The leaf litter consists of vegetable fragments/waste (e.g., leaves, fruits, twigs) and animals. Acting on soil fertilization through its decomposition and fragmentation by abiotic factors (for example, bacteria, fungi, invertebrates, and vertebrates), helping in the process of nutrient cycling, becoming an alternative in the recovery of degraded areas. Its production varies according to the climatic conditions of the region, being the observation as greater leaf litter production in tropical and subtropical areas, as well as the semi-arid regions, where the plants in greater depth lose their leaves allowing a higher deposition of the biomass in the soil. The leaf litter still acts, as it applies to a diversity of animals that they use as a means to develop. Among the most representative animals are the Annelida (Oligochaeta), Myriapoda (Chilopoda and Diplopoda), Hexapoda (Diptera, Hemiptera, Orthoptera, Coleoptera, Blattodea, Isoptera, Hymenoptera, Lepidoptera, Isopoda, Thysanura), Cheliceriformes Araneae, Scorpiones, Pseudoscorpiones and Opiliones), Mollusca (Gastropoda). All these factors make the leaf litter, a source of nutrients rich in organic compounds that help improve soil fertility and provides the animals that live in it a universe of ecological niches that suit the needs of each species.Leaf litter consists of vegetables (e.g., leaves, fruit, twigs) and animal debris/debris. It acts in soil fertilization through its decomposition and fragmentation by abiotic and biotic factors (such as bacteria, fungi, invertebrates, and vertebrates), which help in the nutrient cycling process, making it an alternative to the recovery of degraded areas. This research aims to survey information on the interactions of litter fauna with forest environments, considering the main groups and their contributions to nutrient cycling and soil fertilization in degraded areas. For the elaboration of the research, extensive research was carried out using the academic Google, Science Direct, and Scopus platforms, where it was possible to gather information about the action of the litter fauna in the formation, fragmentation, decomposition, and fertilization of the soil. Litter production varies according to the climatic conditions in the region. There is a greater production in tropical and subtropical regions and semi-arid regions due to the deciduous capacity of plants in dry periods, allowing greater deposition of biomass in the soil. The litter acts as a shelter for a high faunal diversity. Among them the most representative ones are Annelida (Oligochaeta), Myriapoda (Chilopoda/Diplopoda), Hexapoda (Diptera, Hemiptera, Orthoptera, Coleoptera, Blattodea, Isoptera, Hymenoptera, Lepidoptera, Isopoda, Thysanura), Cheliceriformes Araneae, Scorpiones, Pseudoscorpiones, and Opiliones), Mollusca (Gastropoda).. All these factors make litter a source of nutrients rich in organic compounds that help improve soil fertility and provide the animals that inhabit it with a universe of ecological niches suited to the needs of each species
