Page 10 - e-MODULE BIOLOGY ZALDY
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3.  Birds  that  are  colorful  or  have  beautiful  feathers,  for  example  a.  small  paradise
                            (Paradisea minor), b. bird of paradise climber (Puloris magnificus). `
















                                       (a)                                        (b)



                    c.   Transitional animal species


                            The  animals  in  the  transitional  region  (Sulawesi)  have  characteristics  similar  to
                        those  of  the  Oriental  and  Australian  regions,  for  example,  hogs  deer,  anoa,  maleo,
                        komodo dragons, cuscus.










                       Pict. 1.10. (a) Hogs deer (Babirussa babirussa), (b) Maleo (Macrocephalon maleo)



               D.   Human Activities That Disrupt Biodiversity

                              Human activities can reduce biodiversity. Until now, various types of plants and
                     animals are threatened with extinction and some of them have become extinct. Indonesia
                     has lost several  important  animals,  for example the Bali tiger. Currently the animal  has
                     never been found again, possibly extinct.
                              Animals such as the one-horned rhinoceros, Bali starlings, and pangolins are also
                     threatened  with  extinction.  Not  to  mention  several  types  of  insects,  reptiles,  fish  and
                     aquatic  animals,  which  are  no  longer  found  in  our  environment.  The  extinction  of
                     biodiversity is thought to be caused by several factors :



                     1.   Habitat destruction.
                           Habitat destruction is believed to be the main cause of the extinction of organisms. If
                         the habitat is damaged then the organism does not have a suitable place to live. Habitat
                         damage can be caused because ecosystems are changed their function by humans, for
                         example,  forests  are  cut  down  to  become  agricultural  land.  These  human  activities
                         result in decreased diversity of ecosystems, species and genes.
               Biology/X.1/2020
               Nusaputera SHS                                                                              10
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