The
Parker Lab
PUBLICATIONS:
Nims,
B., H. Vargas, N Gottdenker, PG Parker. Low genetic diversity and
lack of population structure in the endangered Galápagos penguin
(Spheniscus
mendiculus).
In press, Conservation
Genetics.
Gottdenker,
NL, T Walsh, G Jimenez-Uzcategui, F Betancourt, M Cruz, C Soos,
RE Miller, PG Parker. Post-mortem findings in wild Galápagos birds
submitted to the Charles Darwin Research Station, Santa Cruz, Ecuador
from 2002-2004. Accepted pending revision, Journal
of Wildlife Diseases
Santiago-Alarcon,
D, NK Whiteman, RE Ricklefs, PG Parker, G Valkiunas. Patterns of
parasite abundance and distribution in island populations of Galápagos
endemic birds. In press, Journal
of Parasitology.
Soos,
C., L Padilla, A Iglesias, N Gottdenker, M Cruz Bedon, A Rios, PG
Parker. 2008. Comparison of pathogens in broiler and backyard chickens
on the Galápagos Islands: Implications for transmission to wildlife.
In press, Auk.
Whiteman,
NK, RT Kimball, PG Parker. 2007. Co-phylogeography and comparative
population genetics of the Galápagos Hawk and three co-occurring
ectoparasite species: Natural history shapes population histories
within a parasite community. In press, Molecular
Ecology.
Tori,
WP, R Duraes, TB Ryder, M Anciaes, J Karubian, RH Macedo, AC Uy,
PG Parker, TB Smith, AC Stein, MS Webster, JG Blake, BA Loiselle.
Advances in sexual selection theory: Insights from tropical avifauna.
Proceedings
of the VIII Neotropical Ornithological Congress,
in press.
Duffie,
CV, TC Glenn, C Hagen, PG Parker. 2007. Microsatellite markers isolated
from the flightless cormorant (Phalacrocorax
harrisi).
In press, Molecular
Ecology Notes.
Baião,
PC, EA Schreiber, PG Parker. 2007. The genetic basis of the plumage
polymorphism in Red-Footed Boobies (Sula
sula):
A Melanocortin-1 Receptor (MC1R) analysis. Journal
of Heredity
98:287-292.
Bollmer,
JL, FH Vargas, PG Parker. 2007. Low MHC variation in the endangered
Galápagos penguin (Spheniscus
mendiculus).
Immunogenetics
59:593-602.
Merkel,
J., H.I. Jones, N.K. Whiteman, N. Gottdenker, H. Vargas, E.K. Travis,
R.E. Miller, P.G. Parker. 2007. Microfilariae in Galápagos penguins
(Spheniscus
mendiculus)
and flightless cormorants (Phalacrocorax
harrisi):
genetics, morphology, and prevalence. Journal
of Parasitology
93:495-503.
Santiago-Alarcon,
D. & P.G. Parker. 2007. Sexual size dimorphism and morphological
evidence supporting the recognition of two subspecies in the Galápagos
dove. Condor
109:132-141.
Edly-Wright,
CE, P Schwagmeyer, PG Parker, D Mock. 2007. Genetic similarity of
mates, offspring health and extrapair fertilization in house sparrows.
Animal
Behaviour
73:367-378.
Loiselle,
B, T Ryder, R Duraes, W Tori, J Blake, PG Parker. 2007. Kin selection
does not explain male aggregation at leks of four Pipridae species.
Behavioral
Ecology
18:287-291.
Padilla,
LF, and PG Parker. 2007. Monitoring Avian Health in the Galápagos
Islands: Current Knowledge, pp. Zoo and Wild Animal Medicine 6:
Current Therapy; Fowler M and Miller RE (Eds).
Jones,
TC, SE Riechert, PG Parker. 2007. Fostering model explains variation
in levels of sociality in a spider system. Animal
Behaviour
73:195-204.
Whiteman,
NK, P Sanchez, JF Merkel, H Klompen, PG Parker. 2006. Cryptic host
specificity of an avian skin mite (Epidermoptidae) vectored by lousefiles
(Hippoboscidae) associated with endemic Galápagos bird species.
Journal
of Parasitology 92:1218-1228.
Travis,
EK, FH Vargas, J Merkel, N Gottdenker, RE Miller, PG Parker. 2006.
