Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 8

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  life time
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
2
Content available remote

The natural history of respiratory system function

84%
Lung growth starts in the first year of life. Between 20-30 years of age, man achieves the maximum FEV1. Some years later, maximum FVC is achieved. After the phase of a dynamic increase, lung function stabilizes for a while. Thereafter, it starts declining slowly in some individuals or increasing in others. The third and last phase of lung function changes during a lifetime begins between 40-45 years of life. The FEV1 and some years later also FVC diminish with a varied speed during this period. Changes in FVE1 and FVC in the third phase are slower at the beginning and accelerate in the six or seventh decade of life. There are some differences between males and females concerning the lung function profile. Female lung function starts decreasing earlier than that in male individuals. There are also pronounced interindividual differences in lung function among individuals of a similar age and body height.
Live-trapping of rodents was conducted over a 12-ha plot on unevenly spaced trap lines, with inner lines forming a 3.5-ha grid of closely spaced traps. This design was used to estimate the probability that bank voles Clethrionomys glareolus (Schreber, 1780) and yellow-necked mice Apodemus flavicollis (Melchior, 1834) trapped in small grids are true residents rather than visitors from the surrounding area. On average, 12% of the voles and 19% of the mice were trapped within and beyond the grid in the same trapping sessions. As these were mainly wide-ranging males moving over the plot, home ranges of males may be underestimated on small grids. In total, 36% of voles and 39% of mice that were marked in spring-summer were trapped at least once in their life beyond the grid. Typically, these were individuals shifting home ranges and migrating to or from the grid. The size of lifetime ranges of rodents was significantly larger than temporary home ranges and may therefore be underestimated on small grids. "Single­-capture" individuals were mainly true transients rather than visitors. Only 12% of voles and 15% of mice resided on the plot for longer time than in the grid.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.