Browsing by Autor "Lizette Siles"

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A new species of<i>Micronycteris</i>(Chiroptera: Phyllostomidae) from Bolivia
(Oxford University Press, 2013) Lizette Siles; Daniel M. Brooks; Hugo Aranibar; Teresa Tarifa; Rodriguez-Jimenez J. M; José M. Rojas; R. J. Baker
Although significant work has been done to define species relationships within the Neotropical genus Micronycteris, the group has yet to be fully resolved. In Bolivia Micronycteris is represented by 4 species: M. hirsuta, M. megalotis, M. minuta, and M. sanborni
First record and detailed description of calls from the Bolivian bamboo rat Dactylomys boliviensis in Carrasco National Park, Bolivia
(2025) Mauricio Ocampo; Rene Carpio Real; Jorge Espinoza-Echeverría; Lizette Siles
Introduction: Sound communication among conspecific mammals is quite common and facilitates various behavioral interactions. The Bolivian bamboo rat, Dactylomys boliviensis, like many other mammals, uses this system to mark its territory and attract females. Methods: We occasionally recorded the complete song of this species within Carrasco National Park, very close to the type locality, representing the first record of the species for the park. We compared our record with other calls from further northwest, near the border with Peru, and found significant differences in timing and structure. Results: The call consists of a strong staccato, is divided in 2 parts, and the dominant frequency is 1.16 kHz. Our results reveal considerable variation in the song between individuals. Discussion: The variation found may be influenced by factors such as individual size, soundscape limitations, changes in song structure due to distance, or even species differentiation. This record presents an opportunity for the scientific community to further investigate the causes of this call variation.
First record of Peropteryx pallidoptera (Chiroptera: Emballonuridae) in Bolivia
(2021) Lizette Siles; Marisol Hidalgo-Cossio; Alejandra Amusquivar-Calustro; Teodoro Camacho; Gabriela Huayta-Sarzuri
The genus Peropteryx contains five species distributed in the Neotropical region. Three of these species occur in Bolivia (P. macrotis, P. kappleri, and P. leucoptera). The recently described Peropteryx pallidoptera is distributed in the Amazonian lowland forests of Ecuador, Perú, Brazil, and Colombia. We report the first record of P. pallidoptera in Bolivia. On November 22, 2016, we observed a bat colony in a ground cavity, in aforest patch located in the rural community of Isinuta in Chapare Province (Cochabamba Department). The area is classified as southwestern Amazonian forests ecoregion. We collected one specimen and confirmed the identification of the species with skull measurements. We observed all external and cranial diagnostic characters of P. pallidoptera in our specimen. Also, the external and cranial measurements are withinthe range reported for the species. Our specimen extends the known distribution of P. pallidoptera 1,420 km to the southeast from the nearest point in Perú, and it is the southernmost locality for the species. The habitat type and roost where we collected P. pallidoptera is consistent with the descriptions in the literature. Our new record in Bolivia is within the potential wide distribution in the Amazon region predicted in thespecies description. However, it creates a large gap in northern Bolivia, northwestern Brazil, and southeastern Perú where more records should be expected in the future.
First record of the rare bat Gardnerycteris koepckeae (Gardner &amp; Patton, 1972) (Chiroptera, Phyllostomidae) in Bolivia
(Pensoft Publishers, 2021) Lizette Siles; Robert B. Wallace
The phyllostomid bat Gardnerycteris koepckeae (Gardner &amp; Patton, 1972) was considered endemic to Peru and restrict to only two localities, until it was recently collected in a new locality in Colombia. Now we report G. koepckeae for the first time in Bolivia, based on a specimen collected in a well-preserved montane forest inside the Parque Nacional y &Aacute;rea Natural de Manejo Integrado Madidi. The site of capture is at 2280 m, which is the highest elevational record for the species. Gardnerycteris koepckeae is a rare species restricted to a fragile ecosystem threatened by mining and other changes in land use.
GEOGRAPHIC AND ECOLOGICAL AMPLITUDE IN THE NECTARIVOROUS BAT ANOURA FISTULATA (PYHLLOSTOMIDAE: GLOSSOPHAGINAE)
(2014) Hugo Mantilla-Meluk; Lizette Siles; Luís F. Aguirre
The wide range of feeding habits among phyllostomid bats has resulted in the selection of unique and contrasting morphological attributes. It has been suggested that nectarivorous bat species co-evolve with the plants they use as primary source of food, and changes in morphology and behavior in the bat, are in some way directed by changes in morphology and phenological cycles of the plants. The nectarivorous bat Anoura fistulata (Pyhllostomidae: Glossophaginae) has the longest tongue in proportion to body size among mammals; feature that apparently allows the species to take nectar from flowers with long corollas, some of them typical of highland ecosystems. In spite of this unique morphological adaptation, little is known on the ecological requirements of the species. Herein, Geographic Information System-based analyses and niche modeling techniques were applied to investigate the geographic and ecological niche breath of A. fistulata. We also introduce the first Bolivian record of the species collected at Hernando Siles, Department of Chuquisaca (20°10’0.0’’ S, 64°15’0.00’’ W, at 1,524 m), which represents a remarkable extension in the distribution of the species of more than 7°. Our analyses revealed that A. fistulata occurs in contrasting ecosystems, from Andean montane and pre-montane moist forest in Western Ecuador and Central Colombia, up to arid and semiarid environments in southern Colombia and Bolivia . Anoura fistulata occurs across a wide elevational range between 1,175 and 2,510 m, which is well represented along the geologic unit of the Batholith of Ecuador. A constriction of this elevational belt along the Peruvian Punas and Yungas was suggested as a natural barrier for the establishment of A. fistulata. The Peruvian Punas and Yungas isolate A. fistulata of Bolivia from records in the northern range of the distribution of the species.
Lista actualizada y comentada de los mamíferos de Bolivia.
(European Organization for Nuclear Research, 2019) Luis F. Aguirre; Teresa Tarifa; Robert B. Wallace; Nuria Bernal H.; Lizette Siles
(Uploaded by Plazi for the Bat Literature Project) We present an update to the list of mammals known to occur in Bolivia. We incorporate and describe recent taxonomic changes and new records for the country made since the last list published in 2003. New records and taxonomic changes were considered only if they had verifiable evidence. To date, the list of mammals for the country includes 406 native species, belonging to 11 orders, 46 families and 196 genera, representing an increase of 51 species over the 2003 list. Among those added, 14 were new to science and have type localities in Bolivia. The most diverse orders were Rodentia (148 species), Chiroptera (138), Didelphimorphia (35) and Carnivora (27); a total of 25 species are endemic to Bolivia. In addition, 14 species of introduced mammals are listed. Additional records and taxonomic changes are expected as a result of biological inventories currently in execution, re-identification of specimens deposited in national and foreign mammal collections, and future taxonomic revisions.
Nuevos reportes del vampiro de patas peludas _Diphylla ecaudata_ (Chiroptera: Desmodontinae) para los departamentos de Cochabamba y Santa Cruz
(European Organization for Nuclear Research, 2003) Lizette Siles; Arturo Muñoz; Luis F. Aguirre
(Uploaded by Plazi for the Bat Literature Project) No abstract provided.