereas shrews are not a component of small nor was liquid intentionally introduced into the mammal communities in the Amazon Basin, it buckets (Animal Care and Use Committee, 1998). Specimens collected are deposited at the Museum has been suggested that other semi-fossorial of Texas Tech University, Lubbock, Texas, and the mammals, such as short-tailed opossums Museo de Historia Natural de la Universidad (Monodelphis), may be captured in the same Nacional Mayor de San Marcos, Lima, Peru. Pre- manner (Voss and Emmons, 1996). No studies served tissues (frozen) include heart, kidney, liver, have been conducted in Amazonia to deter- spleen, lung, and muscle, and are deposited at the mine if pitfall traps capture a different subset Museum of Texas Tech University. of the small mammal community than do other trap types. If they do, the inclusion of pitfall RESULTS AND DISCUSSION traps in the trapping regime could provide a more accurate assessment of the community. In total, 100,637 trap nights were compiled Herein, we summarize the results of the first yielding 1,030 captures and a capture rate of extensive use of pitfall traps in Amazonia. 0.97%. Of these, 59 individuals representing Detailed comparisons with other trap types will 12 mammalian species were captured in 2,530 be presented elsewhere. pitfall trap nights (Table 1). The overall pitfall capture rate was 2.33%, although it varied MATERIALS AND METHODS monthly (Table 2). Seasonal effects on cap- ture rate were pronounced, with one capture Small mammals were collected by one of us (CLH) (0.14%) during the 4-month dry season (June during 18 months (August 1997 to December 1998) to September) and up to a 4.55% monthly near Iquitos, Peru, for an ecological research project. capture rate during the rainy season (average Research was conducted at the Estación Biológica rainy season capture rate = 3.16%). The mass Allpahuayo (S3°58'; W73°25'), a 3000-hectare field of mammals captured in pitfall traps varied station operated by the Instituto de Investigaciones de la Amazonía Peruana (IIAP), 25 km south of from 2 to 93 g. However, only 6 individuals Iquitos, Department of Loreto, in northeastern Peru. with a mass >50 g were captured in pitfall The climate is tropical with a mean annual tempera- traps. ture of 26°C; the highest average monthly tempera- Pitfall traps demonstrated a higher capture ture (31°C) occurs in November and the lowest rate (2.29%) than did other trap types, includ- (22°C) in July (Salati, 1985). Average rainfall is ing snap-type Victor rat traps (1.08%), Toma- NOTA TÉCNICA - TECHNICAL NOTE 87 Table 1 List of number of individuals of each species captured in pitfall traps from August 1997 to December 1998. Species Number Captured Marmosops noctivagus 4 Marmosops bishopi 3 Monodelphis adusta 5 Neacomys spinosus 2 Neacomys tenuipes 15 Oecomys bicolor 5 Oecomys roberti 1 Oligoryzomys microtus 7 Oryzomys megacephalus 1 Oryzomys yunganus 5 Scolomys melanops 11 Total 59 Table 2 Number of trapnights, captures recorded, and capture rate for each month during the study period. Month Trapnights Captures Capture Rate (%) August-1997 22 1 4.55 September-1997 55 0 0 October-1997 0 0 na November-1997 550 19 4.32 December-1997 220 7 3.18 January-1998 0 0 na February-1998 0 0 na March-1998 330 9 2.73 April-1998 0 0 na May-1998 220 10 4.55 June-1998 121 0 0 July-1998 330 0 0 August-1998 99 0 0 September-1998 110 0 0 October-1998 319 7 3.13 November-1998 275 6 1.09 Total 2530 59 2.33 88 Mastozoología Neotropical / J. Neotrop. Mammal.; 9(1):85-89 Mastozoología Neotropical, 2002 hawk live-traps (0.92%), and Sherman live- permission to conduct research at the biological station; traps (0.45%). However, pitfall traps were to- thanks also to Víctor Pacheco for translating the abstract to Spanish. INRENA supplied necessary collecting per- tally ineffective during the dry season. A con- mits (#21-98-INRENA-DGANPFS-DCFS). This work was current depression in overall capture rate was supported in part by research grant AI-39800 from the not observed for other trap types. However, National Institutes of Health. genera (such as Neacomys) usually captured in pitfall traps and other trap types were less fre- LITERATURE CITED quently captured in non-pitfall traps during the dry season. This suggests that small species ANIMAL CARE AND USE COMMITTEE. 1998. taken more frequently in pitfall traps may ex- Guidelines for the capture, handling, and care of mammals as approved by the American Society of perience lower abundance or lower activity Mammalogists. Journal of Mammalogy, 79:1416- level during these months. In 1998, the rainy 1431.
