... influences deposition of 10 yolk steroids. We found no clear evidence that yolk androgen deposition changed when perception of nest predation risk was experimentally increased. However, elevated nest predation risk led to decreased yolk progesterone deposition. Overall, our results suggest yolk progesterone...

...Tom D. Brutsaert; Hilde Spielvogel; Esperanza Caceres; Mauricio Araoz; Robert T. Chatterton; Virginia J. Vitzthum SUMMARY At sea level normally menstruating women show increased ventilation (V̇ e ) and hemodynamic changes due to increased progesterone (P) and estrogen (E2) levels during the mid...