Related by context. Frequent words. (Click for all words.) 60 chytrid 59 chytridiomycosis 56 chytrid fungus 56 Coral bleaching 56 P. ramorum 54 refugia 53 yellow legged frogs 53 Citrus canker 53 fungal pathogen 53 amphibian populations 53 Scientists theorize 53 biting midges 53 protozoan parasite 51 Colony Collapse Disorder CCD 51 invasive insect 51 species extinctions 51 migratory bird populations 51 Phytophthora ramorum 50 montane 50 frogs salamanders 50 Coral reef 50 cone snails 50 amphibian species 50 yellow legged frog 49 Varroa mite 49 White Nose Syndrome 49 swimmer itch 49 fungus 49 larval stages 49 plankton blooms 49 overhunting 49 parasitic mites 49 nesting habitats 49 Toxic algae 49 shearwater 49 toxic algae bloom 49 habitat degradation 49 beachings 49 quaggas 48 gharials 48 petrels 48 reef ecosystems 48 plesiosaurs 48 elkhorn 48 phytoplankton blooms 48 amphibians 48 bird migrations 48 toxic algae blooms 48 swine influenza viruses 48 mass beaching 48 beetle infestations 48 parasitic worm 48 moth larvae 48 red legged frogs 48 pathogenic strain 48 song thrush 48 Infestations 48 dinosaur extinction 47 platypuses 47 insect populations 47 avian species 47 tiger salamanders 47 denudation 47 wintering habitat 47 overharvested 47 decaying vegetation 47 Domoic acid 47 leopard frogs 47 parasitic infection 47 Powdery mildew 47 species 47 frogs toads 47 Rickettsia 47 overfishing pollution 47 corona virus 47 mutated virus 47 EEE virus 47 citrus greening disease 47 avian botulism 46 functionally extinct 46 unplanned urbanization 46 distinct subspecies 46 glacial retreat 46 murrelet 46 capercaillie 46 endemic species 46 spider mite 46 harlequin ducks 46 lowland forests 46 insect borne 46 seabird populations 46 chestnut blight 46 vibrio 46 simian virus 46 M. avium 46 leatherback sea turtles 46 parasitic wasp 46 hawksbill turtles 46 amphipods 46 mountain plover 46 frogs