Load more

Recommended publications
  • The Chocó-Darién Conservation Corridor
    July 4, 2011 The Chocó-Darién Conservation Corridor A Project Design Note for Validation to Climate, Community, and Biodiversity (CCB) Standards (2nd Edition). CCB Project Design Document – July 4, 2011 Executive Summary Colombia is home to over 10% of the world’s plant and animal species despite covering just 0.7% of the planet’s surface, and has more registered species of birds and amphibians than any other country in the world. Along Colombia’s northwest border with Panama lies the Darién region, one of the most diverse ecosystems of the American tropics, a recognized biodiversity hotspot, and home to two UNESCO Natural World Heritage sites. The spectacular rainforests of the Darien shelter populations of endangered species such as the jaguar, spider monkey, wild dog, and peregrine falcon, as well as numerous rare species that exist nowhere else on the planet. The Darién is also home to a diverse group of Afro-Colombian, indigenous, and mestizo communities who depend on these natural resources. On August 1, 2005, the Council of Afro-Colombian Communities of the Tolo River Basin (COCOMASUR) was awarded collective land title to over 13,465 hectares of rainforest in the Serranía del Darién in the municipality of Acandí, Chocó in recognition of their traditional lifestyles and longstanding presence in the region. If they are to preserve the forests and their traditional way of life, these communities must overcome considerable challenges. During 2001- 2010 alone, over 10% of the natural forest cover of the surrounding region was converted to pasture for cattle ranching or cleared to support unsustainable agricultural practices.
    [Show full text]
  • Supporting Files
    Table S1. Summary of Special Emissions Report Scenarios (SERs) to which we fit climate models for extant mammalian species. Mean Annual Temperature Standard Scenario year (˚C) Deviation Standard Error Present 4.447 15.850 0.057 B1_low 2050s 5.941 15.540 0.056 B1 2050s 6.926 15.420 0.056 A1b 2050s 7.602 15.336 0.056 A2 2050s 8.674 15.163 0.055 A1b 2080s 7.390 15.444 0.056 A2 2080s 9.196 15.198 0.055 A2_top 2080s 11.225 14.721 0.053 Table S2. List of mammalian taxa included and excluded from the species distribution models.
    [Show full text]
  • The Neotropical Region Sensu the Areas of Endemism of Terrestrial Mammals
    Australian Systematic Botany, 2017, 30, 470–484 ©CSIRO 2017 doi:10.1071/SB16053_AC Supplementary material The Neotropical region sensu the areas of endemism of terrestrial mammals Elkin Alexi Noguera-UrbanoA,B,C,D and Tania EscalanteB APosgrado en Ciencias Biológicas, Unidad de Posgrado, Edificio A primer piso, Circuito de Posgrados, Ciudad Universitaria, Universidad Nacional Autónoma de México (UNAM), 04510 Mexico City, Mexico. BGrupo de Investigación en Biogeografía de la Conservación, Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), 04510 Mexico City, Mexico. CGrupo de Investigación de Ecología Evolutiva, Departamento de Biología, Universidad de Nariño, Ciudadela Universitaria Torobajo, 1175-1176 Nariño, Colombia. DCorresponding author. Email: [email protected] Page 1 of 18 Australian Systematic Botany, 2017, 30, 470–484 ©CSIRO 2017 doi:10.1071/SB16053_AC Table S1. List of taxa processed Number Taxon Number Taxon 1 Abrawayaomys ruschii 55 Akodon montensis 2 Abrocoma 56 Akodon mystax 3 Abrocoma bennettii 57 Akodon neocenus 4 Abrocoma boliviensis 58 Akodon oenos 5 Abrocoma budini 59 Akodon orophilus 6 Abrocoma cinerea 60 Akodon paranaensis 7 Abrocoma famatina 61 Akodon pervalens 8 Abrocoma shistacea 62 Akodon philipmyersi 9 Abrocoma uspallata 63 Akodon reigi 10 Abrocoma vaccarum 64 Akodon sanctipaulensis 11 Abrocomidae 65 Akodon serrensis 12 Abrothrix 66 Akodon siberiae 13 Abrothrix andinus 67 Akodon simulator 14 Abrothrix hershkovitzi 68 Akodon spegazzinii 15 Abrothrix illuteus
