Books > Sport & Leisure > Natural history, country life & pets > Wild animals
|
Buy Now
On the Origin of Allopatric Primate Species and the Principle of Metachromic Bleaching - Discrimination of Deviant Adolescent Males Driving Allopatric Speciation in Territorial Social Primates (Paperback)
Loot Price: R1,194
Discovery Miles 11 940
|
|
On the Origin of Allopatric Primate Species and the Principle of Metachromic Bleaching - Discrimination of Deviant Adolescent Males Driving Allopatric Speciation in Territorial Social Primates (Paperback)
Expected to ship within 10 - 15 working days
|
Donate to Gift Of The Givers
Total price: R1,214
Discovery Miles: 12 140
|
Here we present a theory on the origin of allopatric primate
species that follows - at least in Neotropical primates - the
irreversible trend to albinotic skin and coat color, called
"metachromic bleaching." It explains why primates constitute such
an exceptionally diverse, species-rich, and colorful Order in the
Class Mammalia. The theory is in tune with the principle of
evolutionary change in tegumentary colors called "metachromism," a
hypothesis propounded by the late Philip Hershkovitz. Metachromism
holds the evolutionary change in hair, skin, and eye melanins
following an orderly and irreversible sequence that ends in loss of
pigment becoming albinotic, cream to silvery or white. In about all
extant sociable Neotropical monkeys we identified an irreversible
trend according to which metachromic varieties depart from the
saturated eumelanin (agouti, black or blackish brown) archetypic
form and then speciate into allopatric taxa following the trend to
albinotic skin and coat color. Speciation goes either along the
eumelanin pathway (from gray to silvery to cream to white), or the
pheomelanin pathway (from red to orange to yellow to white), or a
combination of the two. The theory represents a new evolutionary
concept that seems to act indefinitely in a non-adaptive way in the
population dynamics of male-hierarchic societies of all sociable
primates that act territorial. We have tested the theory in all 17
extant Neotropical monkey genera. Our theory suggests the trend to
allopatry among metachromic varieties in a social group or
population to be the principal behavioral factor that empowers
metachromic processes in sociable Neotropical monkeys. It may well
represent the principal mechanism behind speciation, radiation,
niche separation, and phylogeography in all sociable primates that
hold male-defended territories. We urge field biologists who study
primate distributions, demography and phylogeography in the Old
World to take our theory to the test in the equally colorful
Catarrhini.
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!
|
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.