Results 51 to 60 of about 7,497,770 (317)
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier+6 more
wiley +1 more source
The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
PRINCIPAL COMPONENTS TO OVERCOME MULTICOLLINEARITY PROBLEM [PDF]
The impact of ignoring collinearity among predictors is well documented in a statistical literature. An attempt has been made in this study to document application of Principal components as remedial solution to this problem.
Abubakari S.Gwelo
doaj
The bay scallop (Argopecten irradians irradians) is one of the most important shellfish species in China. Since their introduction into China, only mass selection has been used in bay scallop breeding.
Hengde Li+7 more
doaj +1 more source
Generalizibility of instructional and school effectiveness indicators across nations [PDF]
In a secondary analysis of the data base of the IEA second mathematics study, the association of school and instructional characteristics with mathematics achievement within and across 17 countries at the school and student level was investigated.
Pelgrum, W.J.+2 more
core +3 more sources
Network topology drives population temporal variability in experimental habitat networks
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu+3 more
wiley +1 more source
Age-specific survival of male Golden-cheeked Warblers on the Fort Hood Military Reservation, Texas
Population models are essential components of large-scale conservation and management plans for the federally endangered Golden-cheeked Warbler (Setophaga chrysoparia; hereafter GCWA). However, existing models are based on vital rate estimates calculated
Adam Duarte+4 more
doaj +1 more source
Partitioning variance in reproductive success, within years and across lifetimes
Variance in reproductive success (sk2, with k = number of offspring) plays a large role in determining the rate of genetic drift and the scope within which selection acts. Various frameworks have been proposed to parse factors that contribute to sk2, but
Robin S. Waples
doaj +1 more source
Controlling the Overfitting of Heritability in Genomic Selection through Cross Validation. [PDF]
In genomic selection (GS), all the markers across the entire genome are used to conduct marker-assisted selection such that each quantitative trait locus of complex trait is in linkage disequilibrium with at least one marker.
Jia, Zhenyu
core +2 more sources
Geographic variation in walking activity in the red flour beetle Tribolium castaneum
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley +1 more source