Leonard Lab

Dr. Marty Leonard

Professor, Dalhousie University

mleonard 'at' dal.ca

Phone: (902) 494-2158

Fax: (902) 494-3736

Marty's research interests include animal communication and bird conservation, along with other topics studied by her students.

Recent Publications (students and post-docs in bold)

Haff, T.M., A.G. Horn, M.L. Leonard and R.D. Magrath. 2015. Conspicuous calling near cryptic nests: a review of hypotheses and a field study on white-browed scrubwrens. Journal of Avian Biology. In press.

Pollet, I.L., A. Hedd,  P.D. Taylor, W.A. Montevecchi and D. Shutler. 2014. Migratory movements and wintering areas of Leach's StormPetrels tracked using geolocators. Journal of Field Ornithology. 85: 321-328.

Gutowsky, S.E., L.F.G. Gutowsky, I.D. Jonsen, M.L. Leonard, M.B. Naughton, M.D. Romano and S.A. Shaffer. 2014. Daily activity budgets reveal a quasi-flightless stage during non-breeding in Hawaiian albatrosses. Movement Ecology. 2:23.

Farmer, R.G., M.L. Leonard, J.E. Mills Flemming and S.C. Anderson. 2014.  Observer aging and long-term avian survey data quality. Ecology and Evolution. 4: 2563-2576.

McIntyre, E., M.L. Leonard and A.G. Horn. 2014.  Do nestling tree swallows (Tachycineta bicolor) respond to parental alarm calls? The Auk. 131: 314-320.

Pollet, I., R. Ronconi, I. Jonsen, M.L. Leonard, P. Taylor and D. Shutler. 2014. Foraging movements of Leach’s storm-petrels, Oceanodroma leucorhoa, during incubation. Journal of Avian Biology. 45: 305-314. 

Beaulieu, G., D. Austin and M.L. Leonard. 2014. Do nest exclosures affect the behaviour of Piping Plovers (Charadrius melodus) and their predators? Canadian Journal of Zoology 92: 105-112.

Reers, H., M.L. Leonard, A.G. Horn and A. Jacot.  2014. Development of brood signatures in tree swallows: a cross-fostering experiment. Journal of Avian Biology. 45: 123-130.

McIntyre, E., M.L. Leonard and A.G. Horn.  2014. Ambient noise and predation risk in nestling birds. Animal Behaviour. 87: 85-89.

Winkler, D., K. Ringelman, P. Dunn, L. Whittingham, D. Hussell, R. Clark, R. Dawson, L. Johnson, A. Rose, S. Austin, W.D. Robinson, M. Lombardo, P. Thorpe, D. Shutler, R. Robertson, M. Stager, M. Leonard, A. Horn, J. Dickinson, V. Ferretti, V. Massoni, F. Bulit, J. Reboreda, M. Liljesthrom, M. Quiroga, E. Rakhimberdiev, and D. Ardia.  2014. Latitudinal variation in clutch size-lay date regressions in swallows: effects of food supply or demography?  Ecography. DOI: 10.1111/j.1600-0587.2013.00458.x

Breed, G.A., W.D. Bowen and M.L. Leonard.  2013. Behavioural signature of intraspecific competition and density-dependence in colony breeding marine predators. Ecology and Evolution. 3: 3838-3854.

Fairhurst, E.N., Horn, A.G. and M.L. Leonard.  2013. Nest acoustics and begging call structure in nestling tree swallows. Animal Behaviour. 85: 917-923.

Patriquin, K.J., F. Palstra, M.L. Leonard and H.G. Broders.. 2013. Female northern myotis (Myotis septentrionalis) that roost together are related. Behavioral Ecology. 24: 949-954.

McGregor, P.K., A.G. Horn, M.L. Leonard and F. Thomsen. 2013. Anthropogenic Noise and Conservation In: Animal Communication and Noise. Edited by: H. Brumm; Springer, Heidelberg. pp 409-444.