Hematology, serum chemistry, and serology of the Galápagos Penguin
in the Galápagos Islands, Ecuador. Journal
of Wildlife Diseases
42: 625-632.
Roy
Nielsen, C.L., P.G. Parker, R.J. Gates. 2006. Intraspecific nest
parasitism of cavity-nesting wood ducks: Costs and benefits to hosts
and parasites. Animal
Behaviour
72:917-926.
Roy
Nielsen, C.L., R.J. Gates, P.G. Parker. 2006. Intraspecific nest
parasitism of wood ducks in natural cavities: Comparisons with nest
boxes. J.Wildlife
Management
70:835-843.
Parker,
PG, NK Whiteman, and RE Miller. 2006. Perspectives
in Ornithology:
Conservation Medicine in the Galápagos Islands: Partnerships among
Behavioral, Population and Veterinary Scientists. Auk
123: 625-638.
Santiago-Alarcon,
D, SM Tanksley, PG Parker. 2006. Morphological variation and genetic
structure of Galápagos Dove (Zenaida
galapagoensis)
populations: issues in conservation for the Galápagos bird fauna.
Wilson
Journal of Ornithology
118:194-207.
Padilla,
L, NK Whiteman, JF Merkel, KP Huyvaert, PG Parker. 2006. Health
assessment of seabirds on Genovesa, Galápagos Islands. Ornithological
Monographs
60:86-97.
Huyvaert,
KP, DJ Anderson, and PG Parker. 2006. The mate opportunity hypothesis
and extra-pair paternity in waved albatrosses (Phoebastria
irrorata).
Auk
123:524-533.
Travis,
EK, FH Vargas, J Merkel, N Gottdenker, RE Miller, PG Parker. 2006.
Hematology, plasma chemistry, and disease serology of the Flightless
Cormorant (Phalacrocorax
harrisi)
in the Galápagos Islands, Ecuador. Journal
of Wildlife Disease
42:133-141.
Reed,
W.L., M.E. Clark, P.G. Parker, S.A. Raouff, N. Arguedas, D. Monk,
E. Snadjr, V. Nolan Jr., E.D. Ketterson. 2006. Physiological effects
on demography: A long-term experimental study of testosterone’s
effects on fitness. American
Naturalist
167:667-683.
Huyvaert,
KP and PG Parker. 2006. Absence of population genetic structure
among breeding colonies of the waved albatross. Condor
108:441-446.
Roy
Nielsen, CL, B Semel, PW Sherman, DF Westneat, PG Parker. 2006.
Host-parasite relatedness in wood ducks: Patterns of kinship and
parasite success. Behavioral
Ecology 17:491-496.
Bollmer,
JL, RT Kimball, NK Whiteman, J Sarasola, PG Parker. 2006. Phylogeography
of the Galápagos Hawk: a recent arrival to the Galápagos Islands.
Molecular
Phylogenetics and
Evolution
39:237-247.
Whiteman,
NK, KD Matson, JL Bollmer, PG Parker. 2006. Disease ecology in the
Galápagos Hawk (Buteo
galapagoensis):
Host genetic diversity, parasites, and natural antibodies. Proceedings
of the Royal Society of London B
273:797-804.
Parker,
P.G. and Z. Tang-Martinez. 2005. Bateman gradients in field and
laboratory studies: A cautionary tale. Integrative
and Comparative Biology
45:895-902.
Bollmer,
J.L., N.K. Whiteman, M.D. Cannon, J.C. Bednarz, Tj. DeVries, P.G.
Parker. 2005. Population genetics of the Galápagos Hawk (Buteo
galapagoensis):
Genetic monomorphism within isolated populations. Auk
122:1210-1224.
Worden,
B.D., P.G. Parker. 2005. Females prefer non-infected males as mates
in the grain beetle Tenebrio
molitor:
evidence in pre- and postcopulatory behaviours. Animal
Behaviour 70:1055-1062.
Whiteman,
NK, SJ Goodman, BJ Sinclair, T Walsh, AA Cunningham, LD Kramer,
PG Parker. 2005. Establishment of the avian disease vector Culex
quinquefasciatus
Say, 1823 (Diptera: Culicidae) on the Galápagos Islands, Ecuador.
Ibis
147:844-847.
