Results 11 to 20 of about 5,243,568 (295)
Age-related nest-site segregation in a solitary nesting population of white stork Ciconia Ciconia
Frontiers in ZoologyBackground Habitat selection plays a crucial role in avian reproductive success, with nest-site characteristics and individual traits influencing breeding outcomes. This study investigates the relationship between breeder’s age and nest-site selection in
Joanna T. Bialas +3 more
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Fully accounting for nest age reduces bias when quantifying nest survival [PDF]
Ornithological Applications, 2021 AbstractAccurately measuring nest survival is challenging because nests must be discovered to be monitored, but nests are typically not found on the first day of the nesting interval. Studies of nest survival therefore often monitor a sample that overrepresents older nests. To account for this sampling bias, a daily survival rate (DSR) is estimated and
openaire +1 more source
Eggs in the freezer: energetic consequences of nest site and nest design in Arctic breeding shorebirds [PDF]
, 2012 Birds construct nests for several reasons. For species that breed in the Arctic, the insulative properties of nests are very important. Incubation is costly there and due to an increasing surface to volume ratio, more so in smaller species. Small species
Tulp, Ingrid +2 more
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Ovarian Stem Cell Nests in Reproduction and Ovarian Aging [PDF]
Cellular Physiology and Biochemistry, 2017 The fixed primordial follicles pool theory, which monopolized reproductive medicine for more than one hundred years, has been broken by the discovery, successful isolation and establishment of ovarian stem cells. It has brought more hope than ever of increasing the size of primordial follicle pool, improving ovarian function and delaying ovarian ...
Haifeng Ye +11 more
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Too Young to Leave the Nest? The Effects of School Starting Age [PDF]
Review of Economics and Statistics, 2008 Does it matter when a child starts school? While the popular press seems to suggest it does, there is limited evidence of a long-run effect of school starting age on student outcomes. This paper uses data on the population of Norway to examine the role of school starting age on longer-run outcomes such as IQ scores at age 18, educational attainment ...
Devereux, Paul J. +2 more
openaire +7 more sources
, 2010 Casings from Vietnam 1972 and bullet (unknown) loaned by Martin Bell; basket made by Linda from Juncus effusis; water retted unspun flax fibres; kestrel skull loaned by Alan Outram; picture wire.
Linda Hurcombe (21812465) +1 more
core +6 more sources
Historical versus contemporary climate forcing on the annual nesting variability of loggerhead sea turtles in the Northwest Atlantic Ocean. [PDF]
PLoS ONE, 2013 A recent analysis suggested that historical climate forcing on the oceanic habitat of neonate sea turtles explained two-thirds of interannual variability in contemporary loggerhead (Caretta caretta) sea turtle nest counts in Florida, where nearly 90% of ...
Michael D Arendt +4 more
doaj +1 more source
Avian Research, 2019 Background Investigating the ecological factors and processes shaping nest survival is of great importance for assessing the breeding success of bird populations and understanding their spatio-temporal dynamics.
Jihen Boukhriss, Slaheddine Selmi
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Interacting effects of aromatic plants and female age on nest-dwelling ectoparasites and blood-sucking flies in avian nests [PDF]
Behavioural Processes, 2012 Some avian species incorporate aromatic plants to their nests. The "nest protection hypothesis", which posits that volatile secondary compounds contained in these plants may have antiparasite properties, has not received full support. All previous tests of this hypothesis have only considered effects on nest-dwelling ectoparasites, but not on blood ...
G, Tomás +7 more
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Depression symptoms and quality of life in empty-nest elderly among Chengdu: A cross-sectional study
Frontiers in Psychiatry, 2022 ObjectivesTo estimate the prevalence of depression symptoms and quality of life (QoL) and examined the influence of factors in the empty nest elderly.MethodsThis was a cross-sectional study, which was conducted from February 2022 to May 2022.
Lanying He +5 more
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