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Dhondt, Andre Alfons
Professor and Edwin H. Morgens Professor of Ornithology, Cornell Laboratory of Ornithology
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- Professor, Cornell Laboratory of Ornithology (CLO)
- Professor, Ecology and Evolutionary Biology (EEB), College of Agriculture and Life Sciences (CALS)
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- Research
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Affiliations
other Cornell affiliations
Extension
has primary specialization area
Research
research overview
- The aim of my research is to identify selection pressures that operate on individuals in natural populations. My research interests are, therefore, in ecology, behavior, behavioral ecology, evolution, genetics, and conservation biology, mainly of birds. My research interests have generated collaboration with molecular biologists and studies of populations in fragmented habitats, effects of disease, predation, and inter-specific competition, behavioral mechanism, quantitative genetics, etc. Most of my research, and that of my students, has been a combination of population and behavioral ecology that began by studying the fates of individually marked individuals and has included various disciplines such as population ecology, behavioral ecology, population genetics, epidemiology. When I moved to Cornell University in 1994 I took advantage of the great opportunities offered by the “Citizen Science” approach to address questions at a continental scale. I helped expand “Project Tanager” and start “Birds in Forested Landscapes,” two projects that attempted to study effects of habitat fragmentation all across North America. Confronted with an apparent epidemic of an unknown eye disease in house finches in mid-1994 I started the “House Finch Disease Survey.” This project was unusually successful at tracking the epidemic of a new strain of the parasitic bacterium Mycoplasma gallisepticum in house finches and was able to document how house finch numbers declined by about 60% because of this newly emerged disease. Since September 2000 this project has developed into an NIH/NSF-funded 5-year attempt to understand in great detail the underlying mechanisms that caused the epidemic and translate our understanding into a spatio-temporal mathematical model. The research team also includes several graduate students in the departments of E&EB, Natural Resources, and the Vet School.
research activities
principal investigator on
area(s) of concentration/expertise
- Animal Behavior
- Animal Behavior, Chemical Ecology, Insect-Plant Interactions
- Avian Ecology and Evolutionary Biology
- Avian Evolutionary Biologist
- Biological Statistics and Population Dynamics
- Birds and Agriculture
- Conservation
- Disease Control and Epidemiology
- Evolutionary Biology
- Morgens Professor of Ornithology
- Ornithology
- Pathogen biology/pathogen ecology/epidemiology
keywords
- animal ecology
- behavioral ecology
- biometry
- disease ecology
- ecology
- evolutionary biology
- host-pathogen interactions
- organismal biology
- ornithology
- population ecology
- zoogeography
geographic focus
submitted impact statement
- Study of the composition and function of preen gland secretions in birds
- Study of the composition and function of preen gland secretions in birds
- Study of composition and function of preen gland secretions in birds
- Study of an emerging bacterial disease in birds
- New and emerging disease in wild bird populations
Publications
individual publications
-
academic article
- Pathogenicity and immunogenicity of three Mycoplasma gallisepticum isolates in house finches (Carpodacus mexicanus).. Veterinary Microbiology. 155:53-61. 2012
- Understanding the origin of seasonal epidemics of mycoplasmal conjunctivitis.. Journal of Animal Ecology. 81:996-1003. 2012
- Biology of House Finch feather mites, Proctophyllodes pinnatus (Acari: Proctophyllodidae), parallels variation in preen gland secretions . International Journal of Acareology. 37:75-90. 2011
- Common garden experiment reveals pathogen isolate but no host genetic diversity effect on the dynamics of an emerging wildlife disease. Journal of Evolutionary Biology. 23:1680-1688. 2010
- Composition of Preen Gland Secretions of Tropical Birds. Biochemical Systematics. 37:60-90. 2009
- Diversity in chemical compositions of preen gland secretions of tropical birds. Biochemical Systematics and Ecology. 37:80-90. 2009
- Seasonal Variation in Preen Gland Secretions of House Finches and Feather Mites. Biochemical Systematics. 39. 2009
- Spatial variation in an avian host community: implications for disease dynamics. Ecohealth. 6:540-545. 2009
- Comparative infectiousness of three passerine bird species after experimental inoculation with Mycoplasma gallisepticum. Avian Pathology. 37:635-640. 2008
