Vocabulary
Describes a species or population in which individuals have discrete, genetically determined, forms/morphs.
What is Polymorphic?
Species with this trait generally experience higher speciation rates, especially in birds of prey.
What is color polymorphism?
A collection of physiological processes, mechanisms, and behaviors that prevent the members of two different species that mate from reproducing, or which ensure that any offspring that may be produced is not fertile.
What is Reproductive Isolation?
The formation of a genetically distinct population of individuals from a pre-existing population, defined by an inability to interbreed.
what is speciation?
In this context, the rate at which a species changes from being color-polymorphic to monomorphic or vice versa.
What is Transition Rate?
This trait is often lost during speciation, leading to monomorphic descendant species.
What is polymorphism?
The process by which populations evolve different traits in response to different environmental pressures.
What is Adaptive Divergence?
speciation between populations that are geographically seperated.
What is Allopatric Speciation?
The evolution of reproductive isolation between populations or subsets of a single population by adaptation to different environments or ecological niches.
What is Ecological Speciation?
What bird species did not show evidence that species with color polymorphism generally experience higher speciation rates, especially in birds of prey?
What is a pheasant?
_____ can drive the formation of new species through two main mechanisms: ecological speciation and mutation-order speciation.
what is Natural Selection?
Also known as peripheral isolation, it is a type of allopatric speciation where a small part of a population becomes isolated on the edges and forms a new species.
What is peripatric speciation?
The evolution of reproductive isolation by the chance occurrence and fixation of different alleles between populations adapting to similar selection pressures.
What is Mutation-Order Speciation?
______ suggests that polymorphism may be a temporary stage in the process of speciation.
What is a species becoming monomorphic?
compiles evidence from laboratory and field studies using _____.
What are sticklebacks and monkey flowers?
process of speciation that occurs when diverging populations have distributions that abut one another
what is parapatric speciation?
The statistical model used to estimate how a binary trait affects rates of speciation and extinction in a group, using phylogenetic trees.
What is the BiSSE Model?
Species with color polymorphism generally experience higher speciation rates, especially in birds of prey.
What are the ends of a ratio cline in morph frequencies?
_____ demonstrate that natural selection can predictably produce reproductive isolation and strengthen the boundaries between species.
What is Parallel Speciation?
Process of speciation where diverging populations are not geographically separated.
what is sympatric speciation?