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Journal articles on the topic 'Grey mouse lemur (Microcebus murinus)'

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Published: 4 June 2021

Last updated: 11 February 2022

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1

Liptovszky, Mátyás, Edina Perge, Viktor Molnár, and Endre Sós. "Osteoblastic osteosarcoma in a Grey Mouse Lemur (Microcebus murinus) — Short communication." Acta Veterinaria Hungarica 59, no. 4 (December 1, 2011): 433–37. http://dx.doi.org/10.1556/avet.2011.030.

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The Grey Mouse Lemur (Microcebus murinus) is a nocturnal lemur species that lives only in Madagascar. It is one of the most abundant lemur species and its native populations are not endangered, but animals belonging to this species are rarely exhibited in zoos. While tumours are quite frequently described in other primates, there are very few publications about neoplasia in lemurs. In this case report we describe a mandibular osteoblastic osteosarcoma in a Grey Mouse Lemur (Microcebus murinus). To the best of the authors’ knowledge, this is the first scientific article describing osteosarcoma in a prosimian and also reporting a tumour in the mandible in this taxon.

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2

Lührs, Mia-Lana, Melanie Dammhahn, Peter M. Kappeler, and Claudia Fichtel. "Spatial memory in the grey mouse lemur (Microcebus murinus)." Animal Cognition 12, no. 4 (March 5, 2009): 599–609. http://dx.doi.org/10.1007/s10071-009-0219-y.

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3

Bons, N., S. Silhol, V. Barbié, N. Mestre-Francés, and D. Albe-Fessard. "A stereotaxic atlas of the grey lesser mouse lemur brain (Microcebus murinus)." Brain Research Bulletin 46, no. 1-2 (May 1998): 1–173. http://dx.doi.org/10.1016/s0361-9230(97)00458-9.

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4

Schneider, Nicole, Lounès Chikhi, Mathias Currat, and Ute Radespiel. "Signals of recent spatial expansions in the grey mouse lemur (Microcebus murinus)." BMC Evolutionary Biology 10, no. 1 (2010): 105. http://dx.doi.org/10.1186/1471-2148-10-105.

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5

Rahlfs, Moritz, and Claudia Fichtel. "Anti-Predator Behaviour in a Nocturnal Primate, the Grey Mouse Lemur (Microcebus murinus)." Ethology 116, no. 5 (May 2010): 429–39. http://dx.doi.org/10.1111/j.1439-0310.2010.01756.x.

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6

Radespiel, Ute. "Sociality in the gray mouse lemur (Microcebus murinus) in northwestern Madagascar." American Journal of Primatology 51, no. 1 (May 2000): 21–40. http://dx.doi.org/10.1002/(sici)1098-2345(200005)51:1<21::aid-ajp3>3.0.co;2-c.

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7

Lecompte, Emilie, Brigitte Crouau-Roy, Fabienne Aujard, Hélène Holota, and Jérôme Murienne. "Complete mitochondrial genome of the gray mouse lemur, Microcebus murinus (Primates, Cheirogaleidae)." Mitochondrial DNA Part A 27, no. 5 (August 14, 2015): 3514–16. http://dx.doi.org/10.3109/19401736.2015.1074196.

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8

Génin, F., M. Nibbelink, M. Galand, M. Perret, and L. Ambid. "Brown fat and nonshivering thermogenesis in the gray mouse lemur (Microcebus murinus)." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 284, no. 3 (March 1, 2003): R811—R818. http://dx.doi.org/10.1152/ajpregu.00525.2002.

