Browsing by Autor "James Aparicio"

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A new species of Osteocephalus (Anura: Hylidae) from Amazonian Bolivia: first evidence of tree frog breeding in fruit capsules of the Brazil nut tree
(Q15088586, 2009) Jiřı́ Moravec; James Aparicio; MARCELO GUERRERO-REINHARD; Gonzalo Calderón; Karl‐Heinz Jungfer; Václav Gvoždík
A new species of Osteocephalus is described from lowland Amazonia of the Departamento Pando, northern Bolivia. The new species is most similar to Osteocephalus planiceps but differs by its smaller size (SVL 47.8–51.3 mm in males, 47.7–63.3 mm in females), absence of vocal slits, lack of sexual dimorphism in dorsal tubercles, single distal subarticular tubercle on the fourth finger, absence of dark spots on flanks, and by bicoloured iris with fine dark reticulate to radiate lines. The new species inhabits terra firme rainforest, breeds in water-filled fruit capsules of the Brazil nut tree and has oophagous tadpoles. Estimations of phylogenetic relationships within Osteocephalus based on mitochondrial DNA sequences show that the new species is closely related to O. planiceps and O. deridens.
A new species of tree frog, genus Dendropsophus (Anura: Hylidae), from the Amazon of northern Bolivia
(Q15088586, 2006) Jiří Moravec; James Aparicio; Jörn Köhler
We describe a new species of small Dendropsophus from lowland Amazonia of the Departamento Pando, northern Bolivia. The new species is mainly characterized by smooth dorsal skin, indistinct tympanic annulus, lack of tarsal folds, yellowish-tan to reddish-brown dorsum with obscure dark brown markings, colouration of loreal-tympanic region and flanks sharply outlined and contrasting against dorsum and yellowish-green to bluish-green vocal sac in life. The advertisement call consists of a series of very short pulsed notes, with note repetion rate being the highest known within the species group. Regarding the morphological similarities of adults, the new species is tentatively grouped with species placed in the Dendropsophus microcephalus group.
A Novel Transdisciplinary Methodology and Experience to Guide Climate Change Health Adaptation Plans and Measures
(Springer Nature, 2020) Marilyn Aparicio-Effen; James Aparicio; Cinthya Ramallo; Mauricio Ocampo; Gustavo J. Nagy
Climate Change and Health Vulnerability in Bolivian Chaco Ecosystems
(Springer Nature, 2016) Marilyn Aparicio-Effen; Ivar Arana; James Aparicio; Cinthya Ramallo; Nelson Bernal; Mauricio Ocampo; Gustavo J. Nagy
Climate Change Health Impacts: The Need for Watershed and Ecohealth Approaches Base for Health Adaptation Strategies and Policies
(Springer Nature, 2022) Marilyn Aparicio-Effen; Oscar Paz-Rada; Ivar Arana-Pardo; James Aparicio; Cinthya Ramallo; Eufemia Briançon; Ximena Huanca; Gustavo J. Nagy
COMPREHENSIVE ANALYSIS OF REPTILE DIVERSITY IN MADIDI NATIONAL PARK AND NATURAL INTEGRATED MANAGEMENT AREA, ONE OF THE WORLD’S MOST BIOLOGICALLY DIVERSE PROTECTED AREAS
(National Autonomous University of Mexico, 2025) James Aparicio; Mauricio Ocampo; Nuria Bernal‐Hoverud; Enrique Domic; Robert B. Wallace
The Amazon is the worlds largest tropical rainforest, hosting a myriad of plants, fungi and animals, and encompassing a wide diversity of ecoregions. Bolivia has allocated 17 % of its territory to national protected areas, among which Madidi National Park and Natural Integrated Management Area boasts the largest representation of ecoregions in the country. However, despite its significance, knowledge of Madidis herpetofauna remains limited. This study presents the most comprehensive survey of reptile diversity in and around Madidi, combining an extensive literature review with three years of fieldwork. We computed alpha, beta, gamma, and dark diversity indices to comprehend the composition of reptile species across the ecoregions represented within the protected area. We registered 110 reptile species within the park, with the Sub-Andean Amazon Forest ecoregion displaying the highest diversity. The diversity indices applied indicate the potential for discovering additional species in the area, and as expected for a mountainous area, there is a high turnover of species between ecoregions, each of them exhibiting a distinctive species composition. We recommend continuous monitoring in an area with such high reptile diversity, particularly considering the impacts that climate change will have on these species’ assemblages over time.