Randall,
J., K. Rogovin, PG Parker, JA Eimes. 2005. Flexible social structure
of a desert rodent, Rhombomys
opimus:
philopatry, kinship, and ecological constraints. Behavioral
Ecology
16:961-973.
Gottdenker,
N., T. Walsh, H. Vargas, M. Duncan, J. Merkel, G. Jimenez, R.E.
Miller, M. Dailey, P.G. Parker. 2005. Assessing the risks of introduced
chickens and their pathogens to native birds in the Galápagos Archipelago.
Biological
Conservation
126:429-439.
Thiel,
T., N.K. Whiteman, A. Tirape, M.I. Maquero, V. Cedeno, T. Walsh,
G. Jimenez, P.G. Parker. 2005. Characterization of Canarypox-like
Viruses Infecting Endemic Birds in the Galápagos Islands. Journal
of Wildlife Disease
41:342-353.
McGlothlin,
J.W., P.G. Parker, V. Nolan, Jr., E.D. Ketterson. 2005. Correlational
selection leads to genetic integration of body size and an attractive
plumage trait in dark-eyed juncos. Evolution
59:658-671.
Eimes,
JA, PG Parker, JL Brown, E Brown. 2005. Extra-pair fertilization
and genetic similarity of mates in the Mexican Jay. Behavioral
Ecology
16:456-460.
Whiteman,
N.K. & P.G. Parker. 2005. Using parasites to infer host population
history: A new rationale for parasite conservation. Animal
Conservation
8:175-181.
DeMatteo,
KE, KL Karagiannis, CS Asa, MS Macek, TL Snyder, AM Tieber, and
PG Parker. 2004. Semen collection and artificial insemination in
the common piping guan (Pipile
cumanensis cumanensis):
potential applications for Cracidae (Aves: Galliformes). Journal
of Zoo and Wildlife Medicine
35:447-458.
Whiteman,
N.K. and P.G. Parker. 2004. Body condition and parasite load predict
territory ownership in the Galápagos Hawk. Condor
106:915-921.
Whiteman,
N.K. and P.G. Parker. 2004. Effects of host sociality on ectoparasite
population biology. Journal
of Parasitology 90:939-947.
Whiteman,
N.K., D. Santiago-Alarcon, K.P. Johnson, and P.G. Parker. 2004.
Differences in straggling rates between two genera of dove lice
reinforce population genetic and cophylogenetic patterns (Insecta:
Phthiraptera). International
Journal of Parasitology 34(10):
1113-1119.
Parker,
P.G. 2004. Recent insights into sexual selection in bird mating
systems: What Bateman couldn’t have known. Integrative
and Comparative Biology
43:914-914.
Soha,
J.A., D.A. Nelson, P.G. Parker. 2004. Genetic analysis of song dialect
populations in Puget Sound white-crowned sparrows. Behavioral
Ecology
15: 636-646.
Padilla,
LR, D Santiago-Alarcon, JF Merkel, RE Miller, PG Parker. 2004. Survey
for Trichomonas
gallinae, Chlamydophila psitacci, Salmonella
spp. and Haemoproteus
organisms in Columbiformes from the Galápagos Islands. Journal
of Zoo and Wildlife Medicine
35: 60-64.
Padilla,
LR, KP Huyvaert, JF Merkel, RE Miller, PG Parker. 2003. Hematology,
Plasma Chemistry, Serology, and Chlamydophila status of free ranging
adult waved albatrosses (Phoebastria
irrorata)
on Espanola, Galápagos Islands. Journal
of Zoo & Wildlife Medicine 34:278-283.
Kimball,
R.T., P.G. Parker, J.C. Bednarz. 2003. Occurrence and evolution
of cooperative breeding among diurnal raptors (Accipitridae and
Falconidae). Auk
120:717-729.
Bollmer,
J.L., T. Sanchez, M.M. Donaghy Cannon, D. Sanchez, B. Cannon, J.C.
Bednarz, Tj. DeVries, M.S. Struve, P.G. Parker. 2003. Variation
in morphology and mating system among island populations of Galápagos
Hawks. The
Condor
105:428-438.
Jones,
TC and PG Parker. 2002. Delayed dispersal benefits both mothers
and offspring in the cooperative spider Anelosimus
studiosus (Araneae: Theridiidae).
Behavioral
Ecology 13:
142-148.
Pravosudova,
EV, PG Parker, AS Gaunt. 2002. Genetic evidence for extrapair paternity
in the tufted titmouse. Wilson
Bulletin
114:279-281.