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The gray mouse lemur Microcebus murinus is a rare example of a primate exhibiting daily torpor. In captive animals, we examined the metabolic rate during arousal from torpor and showed that this process involved nonshivering thermogenesis (NST). Under thermoneutrality (28°C), warming-up from daily torpor (body temperature <33°C) involved a rapid (<5 min) increase of O2 consumption that was proportional to the depth of torpor ( n = 8). The injection of a β-adrenergic agonist (isoproterenol) known to elicit NST induced a dose-dependent increase in metabolic rate ( n = 8). Moreover, maximum thermogenesis was increased by cold exposure. For the first time in this species, anatomic and histological examination using an antibody against uncoupling protein (UCP) specifically demonstrated the presence of brown fat. With the use of Western blotting with the same antibody, we showed a likely increase in UCP expression after cold exposure, suggesting that NST is also used to survive low ambient temperatures in this tropical species.

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9

HÄMÄLÄINEN, ANNI. "A Case of Adult Cannibalism in the Gray Mouse Lemur, Microcebus murinus." American Journal of Primatology 74, no. 9 (May 23, 2012): 783–87. http://dx.doi.org/10.1002/ajp.22034.

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10

Alleaume, Charline, Meryem El Mrini, Eve Laloy, Julia Marchal, Fabienne Aujard, and Sabine Chahory. "Scleral and corneal xanthomatous inflammation in a gray mouse lemur (Microcebus murinus)." Veterinary Ophthalmology 20, no. 2 (March 31, 2016): 177–80. http://dx.doi.org/10.1111/vop.12374.

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11

Cichon, Nicole, Karen Lampe, Felix Bremmer, Tamara Becker, and Kerstin Mätz-Rensing. "Unique case of granulomatous arteritis in a grey mouse lemur (Microcebus murinus) – first case description." Primate Biology 4, no. 1 (April 3, 2017): 71–75. http://dx.doi.org/10.5194/pb-4-71-2017.

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Abstract. Overall, diseases of the vascular system are rarely observed entities among nonhuman primates that are commonly associated with systemic infections, septicemia or bacteremia. Rhesus monkeys infected with simian immunodeficiency virus (SIV) may develop a chronic occlusive arteriopathy of unknown etiology in late stages of the disease. This SIV associated arteriopathy is the only well-known specific vascular entity described in nonhuman primates. We herein report a unique case of granulomatous arteritis in a grey mouse lemur affecting multiple organs, which is not comparable to other disease entities formerly described in nonhuman primates. The features of the entity most closely resemble disseminated visceral giant cell arteritis in humans. A concise description of the disease is given, and the differential diagnoses are discussed. An idiopathic pathogenesis is suspected.

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12

Schmid, J., and J. R. Speakman. "Daily energy expenditure of the grey mouse lemur ( Microcebus murinus ): a small primate that uses torpor." Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology 170, no. 8 (December 12, 2000): 633–41. http://dx.doi.org/10.1007/s003600000146.

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13

Averdam, Anne, Christiane Kuschal, Nicole Otto, Nico Westphal, Christian Roos, Richard Reinhardt, and Lutz Walter. "Sequence analysis of the grey mouse lemur (Microcebus murinus) MHC class II DQ and DR region." Immunogenetics 63, no. 2 (October 12, 2010): 85–93. http://dx.doi.org/10.1007/s00251-010-0487-3.

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14

Radespiel, Ute, Valentina Dal Secco, Cord Drögemüller, Pia Braune, Elisabeth Labes, and Elke Zimmermann. "Sexual selection, multiple mating and paternity in grey mouse lemurs, Microcebus murinus." Animal Behaviour 63, no. 2 (February 2002): 259–68. http://dx.doi.org/10.1006/anbe.2001.1924.

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15

Picq, Jean-Luc. "Radial maze performance in young and aged grey mouse lemurs (Microcebus murinus)." Primates 34, no. 2 (April 1993): 223–26. http://dx.doi.org/10.1007/bf02381394.

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16

Schmid, Jutta. "Torpor in the tropics: the case of the gray mouse lemur (Microcebus murinus)." Basic and Applied Ecology 1, no. 2 (January 2000): 133–39. http://dx.doi.org/10.1078/1439-1791-00019.

