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  • 2. 1: Species Concepts - Biology LibreTexts
    The Biological Species Concept By far the most well-known species concept is the biological species concept, which was proposed by evolutionary biologist Ernst Mayr The biological species concept states that a species is a group of actually or potentially interbreeding natural populations which are reproductively isolated from other such groups
  • In search of ant ancestors | PNAS
    From this modest beginning arose the current diversity of the family Formicidae, numbering over 9,500 described species and an estimated 3,000 to 9,000 additional species as yet unknown to science Today ants occupy keystone positions in most terrestrial environments, serving as major conduits of energy and organic material
  • Top 10 species new to science in 2021 | Kew
    Seven new-to-science species of Nicotiana (wild tobacco) were described in 2021 by Kew scientist Mark Chase and his collaborators at Curtin University and University of Vienna One of the species, Nicotiana insecticida, has sticky glands covering all its surfaces that regularly snare and kill small insects such as gnats, aphids and small flies
  • Phylogenomics resolves the timing and pattern of insect . . .
    We sequenced more than 2 5 gigabases (Gb) of cDNA from each of 103 insect species, which represented all extant insect orders () Additionally, we included published transcript sequence data that met our standards (table S2) and official gene sets of 14 arthropods with sequenced draft genomes (), of which 12 served as references during orthology prediction of transcripts (tables S2 and S4)
  • Why there are so many species of tropical trees and other . . .
    Together these plots are home to more than 3,000 tree species and roughly 2 4 million trees stronger for rare species in the tropics; this may explain why rainforests harbor so many rare
  • Chapter 11 Flashcards - Quizlet
    Study with Quizlet and memorize flashcards containing terms like 1 When Aldo Leopold said, "The first rule to intelligent tinkering is to save all the pieces " In terms of biodiversity he meant that we should A Save records of all species that have disappeared B Not interfere with the disappearance of species C Not cause species to disappear D Not interfere with nature E Aldo Leopold did





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