Mammalian Biology

, Volume 72, Issue 6, pp 364–371 | Cite as

Spatial and temporal patterns of brown rat (Rattus norvegicus) abundance variation in poultry farms

  • Isabel Elisa Gómez VillafañeEmail author
  • María Busch
Original investigation


The temporal and spatial patterns of rat abundance variations were studied, and which factors might affect these patterns in poultry farms. Forty-eight poultry farms were sampled from spring 1999 to winter 2001 in Buenos Aires, Argentina. Environmental variables of farms, meteorological variables and distances among farms were registered to evaluate a possible association with rat abundance estimated by trap success. Rattus norvegicus was the dominant rat species in the study area. Rat abundance did not vary temporally and there was reproduction at all times. Trap success was more similar among neighboured farms than among farms further apart. Contrary to the abundance of other small rodents, rat abundance was not significantly related to farm characteristics. The lack of coincidence between rats and other small rodents suggests the existence of a differential response of rats to environmental factors of the poultry farms.

Key words

Rattus norvegicus poultry farms abundance 

Räumliche und zeitliche Variation in der Abundanz der Wanderratte (Rattus norvegicus) auf Geflügelfarmen


Das Ziel dieser Arbeit war, die zeitliche und räumliche Variation der Abundanz von Ratten zu studieren, und zu klären, welche Faktoren diese Variation auf den Geflügelfarmen beeinflussen. Achtundvierzig Geflügelfarmen wurden vom Frühjar 1999 bis zum Winter 2001 in Buenos Aires, Argentinien untersucht. Ökologische Variablen der Farmen, die Distanz zwischen den Farmen und verschiedene Wettervariablen wurden analysiert, um die mögliche Assoziation mit der Abundanz der Ratten, als Zahl der Fänge in den Fallen abgeschätzt, auszuwerten. Rattus norvegicus war die dominante Rattenart des Studienraums. Die Abundanz der Ratten hatte keine zeitliche Variation und die Reproduktion war fortdauernd. Die Zahl der Fänge war ähnlicher zwischen Nachbarfarmen als zwischen weiter entfernten Farmen. Im Gegensatz zu der Abundanz von anderen kleinen Nagetieren war die Abundanz der Ratten mit keinen Farmeigenschaften assoziiert. Die unterschiedlichen Resultate zwischen Ratten und anderen kleinen Nagetieren suggerieren eine unterschiedliche Reaktion der Ratten auf ökologische Faktoren der Geflügelfarmen.