    [Show full text]
  • AMERICAN MUSEUM NOVITATES Published by Number 139 Txe AMERICAN MUSE1UM of NATURAL HISTORY October 20, 1924 New York City
    AMERICAN MUSEUM NOVITATES Published by Number 139 TxE AMERICAN MUSE1UM OF NATURAL HISTORY October 20, 1924 New York City 59.9(86.6) PRELIMINARY REPORT ON ECUADOREAN MAMMALS. NO. 6. BY H. E. ANTHONY the following paper is the sixth' in a series of preliminary reports based upon extensive field work in Ecuador. Well over 5,000 specimens have been taken and a complete report on the entire known mammalian fauna of Ecuador is in process of preparation, a task requiring consider- able time for its consummation because of the difficulties in, securing adequate collections in the field and the present state of confusion exist- ing in the taxonomy and nomenclature of such groups as Oryzomys, Akodon, etc. Especial efforts are being made to secure topotypes of species described from Ecuador. Among the many interesting specimens collected by Mr. G. H. H. Tate in eastern Ecuador during the early part of 1924 is a good series of spiny mice. Five of this series are typical Neacomys, but there are six specimens of a very dark mouse fully as spiny as Neacomys but with a skull quite unlike that of any mouse I have previously seen. For this dark spiny mouse I propose the following new genus. Scolomys, new genus (Cricetidae) GENOTYPE.-Scolomys melanops, new species. GIENERAL CHARACTERS.-Quite similar superficially to Neacomys but with very distinct cranial differences. DESCRIPTION.-A small mouse with pelage composed, as in Neacomys, of flat- tened spines interspersed with unmodified hairs; ears ofmoderate size; tail short, less than half of total length; fore and hind feet like those of Neacomys, thumb vestigial, with short broad nail.
    [Show full text]
  • Mammals of the Natural National Park Selva De Florencia, Caldas, Colombia
    THERYA, 2021, Vol. 12(3):461-475 DOI:10.12933/therya-21-1101 ISSN 2007-3364 Mammals of the Natural National Park Selva de Florencia, Caldas, Colombia HÉCTOR E. RAMÍREZ-CHAVES1*, DANIELA VELÁSQUEZ-GUARÍN2, JUAN D. OCAMPO-VELÁSQUEZ3, INGRITH YULIANY MejÍA-FONTECHA2, AMILVIA ACOSTA4, JAVIER E. COLMENARES-PINZÓN5, JOHN HAROLD CASTAÑO6, AND NÉSTOR RONCANCIO DUQUE7 1 Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Caldas, y Centro de Museos, Museo de Historia Natural, Universidad de Caldas, Manizales, Colombia. Calle 65 No 26-10, Manizales. Caldas, Colombia. Email: [email protected] (HER-C). 2 Grupo de Investigación GEBIOME, Facultad de Ciencias Exactas y Naturales y Museo de Historia Natural, Universidad de Cal- das, Manizales, Colombia. Calle 65 No 26-10, Manizales. Caldas, Colombia. Email: [email protected] (DV-G) and [email protected] (IYM-F). 3 Centro de Museos, Museo de Historia Natural, Universidad de Caldas, Manizales, Colombia. Calle 65 No 26-10, Manizales. Caldas, Colombia. Email: [email protected] (JDO-V) 4 Profesional PNN Selva de Florencia, Parques Nacionales Naturales de Colombia. Carrera 9 No 2-30, Corregimiento de Florencia, Samaná. Caldas, Colombia. Email: [email protected] (AA). 5Grupo de Estudios en Biodiversidad, Escuela de Biología, Universidad Industrial de Santander, Bucaramanga, Santander, Colom- bia. Carrera 27 No 9, Bucaramanga. Santander, Colombia. Email: [email protected] (JEC-P). 6Grupo de investigación en Biología de la Conservación y Biotecnología, Corporación Universitaria de Santa Rosa de Cabal. Santa Rosa de Cabal, Colombia. Email: [email protected] (JHC). 7 Asesor en Biología de la Conservación de la Dirección Territorial Andes Occidentales de Parques Nacionales Naturales.