- Habitat fragmentation lowers survival of a tropical forest bird. Ecological Applications. 18:838-846. 2008
- Reconciling molecular signatures across markers: Mitochondrial DNA confirms founder effect in invasive North American house finches (Carpodacus mexicanus). Conservation Genetics. 9:637-643. 2008
- Wing-flashing in Northern mockingbirds: Anti-predator defense?. Journal of Ethology. 26:361-365. 2008
- Avian species richness and reproduction in short-rotation coppice habitats in central and western New York. Bird Study. 54:12-22. 2007
- Effects of route of inoculation on Mycoplasma gallisepticum infection in captive house finches. Avian Pathology. 6:475-479. 2007
- Experimental evidence for transmission of Mycoplasma gallisepticum in house finches by fomites. Avian Pathology. 36:205-208. 2007
- Fitness-heterozygosity associations differ between male and female winter moths Operophtera brumata L. Belgian Journal of Zoology. 137:41-45. 2007
- House Finch roosting behaviour during the non-breeding season and possible effects of mycoplasmal conjunctivitis. Ibis. 147:1-9. 2007
- Mycoplasma gallisepticum infection in House Finches (Carpodacus mexicanus) affects mosquito blood feeding patterns. American Journal of Tropical Medicine & Hygiene. 77:488-494. 2007
- Mycoplasmal conjunctivitis influences foraging and social behavior in house finches. Canadian Journal of Zoology. 85:752-757. 2007
- Pathogen resistance and immunocompetence covary with social status in house finches (Carpodacus mexicanus). Functional Ecology. 21:520-527. 2007
- Two contrasting natural experiments confirm interspecific competition between house finches on house sparrows. Ecology. 88:864-870. 2007
- Anticipatory reproduction and population growth in seed predators. Science. 314:1928-1930. 2006
- Characterization of experimental Mycoplasma gallisepticum infection in captive house finch flocks. Avian Diseases. 50:39-44. 2006
- Dynamics of mycoplasmal conjunctivitis in the native and introduced range of the host. Ecohealth. 3:95-102. 2006
- Further western spread of Mycoplasma gallisepticum infection of house finches. Journal of Wildlife Diseases. 42:429-431. 2006
- Geographical and seasonal gradients in hatching failure in Eastern Bluebirds Sialia sialis reinforce clutch size trends. Ibis. 148:221-230. 2006
- House Finch (Carpodacus mexicanus) population- and group-level responses to bacterial disease. Ornithological Monographs. 60:30-43. 2006
- Molecular evidence for a founder effect in invasive house finch (Carpodacus mexicanus) populations experiencing and emergent disease epidemic. Molecular Ecology. 15:263-275. 2006
- Mycoplasmal conjunctivitis spreads more slowly in native than in introduced range of the host. Ecohealth. 3:95-102. 2006
- Phylogeographic structuring of Plasmodium lineages across the North American range of the House finch (Carpodacus mexicanus). Journal of Parasitology. 92:1043-1049. 2006
- Spatial spread of an emerging infectious disease: Conjunctivitis in house finches - seasonal rates and geographic barriers. Ecology. 87:3037-3046. 2006
- Warm temperatures lead to early onset of incubation, shorter incubation periods and greater hatching asynchrony in tree swallows Tachycineta bicolor at the extremes of their range. Journal of Avian Biology. 37:137-142. 2006
- A parametric model for estimation of dispersal patterns applied to five passerine spatially structured populations. American Naturalist. 165. 2005
- Chemistry of preen gland secretions of passerines: Different pathways to same goal? Why? . Chemoecology. 15:251-260. 2005
- Egg viability as an explanation for seasonal and latitudinal trends in clutch size. Ecology. 86:2018-2031. 2005
- Genetic diversity predicts pathogen resistance and cell-mediated immunocompetence in house finches. Biology Letters. 1:326-329. 2005
- Latitudinal trends in within-year reoccupation of nest boxes and their implications. Journal of Avian Biology. 36:31-39. 2005
- Re-exposure of captive house finches that recovered from Mycoplasma gallisepticum infection. Journal of Wildlife Diseases. 41:326-333. 2005
- Clone preference by nesting birds in short-rotation coppice plantations in Central and Western New York. Biomass and Bioenergy. 27:429-435. 2004
- Experimental infection of house finches with Mycoplasma gallisepticum. Journal of Wildlife Diseases. 40:79-86. 2004
- Impact of West Nile Virus on American Crows in the Northeastern United States, and its relevance to existing monitoring programs. Ecohealth. 1:60-69. 2004
- Seasonal dynamics of mycoplasmal conjunctivitis in eastern North American house finches. Journal of Animal Ecology. 73:309-322. 2004
- Seasonality and wildlife disease: How seasonal birth, aggregation and variation in immunity affect the dynamics of Mycoplasma gallisepticum in house finches. Proceedings of the Royal Society of London Series B. 271:2569-2577. 2004