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  1. Barnett, S. A. (1958): An analysis of social behaviour in wild rats. Proc. Zool. Soc. London 130, 107–152.CrossRefGoogle Scholar
  2. Bilenca, D.; Kravetz, F. (1995): Daños a maíz por roedores en la región pampeana (Argentina) y un plan para su control. Vida Silvestre Neotropical l4, 51–57.Google Scholar
  3. Bishop, J. A.; Hartley, D. J. (1976): The size and age structure of rural populations of Rattus norvegicus containing individuals resistant to the anticoagulant poison warfarin. J. Anim Ecol. 45, 623–646.CrossRefGoogle Scholar
  4. Busch, M.; Kravetz, F. (1992): Competitive interactions among rodents (Akodon azarae, Calomys laucha, C. Musculinus and Oligoryzomys flavescens) in a two-habitat system. I. Spatial and numerical relationships. Mammalia 56, 45–56.Google Scholar
  5. Butler, F. T.; Whelan, J. (1994): Population structure and reproduction in brown rats (Rattus norvegicus) from pig farms, Co. Kildare, Ireland. J. Zool. (London) 223, 277–291.Google Scholar
  6. Charleton, M.; Olson, S. (1999): Amerigo Vespucci and the rat of Fernando de Noronha: a new genus and species of Rodentia (Muridae: Sigmodontinae) from a volcanic island off Brazil’s continental shelf. Am. Mus. Novit. 3256, 1–59.Google Scholar
  7. Coto, H. (1997): Biología y control de ratas sinantropicas. Agrevo: Editorial Abierta, Argentina.Google Scholar
  8. Cowan, D. P.; Quy, R.J.; Lambert, M. S. (2003): Ecological perspectives on the management of commensal rodents. In: Rats, Mice and People: Rodent Biology and Management. Ed. by G. R. Singleton, L. A. Hinds, C. J. Krebs and D. M. Spratt. Australia: ACIAR. Pp. 433–439.Google Scholar
  9. Glass, G.; Johnson, J.; Hodenbach, G.; Disalvo, C.; Peters, C.; Childs, J.; Mills, J. (1997): Experimental evaluation of rodent exclusion methods to reduce hantavirus transmission to humans in rural housing. Am. Soc. Tro. Med. Hyg. 56, 359–364.CrossRefGoogle Scholar
  10. Gomez Villafane, I. E.; Cavia, R.; Bilenca, D. N.; Busch, M. (2003): Intra-farm variation of rodent infestation on poultry farms of central Argentina. Brit. Poultry Sci. 44, 669–673.CrossRefGoogle Scholar
  11. Gomez Villafane, I. E.; Bilenca, D. N.; Cavia, R.; Mino, M.; Cittadino, E. A.; Busch, M. (2001): Environmental factors associated with rodent infestations in Argentine poultry farms. Brit. Poultry Sci. 42, 300–307.CrossRefGoogle Scholar
  12. Hanski, I.; Gilpin, M. (1997): Metapopulation Biology. Ecology, Genetics and Evolution. New York, USA: Academic Press.Google Scholar
  13. Huson, L. W.; Rennison, B. D. (1981): Seasonal variability of Norway rat (Rattus norvegicus) infestation of agricultural premises. J. Zool. (London) 194, 257–260.CrossRefGoogle Scholar
  14. Innes, J. G.; King, C. M.; Flux, M.; Kimberley, M. O. (2001): Population biology of the ship rat and Norway rat in Pureora Forest Park, 1983–87. New Zeal. J. Zool. 28, 57–78.CrossRefGoogle Scholar
  15. Kataranovski, D.; Kataranovski, M.; Savic, I. R.; Cakic, P.; Soldatovic, B.; Matic, R. (1994): Morphometric and biochemical parameters as age indicators in the Norway Rat (Rattus norvegicus Berk, 1769). Acta Veterinaria 44, 371–378.Google Scholar
  16. Leslie, P. H.; Venables, V. M.; Venables, L. S. V. (1952): The fertility and population structure of the brown rat (Rattus norvegicus) in corn ricks and some other habitats. Proc. Zool. Soc. (London) 122, 187–238.CrossRefGoogle Scholar
  17. Manly, B. F. J. (1997): Randomization, Bootstrap and Monte Carlo Methods in Biology. London: Chapman and Hall.Google Scholar
  18. Mills, J.; Ellis, B.; Mckee, K.; Maiztegui, J.; Childs, J. (1991): Habitat associations and relative densities of rodent populations in cultivated areas of Central Argentina. J. Mammalogy 72, 470–479.CrossRefGoogle Scholar
  19. Miño, M.H. (2003): Caracterización de las comu-nidades de pequenos roedores en granjas avícolas del partido de Exaltación de la Cruz (Provincia de Buenos Aires). Diss. thesis, Universidad de Buenos Aires.Google Scholar
  20. Pimentel, D.; Lach, L.; Zuniga, R.; Morrison, D. (1999): Environmental and economic costs associated with non-indigenous species in the United States. Ithaca, NY: College of Agriculture and Life Sciences. Cornell University.Google Scholar
  21. Pratt, H. D. (1991): Control of commensal rats and mice. Self study curse 3013-G, Vector-Borne disease control. CDC Manual. Atlanta: Public Health Service.Google Scholar
  22. Ritche, M.E. (1997): Populations in a landscape context: sources, sinks and metapopulations. In: Wildilife and Landscape Ecology. Effects of Pattern and Scale. New York: Springer.Google Scholar
  23. Singleton, G. R.; Hinds, L. A.; Krebs, C. J.; Spratt, D. M. (2003): Rats, mice and people: rodent biology and management. ACIAR Monograph 96, 1–564.Google Scholar
  24. Villa, B.; Velasco, A. (1994): Integrated pest management of the rat Rattus norvegicus in poultry farms. Veterinaria-México 25, 247–249.Google Scholar
  25. Villa, C. B.; Whisson, D. A.; Sanchez-Cordero, V. (1997): Capture rate and reproductive patterns of Norway rats (Rattus norvegicus) (Muridae: Rodentia) in a poultry farm in Mexico City. Anales Inst. de Biol. Universidad Nac. Aut. Mexico, Departamento Zoología 68, 165–172.Google Scholar
  26. Webster, J.; MacDonald, D. (1995): Parasites of wild brown rats (Rattus norvegicus) on UK farms. Parasitology 1211, 247–255.CrossRefGoogle Scholar
  27. Williams, R. L.; Singleton, G. R.; Dickman, C. R. (2003): The role of interspecific competition in determining macrohabitat use by the black rat and brown rat at Bradley’s Head, NSW. In: Rats, Mice and People: rodent biology and management. ACIAR Monograph 96, 1–564.Google Scholar
  28. Zar, J. (1996): Biostatistical Analysis. USA: Prentice-Hall.Google Scholar

Copyright information

© Deutsche Gesellschaft für Säugetierkunde, e. V. DGS 2007

Authors and Affiliations

  1. 1.Av. Cantilo S/N, Laboratorio de Ecología de Poblaciones, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresArgentina

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