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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

Nope, not a jackal but a wolf!
Aren't we all familiar with this infamous line: "a wolf hiding in sheep's clothing…"? Well, how about "wolf hiding in a jackal's rig"? Based on genetic analysis, the animal is not a jackal but a distinct subspecies of grey wolf.

Date: 28 Mar 2011, Rating: not rated

Google Earth Aids Discovery Of Early African Mammal Fossils
A limestone countertop, a practiced eye and Google Earth all played roles in the discovery of a trove of fossils that may shed light on the origins of African wildlife.

Date: 4 Mar 2010, Rating: 5.00

King Crabs Go Deep To Avoid Hot Water
Researchers from the University of Southampton have drawn together 200 years' worth of oceanographic knowledge to investigate the distribution of a notorious deep-sea giant - the king crab.

Date: 4 Mar 2010, Rating: 5.00

Raft or Bridge: How Did Iguanas Reach Tiny Pacific Islands?
Scientists have long puzzled over how iguanas, a group of lizards mostly found in the Americas, came to inhabit the isolated Pacific islands of Fiji and Tonga.

Date: 4 Mar 2010, Rating: not rated

Fish Poisoning May Be Why Polynesians Left Paradise
Ciguatera poisoning, the food-borne disease that can come from eating large, carnivorous reef fish, causes vomiting, headaches, and a burning sensation upon contact with cold surfaces.

Date: 4 Mar 2010, Rating: not rated

Sea Level Rises Offer New Explanation For Puzzling Biological Divide Along Malay Peninsula
Ecologists at the University of California, San Diego, offer a new explanation for an apparently abrupt switch in the kinds in of mammals found along the Malay Peninsula in southeast Asia in the absence of any geographical barrier.

Date: 4 Mar 2010, Rating: 1.00

Plant Life Discovery On Boston Harbor Islands Could Help Future Damage Caused By Exotic Species
The recent findings by a team of Northeastern University ecologists studying plant life on the Boston Harbor Islands may advance societal efforts to stem the damage caused by invading exotic species.

Date: 4 Mar 2010, Rating: not rated

Flower Garden Banks National Marine Sanctuary Among Healthiest Coral Reefs In Gulf Of Mexico
Flower Garden Banks National Marine Sanctuary is among the healthiest coral reef ecosystems in the tropical Caribbean and Gulf of Mexico

Date: 4 Mar 2010, Rating: not rated

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: 3.00, 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: 1.75

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: 2.14

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: 3.75

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: 3.67

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