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17

Boettcher, Marissa L., Kaitlyn C. Leonard, Edwin Dickinson, Fabienne Aujard, Anthony Herrel, and Adam Hartstone‐Rose. "The Forearm Musculature of the Gray Mouse Lemur ( Microcebus murinus ): An Ontogenetic Study." Anatomical Record 303, no. 5 (October 9, 2019): 1354–63. http://dx.doi.org/10.1002/ar.24258.

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18

Kessler, Sharon E., Ute Radespiel, Alida I. F. Hasiniaina, Leanne T. Nash, and Elke Zimmermann. "Does the grey mouse lemur use agonistic vocalisations to recognise kin?" Contributions to Zoology 87, no. 4 (November 30, 2018): 261–74. http://dx.doi.org/10.1163/18759866-08704003.

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Frequent kin-biased coalitionary behaviour is a hallmark of mammalian social complexity. Furthermore, selection to understand complex social dynamics is believed to underlie the co-evolution of social complexity and large brains. Vocalisations have been shown to be an important mechanism with which large-brained mammals living in complex social groups recognise and recruit kin for coalitionary support during agonistic conflicts. We test whether kin recognition via agonistic calls occurs in a small-brained solitary foraging primate living in a dispersed social network, the grey mouse lemur (Microcebus murinus, Miller JF, 1777). As mouse lemurs are frequent models for ancestral solitary foraging mammals, this study examines whether kin recognition via agonistic calls could be the foundation from which more complex, kin-based coalitionary behaviour evolved. We test whether female wild mouse lemurs in Ankarafantsika National Park, Madagascar, react differently to agonistic calls from kin and nonkin and to calls from familiar and unfamiliar individuals during playback experiments. Subjects showed no significant differences in reactions to the different stimuli; thus they did not react differently based upon kinship or familiarity. Results suggest that this solitary foraging species does not use agonistic calls to recognise kin and monitor agonistic interactions involving kin, unlike several species of Old World monkeys and hyenas. Thus, kin recognition via agonistic calls may have evolved independently in these lineages in parallel with greater social complexity and frequent coalitionary behaviour.

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19

Zablocki-Thomas, Pauline B., Anthony Herrel, Caitlin J. Karanewsky, Fabienne Aujard, and Emmanuelle Pouydebat. "Heritability and genetic correlations of personality, life history and morphology in the grey mouse lemur ( Microcebus murinus )." Royal Society Open Science 6, no. 10 (October 2019): 190632. http://dx.doi.org/10.1098/rsos.190632.

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The recent interest in animal personality has sparked a number of studies on the heritability of personality traits. Yet, how the sources variance these traits can be decomposed remains unclear. Moreover, whether genetic correlations with life-history traits, personality traits and other phenotypic traits exist as predicted by the pace-of-life syndrome hypothesis remains poorly understood. Our aim was to compare the heritability of personality, life-history and morphological traits and their potential genetic correlations in a small primate ( Microcebus murinus ). We performed an animal model analysis on six traits measured in a large sample of captive mouse lemurs ( N = 486). We chose two personality traits, two life-history traits and two morphological traits to (i) estimate the genetic and/or environmental contribution to their variance, and (ii) test for genetic correlations between these traits. We found modest narrow-sense heritability for personality traits, morphological traits and life-history traits. Other factors including maternal effects also influence the sources of variation in life-history and morphological traits. We found genetic correlations between emergence latency on the one hand and radius length and growth rate on the other hand. Emergence latency was also genetically correlated with birth weight and was influenced by maternal identity. These results provide insights into the influence of genes and maternal effects on the partitioning of sources of variation in personality, life-history and morphological traits in a captive primate model and suggest that the pace-of-life syndrome may be partly explained by genetic trait covariances.

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20

Radespiel, Ute, Heike Lutermann, Barthel Schmelting, Michael W. Bruford, and Elke Zimmermann. "Patterns and dynamics of sex-biased dispersal in a nocturnal primate, the grey mouse lemur, Microcebus murinus." Animal Behaviour 65, no. 4 (April 2003): 709–19. http://dx.doi.org/10.1006/anbe.2003.2121.

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21

Terrien, J., M. Gaudubois, D. Champeval, V. Zaninotto, L. Roger, J. F. Riou, and F. Aujard. "Metabolic and genomic adaptations to winter fattening in a primate species, the grey mouse lemur (Microcebus murinus)." International Journal of Obesity 42, no. 2 (August 14, 2017): 221–30. http://dx.doi.org/10.1038/ijo.2017.195.

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22

Hülskötter, Kirsten, Daniel Schmidtke, Marko Dubicanac, Ute Siesenop, Elke Zimmermann, Ingo Gerhauser, Wolfgang Baumgärtner, and Vanessa Herder. "Spontaneous listeriosis in grey mouse lemurs (Microcebus murinus), but not in Goodman’s mouse lemurs (Microcebus lehilahytsara) of the same colony." Veterinary Microbiology 208 (September 2017): 94–96. http://dx.doi.org/10.1016/j.vetmic.2017.07.023.

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23

Giroud, Sylvain, Stéphane Blanc, Fabienne Aujard, Frédéric Bertrand, Caroline Gilbert, and Martine Perret. "Chronic food shortage and seasonal modulations of daily torpor and locomotor activity in the grey mouse lemur (Microcebus murinus)." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 294, no. 6 (June 2008): R1958—R1967. http://dx.doi.org/10.1152/ajpregu.00794.2007.

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The extent to which seasonal plasticity in torpor displayed by one of the smallest Malagasy primates ( Microcebus murinus) will help survival in the context of ongoing global change-induced chronic food shortage, is unknown. Body temperature (Tb) and locomotor activity were measured by telemetry in short- (SD, winter-acclimated) and long-days (LD, summer-acclimated) males ( n = 24) during an experimental 35-day calorie restriction of 40 or 80%. Under SD exposure, regardless of calorie restriction intensity, mouse lemurs immediately increased torpor depth and duration by 4.6-fold, and showed greater phase-advanced entry into torpor (2.4-fold). Tb adjustments were efficient under 40% calorie restriction to maintain body mass, whereas they did not prevent a 0.71 ± 0.11 g/day mass loss during 80% calorie restriction. The 40% food-deprived LD animals combined an early shallow deepening of torpor (1°C) and a late 18% decrease in locomotor activity, resulting in a moderate 6% mass loss. After 15 days of 80% calorie restriction, LD animals exhibited a SD phenotype by increasing their torpor duration and phase-advancing the entry of torpor (16 min/day). Those adjustments had no impact on mass loss (0.93 ± 0.07 g/day) as locomotor activity increased four-fold. Daily torpor allows M. murinus to face moderate food shortage whatever the photoperiod but poorly mitigates energy imbalance during severe food deprivation, especially under LD exposure. Although the behavioral thermoregulation role warrants further investigation in energy savings, M. murinus survival would be impaired during long-term food shortage in summer.

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24

Perret, Martine. "Litter sex composition affects first reproduction in female grey mouse lemurs (Microcebus murinus)." Physiology & Behavior 208 (September 2019): 112575. http://dx.doi.org/10.1016/j.physbeh.2019.112575.

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25

FREDSTED, T., C. PERTOLDI, M. H. SCHIERUP, and P. M. KAPPELER. "Microsatellite analyses reveal fine-scale genetic structure in grey mouse lemurs (Microcebus murinus)." Molecular Ecology 14, no. 8 (July 2005): 2363–72. http://dx.doi.org/10.1111/j.1365-294x.2005.02596.x.

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26

Terrien, J., L. Ambid, M. Nibbelink, A. Saint-Charles, and F. Aujard. "Non-shivering thermogenesis activation and maintenance in the aging gray mouse lemur (Microcebus murinus)." Experimental Gerontology 45, no. 6 (June 2010): 442–48. http://dx.doi.org/10.1016/j.exger.2010.03.013.

