Abstract
Several studies on the social behavior of birds have shown two main benefits of social groups: optimization of foraging and decreasing the risk of predation. We tested whether the association between rufous hornero (Furnarius rufus) and the chalk-browed mockingbird (Mimus saturninus) affects the foraging and alert/sentinel behaviors of both species. We also evaluated the influence of group size on these behaviors. During 60 h of observations on each species, the association was studied in a periurban area in Brazil with scan samplings. The presence of F. rufus increased the frequency of foraging while reducing the time that M. saturninus dedicated to alert/sentinel behaviors. For F. rufus, however, the presence of M. saturninus did not affect the studied behaviors, although a different study pointed out that this species could also benefit from the association with M. saturninus, indicating that both species may occasionally be positively affected by the association with each other.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
References
Altmann J (1974) Observational study of behavior: sampling methods. Behaviour 49:227–267. https://doi.org/10.1163/156853974x00534
Alves MAS, Cavalcanti RB (1996) Sentinel behavior, seasonality, and the structure of bird flocks in a Brazilian savanna. Ornitol Neotrop 7:43–51
Amorim PSP (2020) Traços de vida e o efeito do querido inimigo em joão-de-barro (Furnariidae: Furnarius rufus). MSc. Dissertation, Universidade Federal de Juiz de Fora
Amorim PS, Dias RI (2021) A non-vocal alarm? Effects of wing trill playbacks on antipredator responses in the scaled dove. Acta Ethol 24:119–126. https://doi.org/10.1007/s10211-021-00368-9
Argel-de-Oliveira MM (1989) Ecoetologia do sabiá-do-campo Mimus saturninus no estado de São Paulo. MSc. Dissertation, Universidade Estadual de Campinas
Bates D, Maechler M, Bolker B, Walker S (2015) Fitting linear mixed-effects models using lme4. J Stat Softw 67:1–48. https://doi.org/10.18637/jss.v067.i01
Beauchamp G (1998) The effect of group size on mean food intake rate in birds. Biol Rev 73:449–472. https://doi.org/10.1111/j.1469-185X.1998.tb00179.x
Beauchamp G (2010) A comparative analysis of vigilance in birds. Evol Ecol 24:1267–1276. https://doi.org/10.1007/s10682-010-9358-5
Brown CR, Brown MB (2004) Group size and ectoparasitism affect daily survival probability in a colonial bird. Behav Ecol Sociobiol 56:498–511. https://doi.org/10.1007/s00265-004-0813-6
Carvalho REWF (2020) Biologia reprodutiva do gaviãozinho Gampsonyx swainsonii (Accipitridae, Aves). Undergraduate Monograph, Universidade Estadual Paulista “Júlio de Mesquita Filho”
Dias RI (2006) Effects of position and flock size on vigilance and foraging behaviour of the scaled dove Columbina squammata. Behav Process 73:248–252. https://doi.org/10.1016/j.beproc.2006.06.002
Dias RA, Maurício GN (2002) Natural history notes and conservation of a saffron-cowled blackbird Xanthopsar flavus population in the southern coastal plain of Rio Grande do Sul, Brazil. Bird Conserv Int 12:255–268. https://doi.org/10.1017/S0959270902002162
Fraga RM (1980) The breeding of rufous horneros (Furnarius rufus). Condor 82:58–68. https://doi.org/10.2307/1366785
Fraga RM (2003) Distribution, natural history and conservation of the black-and-white monjita (Heteroxolmis dominicana) in Argentina, a species vulnerable to extinction. Ornitol Neotrop 14:145–156
Fraga RM (2005) Ecology, behavior and social organization of saffron-cowled blackbirds (Xanthopsar flavus). Ornitol Neotrop 16:15–29
