Search Results for: ecological niche
Ecological niche
Ecological Niche Definition An ecological niche refers to the interrelationship of a species with all the biotic and... Read More
Realized niche
What is a niche? A niche can be defined as the means by which a species or an individual interacts with its environment. In... Read More
SENI Biometric Analysis on the extinct Scincidae species: Macroscincus coctei (underlined)
Brian L. Schnirel Leeway Corucia Research Center (LCRC) Courtesy: Polyphemos (2004) Introduction: It has been... Read More
Dominant species
Dominance is the state of being supreme or dominant. Community dominance refers to the form of dominance where certain... Read More
Allopatric speciation
We can define speciation as a process by which the novel genetically independent group of organisms are formed through the... Read More
Equilibrium
Equilibrium Definition In Biology Equilibrium refers to the state of balance and stability. In biology, equilibrium is... Read More
Density dependent limiting factor
What Is A Density-Dependent Limiting Factor? Density-dependent limiting factors are limiting factors, which, depending on... Read More
Community Patterns
By: Maria Victoria GonzagaIn the previous lesson, we learned what a population is, its attributes, and processes... Read More
Population
Living organisms typically prefer to live, grow, and survive in groups. Except for some species that prefer solitude - both... Read More
Fundamental niche
Definition noun The full range of environmental conditions and resources an organism can possibly occupy and use,... Read More
Interspecific competition
Interspecific Competition Definition In Biology, competition is defined as the process that occurs among species that have... Read More
Early Mammals on Earth
By the time the dinosaurs were extinct 65 million years ago, the world's landmass had split up into more or less the... Read More
Adaptive Radiation
Reviewed by: Mary Anne Clark, Ph.D.When Charles Darwin was in the Galapagos Islands, one of the first things he... Read More
Takahē (Porphyrio hochstetteri)
By: Maria Victoria GonzagaPreviously, we've seen the different animals endemic to New Zealand. Due to the... Read More
Vacant niche
Definition noun The concept in which an ecological role or space in a habitat is not filled by a species. Supplement The... Read More
Darwinian fitness
Darwinian Fitness Definition Darwinian fitness refers to the measure of an individual organism's or genotype's reproductive... Read More
Mammalian Ancestors
Humans are mammals, the most successful taxonomic class of organisms to colonize the Earth. The word mammal derives from the... Read More
Ecosystem diversity
Ecosystem Diversity Definition What is ecosystem diversity? Ecosystem diversity deals with the study of different... Read More
Analogous structures
Analogous Structures Definition In evolutionary biology, analogous structures are biological structures having similar or... Read More
Fermentation
Fermentation Definition What is fermentation? Fermentation is the breaking down of sugar molecules into simpler compounds... Read More
Still Water Animals
Through millions of years of evolution, animals living in an aquatic environment have diversified to occupy the ecological... Read More
Still Freshwater & Plants
Plants in the freshwater community provide a means of food for herbivores and harness new energy into the community as a... Read More
Ecosystem Succession
Just one of the amazing aspects of life on Earth is that it spreads to all areas where the habitat will allow it to survive.... Read More
Preadaptation
The ability of an organism to move into a new ecological niche due to adaptations it already possesses to cope with the... Read More
Adaptive radiation
Definition noun The diversification of several new species from a recent ancestral source, each adapted to utilize or... Read More
Evolution of Life – Ancient Earth
Continuing from the previous tutorial investigating the origins of life on Earth....Life began to flourish, and the... Read More
New Zealand’s Biodiversity
Written by: Maria Victoria GonzagaPeer-reviewed by: Cathy Buntting, Ph.D. and Andrea SoanesWhy is New... Read More
Reproduction
Reproduction Definition Reproduction is a biological phenomenon of producing offspring/s. i.e. more of its kind. Depending... Read More
Divergent evolution
Divergent Evolution Definition Divergent evolution refers to the process by which interbreeding species diverged into two... Read More
Ecological buffer zone
Definition noun A zone or an area that serves not for any anthropogenic use but as a conserved natural habitat where plants... Read More
Darwin and Natural Selection
Reviewed by: Mary Anne Clark, Ph.D.In the 19th century, a man called Charles Darwin, a biologist from England,... Read More
The Homo Species
Over the long term, it looked like Homo would supersede any ‘similar model’ of animals due to their unique tool using... Read More
Lotic Communities & Algae
In general, the diversity of plant species in a lotic community is small compared to that of a still water (lentic)... Read More
The Hominids
Although humans in today's world are the most advanced species on the planet, we previously shared the exact same genetic... Read More
Arthropods
There are over two million species of arthropods, who initially arrived on Earth in the middle of the Cambrian period.... Read More
Natural selection
Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More
Fastidious
Fastidious Definition We can define fastidious as a term used in microbiology to denote a species that lacks the ability to... Read More
