Aerial-hawking bats adjust their use of space to the lunar cycle

被引:43
作者
不详
机构
[1] Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, Berlin
[2] Freie Universität Berlin, Institut für Biologie, Takustr. 6, Berlin
[3] Büro für faunistisch-ökologische Fachgutachten, Goldsternweg 34, Berlin
[4] Natura Büro für zoologische und botanische Fachgutachten, Hans-Sachs-Str. 48, Schulzendorf
来源
MOVEMENT ECOLOGY | 2018年 / 6卷
关键词
Flight altitude; Forest structure; Habitat use; LiDAR; Moonlight; Nyctalus noctula; OWLS STRIX ALUCO; LONG-EARED OWLS; HABITAT USE; PREDATION RISK; FORAGING BEHAVIOR; INSECTIVOROUS BATS; NYCTALUS-NOCTULA; ACTIVITY PATTERNS; MYOTIS-LUCIFUGUS; HUNTING SUCCESS;
D O I
10.1186/s40462-018-0131-7
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Background: Animals change their habitat use in response to spatio-temporal fluctuation of resources. Some resources may vary periodically according to the moonphase. Yet it is poorly documented how animals, particularly nocturnal mammals, adjust their use of space in response to the moonphase. Here, we asked if an obligate nocturnal mammal, the aerial-hawking common noctule bat (Nyctalus noctula), adjusts its 3-dimensional flight behaviour and habitat use to the lunar period. Using miniaturized GPS loggers, we recorded 3-dimensional flight tracks of N. noctula and related these to a canopy height model derived from aerial laser scans to investigate whether bats adjust forest strata use to moonlight intensities. Results: Noctules frequently foraged above the canopy of coniferous forest at low moonlight intensities, but switched to using open grasslands and arable fields in nights with high moonlight intensities. During the few occasions when noctules used the forest during moonlit nights, they mostly restricted their use of space to flying below the canopy level. The median overall flight altitude of N. noctula equalled 13 +/- 16 m but reached up to 71 m above ground (97.5% quantile). Conclusions: Our findings argue against general lunar phobic behaviour of aerial-hawking bats. We suggest that the preferred use of open fields around full moon may be a strategy of noctules to increase the success of hunting airborne insects at night. Specifically, the adjustment in use of space may allow bats to hunt for insects that emerge and disperse over open fields during bright moonlight.
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页数:10
相关论文
共 77 条
  • [1] NIGHT ROOSTING AND THE NOCTURNAL TIME BUDGET OF THE LITTLE BROWN BAT, MYOTIS-LUCIFUGUS - EFFECTS OF REPRODUCTIVE STATUS, PREY DENSITY, AND ENVIRONMENTAL-CONDITIONS
    ANTHONY, ELP
    STACK, MH
    KUNZ, TH
    [J]. OECOLOGIA, 1981, 51 (02) : 151 - 156
  • [2] Aerial insectivorous bat activity in relation to moonlight intensity
    Appel, Giulliana
    Lopez-Baucells, Adria
    Magnusson, William Ernest
    Bobrowiec, Paulo Estefano D.
    [J]. MAMMALIAN BIOLOGY, 2017, 85 : 37 - 46
  • [3] Coastal evacuations by fish during extreme weather events
    Bailey, Helen
    Secor, David H.
    [J]. SCIENTIFIC REPORTS, 2016, 6
  • [4] The effects of disturbance on behaviour, habitat use and energy of spring staging snow geese
    Béchet, A
    Giroux, JF
    Gauthier, G
    [J]. JOURNAL OF APPLIED ECOLOGY, 2004, 41 (04) : 689 - 700
  • [5] Bhagawati R, 2015, RES J AGR FOR SCI, V3, P1
  • [6] EFFECT OF MOONLIGHT ON FLIGHT ACTIVITY OF MOSQUITOS
    BIDLINGMAYER, WL
    [J]. ECOLOGY, 1964, 45 (01) : 87 - &
  • [7] Blohm T, 2003, NYCTALUS, V9, P123
  • [8] Börk KS, 2006, REV BIOL TROP, V54, P1117
  • [9] INTERACTIONS BETWEEN PREDATION RISK AND COMPETITION - A FIELD-STUDY OF KANGAROO RATS AND SNAKES
    BOUSKILA, A
    [J]. ECOLOGY, 1995, 76 (01) : 165 - 178
  • [10] FOOD-HABITS OF THE INDIANA BAT IN MISSOURI
    BRACK, V
    LAVAL, RK
    [J]. JOURNAL OF MAMMALOGY, 1985, 66 (02) : 308 - 315