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27

Zimmermann, E. "Castration affects the emission of an ultrasonic vocalization in a nocturnal primate, the grey mouse lemur (Microcebus murinus)." Physiology & Behavior 60, no. 3 (September 1996): 693–97. http://dx.doi.org/10.1016/0031-9384(96)81674-x.

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28

Schopf, Christian, Sabine Schmidt, and Elke Zimmermann. "Moderate evidence for a Lombard effect in a phylogenetically basal primate." PeerJ 4 (August 16, 2016): e2328. http://dx.doi.org/10.7717/peerj.2328.

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When exposed to enhanced background noise, humans avoid signal masking by increasing the amplitude of the voice, a phenomenon termed the Lombard effect. This auditory feedback-mediated voice control has also been found in monkeys, bats, cetaceans, fish and some frogs and birds. We studied the Lombard effect for the first time in a phylogenetically basal primate, the grey mouse lemur,Microcebus murinus. When background noise was increased, mouse lemurs were able to raise the amplitude of the voice, comparable to monkeys, but they did not show this effect consistently across context/individuals. The Lombard effect, even if representing a generic vocal communication system property of mammals, may thus be affected by more complex mechanisms. The present findings emphasize an effect of context, and individual, and the need for further standardized approaches to disentangle the multiple system properties of mammalian vocal communication, important for understanding the evolution of the unique human faculty of speech and language.

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29

Henke-von der Malsburg, Johanna, and Claudia Fichtel. "Are generalists more innovative than specialists? A comparison of innovative abilities in two wild sympatric mouse lemur species." Royal Society Open Science 5, no. 8 (August 2018): 180480. http://dx.doi.org/10.1098/rsos.180480.

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The propensity to flexibly innovate behavioural variants might advantage animals when dealing with novel or modified ecological or social challenges. Interspecific innovative abilities can be predicted by the degree of ecological generalism and intraspecific variation is predicted by personality traits. To examine the effects of these factors on innovation, we compared problem-solving abilities in the generalist grey mouse lemurs ( Microcebus murinus ) and the more specialized Madame Berthe's mouse lemurs ( Microcebus berthae ) in western Madagascar. We examined personality traits by testing 54 individuals in open field and novel object tests, and we assessed problem-solving abilities by presenting an artificial feeding-box that could be opened by three different techniques. The first two techniques presented novel problems and the third technique a modified problem to the more complex second novel problem. In both species, motivation, early success and better inhibitory control characterized innovators and predicted superior problem-solving performance. Although both species performed equally well in finding a solution to the novel problems, the specialist species was more efficient in finding a novel solution to a familiar problem. Since the ecological specialist also exhibited more inhibitory control in this task than the generalist, we propose that specialists may dispose of more efficient problem-solving behaviour.

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30

Piep, Marcus, Ute Radespiel, Elke Zimmermann, Sabine Schmidt, and Björn M. Siemers. "The sensory basis of prey detection in captive-born grey mouse lemurs, Microcebus murinus." Animal Behaviour 75, no. 3 (March 2008): 871–78. http://dx.doi.org/10.1016/j.anbehav.2007.07.008.

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31

Schmelting, Barthel, Elke Zimmermann, Olaf Berke, Michael W. Bruford, and Ute Radespiel. "Experience-dependent recapture rates and reproductive success in male grey mouse lemurs (Microcebus murinus)." American Journal of Physical Anthropology 133, no. 1 (May 2007): 743–52. http://dx.doi.org/10.1002/ajpa.20566.

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32

Raharivololona, BM, and JU Ganzhorn. "Seasonal variations in gastrointestinal parasites excreted by the gray mouse lemur Microcebus murinus in Madagascar." Endangered Species Research 11 (April 1, 2010): 113–22. http://dx.doi.org/10.3354/esr00255.

