scholarly journals Uso de dos marcas temporales en dos especies de murciélagos: Myotis chiloensis (Chiroptera: Vespertilionidae) y Tadarida brasiliensis (Chiroptera: Molossidae)

2021 ◽  
Vol 28 (2) ◽  
pp. 001-018
Author(s):  
Francisca Puelma-Diez ◽  
Nélida R. Villaseñor ◽  
Martín A.H. Escobar
Keyword(s):  
Tadarida Brasiliensis

scholarly journals Vírus da raiva em quirópteros naturalmente infectados no Estado de São Paulo, Brasil

2007 ◽  
Vol 41 (3) ◽  
pp. 389-395 ◽  
Author(s):  
Karin Corrêa Scheffer ◽  
Maria Luiza Carrieri ◽  
Avelino Albas ◽  
Helaine Cristina Pires dos Santos ◽  
Ivanete Kotait ◽  
...  
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Tadarida Brasiliensis ◽  
Desmodus Rotundus ◽  
Lasiurus Cinereus ◽  
Artibeus Lituratus

OBJETIVO: Identificar as espécies de morcegos envolvidas na manutenção do ciclo da raiva, verificar a distribuição do vírus da raiva em tecidos e órgãos de morcegos e os períodos de mortalidade dos camundongos inoculados. MÉTODOS: A positividade para o vírus da raiva foi avaliada por imunofluorescência direta em morcegos de municípios do Estado de São Paulo, de abril de 2002 a novembro de 2003. A distribuição do vírus nos morcegos foi avaliada pela inoculação de camundongos e infecção de células N2A, com suspensões a 20% preparadas a partir de fragmentos de diversos órgãos e tecidos, além de cérebro e glândula salivar. A mortalidade dos camundongos foi observada diariamente, após inoculação intracerebral. RESULTADOS: Dos 4.393 morcegos pesquisados, 1,9% foram positivos para o vírus da raiva, pertencentes a dez gêneros, com predomínio de insetívoros. A média do período máximo de mortalidade dos camundongos pós-inoculação a partir de cérebros e glândulas salivares de morcegos hematófagos foi de 15,33±2,08 dias e 11,33±2,30 dias; insetívoros, 16,45±4,48 dias e 18,91±6,12 dias; e frugívoros, 12,60±2,13 dias e 15,67±4,82 dias, respectivamente. CONCLUSÕES: As espécies infectadas com o vírus da raiva foram: Artibeus lituratus, Artibeus sp., Myotis nigricans, Myotis sp., Eptesicus sp., Lasiurus ega, Lasiurus cinereus, Nyctinomops laticaudatus, Tadarida brasiliensis, Histiotus velatus, Molossus rufus, Eumops sp. e Desmodus rotundus. A pesquisa de vírus em diferentes tecidos e órgãos mostrou-se que os mais apropriados para o isolamento foram cérebro e glândulas salivares.

scholarly journals Population structure of a widespread bat (Tadarida brasiliensis) in an island system

2017 ◽  
Vol 7 (19) ◽  
pp. 7585-7598 ◽  
Author(s):  
Kelly A. Speer ◽  
Brandi Jo Petronio ◽  
Nancy B. Simmons ◽  
Rebecca Richey ◽  
Kristin Magrini ◽  
...  
Keyword(s):  
Population Structure ◽  
Tadarida Brasiliensis ◽  
Island System

scholarly journals Rabies in the insectivorous bat Tadarida brasiliensis in Southeastern Brazil

1998 ◽  
Vol 32 (5) ◽  
pp. 484-486 ◽  
Author(s):  
Wilson Uieda
Keyword(s):  
The State ◽  
Southeastern Brazil ◽  
Internal Wall ◽  
Tadarida Brasiliensis

This is the first recorded case of rabies in the insectivorous bat Tadarida brasiliensis in the State of S. Paulo, Southeastern Brazil. The infected bat was found in the afternoon while hanging on the internal wall of an urban building. This observation reinforces the notion as to the caution one must exercise regarding bats found in unusual situations.

scholarly journals Morphometric Differences in Testicular Tissue of Tadarida brasiliensis Bats from the Urban Area of Mexico City During Summer, Autumn, and Winter

2013 ◽  
Vol 31 (3) ◽  
pp. 932-936
Author(s):  
Juan J Pérez-Rivero ◽  
Emilio Rendon-Franco ◽  
Mario Pérez-Martínez ◽  
Alejandro Ávalos-Rodríguez ◽  
Rafael Ávila-Flores
Keyword(s):  
Urban Area ◽  
Mexico City ◽  
Testicular Tissue ◽  
Tadarida Brasiliensis ◽  
Autumn And Winter

scholarly journals Rapid jamming avoidance in biosonar

2006 ◽  
Vol 274 (1610) ◽  
pp. 651-660 ◽  
Author(s):  
Erin H Gillam ◽  
Nachum Ulanovsky ◽  
Gary F McCracken
Keyword(s):  
Abrupt Change ◽  
Considerable Effort ◽  
Echolocation Call ◽  
Tadarida Brasiliensis ◽  
Radar Systems ◽  
Spectral Shifts ◽  
Processing Strategies ◽  
Jamming Avoidance ◽  
Sonar Systems ◽  
Behavioural Correlations

