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pro vyhledávání: '"Bruce H. Pugesek"'
Structural equation modelling (SEM) is a technique that is used to estimate, analyse and test models that specify relationships among variables. The ability to conduct such analyses is essential for many problems in ecology and evolutionary biology.
Autor:
Bruce H. Pugesek
Publikováno v:
Ecological Complexity. 20:157-175
Throughout history, rare, influential, unexpected, catastrophic events with widespread significant long-term effects such as societal collapse, wars, revolutions, natural disasters, disease pandemics, droughts, famines, and financial crises have impa
Publikováno v:
The Wilson Journal of Ornithology. 125:658-661
We sampled blue crab (Callinectes sapidus) numbers in marshes on the Aransas National Wildlife Refuge, Texas from 1998–2006, while simultaneously censusing the wintering population of Whooping Cranes (Grus americana) on the refuge and surrounding h
Autor:
Bruce H. Pugesek, Kenneth L. Diem
Publikováno v:
The Wilson Journal of Ornithology. 120:159-166
We investigated patterns of mortality during post-breeding migrations of California Gulls (Larus californicus) nesting near Laramie, Wyoming, USA. We used 151 recoveries and 647 sightings of banded and patagially-marked gulls to compare ratios of mor
Publikováno v:
Environmental and Ecological Statistics. 7:93-111
Structural equation modeling is an advanced multivariate statistical process with which a researcher can construct theoretical concepts, test their measurement reliability, hypothesize and test a theory about their relationships, take into account me
Autor:
James B. Grace, Bruce H. Pugesek
Publikováno v:
The American Naturalist. 152:151-159
C) and, based on that assumption, partitioned relationships among different pathways. In this original form, path analysis was not a simultaneous method (in the Smith et al. (1997) recently drew attention to some pit- sense that all parameters were e
Autor:
Bruce H. Pugesek, James B. Grace
Publikováno v:
The American Naturalist. 149:436-460
Studies of plant species richness have often emphasized the role of either community biomass (as an indicator of density effects) or abiotic factors. In this article we present a general model that simultaneously examines the relative importance of a
Autor:
Adrian Tomer, Bruce H. Pugesek
Publikováno v:
Evolutionary Ecology. 10:387-404
We analysed the data of H.C. Bumpus on the survival of house sparrows (Passer domesticus) using structural equation modelling techniques. Using data on seven morphological variables measured by Bumpus, we tested and confirmed a three-factor model tha
Publikováno v:
Journal of Applied Statistics
Journal of Applied Statistics, Taylor & Francis (Routledge), 1995, 22 (5-6), pp.625-640. ⟨10.1080/02664769524504⟩
Journal of Applied Statistics, Taylor & Francis (Routledge), 1995, 22 (5-6), pp.625-640. ⟨10.1080/02664769524504⟩
California gulls ( Larus californicus ) of known age and sex were censused on their breeding colony in 1979, 1980 and 1984 through 1993. Ages of 235 males and 196 females ranged from 4 to 27 years. Age classes used in the analysis were limited to 17,
Autor:
Bruce H. Pugesek
Publikováno v:
Animal Behaviour. 49:641-647
Measures of adult feeding and foraging behaviour in the California gull, Larus californicus , were related to the growth of their offspring. Offspring showed significantly higher growth when average feeding interval, a measure of the time interval be