- Climate variation and regional gradients in population dynamics of two hole nesting passerines. Proceedings of the Royal Society of London Series B. 270:2397-2404. 2003
- Variable responses to large-scale climate change in European Parus populations. Proceedings of the Royal Society of London Series B. 270:367-372. 2003
- Adverse effects of acid rain on the distribution of the Wood Thrush Hylocichla mustelina in North America. Proceedings at the National Academy of Science USA. 99:11235-11240. 2002
- Changing mates. Trends in Ecology and Evolution. 17:55-56. 2002
- Effects of forest fragmentation on tanager and thrush species in eastern and western North America. Studies in Avian Biology. 25:81-91. 2002
- Geographic differences in seasonal clutch size variation in multi-brooded bird species. Ibis. 144:646-651. 2002
- Multistate recapture models: Modeling incomplete individual histories - Why are we doing all this? (Discussion Comments) . Journal of Applied Statistics. 29:371-372. 2002
- Adaptive sex ratios and parent—offspring conflict. Trends in Ecology and Evolution. 16:61-62. 2001
- Dynamics of conjunctivitis and Mycoplasma gallisepticum infections in house finches. Auk. 118:327-333. 2001
- Host range and dynamics of mycoplasmal conjunctivitis among birds in North America. Journal of Wildlife Diseases. 37:7281. 2001
- Life history trade-offs in tits. Ardea. 89:153-166. 2001
- Local recruitment of great and blue tits (Parus major, P. caeruleus) in relation to study plot size and degree of isolation. Ecography. 24:33-42. 2001
- Measuring bird migration using spatial and temporal counts and response. Chance. 14:7-14. 2001
- Site reoccupation in fragmented landscapes: Testing predictions of metapopulation theory. Journal of Animal Ecology. 70:182-190. 2001
- The house finch hot zone: Citizen science on the trail of an epidemic. Living Bird. 20:24-30. 2001
- Variations in calcium use by birds during the breeding season. Condor. 103:592-598. 2001
- Density-dependent decline of host abundance resulting from a new infectious disease. Proceedings at the National Academy of Science USA. 97:5303-5306. 2000
- Effects of forest fragmentation on breeding tanagers: A continental perspective. Conservation Biology. 13:568-583. 1999
- Experiments on competition between Great and Blue Tit: Effects on Blue Tit reproductive success and population processes. Ostrich. 70:39-48. 1999
- Forest birds in forest fragments: Are fragmentation effects independent of season? . Bird Study. 46:279-288. 1999
- Forest fragmentation and breeding tanagers: a continental perspective. Conservation Biology. 13:568-583. 1999
- Irruptive migration of common redpolls. Condor. 101:195-204. 1999
- Between cohort variation in dispersal distance in the European Kestrel Falco tinnunculus as shown by ringing recoveries. Ardea. 86:147-152. 1998
- Effects of habitat fragmentation on provisioning rates, diet and breeding success in two species of tit (great tit and blue tit). Oecologia. 114:522-530. 1998
- Epidemic mycoplasmal conjunctivitis in house finches from Eastern North America. Journal of Wildlife Diseases. 34:265-280. 1998
- Feeder counts as indicators of spatial and temporal variation in winter abundance of resident birds. Journal of Field Ornithology. 69:577-586. 1998
- Genetic population structure of the winter moth (Operophtera brumata L.) (Lepidoptera, Geometridae) in a fragmented landscape. Heredity. 80:92-100. 1998
- Inbreeding and divorce in blue and great tits. Animal Behaviour. 56:737-740. 1998
- Mate selection by male winter moths Operophtera brumata (Lepidoptera, Geometridae): Adaptive male choice or female control? . Behaviour. 135:29-42. 1998
- Risk factors associated with mycoplasmal conjunctivitis in house finches. Journal of Wildlife Diseases. 34:281-288. 1998
- Sparrowhawk Accipiter nisus predation and Blue Tit Parus caeruleus adult annual survival rate. Ibis. 140:580-584. 1998
- Spatial and temporal variation in winter abundance of resident birds: the contribution of backyard feeder counts. Journal of Field Ornithology. 69:577-586. 1998
- Stabilizing selection on blue tit fledgling mass in the presence of sparrowhawks. Proceedings of the Royal Society of London Series B. 265:1011-1016. 1998
- Differentiation among blue tit (Parus caeruleus) populations measured with five minisatellite single locus probes. Belgian Journal of Zoology. 127:179-189. 1997
- Does the dominant Nuthatch Sitta europaea affect the foraging behaviour of the subordinate Treecreeper Certhia brachydactyla in small forest fragments? . Ardea. 85:259-267. 1997
- Effects of habitat fragmentation on foraging behaviour of tits and related species: Does niche space vary in relation to size and degree of isolation of forest fragments? . Ecography. 20:281-286. 1997
- Extra-pair paternity in the blue tit (Parus caeruleus): Female choice, male characteristics and offspring quality. Behavioral Ecology. 8:481-492. 1997