Fraga RM, Casañas H, Pugnali G (1988) Natural history and conservation of the endangered saffron-cowled blackbird Xanthopsar flavus in Argentina. Bird Conserv Int 8:255–267. https://doi.org/10.1017/S095927090000191X
Krüger L, Petry MV (2010) Black-and-white monjita (Xolmis dominicanus) followed by the saffron-cowled blackbird (Xanthopsar flavus): statistical evidence. Ornitol Neotrop 21:299–303
Kuznetsova A, Brockhoff PB, Christensen RHB (2017) lmerTest package: tests in linear mixed effects models. J Stat Softw 82:1–26. https://doi.org/10.18637/jss.v082.i13
Lehtonen J, Jaatien K (2016) Safety in numbers: the dilution effect and other drivers of group life in the face of danger. Behav Ecol Sociobiol 70:449–458. https://doi.org/10.1007/s00265-016-2075-5
Maruyama PK, Cunha AF, Tizo-Pedrosos E, Del-Claro K (2009) Relation of group size and daily activity patterns to southern lapwing (Vanellus chilensis) behaviour. J Ethol 28:339–344. https://doi.org/10.1007/s10164-009-0193-5
Morrell LJ, James R (2007) Mechanisms for aggregation in animals: rule success depends on ecological variables. Behav Ecol 19:193–201. https://doi.org/10.1093/beheco/arm122
Morse DH (1977) Feeding behavior and predator avoidance in heterospecific groups. Biosci 27:332–339. https://doi.org/10.2307/1297632
Potascheff CM, Lombardi JA, Lorenzi H (2010) Angiospermas arbóreas e arbustivas do campus da Universidade Estadual Paulista Júlio de Mesquita, Rio Claro (SP). Bioikos 24:21–30
R Core Team (2019) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org/
Ragusa-Netto J (1997) Evidence for the possible advantage of heterospecific social foraging in Furnarius rufus (Passeriformes: Furnariidae). Ararajuba 5:233–235
Ragusa-Netto J (2002) Vigilance towards raptors by nuclear species in bird mixed flocks in a Brazilian savannah. Stud Neotrop Fauna Environ 37:219–226. https://doi.org/10.1076/snfe.37.3.219.8573
Reis MG (2011) Ecologia de bandos mistos de aves na Estação Ecológica de Itirapina, estado de São Paulo. MSc. Dissertation, Universidade Federal de São Carlos
Sabino U (2015) Área de vida e comportamento de cuidado parental do Furnarius rufus (joão-de-barro). MSc. Dissertation, Universidade Federal do Mato Grosso
Sick H (1997) Ornitologia brasileira. Nova Fronteira, Rio de Janeiro
Sigrist T (2005) Aves do Brasil. Avis Brasilis, Vinhedo
Sridhar H, Beauchamp G, Shanker K (2009) Why do birds participate in mixed-species foraging flocks? A large-scale synthesis. Anim Behav 78:337–347. https://doi.org/10.1016/j.anbehav.2009.05.008
Tubelis DP (2006) Role of mixed-species flocks in the use of adjacent savannas by forest birds in the central Cerrado, Brazil. Austral Ecol 31:38–45. https://doi.org/10.1111/J.1442-9993.2006.01541.X
Acknowledgements
We thank Karl Mokross for his collaboration in the conception of the study and for his help in the field, colleagues Antônio Fontanella, André Luiz Bitencourt Moraes, and Ivan Provinciato for their help in the field, and two anonymous reviewers for their comments and suggestions on the manuscript. We also thank the Department of Biodiversity for the logistic support.
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MAP receives a research fellowship from the Brazilian Research Council (CNPq #304742/2019-8).
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Communicated by: Cristiano Azevedo
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Piassi, P.M., Batisteli, A.F., Gussoni, C.O.A. et al. Effects of the association between Mimus saturninus and Furnarius rufus on their foraging and alert behaviors. Ornithol. Res. 30, 99–103 (2022). https://doi.org/10.1007/s43388-022-00090-5
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DOI: https://doi.org/10.1007/s43388-022-00090-5