Related by context. Frequent words. (Click for all words.) 71 chytrid fungus 71 chytrid 64 amphibian populations 61 amphibian species 59 fungal disease 59 varroa mite 58 protozoan 58 invasive insect 58 chestnut blight 57 White Nose Syndrome 57 P. falciparum 56 P. vivax 56 varroa mites 56 fungus 56 Varroa 55 Phytophthora 55 Ebola hemorrhagic fever 55 Neisseria meningitidis 55 T. gondii 54 fungal pathogens 54 Y. pestis 54 Toxoplasma gondii 54 amphibians 54 parasitic worm 54 falciparum 54 overhunting 54 species 54 citrus greening disease 54 Vibrio cholerae 53 frog species 53 Wolbachia 53 adelgid 53 Candida albicans 53 microbial pathogens 53 parasitic disease 53 megafauna 53 parasitic diseases 53 mutated virus 52 mycobacterium 52 tsetse flies 52 dengue viruses 52 overfishing pollution 52 lowland gorillas 52 aspergillosis 52 Invasive plants 52 whirling disease 52 Didymo 52 melioidosis 52 Anopheles 52 seagrasses 52 tick borne 52 Buruli ulcer 52 dieback 52 sea lampreys 52 bacterial pathogen 52 Chlamydia trachomatis 51 Argentine ants 51 montane 51 onchocerciasis 51 parasitic worms 51 rinderpest 51 viral pathogens 51 virulent strains 51 mealybug 51 yaws 51 hemlock woolly adelgid 51 Critically Endangered 51 whitefly 51 Colony Collapse Disorder 51 pathogen 51 Leishmania 51 salvinia 51 parasite 51 Aedes aegypti 51 Vibrio 51 Toxoplasma 51 bollworms 51 bee populations 51 vertebrate species 51 desert locusts 51 Ebola virus 50 genetic alteration 50 invasive species 50 viral hemorrhagic septicemia 50 Plasmodium falciparum 50 phylloxera 50 varroa 50 stoat 50 petrels 50 Phragmites 50 schistosomiasis 50 superweeds 50 simian immunodeficiency virus 50 mutant strain 50 parasitic infection 50 respiratory syndrome 50 herpes viruses 50 spartina 50 Aedes aegypti mosquito 50 raccoon rabies 50 trypanosomiasis