Analysis of the echolocation calis and morphometry of a population of Myotis chiloensis (Waterhouse, 1838) from the southern Chilean temperate forest

Ossa, Gonzalo; Ibarra, José Tomás; Barboza, Kathrin; Hernández, Felipe; Galvéz, Nicolás; Laker, Jerry; Bonacic, Cristián

doi:10.4067/s0718-16202010000200013

Cited by 6 publications

(7 citation statements)

References 12 publications

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“…Altamirano et al () described the use of tree holes of H. magellanicus at the Araucanía region, showing that the colonies were formed by no more than 10 adult individuals and they change roost frequently during the year (Altamirano et al, ). On the other hand, when buildings are used, colonies of M. chiloensis can consist of hundreds of individuals (Ossa et al, ). However, we have yet to observe B. chilensis on H. magellanicus or any other bat species.…”

Section: Discussionmentioning

confidence: 99%

The Klingon batbugs: Morphological adaptations in the primitive bat bugs, Bucimex chilensis and Primicimex cavernis, including updated phylogeny of Cimicidae

Ossa¹,

Johnson

Puisto

et al. 2019

Ecology and Evolution

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The Cimicidae is a family of blood‐dependent ectoparasites in which dispersion capacity is greatly associated with host movements. Bats are the ancestral and most prevalent hosts for cimicids. Cimicids have a worldwide distribution matching that of their hosts, but the global classification is incomplete, especially for species outside the most common Cimicidae taxa. In this study, we place a little‐studied cimicid species, Bucimex chilensis , within a comprehensive molecular phylogeny of Cimicidae by sequencing the genomic regions of this and other closely related species. For this study, we collected B. chilensis females from Myotis chiloensis in Tierra del Fuego, 1,300 km further south than previously known southernmost distribution boundary. We also sequenced COI regions from Primicimex cavernis , a species which together with B. chilensis comprise the entire subfamily Primiciminae. Using Bayesian posterior probability and maximum‐likelihood approaches, we found that B. chilensis and P. cavernis clustered close to each other in the molecular analyses, receiving support from similar morphological features, agreeing with the morphology‐based taxonomic placement of the two species within the subfamily Primiciminae. We also describe a previously unrecognized morphological adaptation of the tarsal structure, which allows the austral bat ectoparasite, B. chilensis , to cling on to the pelage of its known host, the Chilean myotis ( Myotis chiloensis ). Through a morphological study and behavioral observation, we elucidate how this tarsal structure operates, and we hypothesize that by clinging in the host pelage, B. chilensis is able to disperse effectively to new areas despite low host density. This is a unique feature shared by P. cavernis , the only other species in Primiciminae.

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Section: Discussionmentioning

confidence: 99%

The Klingon batbugs: Morphological adaptations in the primitive bat bugs, Bucimex chilensis and Primicimex cavernis, including updated phylogeny of Cimicidae

Ossa¹,

Johnson

Puisto

et al. 2019

Ecology and Evolution

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“…This species roosts in holes and fissures within the largest decaying trees available in their stands (Altamirano et al 2017), as well as underneath the loose bark of dead trees (Peña & Barria 1972). Myotis chiloensis (forearm: 33-42 mm; weight: 6-10 g) uses both anthropogenic and natural roosts and is often found in buildings (Ossa et al 2010;Ossa & Rodriguez-San Pedro 2015). In tree roosts, this species is found in holes, fissures, and underneath the bark of dead trees (Mann 1978).…”

Section: Study Speciesmentioning

confidence: 99%

Roosting ecology of the southernmost bats,Myotis chiloensisandHistiotus magellanicus, in southern Tierra del Fuego, Chile

Ossa¹,

Lilley

Waag

et al. 2020

Preprint

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There are few studies of day-roosting ecology of bats inhabiting the southernmost forests of South America, where cool summer temperatures and land management practices pose several challenges. The goal of the present study was to describe day-roosting habitats and patterns of thermoregulation in two bat species occurring on Tierra del Fuego, Myotis chiloensis (Chilean myotis) and Histiotus magellanicus (southern big-eared brown bat), during late spring. To do so, we tagged 17 bats with temperature-sensitive radio-transmitters, located 17 day-roosts, and collected 81 days of skin temperature data. We concurrently recorded ambient air temperature to determine its effect on torpor use. Both species were found roosting in large diameter (77.8 ± 6 cm), typically live, Nothofagus pumilio trees (lenga) located on the edges of forest gaps or within stands primarily composed of smaller, younger trees. Bats of both species frequently used torpor, with skin temperatures dropping below a torpor threshold on 89% of days (n = 72) and daily minimum skin temperatures averaging 16.5 °C over the course of our study. Average daily air temperature was a significant predictor of torpor use, with lower skin temperatures and more time spent in torpor observed on colder days. Minimum skin temperature and time spent torpid did not vary between bat species, nor did the characteristics of day-roosts. These data show that spring temperatures in Tierra del Fuego pose an energetic challenge that bats meet through frequent use of torpor, and likely, habitat selection. We recommend local conservation efforts keep these thermal challenges in mind by retaining large trees, which may provide warmer microclimates or room for social groups.

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“…It is one of the smallest bats in Chile and South America, along with Myotis chiloensis (Canals et al, 2005;Mann, 1978). The distribution ranges of these species overlap in the Coquimbo and Valparaiso regions (Iriarte, 2008;Rodriguez-San Pedro et al, 2015, 2014, however they are easily recognizable in hand because of the lighter fur color and shorter forearm of M. atacamensis (Ossa et al, 2010b(Ossa et al, , 2015.…”

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confidence: 99%

First records of the endangered Atacama Myotis Myotis atacamensis (Chiroptera, Vespertilionidae), at high altitude in the Parinacota Province, northern Chile

Ossa¹,

Vilches

Faúndez

2017

Idesia

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Analysis of the echolocation calis and morphometry of a population of Myotis chiloensis (Waterhouse, 1838) from the southern Chilean temperate forest

Cited by 6 publications

References 12 publications

The Klingon batbugs: Morphological adaptations in the primitive bat bugs, Bucimex chilensis and Primicimex cavernis, including updated phylogeny of Cimicidae

The Klingon batbugs: Morphological adaptations in the primitive bat bugs, Bucimex chilensis and Primicimex cavernis, including updated phylogeny of Cimicidae

Roosting ecology of the southernmost bats,Myotis chiloensisandHistiotus magellanicus, in southern Tierra del Fuego, Chile

First records of the endangered Atacama Myotis Myotis atacamensis (Chiroptera, Vespertilionidae), at high altitude in the Parinacota Province, northern Chile

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