Browsing by Autor "Marisol Hidalgo-Cossio"

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A new occurrence record for the Vulnerable Rhinella rumbolli&nbsp;(Carrizo, 1992) (Anura, Bufonidae) in Tarija, Bolivia
(Pensoft Publishers, 2021) Patricia Mendoza-Miranda; Beatriz Nieto‐Ariza; Marisol Hidalgo-Cossio; Ximena Velez–Liendo
We present a new altitudinal record for Salta Toad, Rhinella rumbolli (Carrizo, 1992). This species is recorded in northern Argentina and southern Bolivia from 700 to 1800 m a.s.l. Our new record comes from San Lorencito, M&eacute;ndez Province, Tarija Department, Bolivia, and extends the altitudinal range by 569 m a.s.l.
Contribution of camera-trapping to the knowledge of Abrocoma boliviensis
(Asociacion Mexicana de Mastozoología A.C., 2020) Carmen Julia Quiroga Pacheco; Marisol Hidalgo-Cossio; Ximena Velez–Liendo
Rare and endemic rodent species, such as the critically endangered Bolivian chinchilla rat, Abrocoma boliviensis, are infrequently captured using traditional trapping methods. Therefore, to determine their presence and abundance, indirect records (bird pellets, feces, bone remains) are often used. Although not a popular method for rodents, the incorporation of photography is known to provide precise data. Therefore, the objective of this report was to demonstrate the importance of using photographic records and occupancy models in the study of the distribution and ecology of a small-body species with high conservation value. We used photographic records obtained from 180 camera-trap nights in two areas of the Andean dry forests of Bolivia, during both wet and dry seasons. Data analysis include the estimates of presence probability of A. boliviensis in the study sites, using an exploratory occupancy analysis. The estimated presence probability of Abrocoma boliviensis for the study sites were 30.2 % during dry season and 33.9 % during wet season. However, due to the limited amount of photographic records for the species , it was not possible to accurately determine the factors affecting the species presence probability. Camera-trapping records and associated metadata provided new ecological and distribution data for the Bolivian chinchilla rat. In combination with information about threats that the species faces, our data may be useful in generating and applying conservation actions.
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.
Population genetics and lineage structure of the endangered Bolivian chinchilla rat Abrocoma boliviensis
(2025) Daniela Arenas-Viveros; Teresa Tarifa; Marisol Hidalgo-Cossio; Omar F. Osco; Ximena Velez–Liendo; Jorge Salazar‐Bravo
<title>Abstract</title> Studies on conservation genetics of endangered species have the ability to identify which populations should be the focus of management plans. The Bolivian chinchilla rat, <italic>Abrocoma boliviensis</italic>, is currently threatened by its rarity, paucity of information about its natural history, and landscape transformation driven by anthropogenic activities. Given the conservation status and limited distribution of <italic>A. boliviensis</italic>, understanding how its genetic diversity is apportioned is crucial to inform any potential conservation efforts. In this study, we assessed the genetic diversity and population structure of <italic>A. boliviensis</italic> as a first approximation to a comprehensive evaluation of the species. Mitochondrial data from 11 individuals of <italic>A. boliviensis</italic> reveal high levels of genetic distance, nucleotide diversity and polymorphisms, all of which indicate the existence of three separate clades. This is further supported by reduced representation genomic data that shows little to no admixture between these clades, suggesting that these lineages have been on separate evolutionary pathways and should be identified, at minimum, as separate evolutionary significant units. Our contribution highlights the urgency with which survey efforts must become the first order of action, and how new population-level data will provide a better understanding of the species, the evolutionary trajectory of its lineages, and the steps to take towards its conservation.
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.