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Biology Articles » Biogeography

Biogeography

Biogeography is a science that attempts to describe the changing distributions and geographic patterns of living and fossil species of plants and animals. It is also concerned with the factors responsible for the variations in distributions. It therefore wants to answer questions as to where do species occur, how the species got to be where they are, and where are the greatest concentrations. It also tries to explain in part the causes of biodiversity.


Biogeography Articles

Meta-population structure in a coral reef fish demonstrated by genetic data on patterns of migration, extinction and re-colonisation
Management strategies for coral reefs are dependant on information about the spatial population structure and connectivity of reef organisms.

Date: 27 Oct 2008, Rating: 2.00, 14 pages

Mitogenomic evaluation of the historical biogeography of cichlids toward reliable dating of teleostean divergences
An alternative source of time constraints in teleostean phylogeny by evaluating a biogeographic hypothesis concerning freshwater fishes from the family Cichlidae (Perciformes: Labroidei).

Date: 23 Oct 2008, Rating: not rated, 11 pages

Phylogeny and biogeography of African Murinae based on mitochondrial and nuclear gene sequences, with a new tribal classification of the subfamily
A report on the results of phylogenetic analyses of the endemic African murines through a broad sampling of murine diversity from all their distribution area, based on the mitochondrial cytochrome b gene and the two nuclear gene fragments

Date: 23 Oct 2008, Rating: 1.00, 11 pages

Report Challenges Common Ecological Hypothesis About Species Abundance
A new report finds little empirical evidence to support a widely held ecological assumption that species are most abundant near the centers of their geographic ranges and decline in abundance near the ranges' edges.

Date: 22 Oct 2008, Rating: not rated

Global Map Shows New Patterns Of Extinction Risk
The most detailed world map of mammals, birds and amphibians ever produced shows that endangered species from these groups do not inhabit the same geographical areas

Date: 22 Oct 2008, Rating: not rated

Illicit Crops Threaten Birds In Colombia
While Colombia has more bird species than any other country worldwide, much of their habitat is also suitable for growing coca and opium poppies.

Date: 22 Oct 2008, Rating: not rated

Climate Change And Deforestation Will Lead To Declines In Global Bird Diversity, Study Warns
Global warming and the destruction of natural habitats will lead to significant declines and extinctions in the world’s 8,750 terrestrial bird species over the next century,

Date: 22 Oct 2008, Rating: 1.67

Paleontologists Establish First Age Distribution Of Non-avian Dinosaur Population
For the first time, scientists have established the age structure of a non-avian dinosaur population.

Date: 22 Oct 2008, Rating: 2.33

Arctic Mystery No Longer: Dinosaurs Walked Canada's Great North
Hans Larsson, a McGill University palaeontologist (located in Montreal, Canada), has found physical proof that Canada's Arctic regions once had a Jurassic era.

Date: 22 Oct 2008, Rating: not rated

Two Dinosaurs From Africa Give Clues To Continents’ Split
The fossil skull of a wrinkle-faced, meat-eating dinosaur whose cousins lived as far away as South America and India has emerged from the African Sahara

Date: 22 Oct 2008, Rating: 3.00

Neighbors Gone, Fruits Gone, Species Gone
Neighbors gone, sex gone, fruits gone, species gone. This is the ultra-short conclusion of the findings in a study

Date: 29 Nov 2007, Rating: not rated

Scientists Reconstruct Migration Of Avian Flu Virus
UC Irvine researchers have combined genetic and geographic data of the H5N1 avian flu virus to reconstruct its history over the past decade.

Date: 29 Nov 2007, Rating: not rated

Out Of Africa -- Bacteria, As Well: Homo Sapiens And H. Pylori Jointly Spread Across The Globe
When man made his way out of Africa some 60,000 years ago to populate the world, he was not alone

Date: 29 Nov 2007, Rating: 1.00

Geography Predicts Human Genetic Diversity
By analyzing the relationship between the geographic location of current human populations in relation to East Africa and the genetic variability within these populations

Date: 29 Nov 2007, Rating: 1.50

Why Are There So Many More Species Of Insects? Because Insects Have Been Here Longer
In a study appearing in the April issue of the American Naturalist, McPeek and Brown show that many insect groups like beetles and butterflies have fantastic numbers of species

Date: 29 Nov 2007, Rating: not rated

Global Map Shows New Patterns Of Extinction Risk
The most detailed world map of mammals, birds and amphibians ever produced shows that endangered species from these groups do not inhabit the same geographical areas

Date: 29 Nov 2007, Rating: not rated

First Surveys Of Tanzanian Mountains Reveal 160+ Animal Species, Including New & Endemic
The first field surveys of the Rubeho Mountains in Tanzania revealed over 160 animal species--including a new species of frog and eleven endemic species

Date: 29 Nov 2007, Rating: 5.00

New Studies Find Amazing Concentration Of Species Unique To East African Mountains
New studies published this month in the scientific journal Biological Conservation document an amazing concentration of over 1000 species unique

Date: 29 Nov 2007, Rating: 2.33

Understanding Earth's Underwater Forests: Kelp Demography Off The Coast Of California
They share many of the same qualities as old growth forests, but the only way to really appreciate these magnificent places is through the lens of a diving mask.

Date: 29 Nov 2007, Rating: not rated

Unraveling The Mystery Of Modern Potatoes' Origins
When it comes to veggies, almost everyone can agree on potatoes. But despite its popularity, the common brown potato has a colorful history that some researchers are still disputing.

Date: 29 Nov 2007, Rating: not rated