A5027028313- Avian ecology and behavior
- Animal Behavior and Reproduction
- Bird parasitology and diseases
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Animal Ecology and Behavior Studies
- Microbial infections and disease research
- Wildlife Ecology and Conservation
- Viral Infections and Vectors
- Vector-borne infectious diseases
- Species Distribution and Climate Change
- Animal Vocal Communication and Behavior
- Genetic diversity and population structure
- Herpesvirus Infections and Treatments
- Evolution and Genetic Dynamics
- Fish Ecology and Management Studies
- Rangeland and Wildlife Management
- Lepidoptera: Biology and Taxonomy
- Amphibian and Reptile Biology
- Bat Biology and Ecology Studies
- Insect and Arachnid Ecology and Behavior
- Genetic and phenotypic traits in livestock
- Marine animal studies overview
- Marine and fisheries research
- Evolutionary Psychology and Human Behavior
Cornell University
2016-2025
Cornell Lab of Ornithology
1998-2025
University of Antwerp
1994-2020
Google (United States)
1995-2017
Centre National de la Recherche Scientifique
2009-2010
Centre d'Écologie Fonctionnelle et Évolutive
2009
Ghent University Hospital
2007
University of Alberta
2006
University of Insubria
2006
Michigan Department of Natural Resources
2006
Although many new diseases have emerged within the past 2 decades [Cohen, M. L. (1998) Brit. Med. Bull. 54, 523–532], attributing low numbers of animal hosts to existence even a pathogen is problematic. This because very rarely does one data on host abundance before and after epizootic as well detailed descriptions prevalence [Dobson, A. P. & Hudson, J. (1985) in Ecology Infectious Diseases Natural Populations , eds. Grenfell, B. T. Dobson, (Cambridge Univ. Press, Cambridge, U.K.), pp....
Spring temperatures in temperate regions have increased over the past 20 years and many organisms responded to this increase by advancing timing of their growth reproduction. However, not all populations show an advancement phenology. Understanding why some advance others do will give us insight into possible constraints selection pressures on By combining two decades data 24 tits (Parus sp.) from six European countries, we that phenological response large–scale changes spring temperature...
Mast seeding, the intermittent, synchronous production of large seed crops by a population plants, is well-known example resource pulses that create lagged responses in successive trophic levels ecological communities. These lags arise because predators are thought capable increasing reproduction and size only after pulse available for consumption. The resulting satiation widely cited explanation evolution masting. Our study shows both American Eurasian tree squirrels anticipate increase...
In some studies but not in others the average clutch size decreases with density. We propose that density-dependent fecundity occurs because, as density increases, proportionally more poor-quality sites (with small clutches) are occupied, and because all territories decreases. This mechanism will only cause dependence if habitat is heterogeneous at scale of home range or territory an individual. Density-dependent be found populations differences heterogeneity
Predation on artificial nests was studied in Belgian deciduous forest fragments between 1 and 200 ha rates were compared to fragment size, distance from the edge, time period (three replicates), nest type (ground tree) Logistic regression analysis showed that overall predation did not vary with Birds represented over 70% of all predator attacks but their importance decreased larger areas away edge where mammals responsible for much It is concluded effect habitat fragmentation depends...
SUMMARY (1) Two populations of red squirrels were studied by capture-mark-recapture over a 3-year period in different habitats. (2) Survival was positively correlated with body weight the second winter life, independent length. (3) Females weighing less than 300 g did not come into oestrus. In logistic regression model, female and dominance best predictors fertility. (4) coniferous habitat, when lactating difference lactation predicted success raising offspring. deciduous habitat predictor,...
The evolution of higher virulence during disease emergence has been predicted by theoretical models, but empirical studies short-term following pathogen remain rare. Here we examine patterns using archived isolates the bacterium Mycoplasma gallisepticum collected sequential events in two geographically distinct populations host, North American house finch (Haemorhous [formerly Carpodacus] mexicanus). We present results from complementary experiments, one that examines trend eastern over...
In the winter of 1993-94, house finches (Carpodacus mexicanus) with severe conjunctivitis (later shown to be caused by Mycoplasma gallisepticum) were first observed in sub-urban Washington D.C. (USA) and adjacent states. Using a large network volunteer observers eastern North America, we able track monthly prevalence disease between November 1994 March 1997. information on 24,864 data forms, describe very rapid spread epidemic through finch population. The expanded mainly north, probably...
Summary Mycoplasma gallisepticum is an emerging eye disease that spread rapidly among wild house finches ( Carpodacus mexicanus ) in the eastern United States following initial reports of infected birds 1994. The hallmark signs infection have allowed systematic monitoring at both local and continent‐wide scales for more than 7 years since onset epidemic. Using data collected by a network citizen science volunteers, we examined long‐term trends seasonal dynamics mycoplasmal conjunctivitis...
SUMMARY (1) We studied differences in habitat distribution, local survival and mating success • between the two morphs (resident/migrant) of partially migratory European robin near Antwerp (Belgium). (2) Mean resident males (50%) was higher than migrant (17%). During cold winters residents decreased with about 50%. (3) Mating settling date from 74% for early residents, over 44% migrants to 19% late-settling birds unknown status. (4) The probability breeding is four times migrants. (5)...
We examine the role of host seasonal breeding, social aggregation and partial immunity in affecting wildlife disease dynamics, focusing on dynamics house finch conjunctivitis (Mycoplasma gallisepticum (MG) Carpodacus mexicanus). This case study an unmanaged emerging infectious provides useful insight into important factors driving ongoing dynamics. Seasonal breeding can force recurrent epidemics through input fresh susceptibles, which will clearly affect a wide variety patterns foraging...
Summary We considered the impact of an emerging pathogen ( Mycoplasma gallisepticum Edward and Kanarek) on apparent survival, encounter transition rates in a population novel host (the house finch, Carpodacus mexicanus Müller). used multistate analysis mark–encounter data from individually marked birds. Individual birds were categorized to particular disease ‘state’; among states, conditional analogous new infection recovery infection. hypothesized that M. would reduce survival infected...