- How much memory do tits need? . Trends in Ecology and Evolution. 12:417-418. 1997
- Mate locating strategies are related to relative body length and wing colour in the speckled wood butterfly Pararge aegeria. Ecological Entomology. 22:116-120. 1997
- Mating games. Living Bird. 16:28-32. 1997
- Mycoplasmal conjunctivitis in wild songbirds: The spread of a new contagious disease in a mobile host population. Emerging Infectious Diseases. 3:69-72. 1997
- Nest predation in Black-capped Chickadees: How safe are cavity nests?. Auk. 114:769-773. 1997
- Seasonal phenotypic variation in the speckled wood butterfly (Pararge aegeria L.): Patterns in and relationship between wing characters. Belgian Journal of Zoology. 127:167-178. 1997
- Settlement behaviour and population dynamics of reintroduced red squirrels Sciurus vulgaris in a park in Antwerp, Belgium. Biological Conservation. 82:101-107. 1997
- Spelet om parningen. Anser. 36:165-170. 1997
- Synchronization of hatching date with budburst of individual host trees (Quercus robur) in the winter moth (Operophtera brumata) and its fitness consequences. Journal of Animal Ecology. 66:113-121. 1997
- The effect of wing colour on male behavioural strategies in the speckled wood butterfly. Animal Behaviour. 53:39-51. 1997
- Why female crested tits copulate repeatedly with the same partner: Evidence for the mate assessment hypothesis. Behavioural Ecology. 8:87-91. 1997
- Fluctuating asymmetry and body size as indicators of stress in red squirrel populations in woodland fragments. Journal of Applied Ecology. 53:735-740. 1996
- Genetic similarity, inbreeding and hatching failure in blue tits: Are unhatched eggs infertile? . Proceedings of the Royal Society of London Series B. 263:179-185. 1996
- Molecular techniques in conservation and evolutionary biology: A quantum leap? . Trends in Ecology and Evolution. 11:147-148. 1996
- Ploughing behaviour of Babirousa babyrussa (Suidae, Mammalia) suggests a scent-marking function. Journal of Zoology, London. 238:209-219. 1996
- Population cycles in the Varied Thrush (Ixoreus naevius). Canadian Journal of Zoology. 74:2062-2069. 1996
- Population cycles in the varied thrush (Ixoreus naevius). Canadian Journal of Zoology. 74:2062-2069. 1996
- Restricted male winter moth (Operophtera brumata L.) dispersal among host trees. Acta Oecologica. 17:319-329. 1996
- Dispersal distances of Nuthatches, Sitta europaea, in a highly fragmented forest habitat. Oikos: A Journal of Ecology. 72:375-381. 1995
- Diverse effects of forest fragmentation on a number of animal species. Belgian Journal of Zoology. 125:175-183. 1995
- Fitness consequences of hoarding behaviour in the Eurazian red squirrel. Proceedings of the Royal Society of London Series B. 262:277-281. 1995
- Lifetime reproductive success and its correlates in female Eurasian red squirrels. Oikos: A Journal of Ecology. 72:402-410. 1995
- Mate guarding and copulation behaviour in monogamous and polygynous blue tits: Do males follow a best-of-a-bad-job strategy? . Behavioral Ecology and Sociobiology. 36:33-42. 1995
- The genetic structure of Parus caeruleus (blue tit) populations as revealed by minisatellite single locus probes. Heredity. 75:571-577. 1995
- Variation in territory fidelity and territory shifts among red squirrel Sciurus vulgaris females. Animal Behaviour. 49:187-193. 1995
- Age-related hoarding strategies in the crested tit Parus cristatus: Should the cost of subordination be re-assessed?. Journal of Animal Ecology. 63:749-755. 1994
- Causes and effects of divorce in the Blue Tit Parus caeruleus L. Journal of Animal Ecology. 63:979-987. 1994
- Effect of habitat fragmentation on the timing of crested tit Parus cristatus dispersal. Ibis. 136:147-152. 1994
- Effects of forest fragmentation on the population structure of winter moth Operophtera brumata L. (Lepidoptera, Geometridae). Acta Oecologica. 15:193-206. 1994
- Great Crested Grebe Podiceps cristatus chick mortality in relation to parental fishing. Bird Study. 41:211-220. 1994
- Identification of hypervariable single locus minisatellite DNA probes in the blue tit Parus caeruleus. Molecular Ecology. 3:137-143. 1994
- Nest-building by crested tit Parus cristatus males: An analysis of costs and benefits. Behavioral Ecology and Sociobiology. 35:431-436. 1994
- Space use and dispersal of red squirrels in fragmented habitats. Oikos: A Journal of Ecology. 69:140-146. 1994
- Survival and lifetime reproductive success in dispersing and resident red squirrels. Behavioral Ecology and Sociobiology. 34:197-201. 1994
- The effects of habitat fragmentation on demography and on the loss of genetic variation in the Red Squirrel. Proceedings of the Royal Society of London Series B. 255:107-111. 1994
- Artificial nest predation and habitat fragmentation: Different trends in bird and mammal predators. Ecography. 16:111-116. 1993
- Body mass at weaning and juvenile recruitment in the red squirrel. Journal of Animal Ecology. 62:280-286. 1993