    [Show full text]
  • Diversidad Y Endemismo De Los Mamíferos Del Perú
    Rev. peru. biol. 16(1): 005- 032 (Agosto 2009) © Facultad de Ciencias Biológicas UNMSM DiversidadVersión de los Online mamíferos ISSN 1727-9933 del Perú Diversidad y endemismo de los mamíferos del Perú Diversity and endemism of Peruvian mammals Víctor Pacheco1, 2, Richard Cadenillas1, Edith Salas1, Carlos Tello1 y Horacio Zeballos3 1 Museo de Historia Natural, Uni- versidad Nacional Mayor de San Resumen Marcos, Apartado 14-0434, Lima- 14, Perú. Email Víctor Pacheco: Se presenta una lista comentada de los mamíferos terrestres, acuáticos y marinos nativos de Perú, incluy- [email protected] endo sus nombres comunes, la distribución por ecorregiones y los estados de amenaza según la legislación 2 Facultad de Ciencias Biológicas, nacional vigente y algunos organismos internacionales. Se documenta 508 especies nativas, en 13 órdenes, Universidad Nacional Mayor de 50 familias y 218 géneros; resultando el Perú como el tercer país con la mayor diversidad de especies en el San Marcos. Nuevo Mundo después de Brasil y México, así como quinto en el mundo. Esta diversidad incluye a 40 didelfi- 3 Centro de Estudios y Promoción del Desarrollo, DESCO, Málaga morfos, 2 paucituberculados, 1 sirenio, 6 cingulados, 7 pilosos, 39 primates, 162 roedores, 1 lagomorfo, 2 Grenet 678, Umacollo, Arequipa. soricomorfos, 165 quirópteros, 34 carnívoros, 2 perisodáctilos y 47 cetartiodáctilos. Los roedores y murciélagos (327 especies) representan casi las dos terceras partes de la diversidad (64%). Cinco géneros y 65 especies (12,8%) son endémicos para Perú, siendo la mayoría de ellos roedores (45 especies, 69,2%). La mayoría de especies endémicas se encuentra restringida a las Yungas de la vertiente oriental de los Andes (39 especies, 60%) seguida de lejos por la Selva Baja (14 especies, 21,5%).
    [Show full text]
  • SUPPLEMENTARY MATERIAL ONLINE Table S1. Measurements
    SUPPLEMENTARY MATERIAL ONLINE Table S1. Measurements of the Neacomys species used in the morphometric analysis (in mm): condylo-incisive length (CIL), zygomatic breadth (ZB), braincase breadth (BB), least interorbital breadth (IOC), length of rostrum (RL), length of the nasal bones (NL), breadth of rostrum (RW-1), orbital fossa length (OI), length of upper diastema (DL), crown length of maxillary toothrow (MTRL); length of incisive foramen (IFL), mastoid breadth (MB), basioccipital length (BOL), mesopterygoid fossa width (MPFW), breadth of zygomatic plate (ZPL), cranial depth (CP). Missing data are represented by NA. RW- Specimen Region Species CIL ZB BB IOC RL NL OI DL MTRL IFL MB BOL MPFW ZPL CP 1 JBM1386 Ecuador auriventer 20.46 12.09 11.1 4.32 7.07 8.75 4.27 7.33 6.15 2.93 3.16 10.21 3.22 1.66 1.89 8.64 MECN5420 Ecuador auriventer 18.95 11.43 10.78 4.27 6.75 7.92 4.03 6.51 NA 2.78 3.02 9.95 3.08 1.2 1.84 7.57 MECN5423 Ecuador auriventer 19.65 11.87 11.02 4.36 7.07 8.64 4.36 6.78 NA 2.82 3.27 9.22 3.08 1.61 1.72 7.79 MEPN11846 Ecuador auriventer 19.31 11.51 11.02 4.55 6.68 8.11 4.15 6.82 5.45 2.76 2.88 10 3.23 1.53 1.9 8.32 MEPN11854 Ecuador auriventer 19.34 11.62 11.16 4.81 6.78 8.72 4.17 6.83 5.85 2.84 2.52 10.13 2.98 1.3 1.74 7.92 MEPN12078 Ecuador auriventer 18.48 11.17 10.7 4.38 6.71 8.04 3.96 6.65 5.44 2.74 2.95 10.17 2.96 1.4 1.72 8.18 MEPN12079 Ecuador auriventer 18.06 11.22 10.81 4.52 6.46 7.88 3.9 6.25 5.23 2.82 2.76 9.9 2.63 1.54 1.68 8.52 MEPN12081 Ecuador auriventer 19.99 11.83 10.95 4.58 7.07 7.95 4.14 7.11 6.11 2.83 3.2