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33

Schilling, Alain, Vicktoria Danilova, and Goran Hellekant. "Behavioral study in the gray mouse lemur (Microcebus murinus) using compounds considered sweet by humans." American Journal of Primatology 62, no. 1 (January 2004): 43–48. http://dx.doi.org/10.1002/ajp.20004.

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34

Joly, Marine, Sandra Ammersdörfer, Daniel Schmidtke, and Elke Zimmermann. "Touchscreen-Based Cognitive Tasks Reveal Age-Related Impairment in a Primate Aging Model, the Grey Mouse Lemur (Microcebus murinus)." PLoS ONE 9, no. 10 (October 9, 2014): e109393. http://dx.doi.org/10.1371/journal.pone.0109393.

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35

Marchal, Julia, Olène Dorieux, Laurine Haro, Fabienne Aujard, and Martine Perret. "Characterization of blood biochemical markers during aging in the Grey Mouse Lemur (Microcebus murinus): impact of gender and season." BMC Veterinary Research 8, no. 1 (2012): 211. http://dx.doi.org/10.1186/1746-6148-8-211.

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36

Hafen, T., H. Neveu, Y. Rumpler, I. Wilden, and E. Zimmermann. "Acoustically Dimorphic Advertisement Calls Separate Morphologically and Genetically Homogenous Populations of the Grey Mouse Lemur (Microcebus murinus)." Folia Primatologica 69, no. 1 (1998): 342–56. http://dx.doi.org/10.1159/000052723.

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37

Radespiel, Ute, Zübeyde Sarikaya, Elke Zimmermann, and Michael Bruford. "Sociogenetic structure in a free-living nocturnal primate population: sex-specific differences in the grey mouse lemur ( Microcebus murinus )." Behavioral Ecology and Sociobiology 50, no. 6 (November 1, 2001): 493–502. http://dx.doi.org/10.1007/s002650100402.

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38

Pifferi, Fabien, Martine Perret, Philippe Guesnet, Fabienne Aujard, and Jean-Marc Alessandri. "Fatty Acid Composition of the Brain, Retina, Liver and Adipose Tissue of the Grey Mouse Lemur (Microcebus murinus, Primate)." Lipids 47, no. 8 (June 10, 2012): 793–801. http://dx.doi.org/10.1007/s11745-012-3686-x.

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39

Schliehe-Diecks, S., P. M. Kappeler, and R. Langrock. "On the application of mixed hidden Markov models to multiple behavioural time series." Interface Focus 2, no. 2 (February 2012): 180–89. http://dx.doi.org/10.1098/rsfs.2011.0077.

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Analysing behavioural sequences and quantifying the likelihood of occurrences of different behaviours is a difficult task as motivational states are not observable. Furthermore, it is ecologically highly relevant and yet more complicated to scale an appropriate model for one individual up to the population level. In this manuscript (mixed) hidden Markov models (HMMs) are used to model the feeding behaviour of 54 subadult grey mouse lemurs ( Microcebus murinus ), small nocturnal primates endemic to Madagascar that forage solitarily. Our primary aim is to introduce ecologists and other users to various HMM methods, many of which have been developed only recently, and which in this form have not previously been synthesized in the ecological literature. Our specific application of mixed HMMs aims at gaining a better understanding of mouse lemur behaviour, in particular concerning sex-specific differences. The model we consider incorporates random effects for accommodating heterogeneity across animals, i.e. accounts for different personalities of the animals. Additional subject- and time-specific covariates in the model describe the influence of sex, body mass and time of night.

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40

Lutermann, Heike, Barthel Schmelting, Ute Radespiel, Petra Ehresmann, and Elke Zimmermann. "The role of survival for the evolution of female philopatry in a solitary forager, the grey mouse lemur ( Microcebus murinus )." Proceedings of the Royal Society B: Biological Sciences 273, no. 1600 (July 5, 2006): 2527–33. http://dx.doi.org/10.1098/rspb.2006.3603.