- Conservation biology of birds: Can we bridge the gap between head and heart? . Trends in Ecology and Evolution. 8:160-161. 1993
- Extra-pair paternity and intraspecific brood parasitism in the European starling (Sturnus vulgaris): Evidence from DNA fingerprinting. Animal Behaviour. 45:795-809. 1993
- Immigration pattern and success in red squirrels. Behavioral Ecology and Sociobiology. 33:159-167. 1993
- Individual variation in mate care by alpha males in crested tit winter flocks. Behavioral Ecology and Sociobiology. 33:79-85. 1993
- Why do females engage in extra-pair copulations? A review of the hypotheses and their predictions. Belgian Journal of Zoology. 123:41-51. 1993
- A positive correlation between naturally captured prey, growth and flowering in Drosera intermedia in two contrasting habitats. Belgian Journal of Botany. 125:33-40. 1992
- Activity budget and foraging behaviour of red squirrels in coniferous and deciduous habitats. Journal of Zoology, London. 227:71-86. 1992
- Density-dependent clutch size caused by habitat heterogeneity. Journal of Animal Ecology. 61:643-648. 1992
- Evolution of body weight in pregnant okapis (Okapia johnstoni). Acta Zoologica et Pathologica Antverpiensia. 82:29-34. 1992
- Experimental test of an hypothesis explaining density dependent clutch-size in tits Parus spp. Ibis. 134:192-194. 1992
- Extra-pair paternity caused by female preference in the Blue Tit. Nature (London). 357:494-496. 1992
- Foraging of the great crested grebe in relation to food supply. Journal of Animal Ecology. 61:659-667. 1992
- Individual voice recognition in birds. Trends in Ecology and Evolution. 7:178-179. 1992
- Sources of variation in male mating success and female oviposition rate in a nonterritorial dragonfly. Behavioral Ecology and Sociobiology. 29:17-25. 1992
- Spacing behaviour of red squirrels, Sciurus vulgaris: Variation between habitats and the sexes. Animal Behaviour. 43:297-311. 1992
- The demography of a clonal herbaceous perennial plant, the long-leaved Sundew Drosera intermedia in different heatland habitats. Ecography. 15:129-143. 1992
- The effect of a severe storm on a population of Crested Tits Parus cristatus in Belgium. Bird Study. 39:31-33. 1992
- The reproductive behaviour of a clonal herbaceous plant, the long-leaved Sundew Drosera intermedia in different heatland habitats. Ecography. 15:144-153. 1992
- Variation in coherence of crested tit winter flocks: An example of multivariate optimization. Acta Oecologica. 13:553-567. 1992
- Characteristics of dispersal in sexually mature dragonflies. Ecological Entomology. 16:449-459. 1991
- Competition between blue and great tit for roosting sites in winter: An aviary experiment. Ornis Scandinavica. 22:73-75. 1991
- Density dependence, teta selection and the exploitation of animal populations. Gibier Faune Sauvage. 8:297-307. 1991
- How unreliable are cuckoldry estimates using heritability analyses? . Ibis. 113:91-94. 1991
- Phenology, habitat choice and reproduction of the Great Crested Grebe Podiceps cristatus L., on a fish-farm. Ardea. 79:395-408. 1991
- Sexual dimorphism in bill length and breeding success in Great and Blue Tits (Parus major, P. caeruleus). Ornis Scandinavica. 22:171-173. 1991
- The many meanings of great tit song. Belgian Journal of Zoology. 121:247-256. 1991
- A relationship between the composition and size of great tit song repertoires. Animal Behaviour. 39:213-218. 1990
- Bird migration. Nature, London. 347:23. 1990
- Costs and benefits associated with oviposition site selection in the dragonfly Sympetrum danae (Odonata: Libellulidae). Animal Behaviour. 40:668-678. 1990
- Effects of inbreeding on juvenile survival of the Okapi Okapia johnstoni in captivity. Biological Conservation. 54:147-155. 1990
- Factors affecting male mating success in red squirrels (Sciurus vulgaris). Ethology, Ecology and Evolution. 2:195-204. 1990
- Nest-use by red squirrels (Sciurus vulgaris Linnaeus, 1758). Mammalia. 54:377-389. 1990
- Non-adaptive clutch-sizes in tits: Evidence for the gene flow hypothesis. Nature (London). 348:723-725. 1990
- Population dynamics and partial migration of the European robin (Erithacus rubecula) in different habitats. Journal of Animal Ecology. 59:1077-1090. 1990
- Red squirrel (Sciurus vulgaris Linnaeus, 1758) population dynamics in different habitats. Z. Säugetierkunde. 55:161-175. 1990
- Territoriality in the continental European robin. Ardea. 78:459-465. 1990
- Body weight, longevity and reproductive success in red squirrels (Sciurus vulgaris). Journal of Animal Ecology. 58:637-651. 1989
- Differences in male and female activity patterns in the dragonfly Sympetrum danae Sulzer and their relation to mate finding (Odonata: Libellulidae). Odonatologica. 18:349-364. 1989
- Direct and indirect estimates of sperm precedence and displacement in the dragonfly Sympetrum danae (Odonata: Libellulidae). Behavioral Ecology and Sociobiology. 23:257-263. 1989
