Stress-induced changes in body temperature of silver-haired bats (Lasionycteris noctivagans)

Muise, Kristina A.; Menzies, Allyson K.; Willis, Craig K. R.

doi:10.1016/j.physbeh.2018.06.003

Cited by 9 publications

(7 citation statements)

References 34 publications

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“…We suspect this is due to stress associated with the handling process, as stress has been demonstrated to cause body temperature elevation in bats. 46 We did not measure the temperature of free‐ranging bats.…”

Section: Resultsmentioning

confidence: 99%

Sick bats stay home alone: fruit bats practice social distancing when faced with an immunological challenge

Moreno

Weinberg

Harten

et al. 2021

Annals of the New York Academy of Sciences

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Along with its many advantages, social roosting imposes a major risk of pathogen transmission. How social animals reduce this risk is poorly documented. We used lipopolysaccharide challenge to imitate bacterial infection in both a captive and a free-living colony of an extremely social, long-lived mammal-the Egyptian fruit bat. We monitored behavioral and physiological responses using an arsenal of methods, including onboard GPS to track foraging, acceleration sensors to monitor movement, infrared video to record social behavior, and blood samples to measure immune markers. Sick-like (immune-challenged) bats exhibited an increased immune response, as well as classic illness symptoms, including fever, weight loss, anorexia, and lethargy. Notably, the bats also exhibited behaviors that would reduce pathogen transfer. They perched alone and appeared to voluntarily isolate themselves from the group by leaving the social cluster, which is extremely atypical for this species. The sick-like individuals in the open colony ceased foraging outdoors for at least two nights, thus reducing transmission to neighboring colonies. Together, these sickness behaviors demonstrate a strong, integrative immune response that promotes recovery of infected individuals while reducing pathogen transmission inside and outside the roost, including spillover events to other species, such as humans.

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Section: Resultsmentioning

confidence: 99%

Sick bats stay home alone: fruit bats practice social distancing when faced with an immunological challenge

Moreno

Weinberg

Harten

et al. 2021

Annals of the New York Academy of Sciences

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“…Investigation, whether invasive or non-invasive, is stressful for the bats. A study investigating the stress-induced hypothermia (SIH) of silver-haired bats found that SIH is effected by capture and handling of the bats [ 231 ]. Following both the episodic shedding hypothesis and the transient epidemics hypothesis, it is assumed that for Pteropid bats stress can result in higher virus-shedding rates, as was already shown for Hendra virus and Nipah virus [ 232 , 233 , 234 , 235 ].…”

Section: Risk Factorsmentioning

confidence: 99%

Update on Potentially Zoonotic Viruses of European Bats

2021

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Bats have been increasingly gaining attention as potential reservoir hosts of some of the most virulent viruses known. Numerous review articles summarize bats as potential reservoir hosts of human-pathogenic zoonotic viruses. For European bats, just one review article is available that we published in 2014. The present review provides an update on the earlier article and summarizes the most important viruses found in European bats and their possible implications for Public Health. We identify the research gaps and recommend monitoring of these viruses.

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“…For both rounds, the bats were handled five times, consisting of four time points for data collection (pre-injection, 12, 24, and 48 hour post-injection) and the injection time. In order to avoid confounding effects from circadian changes in body temperature, as known for this species 40 we challenged each one of the rounds in a different part of the day; the first group at night, and the second in the morning. For the first experiment, these times were as follows: preinjection between 11:30-14:00, injection with LPS or PBS at 21:00-22:30, 12h between 10:00-12:00, 24h post injection at 22:00-00:00, and 48h post injection at 22:00-00:00.…”

mentioning

confidence: 99%

Sick Bats Stay Home Alone: Social distancing during the acute phase response in Egyptian fruit bats (Rousettus aegyptiacus)

Moreno

Weinberg

Harten

et al. 2020

Preprint

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AbstractAlong with its many advantages, social roosting imposes a major risk of pathogen transmission. How social animals, and especially free-ranging mammals, reduce this risk is poorly documented. We used lipopolysaccharide injection to imitate bacterial sickness in both a captive and a free-ranging colony of an extremely social mammal – the Egyptian fruit bat. We monitored behavioral and physiological responses using an arsenal of methods, including on-board GPS and acceleration, video, temperature and weight measurements, and blood samples. Sick-like bats exhibited an increased immune response, as well as classical illness symptoms including fever, weight loss, anorexia, and lethargy. Notably, they also isolated themselves from the group by leaving the social cluster and avoiding contact. Free-ranging individuals ceased foraging outdoors for at least two nights. Together, these sickness behaviors demonstrate a strong, integrative immune response which protects both individuals and their group members from transmission of pathogens.

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Stress-induced changes in body temperature of silver-haired bats (Lasionycteris noctivagans)

Cited by 9 publications

References 34 publications

Sick bats stay home alone: fruit bats practice social distancing when faced with an immunological challenge

Sick bats stay home alone: fruit bats practice social distancing when faced with an immunological challenge

Update on Potentially Zoonotic Viruses of European Bats

Sick Bats Stay Home Alone: Social distancing during the acute phase response in Egyptian fruit bats (Rousettus aegyptiacus)

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