Pre-Weaning Mortality in a Florida Maternity Roost of Myotis austroriparius and Tadarida brasiliensis

1986 ◽  
Vol 67 (4) ◽  
pp. 751-754 ◽  
Author(s):  
J. W. Hermanson ◽  
K. T. Wilkins
Keyword(s):  
Tadarida Brasiliensis ◽  
Maternity Roost ◽  
Myotis Austroriparius

scholarly journals Structure and Reproductive Patterns in the Summertime Forest-Bat Community of Southeastern Texas

2014 ◽  
Vol 5 (2) ◽  
pp. 413-421 ◽  
Author(s):  
Anica Debelica-Lee ◽  
Kenneth T. Wilkins
Keyword(s):  
Coastal Plain ◽  
Southeastern United States ◽  
Gulf Coastal Plain ◽  
Reproductive Condition ◽  
Tadarida Brasiliensis ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Reproductive Patterns ◽  
Southeastern Myotis ◽  
Myotis Austroriparius

Abstract Forests of eastern Texas represent the westernmost extent of the southern pine forests and part of the pine belt of the forested Gulf coastal plain. Bat community assemblages in similar forests throughout southeastern United States have been documented in various studies, but only scant data are available for Texas. The purpose of this study was to characterize the assemblage and investigate reproductive patterns of the summer bat community in the austroriparian forest of eastern Texas. Using mist nets, we captured bats during summers 2009–2011 and recorded species, gender, age and reproductive condition. We captured 382 bats of eight species: Seminole Lasiurus seminolus (n  =  163), evening Nycticeius humeralis (n  =  86), big brown Eptesicus fuscus (n  =  57), eastern red Lasiurus borealis (n  =  31), southeastern myotis Myotis austroriparius (n  =  21), tri-colored Perimyotis subflavus (n  =  19), Mexican free-tailed Tadarida brasiliensis (n  =  4), and hoary Lasiurus cinereus (n  =  1) bats. Analysis of reproductive data suggests that three of these species (big brown, evening, and Seminole bats) may be following a reproductive strategy—extended seasonal monoestry (births of single litters spanning a particular season)—different than their previously reported pattern of synchronous monoestry.

YEAR-ROUND BRIDGE COLONY OF MEXICAN FREE-TAILED BATS (TADARIDA BRASILIENSIS MEXICANA) IN TRANS-PECOS TEXAS

2018 ◽  
Vol 70 (1) ◽  
Author(s):  
Stephen Kasper ◽  
Franklin D. Yancey
Keyword(s):  
Late Summer ◽  
Adult Males ◽  
Tadarida Brasiliensis ◽  
Local Resources ◽  
Big Bend ◽  
In Trans ◽  
Novel Behavior ◽  
Maternity Roost ◽  
Tadarida Brasiliensis Mexicana

Abstract Mexican Free-tailed Bats (Tadarida brasiliensis mexicana) from a bridge colony in Big Bend Ranch State Park, Presidio County, Texas were followed over two natal seasons sand two winters. For the period of this study, the bridge was being utilized as a maternity roost with a number of the young of the summer overwintering in each of the two winters examined. The site also was used by nonreproductive adult males during spring and summer. Adult bats left the bridge roost by mid-to-late summer, leaving only young of the summer at the bridge to exploit roost and local resources through the fall and winter. Young of the summer being left at the maternity roost to overwinter is a novel behavior for T. b. mexicana. Sex-and age-specific segregation of bats is inferred within the bridge roost.

Bats under a hot tin roof: comparing the microclimate of eastern cave bat (Vespadelus troughtoni) roosts in a shed and cave overhangs

2007 ◽  
Vol 55 (1) ◽  
pp. 49 ◽  
Author(s):  
B. S. Law ◽  
M. Chidel
Keyword(s):  
Energy Savings ◽  
Early Summer ◽  
Ambient Conditions ◽  
South Wales ◽  
Lactating Females ◽  
Summer Temperatures ◽  
The Cost ◽  
Maternity Roost ◽  
Diurnal Temperatures ◽  
Microclimate Conditions

We compared the microclimate experienced by maternity groups of eastern cave bats (Vespadelus troughtoni) in northern New South Wales between roosts in overhang caves versus a nearby maternity roost beneath the corrugated iron roof of a farm shed. The shed’s microclimate differed dramatically from that of the caves. Caves provided well-buffered microclimate conditions, which were cooler and more humid than ambient conditions during the day, but were warmer and less humid than ambient at night. Early summer temperatures remained between 20 and 25°C in the maternity caves. In contrast, the microclimate at the shed was not buffered, with conditions varying enormously over a 24-h period, being hotter than ambient during the day (mean = 30°C, maximum = 40°C in the middle of the day), and similar to ambient at night (mean = 18°C at dawn). Rather than selecting thermal stability, lactating females selected warm, but variable, diurnal temperatures in the shed, presumably to sustain lactation. Under this situation, we estimated considerable energetic savings by roosting in the shed (27–35%, assuming normothermia) compared with that for caves, and even higher savings if bats were torpid in the mornings and passively rewarmed later (60–69%). Lactating bats therefore presumably traded-off the cost of leaving juveniles behind in a cool roost at night with these energetic benefits. In late autumn bats continued to roost in the shed with day temperatures rising above 30°C, compared with unoccupied caves, which were considerably cooler at this time (~20°C). Clarification of the estimated energy savings and the possible costs in terms of milk production requires further research to measure concurrently body temperatures, roost temperature and energy expenditure, together with juvenile growth in different types of roosts.

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
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