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It is widely accepted that natal philopatry is a prerequisite for the evolution of sociality. The life-history hypothesis maintains that longevity of adults results in extended territory tenure and thus limits breeding vacancies for offspring, which makes natal philopatry more likely. Here, we tested the importance of longevity for natal philopatry in females of a basal primate, the grey mouse lemur ( Microcebus murinus ). This species is regarded as being solitary due to its foraging habits but while males disperse, female offspring in this species forgo dispersal and form long-term sleeping groups with their mothers. We tested whether high adult survival could be a cause for natal philopatry of female offspring. In addition, we assessed costs and benefits associated with space sharing between mothers and daughters and whether mothers actively increase survival of daughters by beqeauthal of territories, information transfer about resources or thermoregulation. Contrary to our predictions, adult females had low-survival rates. Space sharing appeared to improve survival of both, mothers and daughters. This could be a result of information transfer about sleeping sites and thermoregulatory benefits. Our results cast doubt on the idea that longevity predisposes species for social traits and provide support for benefits of philopatry.

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41

Scheumann, Marina, Elke Zimmermann, and Guntram Deichsel. "Context-specific calls signal infants' needs in a strepsirrhine primate, the gray mouse lemur (Microcebus murinus)." Developmental Psychobiology 49, no. 7 (2007): 708–18. http://dx.doi.org/10.1002/dev.20234.

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42

Wimmer, Barbara, Diethard Tautz, and Peter Kappeler. "The genetic population structure of the gray mouse lemur ( Microcebus murinus), a basal primate from Madagascar." Behavioral Ecology and Sociobiology 52, no. 2 (July 1, 2002): 166–75. http://dx.doi.org/10.1007/s00265-002-0497-8.

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43

Tessier, Shannon N., Barbara A. Katzenback, Fabien Pifferi, Martine Perret, and Kenneth B. Storey. "Cytokine and Antioxidant Regulation in the Intestine of the Gray Mouse Lemur (Microcebus murinus) During Torpor." Genomics, Proteomics & Bioinformatics 13, no. 2 (April 2015): 127–35. http://dx.doi.org/10.1016/j.gpb.2015.03.005.

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44

Schmid, J. "Daily torpor in the gray mouse lemur ( Microcebus murinus ) in Madagascar: energetic consequences and biological significance." Oecologia 123, no. 2 (May 3, 2000): 175–83. http://dx.doi.org/10.1007/s004420051003.

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45

Génin, F., and M. Perret. "Daily hypothermia in captive grey mouse lemurs (Microcebus murinus): effects of photoperiod and food restriction." Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology 136, no. 1 (September 2003): 71–81. http://dx.doi.org/10.1016/s1096-4959(03)00172-6.

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46

Radespiel, U., S. M. Funk, E. Zimmermann, and M. W. Bruford. "Isolation and characterization of microsatellite loci in the grey mouse lemur (Microcebus murinus ) and their amplification in the family Cheirogaleidae." Molecular Ecology Notes 1, no. 1-2 (March 2001): 16–18. http://dx.doi.org/10.1046/j.1471-8278.2000.0007.x.

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47

Hohenbrink, Philipp, Nicholas I. Mundy, Elke Zimmermann, and Ute Radespiel. "First evidence for functional vomeronasal 2 receptor genes in primates." Biology Letters 9, no. 1 (February 23, 2013): 20121006. http://dx.doi.org/10.1098/rsbl.2012.1006.

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Two classes of vomeronasal receptor genes, V1R and V2R , occur in vertebrates. Whereas, V1R loci are found in a wide variety of mammals, including primates, intact V2R genes have thus far only been described in rodents and marsupials. In primates, the V2R repertoire has been considered degenerate. Here, we identify for the first time two intact V2R loci in a strepsirrhine primate, the grey mouse lemur ( Microcebus murinus ), and demonstrate their expression in the vomeronasal organ. Putatively functional orthologues are present in two other strepsirrhines, whereas, both loci are pseudogenes in a range of anthropoid species. The functional significance of the loci is unknown, but positive selection on one of them is consistent with an adaptive role in pheromone detection. Finally, conservation of V2R loci in strepsirrhines is notable, given their high diversity and role in MUP and MHC detection in rodents.

