Com o objetivo de selecionar espécies para programas de recuperação em Áreas de Preservação Permanente no Planalto Catarinense foi realizado o levantamento da composição florística e da estrutura fitossociológica e, a caracterização dos grupos ecológicos e síndromes de dispersão das espécies ocorrentes nestes locais. A área de estudo, fazenda Campo de Dentro, localizase no município de Otacílio Costa (SC), onde foi empregado o método de quadrantes, em 20 transecções compostas por 20 pontos amostrais. As espécies que apresentaram os maiores valores de importância, potenciais para recuperação, foram Sebastiania commersoniana (Baill.) L.B.Sm. & Downs; Mimosa scabrella Benth.; Cinnamomum amoenum (Nees & Mart.) Kosterm.; Lithraea brasiliensis Marchand, Ocotea pulchella (Nees & Mart.) Mez; Ilex paraguariensis A.St.-Hil.; Matayba elaeagnoides Radlk.; Ilex theezans Mart. exReissek e Vernonanthura discolor (Spreng.) H.Rob., que representam os diferentes grupos ecológicos, destacando-se a zoocoria como síndrome de dispersão. A alta diversidade de espécies arbóreas evidencia a riqueza desses locais que, muitas vezes, são negligenciados em projetos de recuperação.

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The grasslands conversion to forests is occurring globally and modifying the population dynamics of species. Here, we characterized the population dynamics of Podocarpus lambertii Klotzsch ex Endl. over four years in southern Brazilian forest–grassland mosaics. We asked (i) if the studied P. lambertii population would decrease or increase over time and (ii) what the role of forest patches is in the growth and recruitment of a P. lambertii population. Thus, we studied forest–grassland mosaics, stratified the population into four demographic classes, evaluated the population dynamics, and estimated the correlation between canopy cover and average number of individuals. All individuals of P. Lambertii occurred in forest patches. Density was high but decreased from seedlings to the reproductive stage. The population growth rate was λ = 1.025, and the recruitment of individuals was high and variable among years. The transition and mortality rates showed a pattern of reduction from seedlings to the reproductive stage. Mortality rate for seedlings and juveniles was low and concentrated at the smaller heights. The correlations between canopy cover and the average number of individuals were positive and significant. The ecological characteristics of this species and specific conditions provided by forest patches allow population growth and species conservation in the southern Brazilian forest–grassland mosaics.

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