    [Show full text]
  • Redalyc.RIQUEZA, ENDEMISMO Y CONSERVACIÓN DE LOS
    Mastozoología Neotropical ISSN: 0327-9383 [email protected] Sociedad Argentina para el Estudio de los Mamíferos Argentina Solari, Sergio; Muñoz-Saba, Yaneth; Rodríguez-Mahecha, José V.; Defler, Thomas R.; Ramírez- Chaves, Héctor E.; Trujillo, Fernando RIQUEZA, ENDEMISMO Y CONSERVACIÓN DE LOS MAMÍFEROS DE COLOMBIA Mastozoología Neotropical, vol. 20, núm. 2, julio-diciembre, 2013, pp. 301-365 Sociedad Argentina para el Estudio de los Mamíferos Tucumán, Argentina Disponible en: http://www.redalyc.org/articulo.oa?id=45729294008 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Mastozoología Neotropical, 20(2):301-365, Mendoza, 2013 Copyright ©SAREM, 2013 Versión impresa ISSN 0327-9383 http://www.sarem.org.ar Versión on-line ISSN 1666-0536 Artículo RIQUEZA, ENDEMISMO Y CONSERVACIÓN DE LOS MAMÍFEROS DE COLOMBIA Sergio Solari1, Yaneth Muñoz-Saba2, José V. Rodríguez-Mahecha3, Thomas R. Defler4, Héctor E. Ramírez-Chaves5 y Fernando Trujillo6 1 Instituto de Biología, Grupo Mastozoología & Colección Teriológica, Universidad de Antioquia, Medellín, Colombia. [Correspondencia: <[email protected]>]. 2 Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá D.C., Colombia. 3 Director Científico, Conservación Internacional Colombia, Bogotá D.C., Colombia. 4 Departamento de Biología, Universidad Nacional de Colombia, Bogotá, D.C., Colombia. 5 School of Biological Sciences, University of Queensland, Queensland, Australia. 6 Director Científico, Fundación Omacha, Bogotá D.C., Colombia. RESUMEN. Se actualiza la diversidad de especies de mamíferos de Colombia con base en una nueva revisión de especímenes en las mayores colecciones del país y el extranjero y la compilación de cambios taxonómicos recientes que involucran especies presentes en el país.
    [Show full text]
  • Redalyc.Diversidad Y Endemismo De Los Mamíferos Del Perú
    Revista Peruana de Biología ISSN: 1561-0837 [email protected] Universidad Nacional Mayor de San Marcos Perú Pacheco, Víctor; Cadenillas, Richard; Salas, Edith; Tello, Carlos; Zeballos, Horacio Diversidad y endemismo de los mamíferos del Perú Revista Peruana de Biología, vol. 16, núm. 1, agosto, 2009, pp. 5-32 Universidad Nacional Mayor de San Marcos Lima, Perú Disponible en: http://www.redalyc.org/articulo.oa?id=195014940002 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Rev. peru. biol. 16(1): 005- 032 (Agosto 2009) © Facultad de Ciencias Biológicas UNMSM DiversidadVersión de los Online mamíferos ISSN 1727-9933 del Perú Diversidad y endemismo de los mamíferos del Perú Diversity and endemism of Peruvian mammals Víctor Pacheco1, 2, Richard Cadenillas1, Edith Salas1, Carlos Tello1 y Horacio Zeballos3 1 Museo de Historia Natural, Uni- versidad Nacional Mayor de San Resumen Marcos, Apartado 14-0434, Lima- 14, Perú. Email Víctor Pacheco: Se presenta una lista comentada de los mamíferos terrestres, acuáticos y marinos nativos de Perú, incluy- [email protected] endo sus nombres comunes, la distribución por ecorregiones y los estados de amenaza según la legislación 2 Facultad de Ciencias Biológicas, nacional vigente y algunos organismos internacionales. Se documenta 508 especies nativas, en 13 órdenes, Universidad Nacional Mayor de 50 familias y 218 géneros; resultando el Perú como el tercer país con la mayor diversidad de especies en el San Marcos.
