Browsing by Autor "Mauricio Ocampo"

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A New Species of<i>Liolaemus</i>(Iguania: Liolaemidae) of the<i>Alticolor</i>Group from La Paz, Bolivia
(Herpetologists' League, 2012) Mauricio Ocampo; Álvaro J. Aguilar-Kirigin; Andrés Sebastián Quinteros
We describe a new species of Liolaemus, belonging to the alticolor group, that was previously confused with L. walkeri. The new species inhabits the inter-Andean dry valleys at two localities in the department of La Paz (Ananta and Jupapina), Bolivia. We compared the new species with 11 morphologically similar taxa classified as part of the alticolor group. Our comparisons were based on external morphology and included lepidosis, morphometry, meristic characters, and color patterns. Liolaemus sp. nov. differs from other species of the same group by unique dorsal coloration and lepidosis characteristics.Describimos una nueva especie de Liolaemus perteneciente al grupo alticolor, previamente confundida con L. walkeri. Esta nueva especie habita en los valles secos inter-Andinos, en las localidades de Ananta y Jupapina, provincia Murillo, departamento de La Paz, Bolivia. Basándonos en caracteres de morfología externa (lepidosis, morfometría, caracteres merísticos y patrones de coloración), comparamos el nuevo taxón con 11 taxa morfológicamente similares que pertenecen al grupo alticolor. Liolaemus sp. nov. difiere de las demás especies del grupo por presentar un patrón de coloración dorsal y características de su lepidosis únicos. Estos resultados nos ayudan a concluir que se trata de una especie nueva del género Liolaemus.
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
A Successful Early Warning System for Hydroclimatic Extreme Events: The Case of La Paz City Mega Landslide
(Springer Nature, 2017) Marilyn Aparicio-Effen; I. Arana-Pardo; Joyce Morales Aparicio; Mauricio Ocampo; Silva Roque; 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
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.
First record and description of the advertisement call of Rhinella tacana by Mauricio Ocampo et al. 2026
(European Organization for Nuclear Research, 2026) Mauricio Ocampo
This is the first recording and description of the advertisement call of the species Rhinella tacana.
First record and description of the advertisement call of Rhinella tacana by Mauricio Ocampo et al. 2026
(European Organization for Nuclear Research, 2026) Mauricio Ocampo
This is the first recording and description of the advertisement call of the species Rhinella tacana.
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.
Lluvia de Semillas en Tierras Agrícolas Abandonadas en un Bosque Boliviano-Tucumano
(2007) Luis L. Arteaga; Carlos Zambrana‐Torrelio; Paola Flores-Saldana; Mauricio Ocampo; Paula De La Torre; M. Isabel Moya
Muerte de mamíferos por los incendios de 2019 en la Chiquitania
(2021) Luis F. Pacheco; Lineth C. Quispe-Calle; Fabiola A. Suárez-Guzmán; Mauricio Ocampo; Ángel J. Claure-Herrera
Patterns of morphological diversification are influenced by dietary evolution in a highly species-rich lizard radiation
(Frontiers Media, 2024) Mauricio Ocampo; Daniel Pincheira‐Donoso; Rodrigo S. Ríos
The diversification of lineages is facilitated or constrained by the simultaneous evolution of multiple components of the phenotype that interact with each other during the course of speciation. When evolutionary radiations are adaptive, lineages proliferate via the emergence of multiple phenotypic optima that underlie diversification of species across multiple ecological niches. When radiations are non-adaptive, lineage proliferation unfolds constrained by similar (or nearly identical) correlations among traits that keep phenotypic and ecological diversity across newly emerging species within a single optimum. Nature offers very few opportunities where both types of diversification occur between closely related and highly diverse lineages. The Liolaemidae family of South American lizards offers unique such opportunities given two speciose lineages that have rapidly proliferated via adaptive ( Liolaemus ) and non-adaptive ( Phymaturus ) radiations. We analyze body shape in lizards in association with type of diet (herbivory, omnivory or carnivory). In these lizards, diet types have been suggested to be linked to body size. Our results confirm this hypothesis, with three body size optima tightly linked to all three diet types when radiation is both adaptive and non-adaptive. Diet reconstruction along their evolutionary history showed that the common ancestor of Liolaemidae was likely omnivorous, which is matched by ancestral reconstruction of body size. Phylogenetic PCA revealed that herbivorous species generally have more differentiated body shape than insectivores and omnivores. Herbivorous species have evolved larger heads, shorter hindlimbs and a small difference between forelimb and hindlimb length. In contrast, omnivores and insectivores have smaller heads and longer hindlimbs. Collectively, trophic niche plays an important role in defining body shape and size across species within lineages, and the patterns of trait–ecology correlations remain consistent when lineages have diversified via adaptive and non-adaptive radiation.
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.
Tortoise and Freshwater Turtle (Testudines) Diversity and Species Richness in Bolivia
(2025) Enrique Domic-Rivadeneira; Dennis Lizarro; Gustavo Rey-Ortíz; Cinthya Alejandra Ureña-Aranda; Sandra Acebey; Pamela Jenny Carvajal-Bacarreza; Eliamne K. Gutiérrez; Rossy Montaño; Mauricio Ocampo; Germán Forero‐Medina
Vine snakes (Oxybelis) and Sharpnose snakes (Xenoxybelis) (Squamata, Serpentes) from lowlands of Bolivia, with first records of Oxybelis inkaterra for the country
(Pensoft Publishers, 2024) Luis Rolando Rivas; Gustavo Rey-Ortíz; Cord B. Eversole; Randy L. Powell; Gonzalo Navarro-Cornejo; Edson Cortez; Mauricio Ocampo; Gabriel Callapa; Arturo Muñoz
We present information on the occurrence of colubrid vine snakes ( Oxybelis ) and dipsadid sharpnose snakes ( Xenoxybelis ) from the lowlands of Bolivia. These genera have been poorly reported from Bolivia and information presented herein includes nine new record provincials from the departments of Beni, Cochabamba, La Paz, Pando, and Santa Cruz, Bolivia. Moreover, we present the first records of Oxybelis inkaterra Jadin, Jowers, Orlofske, Duellman, Blair & Murphy, 2021 from Bolivia and we extend the known range of this species by approximately 207 km (Río Sipia, La Paz) and 628 km (Campamento Guacharos, Cochabamba) southeast of the type locality (Puerto Maldonado, Peru) in South America. In addition, we present morphometric information, meristic characters, coloration pattern, ecological aspects and natural history for the three species of vine snakes ( O. aeneus , O. fulgidus , O. inkaterra ) and two species of sharpnose snakes ( X. argenteus , X. boulengeri ) from the Bolivian lowlands.
Vine snakes (Oxybelis) and Sharpnose snakes (Xenoxybelis) (Squamata, Serpentes) from lowlands of Bolivia, with first records of Oxybelis inkaterra for the country
(2026) Luis R. Rivas; Gustavo Rey-Ortíz; Cord B. Eversole; Randy L. Powell; Gonzalo Navarro-Cornejo; Edson Cortez; Mauricio Ocampo; Gabriel Callapa; Arturo Muñoz