INTRODUCTION
The scientific name for the Australian terrestrial toadlet
The number of experimental blocks involved in the following study.
Did fertilization success and survival rates vary across families in this study? (Y/N)
YES
These environmental factors can be difficult to control in studies on natural animal populations, leading to inconsistent results.
What are variable environmental conditions?
This type of polyandry, where females mate with multiple males successively, contrasts with simultaneous polyandry found in other species.
What is sequential polyandry?
The adaptive advantage of polyandry falls into these two broad categories.
What is Direct "material" benefits and Indirect "genetic" benefits?
This breeding design was used to test the intrinsic male quality hypothesis and the genetic compatibility hypothesis in the Australian terrestrial toadlet, Pseudophryne bibronii.
What is the North Carolina Type II breeding design?
The study found this type of genetic effect to be significant for offspring viability, but not for fertilization success.
What is nonadditive genetic effects?
This challenge occurs when it's hard to track how many times females mate in the wild, especially in different environments.
What is varying mating frequency?
This hypothesis states that polyandry may provide offspring with "compatible genes" to increase overall fitness.
What is the genetic compatibility hypothesis?
What is the genetic compatibility hypothesis?
What is polyandry may provide offspring with "compatible genes" to increase overall fitness.
Reproductively mature males were collected from their nests after randomly locating nest sites by tracking this.
What is a resident male's advertisement call?
The study observed strong positive correlations between these two stages of offspring development.
What are embryo viability and larval viability?
The authors suggest that this type of environmental variation might have influenced the estimates of nonadditive genetic variance.
What is batch-specific microenvironmental conditions?
Fertilization success was determined as the proportion of embryos developing to this stage.
What is Gosner Stage 13?
Given the study's findings on the importance of nonadditive genetic effects in polyandrous brown toadlets, what future research direction could further explain the role of genetic compatibility in the evolution of polyandry, and why might it be significant?
No right answer, open ended!!!