tadpoles were observed most frequently, on the earliest dates, and with the highest variation of developmental stages at the Shakes Hot Springs site.
Mating pattern variability among western toad
(Bufo boreas) populations.
The team behind the discoveries used multiple tests, including DNA, to analyze the characteristics of the toads and found evidence to support the recognition of three new species, as distinct from the closely related Western toad
which is common throughout the western United States.
Committee on the Status of Endangered Wildlife in Canada (2012) COSEWIC assessment and status report on the Western Toad
Anaxyrus boreas in Canada (COSEWIC: Ottawa)
An additional nickname for Arkansas, Wonder State can be transposed to western toad
, a large toad of western North America, according to the OED.
Bimodal nocturnal activity of the western toad
(Bufo boreas) in relation to ambient illumination.
The gray wolf, trout, salmon, arctic fox, desert bighorn sheep, desert tortoise, Edith's checkerspot butterfly, golden toad, Hawaiian monk seal, lobster, manatee, painted turtle, penguin, streamside salamander and western toad
are just a few of the species on Defenders' list that are negatively impacted by our profligate fossil fuel use.
Ponds also provide breeding habitat for other amphibians, including the Pacific tree frog (Hyla regilla) and western toad
(Bufo boreas), as well as habitat for mammals, reptiles, and birds.
The breeding season at Fiander Lake is an opportune time to gather information about the Western toad
population, said Mr.
Instead, it's an outlandish, peculiar landscape and home to no fewer than 375 plant species, 2,000 insect species, 148 bird species, 47 types of mammals, seven reptile species and the western toad
, which is the only amphibian found in the area.
"We've known for some time that elevated levels of UV-B radiation can cause stress and higher levels of mortality to embryos of the western toad
and some other species.
In the northwestern United States, the Cascades frog and the western toad
are suffering reduced breeding success because of increased levels of ultraviolet-B radiation - now penetrating a thinned ozone layer - which destroys their eggs in the species' high-altitude breeding pools.