| pinna-rim skin folds narrow the sonar beam in the lesser false vampire bat (megaderma spasma). | false vampire bats (genus megaderma) employ active as well as passive biosonars. in the present work, the acoustic impact of a conspicuous feature of the animals' ear morphology, skin folds of the pinna rim linking the two pinnae at the midline, has been studied using a numerical approach. automated methods have been devised to measure the largest width of the beam patterns irrespective of beam orientation. a total of six pinna shapes from three individuals have been studied. for all these shape ... | 2009 | 20000945 |
| highly rearranged mitochondrial genome in nycteria parasites (haemosporidia) from bats. | haemosporidia parasites have mostly and abundantly been described using mitochondrial genes, and in particular cytochrome b (cytb). failure to amplify the mitochondrial cytb gene of nycteria parasites isolated from nycteridae bats has been recently reported. bats are hosts to a diverse and profuse array of haemosporidia parasites that remain largely unstudied. there is a need to obtain more molecular data from chiropteran parasites. such data would help to better understand the evolutionary hist ... | 2016 | 27528689 |
| silent katydid females are at higher risk of bat predation than acoustically signalling katydid males. | males that produce conspicuous mate attraction signals are often at high risk of predation from eavesdropping predators. females of such species typically search for signalling males and their higher motility may also place them at risk. the relative predation risk faced by males and females in the context of mate-finding using long-distance signals has rarely been investigated. in this study, we show, using a combination of diet analysis and behavioural experiments, that katydid females, who do ... | 2015 | 25429019 |
| [new record of a bat species from china, megaderma spasma (linnaeus, 1758)]. | one male bat was collected in a cave in cuibi hill (n: 21 degree 53', e: 101 degree 18', h: 683 m a.s.l.), menglun town, mengla county, yunnan province, on november 26, 2006. this bat is of medium body size, with 60.7 mm forearm and 21.4 g body mass. its ears are large ovals and joined medially to the forehead at about 15% of the height of inner margin. the tragus of each ear is slender and distinctly bifid. the noseleaf is simple, and the posterior noseleaf is oval with obtuse tip and convex si ... | 2010 | 20672423 |
| first molecular investigation of haemosporidian parasites in thai bat species. | malaria parasites in the phylum apicomplexa (order: haemosporida) infect diverse vertebrates and invertebrate hosts. at least seven genera of haemosporidian parasites have been described to exclusively infect bats. most of these parasites remain enigmatic with a poorly known host range. here, we investigated 271 bats belonging to 21 species and seven families from six provinces of thailand. overall, 124 out of 271 bats (45.8%) were positive for haemosporidian parasites, while none had plasmodium ... | 2020 | 32904325 |
| prioritizing surveillance of nipah virus in india. | the 2018 outbreak of nipah virus in kerala, india, highlights the need for global surveillance of henipaviruses in bats, which are the reservoir hosts for this and other viruses. nipah virus, an emerging paramyxovirus in the genus henipavirus, causes severe disease and stuttering chains of transmission in humans and is considered a potential pandemic threat. in may 2018, an outbreak of nipah virus began in kerala, > 1800 km from the sites of previous outbreaks in eastern india in 2001 and 2007. ... | 2019 | 31246966 |