Laughlin, A.J., C.M. Taylor, D.W. Bradley, R.G. Clark, R. Dawson, P.O. Dunn, A. Horn, D. LeClair, M.L. Leonard, D.R. Sheldon, D. Shutler, L. Whittingham, D.W. Winkler, D.R. Norris.  2013. Combining geolocators with weather radar and citizen science data to test hypotheses about habitat use during fall migration in an aerial insectivore. The Auk. 130: 230-239.

Shutler, D., D.J.T. Hussell, D.R. Norris, D.W. Winkler, R.J. Robertson, F. Bonier, W.B. Rendell, M. Belisle, R.G. Clark, R.D. Dawson, N.T. Wheelwright, M.P. Lombardo, P.A. Thorpe, M.A. Truan, R. Walsh, M.L. Leonard, A.G. Horn, C.M. Vleck, D. Vleck, A.P. Rose, L.A. Whittingham, P.O. Dunn, K.A. Hobson and M.T. Stanback.  2012.  Spatiotemporal patterns in nest box occupancy by tree swallows. Special Feature: Avian Conservation and Ecology. 7(1): 3.

Zanette, L., M. Clinchy,  M.L. Leonard, A. Horn, D. Haydon and E. Hampson.  2012. Brood parasite induced female-biased mortality affects songbird demography: negative implications for conservation. Oikos. 121: 1493-1500.

Leonard, M.L. and A.G. Horn.  2012. Ambient noise increases missed detections in nestling birds. Biology Letters. 8: 530-532.

Farmer, R.G., M.L. Leonard and A.G. Horn.  2012. Observer effects and avian call count survey quality: rare-species biases and overconfidence. The Auk. 129: 76-86.

Steenweg, R., R. Ronconi and M.L. Leonard.  2011. Seasonal and age-dependent dietary partitioning between Great Black-backed and Herring Gulls. The Condor. 113: 795-805.

Breed, G.A., W.D. Bowen and M.L. Leonard.  2011. Development of foraging strategies with age in a long-lived marine predator. Marine Ecology Progress Series. 431: 267-279.

Dale, C. and M.L. Leonard.  2011. Reproductive consequences of migration decisions by Ipswich Sparrows (Passerculus sandwichensis princeps). Canadian Journal of Zoology. 89: 100-108.

Farmer, R.G. and M.L. Leonard.  2011. Long-term feeding ecology of Great Black-backed Gulls (Larus marinus) in the northwest Atlantic: 110 years of feather isotope data. Canadian Journal of Zoology. 89: 123-133.

Marques, P., M.L. Leonard, A.G. Horn and A. Contasti.  2011. Begging by nestling tree swallows (Tachycineta bicolor) in response to hunger and signalling by nestmates. Ethology 117: 163-170.

Drummond, B.E. and M.L. Leonard.  2011. Effect of nest site on reproductive success in fork-tailed storm-petrels in the Aleutian Islands. Avian Conservation and Ecology 5: 4.

Magrath, R.D, T.M. Haff, A.G. Horn and M.L. Leonard.  2010. Calling in the face of danger? How predation risk affects acoustic communication by parent birds and their offspring. Advances in Behavior. 41: 187-253.

Patriquin, K., M.L. Leonard, H. Broders and C. Garroway.  2010. Do social networks of female northern long-eared bats vary with reproductive period and age? Behavioral Ecology and Sociobiology. 64: 899-913.

Horn, A.G. and M.L. Leonard.  2010. Parent-offspring signaling. Encyclopedia of Animal Behavior, Breed, M. D. and Moore, J., eds, Academic Press, Oxford.

Drummond, B.E. and M.L. Leonard.  2009. Breeding biology of the fork-tailed storm-petrel in the Aleutian Islands. Marine Ornithology. 37: 265-273.

Breed, G.A., I.D. Jonsen, R.A. Myers, W.D. Bowen and M.L. Leonard.  2009. Sex-specific, seasonal foraging tactics of adult grey seals (Halichoerus grypus) revealed by state–space analysis. Ecology. 90: 3209-3221.