- Ecological and evolutionary effects of interspecific competition in tits, Parus spp. The Wilson Bulletin. 101:198-216. 1989
- Een waarschijnlijk derde broedsel van een Roodborst Erithacus rubecula. Oriolus. 55:81-83. 1989
- Effects of emergence characteristics on longevity and maturation in the dragonfly Sympetrum danae (Anisoptera: Libellulidae). Hydrobiologia. 171:149-158. 1989
- Perspectives in population biology. Annales de la Société Royale de Zoologie de Belgique. 119:65-67. 1989
- Variation in length and body weight of the Red Squirrel (Sciurus vulgaris) in two different habitats. Journal of Zoology. 217:93-106. 1989
- Weight loss of the female during the first brood as a factor influencing second brood initiation in Great Tit Parus major and Blue Tit P. caeruleus. Ibis. 131:281-289. 1989
- Behaviour of birds after release from capture as an indicator of territorial status. The Ibis. 130:69-72. 1988
- Carrying capacity: A confusing concept. Acta Oecologica Oecologia Generalis. 9:337-346. 1988
- Male quality and territory quality in the great tit Parus major. Animal Behaviour. 36:596-601. 1988
- Seasonal changes in habitat use of white fronted geese near Antwerp, Belgium. Wildfowl. 39:54-62. 1988
- The anti exhaustion hypothesis: A new hypothesis to explain song performance and song switching in the great tit. Animal Behaviour. 36:327-334. 1988
- The effect of old age on the reproduction of Great and Blue Tit. The Ibis. 131:268-280. 1988
- The studbook population of the Okapi Okapia johnstoni: Some remarks on the current demographic and population genetic status. Acta Zoologica et Pathologica Antverpiensia. 80:53-64. 1988
- The use of red squirrel (Sciurus vulgaris) dreys to estimate population density. Journal of Zoology, London. 214:179-187. 1988
- Un demi siècle d'étude sur les Passeraux à partir de l'exemple des Mésanges. Alauda. 56:378-390. 1988
- Activity budget and foraging behaviour of the red squirrel (Sciurus vulgaris Linnaeus, 1758) in a coniferous habitat. Zeitschrift für Säugetierkunde. 52:341-353. 1987
- Blue Tits are polygynous but Great Tits monogamous: Does the polygyny threshold model hold? . American Naturalist. 129:213-220. 1987
- Coexistence of three Sympetrum species at Den Diel, Mol, Belgium. Odonatologica. 16:347-360. 1987
- Cycles of lemmings and Brent Geese Branta b. bernicla: A comment on the hypothesis of Roselaar and Summers. Bird Study. 34:151-154. 1987
- Differences in singing performance between male Great Tits. Ardea. 75:43-52. 1987
- Dynamics of long leaved sundew Drosera intermedia populations at two extremes of a hydrological gradient. Holarctic Ecology. 10:299-307. 1987
- Reproduction and survival of polygynous and monogamous Blue Tit Parus caeruleus. Ibis. 129:327-334. 1987
- Resultaten van 25 jaar mezenonderzoek in Vlaanderen. Deel 1 De studie van aantalsschommelingen bij mezen. Oriolus. 53:101-109. 1987
- Resultaten van 25 jaar mezenonderzoek in Vlaanderen. Deel 2 De studie van individuele verschillen. Oriolus. 53:110-117. 1987
- Survival of breeding female starlings in relation to brood size. Acta Oecologia – Oecologia Generalis. 8:427-433. 1987
- The establishment of a breeding population of the Pied Flycatcher Ficedula hypoleuca in the Peerdsbos, near Antwerp. Giervalk. 77:333-339. 1987
- Dichtheid en home ranges van een populatie eekhoorns Sciurus vulgaris L.,1758 in België. Lutra. 29:243-260. 1986
- Influences of habitat structure and temperature on the foraging niches of the Pariform Guild in Belgium during winter. Giervalk. 75:109-129. 1986
- Male quality, reproduction and survival in the Great Tit. Behavioral Ecology and Sociobiology. 19:57-63. 1986
- Over de Zwartkopboomklever Sitta whiteheadi Sharpe. Oriolus. 52:49-54. 1986
- The effect of an extreme winter on per capita growth rates in some resident bird populations: An example of r selection? . Biological Journal of The Linnean Society. 28:301-314. 1986
- Do old Great Tits forego breeding?. Auk. 102:870-872. 1985
- Variations in plasma testosterone levels in a Great Tit population. General and Comparative Endocrinology. 59:277-286. 1985
- Dynamics of a robin population outside the breeding season. Bird Study. 31:69-75. 1984
- Habitat and laying date in Great and Blue Tit. Ibis. 126:388-397. 1984
- Vocalizations in a Belgian Blue Tit population. Giervalk. 74:243-269. 1984
- Die Ansiedlung junger Kleiber im Spätsommer und Herbst. Journal für Ornithologie. 124:281-290. 1983
- Laying interruptions in Tits Parus spp. The Ibis. 125:370-376. 1983
- Micro evolutie bij vogels. Wielewaal. 49:45-50. 1983
- Polygyny by Blue Tits. British Birds. 76:34-37. 1983
- Reproductive success of the Great Tit in relation to its territorial status. Animal Behaviour. 31:902-912. 1983
- Variations in the number of overwintering Stonechats possibly caused by natural selection. Ringing and Migration. 4:155-158. 1983
