Hasil studi di keempat tipe habitat menjumpai 142 jenis burung dari 42 suku. Burung diamati dengan melakukan survei deskriptif dengan metode survei cepat biodiversitas, dengan mengkoleksi data pada transek sepanjang 1 km. Studi komunitas burung di berbagai tipe habitat, pada hutan, agroforest karet, monokultur karet dan daerah pemukiman telah dilakukan di Kabupaten Simalungun dan Asahan, Provinsi Sumatra Utara. Burung berperan penting dalam ekosistem, namun pada ekosistem yang terganggu peran mereka menjadi terbatas akibat perubahan habitat. KERAGAMAN JENIS BURUNG PADA BERBAGAI PEMANFAATAN LAHAN DAN GRADASI DI HUTAN, AGROFOREST KARET DAN PERKEBUNAN KARET DI SUMATERA UTARA. The different tree compositions in the four habitats of the rubber estate plantations and surrounding areas influenced the number of bird species, bird diversity and species composition. Changes in the structure and composition of the vegetation in disturbed forests and cleared land determined the richness of the bird species. Based on CITES categories, one species was listed in the Appendix I, 12 species were classified in Appendix II and 26 bird species were protected under Indonesian regulations. Regarding the IUCN red list species, 12 bird species of near-threatened status and 2 species of vulnerable status were recorded. Natural forests had the highest diversity of bird species, followed by rubber agroforests, emplacement areas and rubber plantations, with a Shannon-Wiener index of 3.8, 3.6, 3.0 and 2.9, respectively. The results showed that in total, 142 species of birds from 42 families were observed in the four habitats. The birds were observed using descriptive survey methods by implementing a quick biodiversity survey, data were collected along one km transect. The study was conducted in four habitats: natural forest, rubber agroforests, rubber monoculture plantations and emplacement areas. This paper studies the birds' habitats in Simalungun and Asahan Districts, North Sumatra. Key words: diurnal raptor, endemic, migration, threats and conservation statusīirds play a pivotal role in the ecosystem, but in disturbed areas their roles may be limited due to the changes of their natural habitats. This paper will describe and discuss two main raptor related topics, current status of all diurnal raptors in Indonesia highlighting species account, endemism and migration, and population threats to raptors in the country. Further, four species are listed as Near Threatened (Gurney’s Eagle (Aquila gurneyi), Lesser Fish -eagle (Ichthyophaga humilis), Grey-headed Fish-eagle (Ichthyophaga ichthyaetus)and Whitefronted Falconet (Microhierax latifrons)). Two are listed as Critically Endangered (Flores Hawk-eagle (Spizaetus floris) and Bawean Serpent-eagle (Spilornis baweanus)), one Endangered ( Javan Hawk-eagle (Nisaetus bartelsi)), and four Vulnerable (New Guinea Harpy Eagle (Harpyopsis novaeguineae), Greater Spotted Eagle (Aquila clanga), Wallace’s Hawk-eagle (Spizaetus nanus), and Mountain Serpent -eagle (Spilornis kinabaluensis)). Unfortunately, rampant habitat loss and illegal trade have resulted in threatened status (IUCN, 2009) for some species. Indonesia is also the wintering area of many raptor species from the northern third of eastern Asia. This high endemism among raptor species reflects diversity and uniqueness of their habitats, which is dominated by tropical rainforests. Raptor ID was designed and created by Jean Chamberlain.Abstract: There are 81 species of diurnal raptors found in Indonesia and, depending on taxonomic views, 10 to 17 of these are endemic. The photos that are most needed are listed, but multiple photos of the same species may be used when they are available, particularly of juveniles and species that differ by region or subspecies. If you have good photos of raptors, please consider contributing them. Many thanks to the people who have generously contributed the photos used on this site. ![]() ![]() A series of photos document the different stages of development of the young for some of the species. Photos show the species characteristics, age differences and how to tell the species from similar ones. For each species there are photos of adults, juveniles, nestlings and for many, close-ups of the head, tail, wings and feet. Most of the raptors found in North America are represented. This site was created to help raptor rehabilitators identify the various species that come in for care.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |