Myotis lucifugus

Fenton, M. Brock; Barclay, Robert M. R.

doi:10.2307/3503792

Cited by 191 publications

(180 citation statements)

References 78 publications

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“…The little brown bat (Myotis lucifugus LeConte) is insectivorous (Fenton and Barclay, 1980). Both rodents of this study (white-footed mouse, Peromyscus leucopus Rafinesque; and northern grasshopper mouse, Onychomys leucogaster Wied-Neuwied) are somewhat omnivorous, but specialize on protein-rich diets more than many rodents; grasshopper mice in particular are unique amongst North American rodents in having a diet composed primarily of arthropods and vertebrates (Martin and Nelson, 1951;McCarty, 1978;Lackey et al, 1985).…”

Section: Animalsmentioning

confidence: 99%

Paracellular nutrient absorption is higher in bats than rodents: integrating from intact animals to the molecular level

Price

Rott

Caviedes‐Vidal

et al. 2014

Journal of Experimental Biology

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Flying vertebrates have been hypothesized to rely heavily on paracellular absorption of nutrients to compensate for having smaller intestines than non-flyers. We tested this hypothesis in an insectivorous bat (Myotis lucifugus) and two insect-eating rodents (Onychomys leucogaster and Peromyscus leucopus). In intact animals, the fractional absorption of orally dosed L-arabinose (M r 150) was 82% in M. lucifugus, which was more than twice that of the rodents. Absorption of creatinine (M r 113) was greater than 50% for all species and did not differ between M. lucifugus and the rodents. We also conducted intestinal luminal perfusions on anesthetized animals. Absorption of L-arabinose per nominal surface area in M. lucifugus was nearly double that of the rodents, while absorption of creatinine was not different among species. Using an everted sleeve preparation, we demonstrated that high concentrations of L-arabinose and creatinine did not inhibit their own uptake, validating their use as passive, paracellular probes. Histological measurements indicated that M. lucifugus has more cells, and presumably more tight junctions, per nominal surface area than P. leucopus. This seems unlikely to explain entirely the higher absorption of L-arabinose in M. lucifugus during perfusions, because L-arabinose absorption normalized to the number of enterocytes was still double that of P. leucopus. As an alternative, we investigated tight junction gene expression. M. lucifugus had higher expression of claudin-1 and claudin-15, and lower expression of claudin-2 relative to P. leucopus. Expression of claudin-7 and occludin did not differ among species. Taken together, our results support the hypothesis that bats have evolved higher paracellular nutrient absorption than non-flying animals, and that this phenomenon might be driven by both histological characteristics and differences in tight junction gene expression.

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Section: Animalsmentioning

confidence: 99%

Paracellular nutrient absorption is higher in bats than rodents: integrating from intact animals to the molecular level

Price

Rott

Caviedes‐Vidal

et al. 2014

Journal of Experimental Biology

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“…For example, they sampled M. thysanodes and M. nattereri, which represent the Nearctic and Palearctic members of fringed bats, respectively, and sometimes are recognized in a distinct subgenus, Isotus (Tate, 1941a;Corbet and Hill, 1991). Ruedi and Mayer (2001) also sampled M. lucifugus (Nearctic) and M. daubentonii (Palearctic), two small species with short ears that typically forage over water surfaces, morphologic and ecologic equivalents (Fenton and Barclay, 1980;Jones and Rayner, 1988). All of their analyses contradicted monophyly of Isotus and close affinities between M. lucifugus and M. daubentonii by placing the two species of each pair in widely divergent clades, suggesting that remarkable similarities in morphology and ecology are the result of convergent evolution.…”

Section: Subfamily Myotinaementioning

confidence: 99%

Molecular Phylogenetics of the Chiropteran Family Vespertilionidae

Hoofer

Bussche

2003

Acta Chiropterologica

189

168

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“…Myotis lucifugus and M. leibii take airborne prey and use echolocation calls dominated by broadband frequency modulated components. Both species are generalists, foraging in open areas (spaces over water) or in more confined spaces (within wooded areas) usually taking flying prey (Fenton and Barclay, 1980;Best and Jennings, 1997). Differences in echolocation calls according to settings have consequences for those who identify bats by their echolocation calls and include in their collections of reference calls recordings from bats flying indoors (e.g., Barclay, 1983;Jones et al, 1993;O'Farrell and Miller, 1997;Rydell et al, 2002).…”

Section: Introductionmentioning

confidence: 99%