Leonard, M.L., A.G. Horn and A. Dorland.  2009. Does begging call convergence increase feeding rates to nestling tree swallows? Journal of Avian Biology. 40: 243-247.

Horn, A.G. and M.L. Leonard. 2008. Acoustic interactions in nestling birds. Journal of Comparative Psychology. 122: 298-304.

Leonard, M.L. and A.G. Horn.  2008. Does ambient noise affect growth and call structure in nestlings birds? Behavioral Ecology. 19: 502-507.

Pagnucco, K., L. Zanette, M. Clinchy and M.L. Leonard.  2008. Sheep in wolf’s clothing: host nestling vocalizations resemble their cowbird competitor’s. Proceedings of the Royal Society of London B. 275: 1061-1065.

Chisholm, S.E. and M.L. Leonard.  2008. Effect of forest management on the abundance of Bicknell's Thrush (Catharus bicknelli). Canadian Journal of Zoology. 86: 217-223. 

Rock, J.C., M.L. Leonard and A.W. Boyne.  2007. Do co-nesting arctic and common terns partition foraging habitat and chick diets? Waterbirds. 30: 579-587.

Rock, J.C., M.L. Leonard and A.W. Boyne.  2007. Foraging habitat and chick diets of Roseate Terns Sterna dougllii  breeding on Country Island, Nova Scotia. Avian Conservation and Ecology. 2: 4.  

Horn, A.G. and M.L. Leonard.  2006. Acoustic interactions in broods of begging nestling birds. Journal of the  Acoustical  Society of America. 119: 3223. 

Breed, G.A., W.D. Bowen,  J.I. McMillan and M.L. Leonard.  2006. Sexual segregation of seasonal foraging habitats in a non-migratory marine mammal. Proceedings of the Royal Society of London B. 273: 2319-2326.

Leonard, M.L. and A.G. Horn.  2006. Age-related changes in signalling of need by nestling tree swallows. Ethology. 112: 1020-1026.

Cockle, K.L., M.L. Leonard and A.A. Bodrati.  2005. Presence and abundance of birds in an Atlantic forest reserve and adjacent plantation of shade-grown yerba mate, in Paraguay. Biodiversity and Conservation. 14: 3265-3288.

Smith, T.E., M.L. Leonard and B.D. Smith.  2005. Provisioning rules and competition in asynchronously hatching common terns. Behavioral Ecology and Sociobiology. 58: 456-465.

Leonard, M.L. and A.G. Horn.  2005. Ambient noise and the design of begging signals. Proceedings of the Royal Society of London B. 272: 651-656.

Leonard, M.L., A.G. Horn and A. Mukhida.  2005. False alarms and begging in nestling birds. Animal Behaviour. 69: 701-708.

Horn, A.G. and M.L. Leonard.  2005. Nestling begging as a communication network. In: Animal Communication Networks (Ed. by P. McGregor). Cambridge University Press: Cambridge.

Zink, R.M, J.D. Rising, S. Mockford, A.G. Horn, J. Wright, M.L. Leonard and M. Westberg. 2005.  Mitochondial DNA variation, species limits, and rapid evolution of plumage coloration and size in the savannah sparrow. The Auk. 107: 21-28.

Taylor, S., M.L. Leonard, D.J. Boness and P. Majluf.  2004. Humboldt penguins Spheniscus humboldti change their foraging patterns following breeding failure.  Marine Ornithology. 32: 63-67.

Shutler, D.., D.J.T. Hussell, A. G. Horn, M.L. Leonard, R.W. Shutler and D. Lepage..  2004. Breeding between tree swallows from the same brood. Journal of Field Ornithology. 75: 353-358.

Leonard, M.L., A. Boyne and S. Boates.  2004. Status and recovery of roseate terns (Sterna dougallii) in Nova Scotia. Journal of the Nova Scotia Institute of Science. 42: 253-262.