Abstract
Activity patterns play an important role in the fitness of animals. Energy conservation, physiological adaptations, prey availability, competition, and predation caused by predators and humans are all important parameters influencing when, and where, animals are active. Over time, however, a change in such external factors can lead to a shift in optimal activity patterns. In this paper, we use camera traps to study the daily activity patterns of Eurasian beavers (Castor fiber) reintroduced into an atypical, predator-free landscape. We explore if and how beavers have adjusted their activity patterns in the absence of predators, and whether this varies with day length and moonshine. Our results reveal that beavers in our study area have a mainly crepuscular and nocturnal activity pattern, similar to animals in more natural landscapes with predators. Changes in day length had only a limited effect on the duration of beavers’ activity, but, contrary to our expectations, beaver activity increased during bright moonlight. Activity patterns were also clearly bimodal during nights with bright moonlight, but unimodal during dark nights. The shape of their activity pattern did change throughout the year. These results suggest that beavers can alter their activity patterns in response to external cues, but that the current absence of predators has not resulted in a relaxation of their nocturnal activity patterns. We discuss our results in light of historical human persecution and suggest that beaver activity patterns continue to be influenced by ghosts of predators past.
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References
Bouskila, A., 1995. Interactions between predation risk and competition: a field study of kangaroo rats and snakes. Ecology 76, 165–178.
Byers, J.A., 1997. The ghosts of predators past. In: American Proghorn. Social Adaptations & the Ghosts of Predators Past. The University of Chicago Press, pp. 234–244.
Crawford, J.C., Liu, Z., Nelson, T.A., Nielsen, C.K., Bloomquist, C.K., 2008. Microsatellite analysis of mating and kinship in beavers (Castor canadensis).J. Mammal. 89, 575–581.
Cullen, C.L., 2003. Normal ocular features, conjunctival microflora and intraocular pressure in the Canadian beaver (Castor canadensis). Vet. Ophthalmol. 6, 279–284.
Daly, M., Behrends, P.R., Wilson, M.I., Jacobs, L.F., 1992. Behavioural modulation of predation risk: moonlight avoidance and crepuscular compensation in a nocturnal desert rodent, Dipodomys merriami. Anim. Behav. 44, 1–9.
Darimont, C.T., Carlson, S.M., Kinnison, M.T., Paquet, P.C., Reimchen, T.E., Wilmers, C.C., 2009. Human predators outpace other agents of trait change in the wild. Proc. Natl. Acad. Sci. U. S. A. 106, 952–954, https://doi.org/10.1073/pnas.0809235106
Departement Ruimte Vlaanderen, 2013. Overzicht van de evolutie van de ruimteboekhouding van het RSV, gebaseerd op volledig afgeronde planningsprocessen, in ha.
Dewas, M., Herr, J., Schley, L., Angst, C., Manet, B., Landry, P., Catusse, M., 2012. Recovery and status of native and introduced beavers Castor fiber and Castor canadensis in France and neighbouring countries. Mamm. Rev. 42, 144–165, https://doi.org/10.1111/j.1365-2907.2011.00196.x
Enserink, M., Vogel, G., 2006. The carnivore comeback. Science (80) 314, 746–749, https://doi.org/10.1126/science.314.5800.746
Fenn, M.G.P., MacDonald, D.W., 1995. Use of middens by red foxes: risk reverses rhythms of rats. J. Mammal. 76,130–136.
Griffin, P.C., 2005. Mortality by moonlight: predation risk and the snowshoe hare. Behav. Ecol. 16, 938–944, https://doi.org/10.1093/beheco/ari074
Gursky, S., 2003. Lunar philia in a nocturnal primate. Int. J. Primatol. 24, 351–367.
Halley, D., Rosell, F., Saveljev, A., 2012. Population and distribution of Eurasian beaver (Castor fiber). Balt. For. 18,168–175.