Pravosudova,
EV, TC Grubb, Jr, PG Parker. 2001. The influence of kinship on nutritional
condition and aggression levels in winter social groups of tufted
titmice. Condor
103:821-828.
Dearborn,
DC, AD Anders, and PG Parker. 2001. Sexual dimorphism, extra-pair
fertilizations, and operational sex ratio in great frigatebirds
(Fregata
minor).
Behavioral
Ecology
12:746-752.
Worden,
BD and PG Parker. 2001. Polyandry in grain beetles leads to greater
reproductive success: material and genetic benefits? Behavioral
Ecology
12:761-767.
Huyvaert,
KP, DJ Anderson, TC Jones, W Duan, PG Parker. 2000. Extra-pair paternity
in waved albatrosses. Molecular
Ecology
9:1415-1419.
Jones,
T.C. and P.G. Parker. 2000. Costs and benefits of foraging associated
with delayed dispersal in the spider Anelosimus
studiosus
(Araneae, Theridiidae). J.
Arachnology
28: (1) 61-69.
Arguedas,
N & PG Parker. 2000. Seasonal migration and genetic population
structure in house wrens. The
Condor
102:517-528. (Recipient of the 2001 Painton Award for the most significant
and original research published in The
Condor
over the preceding 4 years)
Fiumera,
AC, PG Parker, PA Fuerst. 2000. Effective population size and maintenance
of genetic diversity in captive-bred populations of a Lake Victoria
cichlid. Conservation
Biology
14:886-892.
Worden,
BD, PG Parker, PW Pappas. 2000. Parasites reduce attractiveness
and reproductive success in male grain beetles. Animal
Behaviour
59:543-550.
Parker,
PG, TC Jones, J Haydock, J Dickinson, BD Worden. 1999. Multilocus
minisatellite DNA fingerprinting and cooperative breeding. Behav.
Ecol. Sociobiol.
47:108-111.
Fiumera,
AC, L Wu, PG Parker, PA Fuerst. 1999. Effective population size
in the captive breeding program of the Lake Victoria Cichlid Paralabidochromis
chilotes.
Zoo
Biol. 18:215-222.
Pravosudova,
E.V., T.C. Grubb, Jr., P.G. Parker, & P.F. Doherty, Jr. 1999.
Patch size and composition of social groups in wintering Tufted
Titmice. Auk
116:1153-1156.
Wright,
J, PG Parker, KJ Lundy. 1999. Relatedness and chick-feeding effort
in the cooperatively breeding Arabian babbler (Turdoides
squamiceps).
Animal
Behaviour
58:779-785.
Mauck,
R.A., E.A. Marschall and P.G. Parker. 1999. Adult survival and imperfect
assessment of parentage: effects on male parenting decisions. American
Naturalist
154:99-109.
Bollmer,
J., M.E. Irwin, J.P. Rieder and P.G. Parker. 1999. Multiple paternity
in loggerhead turtles. Copeia
1999:475-478.
Lundy,
KJ, PG Parker, A Zahavi. 1998. Reproduction by subordinates in cooperatively
breeding Arabian babblers is uncommon but predictable. Behav.
Ecol. Sociobiol.
43:173-180.
Raouf,
SA, PG Parker, ED Ketterson, V Nolan, C. Ziegenfus. 1998. Testosterone
affects reproductive success by influencing extra-pair fertilizations
in male dark-eyed juncos (Aves: Junco hyemalis)(vol 264, pg 1599,
1997, correction). Proc, Royal Society of London B: 265:2453-2453.
Parker,
PG, AA Snow, G Booton, M Schug and P Fuerst. 1998. What molecules
can tell us about populations: Choosing and using a molecular marker.
Ecology
79:361-382.
Snow,
AA & PG Parker. 1998. Molecular markers for population biology.
Ecology
79:359-360.
Rabenold,
KN, PT Fauth, BW Goodner, JA Sadowski, PG Parker. 1998. Response
of avian communities to disturbance by an exotic insect in spruce-fir
forests of the Southern Appalachians. Conservation
Biology
12:177-189.
Burley,
N.T. and P.G. Parker. 1998. Emerging themes and questions in the
study of avian reproductive tactics. Pp. 1-20 in: Avian
Reproductive Tactics: Female and Male Perspectives
(P.G. Parker and N.T. Burley, eds.). Ornithological Monographs #49.
