Browsing by Autor "Kathia Rivero"

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Diagnóstico biológico preliminar y prioridades de investigación en el área protegida municipal Parabanó
(2004) Kathia Rivero; Damián I. Rumiz; Juan Carlos Catari; Huáscar Azurduy; Oswaldo Maillard; L. Acosta; Miguel Angel Aponte; Karina Osinaga; Grimaldo Soto; Humberto Saavedra
Differential habitat use by two sympatric brocket deer species (<i>Mazama americana</i>and <i>M. gouazoubira</i>) in a seasonal Chiquitano forest of Bolivia
(De Gruyter, 2005) Kathia Rivero; Damián I. Rumiz; Andrew Taber
A study of habitat use of two sympatric brocket deer species was conducted by recording dung and tracks along 40 km trails cleared through four vegetation types in the chaco-cerrado border of Santa Cruz Department, Bolivia. Deer signs of each species were characterized and discriminated by size and shape and counted for each habitat (transitional chaco forest, chiquitano riverine forest, chiquitano moist piedmont forest and cerrado open woodland) by walking 180-km in the wet season and 90-km in the dry season. The four habitats showed differences in vegetation structure and plant composition (canopy height and cover, horizontal visibility, and fruit resources) as well as frequency of signs for each brocket deer species. Although red brocket signs were less abundant than gray brocket signs, for both species and in every habitat we found consistently more tracks than dung in the wet season, and more dung than tracks in the dry season. Dung and track counts indicated that gray brockets were common and widespread in the four habitats, while reds occurred mostly in piedmont and riverine forest. Daily activity hours recorded by camera trapping showed that red brockets were active mostly from sunset until sunrise (6 pm to 6 am: 87% of 32 events) and gray brockets mostly in the morning (5 am to 10 am: 66% of 87 events). Patterns of habitat use and daily activity suggest that these sympatric deer species segregate in space and time. A comparative study of their diet, plus more behavioral data from sympatric and allopatric situations are needed to better understand the way in which deer may partition resources.
Estimating brocket deer (Mazama gouazoubira and M. americana) abundance by dung pellet counts and other indices in seasonal Chiquitano forest habitats of Santa Cruz, Bolivia
(Springer Science+Business Media, 2004) Kathia Rivero; Damián I. Rumiz; Andrew Taber
First records of three species of Lasiurus Gray, 1831 (Chiroptera, Vespertilionidae) in Bolivia
(Pensoft Publishers, 2024) Luis H. Acosta Salvatierra; José L. Poma-Urey; Kathrin Barboza-Marquez; Kathia Rivero; José Ochoa G.; Jorge Salazar‐Bravo
Insectivorous bats of the family Vespertilionidae have been grouped into eight tribes, with Lasiurini showing an extensive distribution in South America. In Bolivia, three species of lasiurine bats have been reported: Lasiurus blossevillii (Lesson & Garnot, 1826), L. ega (Gervais, 1856), and L. villosissimus (&Eacute;. Geoffroy St.-Hilaire, 1806). The morphological analyses of specimens of this genus deposited in Bolivian scienti&#64257;c collections and comparisons with specimens from other countries (including holotypes) prompt us to report the &#64257;rst records of three species: Lasiurus atratus Handley 1996, L. castaneus Handley 1960, and L. egregius (Peters, 1870) in Bolivia, expanding their known geographic ranges to the southwestern part of the Amazon.
Historia natural del murciélago cara de perro del Mato Grosso Neoplatymops mattogrossensis (Vieira, 1942) (Chiroptera: Molossidae) en Bolivia
(2023) Luis H. Acosta Salvatierra; Kathia Rivero; José L. Poma-Urey; Yannet Condori; Martika A. Valdez Montaño; Kathrin Barboza-Marquez; Julia Schulze; Elena Melgares
El murciélago cara de perro del Mato Grosso (Neoplatymops mattogrossensis), tiene hábitos muy pobremente conocidos. Presentamos datos sobre su historia natural (estructura poblacional, temperatura y humedad relativa en el interior y exterior de los refugios, dieta en base al análisis de muestras fecales) obtenidos en refugios de los predios de la Reserva Privada de Patrimonio Natural San Sebastián. Los refugios encontrados estuvieron habitados entre 1-10 individuos y en más del 70% de los refugios existe un solo macho adulto escrotal. Las temperaturas dentro de los refugios tienden a ser más estables que en el exterior, pero no así la humedad relativa. La dieta, esta está compuesta por Insecta, Arachnida, con los coleópteros como los más frecuentes seguido por Lepidoptera y Hemiptera.
Taxonomic revision and additional comments of some bats (Mammalia, Chiroptera) reported from Bolivia, with an updated checklist based on voucher material with verified identities
(Pensoft Publishers, 2023) José L. Poma-Urey; Luis H. Acosta S.; Kathia Rivero; Marisol Hidalgo-Cossio; Erika Hingst‐Zaher; Juliana Gualda-Barros; Beatriz Dybas da Natividade; Kathrin Barboza-Marquez; Héctor E. Ramírez-Cháves; Jorge Salazar‐Bravo
We review the taxonomic identities of museum specimens of three bat species previously reported from Bolivia. We comment on some erroneously reported taxa, or taxa either not represented by voucher materials or based on insufficient data (including acoustic detections) to verify their taxonomic affinities. As result of this review, the list of bat species known to occur in Bolivia is updated to eight families and 133 species, unlike the nine families and 146 species of previous lists. Some recommendations for future research and a brief historical revision of bat inventories in the country are included.