    [Show full text]
  • Diversidad Taxonómica, Funcional Y Filogenética De Mamíferos En Colombia
    DIVERSIDAD TAXONÓMICA, FUNCIONAL Y FILOGENÉTICA DE MAMÍFEROS EN COLOMBIA Ramón Esteban Granados Peña Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias, Departamento de Ciencias Forestales Medellín, Colombia 2013 II DIVERSIDAD TAXONÓMICA, FUNCIONAL Y FILOGENÉTICA DE MAMÍFEROS EN COLOMBIA DIVERSIDAD TAXONÓMICA, FUNCIONAL Y FILOGENÉTICA DE MAMÍFEROS EN COLOMBIA Ramón Esteban Granados Peña Trabajo de investigación presentado como requisito parcial para optar al título de: Magister en Bosques y Conservación Ambiental Director: Doctor en Ciencias (c), José F. González Maya Codirector: Doctor en Ciencias, Néstor Mancera Rodríguez Línea de Investigación: Biología de la Conservación Grupo de Investigación: ECOFAUNA Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias, Departamento de Ciencias Forestales Medellín, Colombia 2013 Agradecimientos Agradecemos a la Universidad Nacional de Colombia, Sede Medellín, The Sierra to Sea Institute, ProCAT Colombia y The Mikelberg Family Foundation por su apoyo y financiación durante todo el proceso de este trabajo. A los aportes y colaboraciones realizadas por Andres Arias Alzate y Gustavo Manjarres G., Gustavo Manjarres Pinzón. Contenido IV Resumen Este documento presenta una análisis de la diversidad funcional de mamíferos a dos escalas, la primera correspondiente al Departamento del Magdalena y la segunda a nivel nacional, con el propósito de cuantificar la diversidad de mamíferos desde un enfoque multidimensional, donde no sólo se tiene en cuenta la medida clásica de la
    [Show full text]
  • A Global-Scale Evaluation of Mammalian Exposure and Vulnerability to Anthropogenic Climate Change
    A Global-Scale Evaluation of Mammalian Exposure and Vulnerability to Anthropogenic Climate Change Tanya L. Graham A Thesis in The Department of Geography, Planning and Environment Presented in Partial Fulfillment of the Requirements for the Degree of Master of Science (Geography, Urban and Environmental Studies) at Concordia University Montreal, Quebec, Canada March 2018 © Tanya L. Graham, 2018 Abstract A Global-Scale Evaluation of Mammalian Exposure and Vulnerability to Anthropogenic Climate Change Tanya L. Graham There is considerable evidence demonstrating that anthropogenic climate change is impacting species living in the wild. The vulnerability of a given species to such change may be understood as a combination of the magnitude of climate change to which the species is exposed, the sensitivity of the species to changes in climate, and the capacity of the species to adapt to climatic change. I used species distributions and estimates of expected changes in local temperatures per teratonne of carbon emissions to assess the exposure of terrestrial mammal species to human-induced climate change. I evaluated species vulnerability to climate change by combining expected local temperature changes with species conservation status, using the latter as a proxy for species sensitivity and adaptive capacity to climate change. I also performed a global-scale analysis to identify hotspots of mammalian vulnerability to climate change using expected temperature changes, species richness and average species threat level for each km2 across the globe. The average expected change in local annual average temperature for terrestrial mammal species is 1.85 oC/TtC. Highest temperature changes are expected for species living in high northern latitudes, while smaller changes are expected for species living in tropical locations.
    [Show full text]
  • Mammalian Community Structure in Lowland, Tropical Peru, As Determined by Removal Trapping
    Zoological Journal o]the Linnean Society (1995), 113: 1-20. With 6 figures Mammalian community structure in lowland, tropical Peru, as determined by removal trapping NEAL WOODMAN, NORMAN A. SLADE, ROBERT M. TIMM Museum of Natural History and Department of Systematics & Ecology, The University of Kansas, Lawrence, Kansas 66045-2454, U.S.A. AND CHERYL A. SCHMIDT Department of Biological Sciences, Texas Tech University, Lubbock, Texas 79409-3131, USA. Received June 1993, revised manuscript accepted for publication March 1994. Amazonian lowland rain forests are complex three-dimensional formations consisting of a variety of arboreal and terrestrial habitats. The small mammal faunas, particularly of arboreal habitats, are poorly studied, and field research generally has been limited to a few faunal inventories. We sampled the terrestrial and arboreal small mammal fauna in two floodplain forest study zones at Reserva Cuzco Amazonico, southeastern Peru, by removal trapping for 12 consecutive days in dry (June-July 1989) and rainy seasons (January-February 1990). Nineteen taxa of marsupials and rodents were captured. Small mammals were more abundant in the rainy season than in the dry season, but the relative proportions of the 11 most abundant species remained stable between seasons and study zones. Most species showed no decline in capture rates through the 12-day period, indicating that either population densities were high or animals were quite mobile. The small mammal fauna exhibited strong vertical stratification; among the 11 most abundant species, four exhibited strong biases toward terrestrial and five toward above-ground captures. The distinct arboreal small mammal community is grossly underrepresented if traps are placed only at ground level.
    [Show full text]