Description and phylogeny of a new species of Liolaemus (Iguania: Liolaemidae) endemic to the south of the Plurinational State of Bolivia
(Public Library of Science, 2019) Cristian Simón Abdala; Álvaro J. Aguilar-Kirigin; Romina Valeria Semhan; Ana Lucia Bulacios Arroyo; Julián Valdés; Marcos Maximiliano Paz; Roberto Gutiérrez; Pablo Valladares Faúndez; Robert Langstroth; James Aparicio
The Liolaemus montanus group is a diverse group of lizards that ranges from central Peru to southwestern Mendoza, Argentina, including much of the Plurinational State of Bolivia ("Bolivia") and Chile. The species of this group mainly inhabit high elevation areas with cold temperatures. In the last years, several species of this group have been described, mostly in Argentina and Chile. In Bolivia, there are at least thirteen valid species belonging to the L. montanus group. In this study, we describe a new species of the L. montanus group with a marked endemism in the Cordillera de Sama of the Tarija Department, Bolivia, and a combination of unique character states that allows its formal description as a new species. The phylogenetic relationships based on analysis of 159 morphological characters suggest that it belongs to the L. montanus group, and that it is closest to Liolaemus pulcherrimus, which is found allopatrically in a small area of the Jujuy Province, Argentina. The multivariate analyses of 66 morphological characters support the phylogenetic relationships. Statistical analyses of inter-species comparisons of morphological characters are not considered the only methods due to the non-independence of some characters states among species; thus, a phylogenetic analysis is recommended. The detailed revision of specimens of the L. montanus group held in the collections of Bolivia is filling major geographic gaps and improving our understanding of the phylogenetic and biogeographic relationships of this widely distributed group of South American lizards.
Diversity of small Amazonian Dendropsophus (Anura: Hylidae): another new species from northern Bolivia
(Q15088586, 2008) Jiří Moravec; James Aparicio; MARCELO GUERRERO-REINHARD; Gonzalo Calderón; Jörn Köhler
A new small species of Dendrospsophus is described from lowland Amazonia of the Departamento Pando, northern Bolivia. The new species is mainly characterized by smooth dorsal skin with scattered minute tubercles, relatively large distal subarticular tubercle on first toe, lack of tarsal folds, light brown to dark reddish or purple brown dorsum with numerous small dark markings and spots, dark colouration of loreal-tympanic region sharply outlined and contrasting against dorsal head colouration, one or two small white spots below the eye, yellow vocal sac in life, and advertisement call consisting of two notes with strong amplitude modulation. The new species is tentatively grouped with species placed in the Dendropsophus microcephalus group. It has rather arboreal habits and occurs in the tree canopy along swampy or flooded shores of smaller streams running through terra firme rainforest.
DNA taxonomy reveals two new species records of Hyalinobatrachium (Anura: Centrolenidae) for Bolivia
(Q15088586, 2011) Santiago Castroviejo‐Fisher; Jiřı́ Moravec; James Aparicio; MARCELO GUERRERO-REINHARD; Gonzalo Calderón
We collected two specimens of the genus Hyalinobatrachium during fieldwork expeditions to the Departamento Pando—the northernmost region of Bolivia situated in the south-western Amazonian basin, within the zone of tall evergreen lowland rainforest. The specimens are deposited in the Colección Boliviana de Fauna, La Paz (CBF 6453) and in the National Museum, Prague (NMP6V 74059). Because species identification within Hyalinobatrachium based only on morphological characters is in many cases problematic (Kok & Castroviejo-Fisher 2008; Castroviejo-Fisher et al. 2009), we took advantage of published sequences of Hyalinobatrachium to identify our samples. Our results show that each specimen belongs to a different species (H. mondolfii and H. munozorum), none of them previously known to occur in Bolivia. The taxonomic implications of our discovery are briefly discussed.
Home range and habitat use of two sympatric crocodylians (Melanosuchus niger and Caiman yacare) under changing habitat conditions
(Brill, 2020) Paola De la Quintana; James Aparicio; Luis F. Pacheco
Abstract We used radio-telemetry to record how Caiman yacare (Cy) and Melanosuchus niger (Mn) responded to the intrusion of the Maniqui river into Cedral Lagoon in the Bolivian Amazon. Nine M. niger and 3 C. yacare were followed between December 2015 and May 2016. Both species showed a gradual reduction in mean monthly range from December (19.96 ha Mn and 1.74 ha Cy) to May 2016 (0.08 ha Mn and 0.24 ha Cy). Habitat use was fairly constant throughout the months for both species, Melanosuchus niger used mainly open swampy forests and Cyperaceae Marshes, while C. yacare used more islands and flooded grasslands. This study shows that both species of caimans responded to changes in depth and vegetation types, as their habitat as a whole was changed by river intrusion.
