Body Weight - Mean |
43.1 |
mean body weight |
g |
Male |
Adult |
154 |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
2.8 SD |
Body Weight - Mean |
42.2 |
mean body weight |
g |
Female |
Adult |
158 |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
3.0 SD |
Time of Mating/ Laying |
March 29-June 25 (1991), March 11-June 29 (1992) |
length of egg laying season in two sample years |
|
Female |
Adult |
Not Reported |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
|
Clutch or Litter Size |
2.63 |
clutch size |
eggs/clutch |
Female |
Adult |
316 nests |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
|
Fledging or Weaning Rate |
19.3% |
Percent of nests in which at least one chick hatched. |
% |
Both Male and Female |
Both Adults and Juveniles |
316 nests |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
|
Hatching Success |
27.6% (1991), 16.1% (1992) |
percent of all eggs that hatched |
% |
Both Male and Female |
Both Adults and Juveniles, Embryo |
254 (1991), 554 (1992) eggs |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
|
Body Weight - Mean |
6.33 |
mean body weight at hatching |
g |
Both Male and Female |
Hatchling |
47 |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
0.56 SD |
Clutch or Litter Size |
2.69 (1991), 2.54 (1992) |
mean numbers of chicks hatched per successful nest |
chicks/nest |
Both Male and Female |
Hatchling |
26 (1991), 35 (1992) nests |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
|
Growth Rate |
0.105 |
growth rate |
g/day per g body mass |
Both Male and Female |
Juvenile |
42 |
Fuente de Piedra lake, s. Spain |
Exposure Factor Datasets |
SPAIN |
|