O domínio da caatinga apresenta grande heterogeneidade de paisagem, o que contribui para abundância da fauna que, apesar de se encontrar em ambiente semiárido, apresenta grande diversidade de animais. Este estudo teve como objetivo inventariar as espécies da fauna ocorrentes no Parque municipal Maurício de Oliveira da cidade de Mossoró-RN. A área de estudo está dentro dos limites do parque ecológico urbano, localizada no centro da cidade, no Município de Mossoró no interior do estado do Rio Grande do Norte. Os dados do inventário rápido foram levantados no período de seis meses com coletas semanais. A busca visual deu-se percorrendo trilhas e áreas fora das trilhas do Parque, em horários diversificados. Foi registrado, o tipo de vestígio e quando avistados, o número de indivíduos. Para a constância de ocorrência das espécies foi adotado o índice de Constância (IC). Foi observado um total de 40 espécies de animais, sendo que, o número de espécies ocasionais apresentou um total de 16 espécies, já espécies consideradas acessórias tiveram um registro de 14 espécies e, as espécies constantemente apresentaram um total de 10 espécies. O reflorestamento com espécies frutíferas do bioma deve ser implantadas para que as espécies da fauna silvestre permanecer no ambiente.
The efficiency in the initial growth of trees can be related to the ability of the seedlings in adapting to different light intensites in the enviroment. The objective of this work was to evaluate the influence of different levels of shading in the initial growth of Tabebuia aurea and Angico (Anadenanthera macrocarpa) in the nursery phase. The experiment was conducted at the Federal Rural University of Semiárido located in Mossoró-RN. The seeds of A. macrocarpa and T. aurea were collected from parent trees and donated by the Caatinga/ UFERSA / Petrobras Project, where, afterwards, they were processed. The composting used in the experiment was coconut fiber, after the substrate was placed in 55-cm³ tubes and organized in plastic supports. The seedlings were submitted to three levels of shade, full sun (absence of shade), shade of 50% and 80%. For the different levels of shading, mean values of the height/diameter ratio of the neck were obtained of 3.74 (A. macrocarpa) and 1.57 (T. aurea) for cultivation in full sun, 0% of shading, indicating that the growth of this cropt may have better results under these conditions. The highest values of the Dickson Quality Index (DQI) were observed in seedlings grown under a lower shade level of 0.03454 and 0.11719. The species T. aurea shows little tolerance when subjected to high levels of shading, showing that the luminosity interfere in the initial growth of the species. A. macrocarpa, also acquired a better development in full sun, showing less progress at higher levels of shading.
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