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Casey, Kerriann M., Caitlin J. Karanewsky, Jozeph L. Pendleton, Mark R. Krasnow, and Megan A. Albertelli. "Fibrous Osteodystrophy, Chronic Renal Disease, and Uterine Adenocarcinoma in Aged Gray Mouse Lemurs (Microcebus murinus)." Comparative Medicine 71, no. 3 (June 1, 2021): 256–66. http://dx.doi.org/10.30802/aalas-cm-20-000078.

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The gray mouse lemur (Microcebus murinus, GML) is a nocturnal, arboreal, prosimian primate that is native to Madagascar. Captive breeding colonies of GMLs have been established primarily for noninvasive studies on questions related to circadian rhythms and metabolism. GMLs are increasingly considered to be a strong translational model for neurocognitive aging due to overlapping histopathologic features shared with aged humans. However, little information is available describing the clinical presentations, naturally occurring diseases, and histopathology of aged GMLs. In our colony, a 9 y-old, male, GML was euthanized after sudden onset of weakness, lethargy, and tibial fracture. Evaluation of this animal revealed widespread fibrous osteodystrophy (FOD) of the mandible, maxilla, cranium, appendicular, and vertebral bones. FOD and systemic metastatic mineralization were attributed to underlying chronic renal disease. Findings in this GML prompted periodic colony-wide serum biochemical screenings for azotemia and electrolyte abnormalities. Subsequently, 3 additional GMLs (2 females and 1 male) were euthanized due to varying clinical and serum biochemical presentations. Common to all 4 animals were FOD, chronic renal disease, uterine adenocarcinoma (females only), cataracts, and osteoarthritis. This case study highlights the concurrent clinical and histopathologic abnormalities that are relevant to use of GMLs in the expanding field of aging research.

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Terrien, J., P. Zizzari, M. T. Bluet-Pajot, P. Y. Henry, M. Perret, J. Epelbaum, and F. Aujard. "Effects of age on thermoregulatory responses during cold exposure in a nonhuman primate, Microcebus murinus." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 295, no. 2 (August 2008): R696—R703. http://dx.doi.org/10.1152/ajpregu.00629.2007.

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Cold resistance appears altered with aging. Among existing hypotheses, the impaired capacity in response to cold could be related to an altered regulation of plasma IGF-1 concentration. The combined effects of age and cold exposure were studied in a short-living primate, the gray mouse lemur ( Microcebus murinus), which adjusts its energy balance using a daily torpor phase, to avoid high energy cost of normothermia maintenance. Changes in body mass, core temperature, locomotor activity, and caloric intake were monitored under 9-day exposures to 25°C and 12°C in captive animals in winter conditions. Short-term (after 2 days) and long-term (after 9 days) cold-induced changes in IGF-1 levels were also evaluated. In thermoneutral conditions (25°C), general characteristics of the daily rhythm of core temperature were preserved with age. At 12°C, age-related changes were mainly characterized by a deeper hypothermia and an increased frequency of torpor phases, associated with a loss of body mass. A short-term cold-induced decrease in plasma IGF-1 levels was observed. IGF-1 levels returned to basal values after 9 days of cold exposure. No significant effect of age could be evidenced on IGF-1 response. However, IGF-1 levels of cold-exposed aged animals were negatively correlated with the frequency of daily torpor. Responses exhibited by aged mouse lemurs exposed to cold revealed difficulties in the maintenance of normothermia and energy balance and might involve modulations of IGF-1 levels.

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Schmid, J. "Sex-Specific Differences in Activity Patterns and Fattening in the Gray Mouse Lemur (Microcebus murinus) in Madagascar." Journal of Mammalogy 80, no. 3 (August 27, 1999): 749–57. http://dx.doi.org/10.2307/1383244.

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