First Acoustic Records of the Brazilian Free-Tailed Bat (<i>Tadarida brasiliensis</i>) In British Columbia

Ommundsen, Peter; Lausen, Cori L.; Matthias, Laura

doi:10.1898/nwn16-24.1

Cited by 9 publications

(8 citation statements)

References 12 publications

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“…First, white-nose syndrome, an emerging fungal pathogen of bats associated with extensive population decline in several bat species, was first reported in Washington during 2016 [ 56 ], with unknown consequences on bat RABV dynamics [ 4 ]. Second, the Brazilian free-tailed bat ( Tadarida brasiliensis ), which is not indigenous to Washington but accounts for the highest RABV positivity in the United States [ 3 ], was reported for the first time in British Columbia during 2015 [ 57 ]. These developments further underscore the importance of collecting taxonomic data as part of RABV surveillance to detect changes in bat RABV ecology, such as the introduction of novel bat RABV variants into established populations.…”

Section: Discussionmentioning

confidence: 99%

Bat rabies in Washington State: Temporal-spatial trends and risk factors for zoonotic transmission (2000–2017)

et al. 2018

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BackgroundRabies is a zoonotic viral disease that can affect all mammals. In the United States, the majority of human rabies cases are caused by bats, which are the only known reservoirs for rabies virus (RABV) in Washington State. We sought to characterize bat RABV epidemiology in Washington among bats submitted by the public for RABV testing.MethodsWe examined temporal and spatial trends in RABV positivity (% positive) for taxonomically identified bats submitted to diagnostic laboratories during 2006–2017. For a subset of Myotis species, we evaluated sensitivity and predictive value positive (PPV) of morphological identification keys, using mitochondrial markers (cytochrome b) as a reference. For bats tested during 2000–2016, we analyzed RABV positivity by circumstances of encounters with humans, cats, and dogs.ResultsDuring 2006–2017, RABV positivity for all bat species was 6.0% (176/2,928). Among species with ≥100 submissions, RABV positivity was 2.0%–11.7% and highest among big brown bats (Eptesicus fuscus). An increasing trend in annual positivity was significant only for big brown bats (P = 0.02), and was circumstantially linked to a geographic cluster. Sensitivity and PPV of morphological identification keys was high for M. evotis but varied for M. lucifugus, M. californicus, M. yumanensis, and M. septentrionalis. A positive RABV result was significantly associated with nonsynanthropic species, abnormal behavior, abnormal hiding, injury, biting, found in a body of water, found alive, found outdoors, and caught by a dog.ConclusionMonitoring passive RABV surveillance trends enables public health authorities to perform more accurate risk assessments. Differences in temporal and spatial trends in RABV positivity by bat species indicate the importance of collecting taxonomic data, although morphological identification can be unreliable for certain Myotis species. Current public health practices for RABV exposures should be maintained as RABV infection in bats can never be excluded without diagnostic testing.

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Section: Discussionmentioning

confidence: 99%

Bat rabies in Washington State: Temporal-spatial trends and risk factors for zoonotic transmission (2000–2017)

et al. 2018

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“…When the environmental predictors were not aligned with a species' restricted range, however, adding a spatial Gaussian process to account for these broad-scale spatial patterns improved predictions more substantially. For instance, the distribution limits of TABR in Oregon and Washington are not well understood and recent acoustic detections suggest the species occurs farther north than previously believed (Ommundsen et al,2017). Because TABR is a generalist species and capable of long-distance dispersal, its range boundaries can shift rapidly and are difficult to define (Genoways et al, 2000;McCracken et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Spatial Gaussian processes improve multi‐species occupancy models when range boundaries are uncertain and nonoverlapping

Wright

Irvine

Rodhouse

et al. 2021

Ecology and Evolution

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“…WNS has led to increased bat survey and conservation efforts in the eastern United States and has highlighted current biogeographic trends for both impacted and non-impacted bat species. For example, numerous extralimital records of Tadarida brasiliensis (Brazilian free-tailed bat - Genoways et al, 2000;Ommundsen et al, 2017;McCracken et al, 2018), and Lasiurus seminolus (Seminole bat - Mcallister et al, 2004;Lacki et al, 2014;Perry, 2018) have been observed. However, attributing apparent expansions in range for species and communities based solely on climate change may be misleading because other factors may be contributory Nowacki, 2015, 2019;Razgour et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Forecasting the Distribution of a Range-Expanding Bat Reveals Future Response to Climate Change and Habitat

True

Perry

Ford

2021

Acta Chiropterologica

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Many terrestrial vertebrate species are exhibiting geographic distribution changes including poleward range limit shifts in response to increases in regional temperature. Bats are a highly mobile taxa capable of rapid responses to changes in abiotic or biotic conditions. In North America, recent extralimital records of the non-hibernating Lasiurus seminolus (Seminole bat) have been attributed to climate change, however such attributions remain speculative and potentially subject to sampling bias in the form of increased recent sampling efforts at latitudes north of the historical range. We used historical occurrence records and simple environmental variables within a Maxent modeling framework to model the historical distribution of suitable areas for this species. We transferred the model using near current environmental conditions and measured the ability of the model to capture the apparent expansion in distribution using recent extralimital occurrence records. Our model transferred well over time concluding that the distribution expansion may be largely attributed to increasing minimum temperatures. We used the model to forecast the expansion in distribution of suitable areas at three 20-year intervals and various climate change scenarios and provide extrapolation risk maps for each scenario. Although increasing temperatures may increase potentially occupiable areas, the species is associated with forests and often roosts in pines (Pinus spp.). This suitable habitat is more limited to the northwest of the species' range, which may constrain the future species expansion despite favorable temperatures. We demonstrated this effect by mapping limiting factors through future climate change scenarios. We discovered a broad shift of effects that constrained the distribution from minimum temperature to an abundance metric of evergreen cover type as time and climate change intensity increased. Although uncertainties exist, we predict further expansion of the Seminole bat widely over the next 60 years across the eastern United States where suitable habitat and climate conditions converge. Our results appear consistent with other bat species showing similar range extensions and in turn provide further evidence that bats may serve as bioindicators of global change.

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First Acoustic Records of the Brazilian Free-Tailed Bat (Tadarida brasiliensis) In British Columbia

Cited by 9 publications

References 12 publications

Bat rabies in Washington State: Temporal-spatial trends and risk factors for zoonotic transmission (2000–2017)

Bat rabies in Washington State: Temporal-spatial trends and risk factors for zoonotic transmission (2000–2017)

Spatial Gaussian processes improve multi‐species occupancy models when range boundaries are uncertain and nonoverlapping

Forecasting the Distribution of a Range-Expanding Bat Reveals Future Response to Climate Change and Habitat

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