The American Ornithologists' Union, Washington, D.C.
Ketterson,
E.D., P.G. Parker, V. Nolan, Jr., S. Raouf and C. Ziegenfus. 1998.
The relative importance of extra-pair fertilizations to male and
female reproductive success in dark-eyed juncos (Junco
hyemalis).
Pp. 81-102 in: Avian
Reproductive Tactics: Female and Male Perspectives (P.G.
Parker and N.T. Burley, eds.). Ornithological Monographs #49. American
Ornithologists' Union, Washington, D.C.
Parker,
PG & NT Burley (eds.). 1998. Avian
Reproductive Tactics: Female and Male Perspectives.
Ornithological Monograph #49. American Ornithologists' Union, Washington,
D.C., 195 pp.
Raouf,
S.A., P.G. Parker, E.D. Ketterson, V. Nolan, Jr. and C. Ziegenfus.
1997. Testosterone affects reproductive success by influencing extra-pair
fertilizations in male dark-eyed juncos, (Aves: Junco
hyemalis.)
Proc.
Royal Society B
264:1599-1603.
Marfori,
MA, PG Parker, TG Gregg, JG Vandenbergh, NG Solomon. 1997. Using
DNA fingerprinting to estimate relatedness within social groups
of pine voles. J.
Mammology
78:715-724.
Waite,
TA, PG Parker. 1997. Extra-pair paternity and the effective size
of socially monogamous populations. Evolution
51: 620-621.
Parker,
P.G. and T.A. Waite. 1997. Mating systems, effective population
size, and conservation of natural populations. Pages 244-262 In
Behavioral
Approaches to Conservation in the Wild
(J Clemmons & R Buchholz, eds.) Cambridge University Press.
Parker,
P.G., T.A. Waite and T. Peare. 1996. Paternity studies in animal
populations. Pages 413-423 In Molecular
Genetic Approaches in Conservation
(T.B. Smith and R.K. Wayne, eds.) Oxford University Press, New York.
Peare,
T, PG Parker. 1996. Local genetic structure within two rookeries
of Chelonia
mydas
(the green turtle). Heredity
77:619-628.
Waite,
T.A. and P.G. Parker. 1996. Dimensionless life histories and effective
population size. Conservation
Biology
10:1456-1462.
DeLay,
L.S., J. Faaborg, J. Naranjo, S.M. Paz, Tj de Vries, P.G. Parker.
1996. Paternal care in the cooperatively polyandrous Galápagos Hawk.
Condor
98:300-311.
Burley,
NT, PG Parker, KJ Lundy. 1996. Sexual selection and extra-pair fertilization
in a socially monogamous passerine, the zebra finch (Taeniopygia
guttata castanotis).
Behavioral
Ecology
7:218-226.
Haydock,
J, PG Parker, KN Rabenold. 1996. Extra-pair paternity uncommon in
cooperatively breeding bicolored wren, Campylorhynchus
griseus.
Behav.
Ecol.
Sociobiol.
38:1-16.
Ketterson,
E.D., V. Nolan, Jr., M.J. Cawthorn, P.G. Parker and C. Ziegenfus.
1996. Phenotypic engineering: using hormones to explore the mechanistic
and functional bases of phenotypic variation in nature. Ibis
138:70-86.
Mauck,
R., T.A. Waite and P.G. Parker. 1995. Monogamy in Leach's Storm-petrel:
DNA fingerprinting evidence. The
Auk
112:473-482.
Piper,
W.H., P.G. Parker and K.N. Rabenold. 1995. Facultative dispersal
by juvenile males in the cooperative stripe-backed wren. Behavioral
Ecology
6: 337-342.
Faaborg,
J., P.G. Parker, L. DeLay, T. de Vries, J.C. Bednarz, S.M. Paz,
J. Naranjo, T.A. Waite. 1995. Confirmation of cooperative polyandry
in the Galápagos Hawk (Buteo
galapagoensis)
using DNA fingerprinting. Behav.
Ecology
and
Sociobiology
36:83-90.
Parker,
PG, TA Waite, MD Decker. 1995. Behavioral association and kinship
in communally roosting black vultures. Animal
Behaviour
49:395-401.
Parker,
P.G. The Vultures of Africa. 1995. (Book review of Mundy, P. D.
