Abstract Background The diversity of parasites attacking a host varies substantially among different host species. Understanding the factors that explain these patterns of parasite diversity is critical to identifying the ecological principles underlying biodiversity. Seabirds (Charadriiformes. Pelecaniformes and Procellariiformes) and their ectoparasitic lice (Insecta: Phthiraptera) ... https://scrubsuniforms.shop/product-category/tops/