Introduction of a novel natural history collection: a model for global scientific collaboration and enhancement of biodiversity infrastructure with a focus on developing countries
(Springer Science+Business Media, 2019) Cord B. Eversole; Randy L. Powell; Dennis Lizarro; Federico Moreno; Gonzalo Calderón Vaca; James Aparicio; Ashton V. Crocker
Pérdida de agua por evaporación en Gastrotheca marsupiata y Pleurodema cinereum en un valle seco altoandino
(National Autonomous University of Mexico, 2021) Leslie J. Zegada-Herbas; Fausto R. Méndez‐de la Cruz; Mauricio Ocampo; James Aparicio; Luis F. Pacheco
Los anfibios conforman uno de los grupos más diversos y exitosos del planeta, pero no lograron independizarse por completo de los cuerpos de agua y están sujetos a una constante pérdida de agua por evaporación, que depende de factores determinados por el hábitat que ocupan. Gastrotheca marsupiata y Pleurodema cinereum son anfibiosanuros que comparten el mismo tipo de hábitat en el Valle de La Paz. El objetivo del presente trabajo fue comparar la pérdida de agua por evaporación entre las 2 especies, tanto en condiciones de laboratorio utilizando individuos vivos, así como en diferentes microhábitats naturales utilizando modelos de agar. Los resultados muestran que losindividuos de G. marsupiata pierden más agua que los de P. cinereum, tanto en condiciones de laboratorio como los modelos simulados en los diferentes microhábitats. Nuestros resultados sugieren que la aparente disminución de las poblaciones de G. marsupiata en el Valle de La Paz puede estar influenciada por la pérdida de agua por evaporación, ya que independientemente del microhábitat y la hora del día, G. marsupiata pierde más agua que P. cinereum.
Southernmost record for the leaflitter frog Pristimantis ockendeni (Boulenger, 1912) (Anura: Craugastoridae)
(Pensoft Publishers, 2017) Mauricio Ocampo; James Aparicio; Robert B. Wallace
We expanded the known distribution of the leaflitter frog Pristimantis ockendeni (Boulenger, 1912) with a new record from Madidi National Park, La Paz, Bolivia. This represents the southernmost record along the Andes for this species. Individuals were found in montane savanna and gallery forest at about 1800 m above sea level close to the Machariapo River near the community of Sarayo.
Thermoregulation and microhabitat use of Tachymenis peruviana (Dipsadidae) in semi-captivity conditions
(Brill, 2024) Alejandro Bruno Miranda‐Calle; Paola De la Quintana; James Aparicio; Noelia Ríos; Luis F. Pacheco
Abstract We studied Tachymenis peruviana `s thermoregulatory strategy, and microhabitat use and selection in an open enclosure at 3400 m elevation during the wet season. We expected that thermal conditions at a high elevation locality would result in differences in the thermoregulatory efficiency within microhabitats through their use and selection along the day. We obtained preferred temperatures and critical thermal tolerance limits of field-captured individuals. Some individuals were kept in an open enclosure with access to four microhabitat types with retreats where to hide. We measured individuals’ field-body temperatures along with substrate and air temperatures, and recorded where the snakes were found according to microhabitat type and if they were inside or outside retreats. Meanwhile, operative temperatures were registered every hour at each offered microhabitat between 08:00 to 18:00 hours. The body and microenvironmental temperatures were highly correlated. Even though the enclosure offered appropriate thermal sources for snakes to reach their preferred temperatures, results indicate that the species met its energy requirements with a low effort in this high elevation enclosure. Almost three-quarters of the observations were recorded in retreat sites, showing a lower thermoregulatory efficiency compared to when they were captured aboveground. A comparative evaluation of the thermoregulation of the species in the field within a variety of thermal regimes experienced along its altitudinal and latitudinal range must still be carried out to better understand the species’ thermoregulatory strategies across the Andes.
Thermoregulation of Liolaemus aparicioi (Iguania: Liolaemidae) along a 1000 m elevational gradient in La Paz Valley, La Paz, Bolivia
(Elsevier BV, 2021) Alejandro Bruno Miranda‐Calle; Luis F. Pacheco; James Aparicio; Fausto R. Méndez‐de la Cruz