- Blue Tit territories at different density levels. Ardea. 70:185-188. 1982
- Heritability of Blue Tit tarsus length from normal and cross fostered broods. Evolution. 36:418-419. 1982
- Postnuptial moult of the Great Tit in Southern Sweden. Ornis Scandinavica. 12:127-133. 1981
- Variations in survival and dispersal with ringing date as shown by recoveries of Belgian Great Tits Parus major. The Ibis. 123:96-98. 1981
- Competition and the regulation of numbers in Great and Blue Tit. Ardea. 68:121-132. 1980
- Competition between Great Tit and the Blue Tit outside the breeding season in field experiments. Ecology. 61:1291-1296. 1980
- Experimental confirmation of heritable morphological variation in a natural population of Song Sparrows. Evolution. 34:1155-1158. 1980
- Postnuptial molt of the song sparrow on Mandarte Island in relation to breeding. Canadian Journal of Zoology. 58:513-520. 1980
- Ringing dates of first broods of the Great Tit in different parts of Belgium and in relation to spring temperatures. Giervalk. 70:113-118. 1980
- Summer dispersal and survival of juvenile Great Tits in Southern Sweden. Oecologia (Berl.). 42:139-157. 1979
- Temperature and date of laying by tits Parus spp. Ibis. 121:329-331. 1979
- Will Great Tits become Little Tits? . Biological Journal of the Linnean Society. 11:289-294. 1979
- Gedrag en regulatie van aantallen in vogelpopulaties. De Wielewaal. 44:65-75. 1978
- Interspecific competition in tits: Reply. Nature (London). 275:463-464. 1978
- Oxygen binding characteristics of three extracellular haemoglobins of Artemia salina. Biochemical Journal. 171:705-710. 1978
- Tits sitting on empty nests. British Birds. 71:600. 1978
- An analysis of Belgian ringing recoveries of the common snipe: Movements and survival. Giervalk. 67:83-99. 1977
- Breeding and postnuptial molt of the Red vented Bulbul in Western Samoa. The Condor. 79:257-260. 1977
- Interspecific competition between Great and Blue Tit. Nature (London). 268:521-523. 1977
- Bird notes from the Kingdom of Tonga. Notornis. 23:47. 1976
- Bird observations in Western Samoa. Notornis. 23:29-43. 1976
- Effects of juvenile hormone mimics on the Coconut Rhinoceros Beetle. Journal of Economic Entomology. 69:427-428. 1976
- Une nidification de l'Engoulevent à collier Caprimulgus enarratus. L'Oiseau et la Revue Française d'Ornithologie. 46:173-174. 1976
- Note sur les Echassiers (Charadrii) de Madagascar. L'Oiseau et la Revue Française d'Ornithologie. 45:73-82. 1975
- Ecologie des populations de mésanges charbonnières (Parus m.major L.) en Basse Belgique. Annales de la Société Royale de Zoologie de Belgique. 103:37-41. 1973
- Postjuvenile and postnuptial moult in a Belgian population of Great Tits, Parus major, with some data on captive birds. Giervalk. 63:187-210. 1973
- A simple method for trapping adults in nesting boxes. Bird Banding. 42:119-121. 1971
- Anemonen en anemoonvissen: Een echte symbiose? . Zoo. 36:209-213. 1971
- Bird catching in Belgium. Angewandte Ornithologie. 3:142. 1971
- De bescherming van commensale Pomacentridae tegen het netelen van hun gastheren een literatuuroverzicht. Biologisch Jaarboek Dodonea. 39:197-206. 1971
- Some factors influencing territory in the Great Tit Parus major L. Giervalk. 61:125-135. 1971
- The sex ratio of nestling Great Tits. Bird Study. 17:282-286. 1970
- A nestling Great Tit Parus major with a deformed left wing. Giervalk. 59:276-277. 1969
- Broedpoging van de Turkse Tortel in januari. Giervalk. 59:112. 1969
- Een geval van hybridisatie tussen een glanskopmees (Parus palustris) en een matkopmees (Parus montanus) te Gent. Giervalk. 59:374-377. 1969
- Some observations on the avifauna of West Spitsbergen, 1965. Giervalk. 59:219-238. 1969
- Age and territory in the Great Tit Parus m. major L. Applied Ornithology. 3:20-24. 1968
- Fledging date and sex in relation to dispersal in young Great Tits. Bird Study. 15:127-134. 1968
- Langdurige legonderbreking van de leg bij de Pimpelmees Parus caeruleus. Giervalk. 58:396. 1968
- Ongewoon kleine koolmeeseieren, Parus major. Giervalk. 58:394. 1968
- Twee gevallen van drie opeenvolgende legsels bij de koolmees Parus major. Giervalk. 58:166-167. 1968
- Enige mogelijkheden van het nestkastenonderzoek. De Wielewaal. 313:42-49. 1967
- Snavelmisvormingen bij een kokmeeuw Larus ridibundus en een boomklever Sitta europaea. Giervalk. 57:139-144. 1967
- A method to establish boundaries of bird territories. Giervalk. 56:404-408. 1966
- Die Zuggeschwindigkeit der Kohlmeise, Parus m. major L. Giervalk. 56:409-414. 1966
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article
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book
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booksection
- What drives differences between North American and Eurasian tit studies? 2007
- FeederWatch: An example of a student-scientist partnership 1997