The sonar systems of bats and dolphins are in many ways superior to man-made sonar and radar systems, and considerable effort has been devoted to understanding the signal-processing strategies underlying these capabilities. A major feature determining the efficiency of sonar systems is the sensitivity to noise and jamming signals. Previous studies indicated that echolocating bats may adjust their signal structure to avoid jamming (‘jamming avoidance response’; JAR). However, these studies relied on behavioural correlations and not controlled experiments. Here, we provide the first experimental evidence for JAR in bats. We presented bats ( Tadarida brasiliensis ) with ‘playback stimuli’ consisting of recorded echolocation calls at one of six frequencies. The bats exhibited a JAR by shifting their call frequency away from the presented playback frequency. When the approaching bats were challenged by an abrupt change in the playback stimulus, they responded by shifting their call frequencies upwards, away from the playback. Interestingly, even bats initially calling below the playback's frequency shifted their frequencies upwards, ‘jumping’ over the playback frequency. These spectral shifts in the bats' calls occurred often within less than 200 ms, in the first echolocation call emitted after the stimulus switch—suggesting that rapid jamming avoidance is important for the bat.

scholarly journals REPRODUCTIVE BIOLOGY OF MALE MEXICAN FREE-TAILED BATS (TADARIDA BRASILIENSIS MEXICANA)

2002 ◽  
Vol 83 (2) ◽  
pp. 489-500 ◽  
Author(s):  
Philip H. Krutzsch ◽  
Theodore H. Fleming ◽  
Elizabeth G. Crichton
Keyword(s):  
Reproductive Biology ◽  
Tadarida Brasiliensis ◽  
Tadarida Brasiliensis Mexicana

scholarly journals Experimental Infection ofTadarida brasiliensiswithPseudogymnoascus destructans, the Fungus That Causes White-Nose Syndrome

mSphere ◽  
2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Michelle L. Verant ◽  
Carol U. Meteyer ◽  
Benjamin Stading ◽  
David S. Blehert
Keyword(s):  
Animal Model ◽  
Experimental Animal ◽  
Experimental Infection ◽  
Abundant Species ◽  
Experimental Animal Model ◽  
Pseudogymnoascus Destructans ◽  
Tadarida Brasiliensis ◽  
Content Type ◽  
White Nose Syndrome ◽  
Management Actions

ABSTRACTWhite-nose syndrome (WNS) is causing significant declines in populations of North American hibernating bats, and recent western and southern expansions of the disease have placed additional species at risk. Understanding differences in species susceptibility and identifying management actions to reduce mortality of bats from WNS are top research priorities. However, the use of wild-caught susceptible bats, such asMyotis lucifugus, as model species for WNS research is problematic and places additional pressure on remnant populations. We investigated the feasibility of usingTadarida brasiliensis, a highly abundant species of bat that tolerates captivity, as the basis for an experimental animal model for WNS. Using methods previously established to confirm the etiology of WNS inM. lucifugus, we experimentally infected 11T. brasiliensisbats withPseudogymnoascus destructansin the laboratory under conditions that induced hibernation. We detectedP. destructanson all 11 experimentally infected bats, 7 of which exhibited localized proliferation of hyphae within the epidermis, dermis, and subcutaneous tissue, similar to invasive cutaneous ascomycosis observed inM. lucifugusbats with WNS. However, the distribution of lesions across wing membranes ofT. brasiliensisbats was limited, and only one discrete “cupping erosion,” diagnostic for WNS, was identified. Thus, the rarity of lesions definitive for WNS suggests thatT. brasiliensisdoes not likely represent an appropriate model for studying the pathophysiology of this disease. Nonetheless, the results of this study prompt questions concerning the potential for free-ranging, migratoryT. brasiliensisbats to become infected withP. destructansand move the fungal pathogen between roost sites used by species susceptible to WNS.IMPORTANCEWhite-nose syndrome (WNS) is a fungal disease that is causing severe declines of bat populations in North America. Identifying ways to reduce the impacts of this disease is a priority but is inhibited by the lack of an experimental animal model that does not require the use of wild-caught bat species already impacted by WNS. We tested whetherTadarida brasiliensis, one of the most abundant species of bats in the Americas, could serve as a suitable animal model for WNS research. WhileT. brasiliensisbats were susceptible to experimental infection with the fungus under conditions that induced hibernation, the species exhibited limited pathology diagnostic for WNS. These results indicate thatT. brasiliensisis not likely a suitable experimental model for WNS research. However, the recovery of viable WNS-causing fungus from experimentally infected bats indicates a potential for this species to contribute to the spread of the pathogen where it coexists with other species of bats affected by WNS.

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