species diversity

• Species diversity


  The number of species and abundance of every species in a given community
• Each species has a part to play, and this is the reason why diversity of species is essential
• Biodiversity


  The variety of all life on earth
• Levels of biodiversity


  • Genetic diversity
  • Ecosystem diversity
  • Species diversity
• Genetic diversity


  The difference in the genetic composition of each organism
• Ecosystem diversity


  The different kinds of places where organisms live and the interconnections that bind these organisms together
• Species diversity


  The difference within species or difference between similar species
• A species is the fundamental unit of diversity
• Typological Species Concept


  Defines species as a group whose members share certain characteristics that distinguish them from other species
• Biological Species Concept


  Considers species as a distinguished group of populations whose members are capable of interbreeding successfully and are reproductively isolated from the other groups to produce fertile offspring
• Homo sapiens


  • Tremendous morphological variation within the species
• Species


  The basic unit of classification
• Three ideas that support what species are


  • Typological Species Concept
  • Biological Species Concept
  • Phylogenetic Species Concept
• There is tremendous morphological variation within Homo sapiens
• Some species are very similar morphologically but cannot interbreed such as the Eastern and Western meadowlark</b>
• Reproductive isolation


  A natural mechanism of preventing different species from producing viable offspring
• In the case of artificial breeding, involving two species from different populations, by law of reproductive isolation, the resulting hybrid is incapable of developing into a viable, fertile adult
• Phylogenetic Species Concept


  Defines species as a group of organisms with a shared, unique genetic history. It uses this concept to classify species by looking at a group whose members come from a common ancestor and have shared a unique evolutionary history, possessing a combination of certain defining, or derived traits
• Species richness


  The simplest measurement of species diversity, relating to the number of species inhabiting a given area or habitat
• Species evenness


  Measures how many individual organisms belong to each species, referring to the similarity in numbers or equal abundance of species in a particular area
• Species dominance


  Refers to a dominant species distributed across a given area, where one species has the most number of individuals compared to other species
• Community A consists of five different species with a total of 50 individuals, each species having 10 individuals
• Community B also consists of five different species with a total of 50 individuals, with two species having 10 members each and the others having 4, 6, and 20 members
• The different kinds of nuts represent the different species in a community
• Biodiversity


  The variety among living organisms
• Species evenness


  The similarity in abundance of species of a certain community
• Species diversity


  Communities consisting of numerous kinds of species
• Species dominance


  A community that may be highly populated but may not be diverse
• A male donkey and a female horse produced a mule
• An adult man and woman produced a baby
• A zebra and a horse originate from a common ancestor
• Gorillas, chimps, and humans closely related to orangutans
• Siblings share certain characteristics from their parents but they differ from each other