Pesticides and pesticide degradates were detected frequently in frog breeding habitats (water and sediment) as well as in frog tissue.
Tadpoles and frogs of the Green and Golden Bell frog, Peron's Tree frog, Striped Marsh frog were collected from a semi-captive Green and Golden Bell frog breeding site in greater Sydney, NSW, Australia.
Considering previous results and moor frog breeding behaviour, we wanted to know if male colouration affects (1) mating success, (2) mate recognition by males or (3) both.
Habitat models also indicate that Columbia spotted frog breeding sites consist of wetlands on flat ground with high solar insolation and that this species is sensitive to nearby development, indicating that as this landscape becomes further developed, this species may require habitat protection for persistence.
In a before after control impact (BACI) experimental design, the mean shade above cleaned ditches decreased from 66%to35%5% and appeared to be the main reason for a dramatic increase in frog breeding in the next spring.
The researchers hope to finalize plans in the next few weeks--in time for the start of the frog breeding season in the southern United States.
During our study, 53% of Crawfish Frog breeding adults tested positive for Bd in at least one sample; 27% entered breeding wetlands Bd positive; 46% exited wetlands Bd positive.
In other water frog breeding systems, various studies have tested one or more of the four hybrid models presented in the introduction.
In spite of multiple approaches, the importance of differential selection in shaping genotype proportions thus remains an interesting, but largely unsettled, matter in all-hybrid populations as well as in other water frog breeding systems.
If you are raising your frogs outside, you might end up with a permanent frog breeding society.
