Murici Ecological Station an average of . The dominant vegetation is dense rainforest in the Atlantic Forest biome. In the best preserved areas, mostly at the higher elevations, the forest forms a fairly uniform closed canopy up to high that provides shade and retains moisture. Tree species include murici ("Byrsonima sericea"), "Schefflera morototoni", "Parkia pendula", "Tabebuia" species, "Pseudobombax" species, "Bowdichia virgilioides", "Tapirira guianensis", "Handroanthus impetiginosus" and "Protium" species. The understory contains seedlings of trees, palms such as "Euterpe catinga", and many lianas and epiphytes, such as "Araceae", "Orchidaceae" ("dimerandra" species, "Dichaea" species, "Rodriguezia" species, "Cattleya labiata", "Pleurothallis" species, "Epidendrum" species, "Oncidium" species and
Portia labiata is about equally effective with all sizes of web spiders up to twice "P. labiata"′s size. A female "P. labiata" is effective against insects up to twice "P. labiata"′s size when the insect is stuck in a non-salticid's web, and against insects not in webs and up to "P. labiata"′s size, while "P. labiata" seldom pursues or catches a larger insect in the open. A female "P. labiata" very seldom pursues or catches a larger insect in her own web, and is slightly less effective against smaller insects in "P. labiata"′s web than in other situations. Males are less efficient