1.1 General Introduction Principal -- 2. Zoloogical Groups -- 2.1 Arachnids -- 2.2 Insects: Migrants, endemics, and old to new pests -- 2.3 Freshwater decapod crustaceans: the challenges of documenting and preserving a very diverse fauna -- 2.4 Mexican molluscs: In the process of a 'silent extinction' -- 2.5 Amphibians and reptiles -- 2.6 Anthropocene impacts on the Mexican freshwater fish fauna -- 2.7 Mexican avifaunas of the Anthropocene -- 2.8 Marine birds -- 2.9 Terrestrial mammals -- 2.10 Marine mammals -- 2.11Mexican bats: conservation challenges in the Anthropocene -- 3. Ecosytems -- 3.1 The impact of the growth of urban environments on Mexican fauna -- 3.2 Anchialine fauna of the Yucatan Peninsula -- 3.3 Semi-terrestrial and aquatic invertebrates and fish in mangroves in México -- 3.4 Defaunation of Mexican tropical forests3.5 Mezcal boom and extinction debts in Mexican arid ecosystems -- 3.6 Deep sea life -- 3.7 The importance of agroecosystems for the Mexican fauna -- 3.8 The salamanders of theMexican cloud forest -- 3.9 Human effects on caves in Mexico -- 3.10 Fauna of lakes and rivers -- 3.11 Coral reef faunal assemblages in the Mexican Caribbean: assessing the cryptic biodiversity -- 4 Processes -- 4.1 Contemporary climate change impacts on Mexican fauna -- 4.2 Invasive alien species of invertebrates and fishes introduced to Mexican freshwater systems -- 4.3 Are marine fisheries sustainable? -- 4.4 Pest dynamics in Mexican forests -- 4.5 Pollination by wild and managed animal vectors -- 4.6 Social participation strategies for the conservation of Mexican fauna -- 4.7 Citizen science for deep ocean biodiversity: a crowdsourcing tool in support of conservation -- 4.8 Legal actions for the conservation of fauna.