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Results 21 - 30
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49
Sexual selection and cuckoldry in a monogamous songbird: implications for sexual selection theory.
- Behav. Ecol. Sociobiol.
, 1994
"... Abstract Sexual selection is generally assumed to be weaker in monogamous than in polygynous animals. Recently, though, extra-pair fertilizations have been hailed as an important force in generating variance in reproductive success among males in socially monogamous species, thereby increasing the ..."
Abstract
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Cited by 22 (3 self)
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the intensity of sexual selection. To see if extra-pair copulations contribute to variance in male reproductive success in the house finch (Carpodacus mexicanus), we used DNA fingerprinting to determine the paternity of chicks from 35 nests. This species is a socially monogamous passerine in which plumage
Chemical warfare? Effects of uropygial oil on feather-degrading bacteria
- J Avian Biol
, 2003
"... uropygial oil on feather-degrading bacteria. / J. Avian Biol. 34: 345/349. Anti-microbial activity is a commonly suggested but rarely tested property of avian uropygial oil. Birds may defend themselves against feather-degrading and other potentially harmful bacteria using this oil. We preliminarily ..."
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Cited by 18 (1 self)
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preliminarily identified 13 bacterial isolates taken from the plumage of wild house finches Carpodacus mexicanus, measured bacterial production of the enzyme keratinase as an index of feather-degrading activity, and used the disc-diffusion method to test bacterial response to uropygial oil of house finches
Federal Railroad Administration
"... The types, general distribution, and descriptions of vegetation communities occurring along the various proposed segments are described in further detail below. Annual grasslands (non-native grasslands): A small patch of this community is found just south of the proposed segment, west of Pomona. Thi ..."
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-thistles (Centaurea sp.). Emergent shrubs and trees also may be present. Annual grasslands may host European starlings (Sturnus vulgaris), house sparrows (Passer domesticus), mockingbirds (Mimus polyglottos), house finches (Carpodacus mexicanus), scrub jays (Aphelocoma coerulescens), mourning doves (Zenaida macroura
ACCOUNTING FOR DETECTION HETEROGENEITY AND HOST
, 2007
"... Cornell University 2007 During the course of my dissertation research, I made use of capture-recapture methods to investigate local house finch (Carpodacus mexicanus) demography and movements in the context of understanding seasonal Mycoplasma gallisepticum (MG) infection dynamics. Capture-recapture ..."
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Cornell University 2007 During the course of my dissertation research, I made use of capture-recapture methods to investigate local house finch (Carpodacus mexicanus) demography and movements in the context of understanding seasonal Mycoplasma gallisepticum (MG) infection dynamics. Capture
Primer design and transcript quantification of a highly multiplexed RT-PCR for a nonmodel avian species
"... Abstract Multiplexed qRT-PCR assays are currently lacking for nearly all species without genome or transcriptome resources. Here, we present a strategy for primer design of highly multiplexed qRT-PCR assays, evaluate Beckman Coulter's Quant Tool gene expression quantification software and prov ..."
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and provide details of our assay for the North American songbird Carpodacus mexicanus (house finch), for which only small sections of genome sequence are available. We combined Beckman Coulter's eXpress Designer module for creating custom multiplex primers with the free, online program Amplify 3
The Role of Oil Content and Size in Seed Selection by Wild Birds
, 2012
"... ABSTRACT We determined whether birds actively select specific varieties of a single seed species, whether seed selection is based on oil content, how birds can distinguish seeds based on oil content, and if seed preferences are equivalent among species. Three trials were conducted from winter 2007- ..."
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any other seed variety. House Finch (Carpodacus mexicanus), American Goldfinch (Spinus tristis), and House Sparrow (Passer domesticus) preferred seeds with a higher oil content when seed size was equivalent, but selected shorter, deeper seeds with a lower oil content at equivalent levels to larger
Blackwell Publishing, Ltd. eastern North American house finches
"... 1. 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 in 1994. The hallmark signs of infection have allowed systematic monitoring of disease at both local and ..."
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1. 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 in 1994. The hallmark signs of infection have allowed systematic monitoring of disease at both local
Dispatches Molecular Epidemiologic Investigations of
"... An ongoing outbreak of conjunctivitis in free-ranging house finches (Carpodacus mexicanus) began in 1994 in the eastern United States. Bacterial organisms identified as Mycoplasma gallisepticum (MG) were isolated from lesions of infected birds. MG was also isolated from a blue jay (Cyanocitta crista ..."
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An ongoing outbreak of conjunctivitis in free-ranging house finches (Carpodacus mexicanus) began in 1994 in the eastern United States. Bacterial organisms identified as Mycoplasma gallisepticum (MG) were isolated from lesions of infected birds. MG was also isolated from a blue jay (Cyanocitta
Novel pathogens are powerful selective agents in...
"... Innate immunity is expected to play a primary role in conferring resistance to novel infectious diseases, but few studies have attempted to examine its role in the evolution of resistance to emerging pathogens in wild vertebrate populations. Here, we used experimental infections and cDNA microarrays ..."
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DNA microarrays to examine whether changes in the innate and ⁄ or acquired immune responses likely accompanied the emergence of resistance in house finches (Carpodacus mexicanus) in the eastern United States subject to a recent outbreak of conjunctivitis-causing bacterium (Mycoplasma gallisepticum—MG). Three days
Additivemetabolic costs of thermoregulation and pathogen infection
"... 1. Thermoregulation and pathogen resistance are two energetically demanding processes that co-occur during seasonal epidemics for many endothermic vertebrates. The ability of hosts to cope with these processes simultaneously may influence population-level disease dynamics. 2. In North American house ..."
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house finches (Carpodacus mexicanus), outbreaks of the bacteriumMyco-plasma gallisepticum occur during fall and winter, when ambient temperatures across the host’s range are often below thermoneutrality. Here, we examined how ambient temperature influences host energetics and susceptibility
Results 21 - 30
of
49