Hartman, G., Axelsson, A., 2004. Effect of watercourse characteristics on food-caching behaviour by European beaver, Castor fiber. Anim. Behav. 67, 643–646, https://doi.org/10.1016/j.anbehav.2003.07.008
Herr, J., Rosell, F., 2004. Use of space and movement patterns in monogamous adult Eurasian beavers (Castor fiber). J. Zool. 262, 257–264, https://doi.org/10.1017/S0952836903004606
Holm, S., 1979. A simple sequentially rejective multiple test procedure. Scand.J. Stat. 6, 65–70.
Hut, R.A., Kronfeld-Schor, N., Van Der Vinne, V., 2012. In search of a temporal niche: environmental factors. Prog. Brain Res. 199, 281–304, https://doi.org/10.1016/B978-0-444-59427-3.00017-4
Kappeler, P.M., Erkert, H.G., 2003. On the move around the clock: correlates and determinants of cathemeral activity in wild redfronted lemurs (Eulemur fulvus rufus). Behav. Ecol. Sociobiol. 54, 359–369, https://doi.org/10.1007/s00265-003-0652-x
Kile, N.B., Nakken, P.J., Rosell, F., Espeland, S., 1996. Red fox, Vulpes vulpes, kills a European beaver, Castor fiber. Kit. Can. Field-Naturalist 110, 338–339.
Kitchen, A.M., Gese, E.M., Schauster, E.R., 2000. Changes in coyote activity patterns due to reduced exposure to human persecution. Can. J. Zool. 78, 853–857, https://doi.org/10.1139/cjz-78-5-853
Kotler, B.P., Brown, J.S., Hasson, O., 1991. Factors affecting gerbil foraging behavior and rates of owl predation. Ecology 72, 2249–2260, https://doi.org/10.2307/1941575
Kronfeld-Schor, N., Dominoni, D., de la Iglesia, H., Levy, O., Herzog, E.D., Dayan, T., Helfrich-Forster, C., 2013. Chronobiology by moonlight. Proc. R. Soc. B 280, 1–11, https://doi.org/10.1098/rspb.2012.3088
Levy, O., Dayan, T., Kronfeld-Schor, N., 2007. The relationship between the golden spiny mouse circadian system and its diurnal activity: an experimental field enclosures and laboratory study. Chronobiol. Int. 24,599–613, https://doi.org/10.1080/07420520701534640
Linkie, M., Ridout, M.S., 2011. Assessing tiger-prey interactions inSumatran rainforests. J. Zool. 284, 224–229, https://doi.org/10.1111/j.1469-7998.2011.00801.x
Loe, L.E., Bonenfant, C., Mysterud, A., Severinsen, T., Oritsland, N.A., Langvatn, R., Stien, A., Irvine, R.J., Stenseth, N.C., 2007. Activity pattern of arctic reindeer in a predator-free environment: no need to keep a daily rhythm. Oecologia 152, 617–624, https://doi.org/10.1007/s00442-007-0681-7
Meek, P., Ballard, G., Fleming, P., 2012. An Introduction to Camera Trapping for Wildlife Surveys in Australia. PestSmart Toolkit Publication, Invasive Animals Cooperative Research Centre, Canberra, Australia.
Meyer, C.F.J., Schwarz, C.J., Fahr, J., 2004. Activity patterns and habitat preferences of insectivorous bats in a West African forest-savanna mosaic. J. Trop. Ecol. 20, 397–407, https://doi.org/10.1017/S0266467404001373
Monterroso, P., Alves, P.C., Ferreras, P., 2013. Catch me if you can: diel activity patterns of mammalian prey and predators. Ethology 119, 1–13, https://doi.org/10.1111/eth.12156
Mott, C.L., Bloomquist, C.K., Nielsen, C.K., 2011. Seasonal, diel, and ontogenetic patterns ofwithin-den behavior in beavers (Castor canadensis). Mamm. Biol. 76, 436–444, https://doi.org/10.1016/j.mambio.2010.09.002
Nicholas, G.P., 2007. Prehistoric hunter-gatherers in wetland environments: theoretical issues, economic organization and resource management strategies. In: Lille, M.C., Ellis, S. (Eds.), Wetland Archaeology and Environments: Regional Issues, Global Perspectives. Oxbow Books, pp. 46–62.
Nolet, B.A., Rosell, F., 1998. Comeback of the beaver Castor fiber: an overview of old and new conservation problems. Biol. Conserv. 83,165–173, https://doi.org/10.1016/S0006-3207(97)00066-9
Norris, D., Michalski, F., Peres, C.A., 2010. Habitat patch size modulates terrestrial mammal activity patterns in Amazonian forest fragments. J. Mammal. 91, 551–560, https://doi.org/10.1644/09-MAMM-A-199.1.Key
Orrock, J.L., 2010. When the ghost of predation has passed: do rodents from islands with and without fox predators exhibit aversion to fox cues? Ethology 116, 338–345, https://doi.org/10.1111/j.1439-0310.2010.01740.x
Prugh, L., Brashares, J., 2010. Basking in the moonlight? Effect of illumination on capture success of the endangered giant kangaroo rat. J. Mammal. 91, 1205–1212, https://doi.org/10.1644/10-MAMM-A-011.1.Key
Prugh, L.R., Golden, CD., 2014. Does moonlight increase predation risk? Meta-analysis reveals divergent responses of nocturnal mammals to lunar cycles. J. Anim. Ecol. 83, 504–514, https://doi.org/10.1111/1365-2656.12148
Ridout, M.S., Linkie, M., 2009. Estimating overlap of daily activity patterns from camera trap data. J. Agric. Biol. Environ. Stat. 14, 322–337.
Rodriguez-Ramos Fernandez, J., Dubielzig, R.R., 2013. Ocular comparative anatomy of the family Rodentia. Vet. Ophthalmol. 16 (Suppl 1), 94–99, https://doi.org/10.1111/vop.12070
Roll, U., Dayan, T., Kronfeld-Schor, N., 2006. On the role of phylogeny in determining activity patterns of rodents. Evol. Ecol. 20, 479–490, https://doi.org/10.1007/s10682-006-0015-y
Rosell, F., Bozsér, O., Collen, P., Parker, H., 2005. Ecological impact of beavers Castor fiber and Castor canadensis and their ability to modify ecosystems. Mamm. Rev. 35, 248–276, https://doi.org/10.1111/j.1365-2907.2005.00067.x
Rosell, F., Czech, A., 2000. Responses of foraging Eurasian beavers Castor fiber to predator odours. Wildlife Biol. 6, 13–21.
Schipper, J., 2007. Camera-trap avoidance by kinkajous Potos flavus: rethinking the “non-invasive” paradigm. Small Carniv. Conserv. 36, 38–41.
Statbel, 2010. Structure of the Population According to Residence: Surface and Population Density. Total Population, on January 1 2010. Statistics of Belgium from the Federal Government.
Tobler, M.W., Carrillo-Percastegui, S.E., Powell, G., 2009. Habitat use, activity patterns and use of mineral licks by five species of ungulate in South-Eastern Peru. J. Trop. Ecol. 25, 261–270, https://doi.org/10.1017/S0266467409005896
Verbeylen, G., 2003. The unofficial return of the European beaver (Castor fiber) in Flanders (Belgium). Lutra 46, 123–128.
Wegge, P., Pokheral, C.P., Jnawali, S.R., 2004. Effects of trapping effort and trap shyness on estimates of tiger abundance from camera trap studies. Anim. Conserv. 7, 251–256, https://doi.org/10.1017/S1367943004001441
Yerushalmi, S., Green, R.M., 2009. Evidence for the adaptive significance of Circadian rhythms. Ecol. Lett. 12, 970–981, https://doi.org/10.1111/j.1461-0248.2009.01343.x
Zedrosser, A., Steyaert, S.M.J.G., Gossow, H., Swenson, J.E., 2011. Brown bear conservation and the ghost of persecution past. Biol. Conserv. 144, 2163–2170, https://doi.org/10.1016/j.biocon.2011.05.005
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Swinnen, K.R.R., Hughes, N.K. & Leirs, H. Beaver (Castor fiber) activity patterns in a predator-free landscape. What is keeping them in the dark?. Mamm Biol 80, 477–483 (2015). https://doi.org/10.1016/j.mambio.2015.07.006
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DOI: https://doi.org/10.1016/j.mambio.2015.07.006