... articleNext article No AccessDominance in Winter Flocks of Juncos and Tree SparrowsWinifred S. SabineWinifred S. Sabine Search ... social groups for dominant and subordinate dark-eyed juncos (Junco hyemalis), Behavioral Ecology and Sociobiology 37, no.22 ( ... Able Age-related dominance in male dark-eyed juncos: effects of plumage and prior residence, Animal Behaviour ... foraging success of dominant and subordinate dark-eyed juncos, Junco hyemalis, Animal Behaviour 35, no.66 (Dec 1987): ... social dominance between two subspecies of dark-eyed juncos, Junco hyemalis, Animal Behaviour 35, no.33 (Jun ...
Tópico(s): Fish Ecology and Management Studies
1949 - University of Chicago Press | Physiological Zoology
Kimberly G. Smith, Douglas C. Andersen,
... 19 nests, respectively, of the groundnesting, Dark-eyed Junco (Junco hyemalis mearnsi) were monitored in a sprucefir ecosystem ... independent of clutch size in the Pink-sided Junco. Final tarsal length upon leaving the nest also ... the nest was equal to that of adult juncos. We interpret this as support for the hypothesis, ... dramatically during the three seasons we studied these juncos, the dry biomass of food items in junco diets peaked 1 week after the mean hatching ... to http://about.jstor.org/terms October 1982] Junco Breeding Ecology 651 Research on avian reproductive ecology ...
Tópico(s): Animal Behavior and Reproduction
1982 - Oxford University Press | Ornithology
Wesley W. Weathers, Kimberly Sullivan,
... energy in a population of adult Yellow—eyed Juncos (Junco phaeonotus) and their young (nestlings, fledglings, independent juveniles) ... content of insect prey. We found that adult juncos feeding young are neither food limited nor working ... daylight hours to meet their own energy demands. Juncos younger than this cannot attain energy balance in ... they forage continuously. The H D of adult juncos (mean mass 19.5 g) remained fairly constant ... metabolic rate. In contrast, H D of fledging juncos increased steadily with age, from 59.7 kJ/ ...
Tópico(s): Bird parasitology and diseases
1989 - Wiley | Ecological Monographs
C. Ray Chandler, Robert S. Mulvihill,
... fat level on wing loading in Dark-eyed Juncos (Junco hyemalis). Female juncos had significantly greater wing loading than males; wing ... loading increased allometrically with lean body mass in juncos (heavier individuals have relatively greater wing loading). We ... of fattening, and distribution among individual Dark-eyed Juncos. Received 7 December 1990, accepted 10 January 1992. ... loading in a passerine bird, the Dark-eyed Junco 3Present address: Department of Biological Sciences, University of ... Southern Station, Box 5018, Hattiesburg, Mississippi 39406, USA. (Junco hyemalis). Predicting the extent or direction of possible ...
Tópico(s): Biomimetic flight and propulsion mechanisms
1992 - Oxford University Press | Ornithology
William Durante, Chia-Cheng Lin,
... dysfunction remain elusive. Using a murine AVF model, Juncos et al. demonstrate for the first time that ... dysfunction remain elusive. Using a murine AVF model, Juncos et al. demonstrate for the first time that ... protective effect of HO-1 against vascular injury. Juncos and colleagues5.Juncos J.P. Tracz M.J. Croatt A.J. ... compared with wild-type animals. These findings by Juncos et al.5.Juncos J.P. Tracz M.J. Croatt A.J. ... represent a logical extension of the study by Juncos et al.5.Juncos J.P. Tracz M.J. Croatt A.J. ...
Tópico(s): Vascular Malformations Diagnosis and Treatment
2008 - Elsevier BV | Kidney International
Chris Kirkpatrick, Courtney J. Conway, MOEZ H. ALI,
... Red-faced Warblers Cardellina rubrifrons and Yellow-eyed Juncos Junco phaeonotus in the Santa Catalina Mountains, Pima County, Arizona, USA. Red-faced Warblers and Yellow-eyed Juncos are monogamous, ground-nesting birds that breed in ... and brood size of four, whereas Yellow-eyed Juncos have a modal clutch size of four and ... 76 Red-faced Warbler and 76 Yellow-eyed Junco nests on five 16–20-ha study sites ... nine Red-faced Warbler and nine Yellow-eyed Junco nests using time-lapse video cameras equipped with ...
Tópico(s): Animal Ecology and Behavior Studies
2008 - Wiley | Ibis
Chris Kirkpatrick, Courtney J. Conway,
... red‐faced warbler ( Cardellina rubrifrons ) and yellow‐eyed junco ( Junco phaeonotus ), in high‐elevation (>2,000 m) forested ... populations of red‐faced warblers and yellow‐eyed juncos, 2) identified nest‐site characteristics for each species ( ... found that red‐faced warblers and yellow‐eyed juncos were the 2 most common ground‐nesting birds ... plots, most red‐faced warbler and yellow‐eyed junco nests were located close (≤30 m) to drainage ... downed logs and less canopy cover (yellow‐eyed juncos). Although both species nested in close proximity within ...
Tópico(s): Wildlife Ecology and Conservation
2010 - Wiley | Journal of Wildlife Management
Wesley W. Weathers, Kimberly Sullivan,
... during the breeding season. In both yellow-eyed juncos (Junco phaeonotus) and dark-eyed juncos (Junco hyemalis), winter FMR averaged 70.5 kJ/d, ... exhibit reallocation. To maintain energy balance, yellow-eyed juncos had to forage longer during the winter than ... Basal metabolism and thermoregulatory costs combined constituted the juncos' entire winter FMR, with thermoregulatory costs averaging 57% of FMR in yellow-eyed juncos and 49% in dark-eyed juncos. Thus, behavior has no net energy cost at low temperatures in juncos. Our data also suggest that winter is a ...
Tópico(s): Bird parasitology and diseases
1993 - University of Chicago Press | Physiological Zoology
... Practices for Use in Student Affairs by Reynol Junco Paul William Eaton Engaging Students Through Social Media: ... Based Practices for Use in Student Affairs Reynol Junco San Francisco, CA: Jossey Bass, 2014, $19.99 ( ... Based Practices for Use in Student Affairs, Reynol Junco builds on previous research and scholarship (Junco & Mastrodicasa, 2007; Junco & Timm, 2008), highlighting the need for informed, balanced ... social media into educational practices across student affairs. Junco's central theses are: (a) there is little ...
Tópico(s): Radio, Podcasts, and Digital Media
2015 - Johns Hopkins University Press | Journal of college student development
M. Maral Mouradian, J. L. Juncos, Giovanni Fabbrini, Thomas N. Chase,
... MDSearch for more papers by this authorJ. L. Juncos MD, J. L. Juncos MD Experimental Therapeutics Branch National Institute of Neurological ... MDSearch for more papers by this authorJ. L. Juncos MD, J. L. Juncos MD Experimental Therapeutics Branch National Institute of Neurological ... available for this article. References 1 Mouradian MM, Juncos JL, Fabbrini G, Chase TN. Motor fluctuations in ... studies. Ann Neurol 1987; 22: 475–479 2 Juncos JL, Mouradian MM, Fabbrini G, et al. Levodopa ... 37: 1242–1245 3 Fabbrini G, Mouradian MM, Juncos JL, et al. Motor fluctuations in Parkinson's ...
Tópico(s): Neurological diseases and metabolism
1989 - Wiley | Annals of Neurology
Ana E. Juncos, Richard Whitman,
... as a Regional Actor: Neighbourhood Lost? Ana E. Juncos, Corresponding Author Ana E. Juncos University of Bristol Correspondence: Ana E. Juncos, School of Sociology, Politics and International Studies, University ... Road, Bristol BS8 1TU, UK. email: a.e.juncos@bristol.ac.ukSearch for more papers by this ... for more papers by this author Ana E. Juncos, Corresponding Author Ana E. Juncos University of Bristol Correspondence: Ana E. Juncos, School of Sociology, Politics and International Studies, University ...
Tópico(s): Regional Development and Policy
2015 - Wiley | JCMS Journal of Common Market Studies
Borja Milá, John E. McCormack, Gabriela Castañeda, Robert K. Wayne, Thomas B. Smith,
... of extremely rapid diversification in the songbird genus Junco as a result of a single continent-wide ... last 10 000 years. Molecular data from 264 juncos sampled throughout their range reveal that as the yellow-eyed junco ( Junco phaeonotus ) of Mesoamerica expanded northward following the last glacial maximum, it speciated into the dark-eyed junco ( Junco hyemalis ), which subsequently diversified itself into at least ... fragment length polymorphism loci found in dark-eyed juncos relative to Mesoamerican yellow-eyed juncos provide support ...
Tópico(s): Ecology and Vegetation Dynamics Studies
2007 - Royal Society | Proceedings of the Royal Society B Biological Sciences
Richard Whitman, Ana E. Juncos,
... KentSearch for more papers by this authorANA E. JUNCOS, ANA E. JUNCOS University of BristolSearch for more papers by this ... KentSearch for more papers by this authorANA E. JUNCOS, ANA E. JUNCOS University of BristolSearch for more papers by this ... europe_is_europe?page=full». Whitman, R. and Juncos, A.E. (2009a) ‘Relations with the Wider Europe’. ... No. S1, pp. 193– 211. Whitman, R. and Juncos, A.E. (2009b) ‘The Lisbon Treaty and the ... No. 1, pp. 25– 46. Whitman, R. and Juncos, A.E. (2010) ‘Relations with the Wider Europe’. ...
Tópico(s): Post-Soviet Geopolitical Dynamics
2012 - Wiley | JCMS Journal of Common Market Studies
Christopher M. Rogers, Val Nolan, Ellen D. Ketterson,
... The winter body mass of migratory Dark—eyed Juncos (Junco hyemalis) usually is greater where severe weather is ... gram of lean dry mass) of free—living juncos at three latitudes in two winters and found ... within or between winters. We also displaced wintering juncos from northern, intermediate, and southern sites and exposed ... group of displaced birds was released in natural junco habitat (during three winters), and another was held ... It was also indistinguishable from the LI of juncos sampled at that time from the free—living ...
Tópico(s): Genetic and phenotypic traits in livestock
1993 - Wiley | Ecology
... lipid appropriate to current metabolic demands. Dark-eyed juncos (Junco hyemalis oreganus) and song sparrows (Melospiza melodia morphna) ... than in the warm group in both the junco and the sparrow. The same result was obtained ... analysis of mass-specific fat reserves. In addition, junco populations wintering at 951 m in the coastal ... level in British Columbia and northwest Washington. Finally, juncos in both British Columbia and Washington showed significant ... temperature hypothesis and corroborate similar experiments in Wisconsin juncos that repeatedly showed a direct fattening response to ...
Tópico(s): Animal Behavior and Reproduction
1995 - University of Chicago Press | Physiological Zoology