- Between- and within population variation in mate fidelity in the Great Tit 1996
- Individual voice discrimination in birds. Vol. 12. 1995
- Population dynamics and regulation of a high density Blue Tit population. Vol. G 24. 1990
- Acoustical communication in birds and its differences from human language. Vol. 1. 1989
- Blue Tit 1989
- Koolmees Parus major 1989
- Kuifmees Parus cristatus 1989
- Matkop Parus montanus 1989
- Pimpelmees Parus caeruleus 1989
- De Koolmees 1988
- The necessity of population genetics for understanding evolution: An ecologist's view 1988
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chapter
- The opportunities and challenges of citizen science as a tool for ecological research. Citizen Science: Public Collaboration in Environmental Research. 99-113. 2012
- Effects of forest fragmentation on North American tanager and thrush species in eastern and western North America. Studies in Avian Biology. 81-91. 2002
- Project FeederWatch. Internet Links to Science Education: Student Scientist Partnerships. 1997
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conference paper
- Population dynamics and social behaviour of red squirrel populations in different habitats. Transactions of the XVIIth Congress of the International Union of Game Biologists. 311-318. 2008
- Adverse effects of acid rain on the distribution of the Wood Thrush Hylocichla mustelina in North America. Proc. National Academy Sci. 11235-11240. 2002
- Birds breeding in short-rotation woody crops in Upstate New York: 1998-2000. Proceedings of the Short-Rotation Woody Crops Operations Working Group. Third Conference. 137-141. 2001
- Density-dependent decline of host abundance resulting from a new infectious disease. Proceedings of the National Academy of Sciences USA. 5303-5306. 2000
- FeederWatch: Cornell Laboratory of Ornithology. Proceedings of the National Conference on Students and Scientist Partnerships. 64-65. 1997
- Reproduction and recruitment in a red squirrel population. Transactions of the 19th IUGB Congress, Trondheim 1989. 157-162. 1990
- Symposium 42 Non breeding social organization in resident passerines: Introduction. Acta XIX Congressus Internationalis Ornithologici. 2352-2353. 1988
- The effect of interspecific competition on numbers in bird populations. Acta XVIII Congressus Internationalis Ornithologicus. 792-796. 1985
- Wildlife population dynamics and regulation: The implications of non linear models. Transactions of the XVIIth Congress of the International Union of Game Biologists. 163-172. 1985
- The regulation of numbers in Belgian populations of Great Tits. Proceedings of the Advanced Study Institute on 'Dynamics of Numbers in Populations' Oosterbeek. 532-547. 1971
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document part
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report
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review
- A land manager's guide to improving habitat for forest thrushes 2004
featured in archived article
speaker at Cornell event
Teaching
teaching overview
- Teach students how to ask questions and to think about data and problems
teaching activities
- BIOEE-7600: Special Topics in Evolution and Ecology - Spring 2013
- BIOEE-8990: M.S. Thesis Research - Spring 2013
- BIOEE-9990: Ph.D. Dissertation Research - Spring 2013
- BIOEE-8990: M.S. Thesis Research - Fall 2012
- BIOEE-9990: Ph.D. Dissertation Research - Fall 2012
- BIOEE-7800: Graduate Seminar in Ornithology - Spring 2012
- BIOEE-8990: M.S. Thesis Research - Spring 2012
- BIOEE-9990: Ph.D. Dissertation Research - Spring 2012
- NTRES-7800: Graduate Seminar in Ornithology - Spring 2012
- BIOEE-8990: M.S. Thesis Research - Fall 2011
- BIOEE-9990: Ph.D. Dissertation Research - Fall 2011
Service
service to the profession
- Deutsche Ornithologen-Gesellschaft Faculty Fellow 2006 -
- Scientific Advisory Committee of the Graduate School "Funtional Ecology", The Netherlands Committee Member 1998 -
- American Ornithologists Union Faculty Fellow 1990 -
- International Society for Behavioral Ecology Member 1990 -
- British Ecological Society Member 1980 -
- British Ornithologists Union Member 1980 -
- Koninklijke Belgische Vereniging voor Dierkunde Board Member 1975 -
- External Reviewer Ph.D. Reviewer - 2003
- NIH-NSF Program: Ecology of Infectious Diseases Panel Member - 2003
- 9th International Behavioral Ecology Congress Chairperson 2002
reviewer or editor for
Background
education and training
- Ph.D. in Biology, Ghent State University 1970
- Ghent State University 1968
- Ghent State University 1966
awards and honors
- Corresponding Fellow, 2006
- Corresponding Fellow, 2000
Other
college
- CALS
research keyword
- animal ecology
- behavioral ecology
- biometry
- disease ecology
- ecology
- evolutionary biology
- host-pathogen interactions
- organismal biology
- ornithology
- population ecology
- zoogeography