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| Description: Reasons for biodiversity losses are multifaceted and factors may interact synergistically Causes of population decline: Habitat alteration Invasive species Pollution Overharvesting Climate change Habitat alteration The greatest cause of biodiversity loss Farming simplifies communities Grazing modifies the grassland structure and species composition Clearing forests removes resources organisms need Hydroelectric dams turn rivers into reservoirs upstream Urbanization and suburban sprawl reduce natural communities A few species (i.e., pigeons, rats) benefit from changing habitats Picture Stats: Views: 281 Filesize: 65.9kB Height: 862 Width: 978 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=35768 |