Butchart, J. Ledger and S. Piper, The
Vultures
of
Africa)(Wilson
Bulletin
107:392-393).
Parker,
P.G., T.A. Waite, B. Heinrich and J.M. Marzluff. 1994. Do common
ravens share food bonanzas with kin? DNA fingerprinting evidence.
Animal
Behav.
48:1085-1093.
Parker,
PG, HH Whiteman. 1993. Genetic diversity in fragmented populations
of Clemmys
guttata
and Chrysemys
picta marginata
as shown by DNA fingerprinting. Copeia
1993:841-846.
Decker,
MD, PG Parker, DJ Minchella and KN Rabenold. 1993. Monogamy in black
vultures (Coragyps
atratus):
genetic evidence from DNA fingerprinting. Behav.
Ecol.
4:29-35.
Piper,
W.H. and Parker Rabenold, P. 1992. Use of fragment-sharing estimates
from DNA fingerprinting to determine relatedness in a tropical wren.
Molecular
Ecology
1:69-78.
Parker,
P.G. and M. Schug. 1992. Molecular techniques in population ecology.
(book review of AR Hoelzel and GA Dover, Molecular
Genetic
Ecology).
Trends
in Ecol. Evol.
7:283.
Rabenold,
P.P., K.N. Rabenold, W.H. Piper, and D.J. Minchella. 1991. Densitydependent
dispersal in social wrens: Genetic analysis using novel matriline
markers. Animal
Behaviour
42:144147.
Rabenold,
P.P., W.H. Piper, M.D. Decker, and D.J. Minchella. 1991. Polymorphic
minisatellite amplified on avian W chromosome. Genome
34:489493.
Rabenold,
P.P., K.N. Rabenold, W.H. Piper, M.D. Decker, and J. Haydock. 1991.
Using DNA fingerprinting to assess kinship and genetic structure
in avian populations. pp. 611620 In:
The Unity of Evolutionary Biology:
Proc. IV Int. Cong. Syst. Evol. Biol. (E.C. Dudley, ed.), Dioscorides
Press, Portland, Oregon.
Rabenold,
P.P. 1991. DNA Fingerprinting: An introduction. by Lorne T. Kirby
(book review). Trends
in
Ecol.
Evol.
6:306.
Rabenold,
P.P. Black Vultures. 1990. In:
Endangered,
threatened, and rare fauna of North Carolina. III. A reevaluation
of birds.
(D.S. Lee and J.F. Parnell, eds.) Occ. Papers of N.C. Biological
Survey. Raleigh, N.C.
Rabenold,
P.P. 1983. The communal roost in Black and Turkey Vultures an information
center? pp. 303321 In
Wilbur, S.R. and J.A. Jackson, eds., Vulture
Biology
and
Management,
University of California Press, Berkeley.
Rabenold,
PP, KN Rabenold, WH Piper, J Haydock, SW Zack. 1990. Shared paternity
revealed by genetic analysis in cooperatively breeding tropical
wrens. Nature
348: 538540.
Rabenold,
P.P. and M.D. Decker. 1989. Black and Turkey Vultures expand their
ranges northward. Natl. Wildl. Fed. EYAS
12: 1115.
Rabenold,
PP 1987. Recruitment to food in black vultures: evidence for following
from communal roosts. Animal
Behaviour
35: 17751785.
Rabenold,
PP 1987. Roost attendance and aggression in black vultures. Auk
104: 647653.
Rabenold,
PP 1986. Family associations in communally roosting Black Vultures.
Auk
103: 3241.
Rabenold,
KN, PP Rabenold. 1985. Variation in altitudinal migration, winter
segregation, and site tenacity in two subspecies of Darkeyed Juncos
in the southern Appalachians. Auk
102: 805819.
Mueller,
H.C., N.S. Mueller, and P.G. Parker. 1981. Notes on observations
of a brood of sharpshinned hawks with comments on the functions
of reversed sexual size dimorphism. Wilson
Bulletin
93: 8591.
Wallace,
M.P., P.G. Parker, and S.A. Temple. 1980. An evaluation of patagial
markers for cathartid vultures. J.
Field
Ornithol.
51: 309314.
Mueller,
H. C. and P. G. Parker. 1980. Naive ducklings show different cardiac
response to hawk than to goose models. Behaviour
78: 101113.
