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Diurnal timing of nonmigratory movement by birds: the importance of foraging spatial scales

Mallon, JM, Tucker, MA, Beard, A, Bierregaard, RO, Bildstein, KL, Bohning-Gaese, K, Brzorad, JN, Buechley, ER, Bustamante, J, Carrapato, C, Castillo-Guerrero, JA, Clingham, E, Desholm, M, DeSorbo, CR, Domenech, R, Douglas, H, Duriez, O, Enggist, P, Farwig, N, Fiedler, W, Gagliardo, A, Garcia-Ripolles, C, Gil Gallus, JA, Gilmour, M ORCID: 0000-0002-2618-1095, Harel, R, Harrison, AL, Henry, L, Katzner, TE, Kays, R, Kleyheeg, E, Liminana, R, Lopez-Lopez, P, Lucia, G, Maccarone, A, Mallia, E, Mellone, U, Mojica, EK, Nathan, R, Newman, SH, Oppel, S, Orchan, Y, Prosser, DJ, Riley, H, Rosner, S, Schabo, DG, Schulz, H, Shaffer, S, Shreading, A, Silva, JP, Sim, J, Skov, H, Spiegel, O, Stuber, MJ, Takekawa, JY, Urios, V, Vidal-Mateo, J, Warner, K, Watts, BD, Weber, N, Weber, S, Wikelski, M, Zydelis, R, Mueller, T and Fagan, WF 2020 , 'Diurnal timing of nonmigratory movement by birds: the importance of foraging spatial scales' , Journal of Avian Biology, vol. 51, no. 12 , pp. 1-11 , doi: 10.1111/jav.02612.

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Timing of activity can reveal an organism's efforts to optimize foraging either by minimizing energy loss through passive movement or by maximizing energetic gain through foraging. Here, we assess whether signals of either of these strategies are detectable in the timing of activity of daily, local movements by birds. We compare the similarities of timing of movement activity among species using six temporal variables: start of activity relative to sunrise, end of activity relative to sunset, relative speed at midday, number of movement bouts, bout duration and proportion of active daytime hours. We test for the influence of flight mode and foraging habitat on the timing of movement activity across avian guilds. We used 64 570 days of GPS movement data collected between 2002 and 2019 for local (non-migratory) movements of 991 birds from 49 species, representing 14 orders. Dissimilarity among daily activity patterns was best explained by flight mode. Terrestrial soaring birds began activity later and stopped activity earlier than pelagic soaring or flapping birds. Broad-scale foraging habitat explained less of the clustering patterns because of divergent timing of active periods of pelagic surface and diving foragers. Among pelagic birds, surface foragers were active throughout all 24 hrs of the day while diving foragers matched their active hours more closely to daylight hours. Pelagic surface foragers also had the greatest daily foraging distances, which was consistent with their daytime activity patterns. This study demonstrates that flight mode and foraging habitat influence temporal patterns of daily movement activity of birds.

Item Type: Article
Authors/Creators:Mallon, JM and Tucker, MA and Beard, A and Bierregaard, RO and Bildstein, KL and Bohning-Gaese, K and Brzorad, JN and Buechley, ER and Bustamante, J and Carrapato, C and Castillo-Guerrero, JA and Clingham, E and Desholm, M and DeSorbo, CR and Domenech, R and Douglas, H and Duriez, O and Enggist, P and Farwig, N and Fiedler, W and Gagliardo, A and Garcia-Ripolles, C and Gil Gallus, JA and Gilmour, M and Harel, R and Harrison, AL and Henry, L and Katzner, TE and Kays, R and Kleyheeg, E and Liminana, R and Lopez-Lopez, P and Lucia, G and Maccarone, A and Mallia, E and Mellone, U and Mojica, EK and Nathan, R and Newman, SH and Oppel, S and Orchan, Y and Prosser, DJ and Riley, H and Rosner, S and Schabo, DG and Schulz, H and Shaffer, S and Shreading, A and Silva, JP and Sim, J and Skov, H and Spiegel, O and Stuber, MJ and Takekawa, JY and Urios, V and Vidal-Mateo, J and Warner, K and Watts, BD and Weber, N and Weber, S and Wikelski, M and Zydelis, R and Mueller, T and Fagan, WF
Keywords: flight mode, foraging, movement ecology, multispecies, nonmigratory, temporal
Journal or Publication Title: Journal of Avian Biology
Publisher: Blackwell Munksgaard
ISSN: 0908-8857
DOI / ID Number: 10.1111/jav.02612
Copyright Information:

Copyright 2020 Nordic Society Oikos

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