O objetivo deste trabalho foi avaliar a produção de matéria seca de genótipos de capim‑elefante (Pennisetum purpureum) manejado sob lotação intermitente. Utilizou-se o delineamento inteiramente casualizado, com dois genótipos e três repetições. Os tratamentos consistiram da combinação fatorial (2x2x2) de genótipos ('BRS Kurumi' e o clone CNPGL 00‑1‑3), dois níveis de interceptação luminosas (IL) por ocasião da entrada dos animais nos piquetes (90 e 95%) e duas alturas pós‑pastejo do dossel (30 e 50 cm). Foram usadas 24 novilhas mestiças Holandês x Zebu. A densidade de lotação variou para que se finalizasse os períodos de pastejo em dois dias. O intervalo entre desfolhações com 95% de IL resultou em maior massa foliar por ciclo de pastejo. A altura pós‑patejo de 30 cm não afetou o número de ciclos de pastejo, mas proporcionou maior taxa de acúmulo de forragem. A cultivar BRS Kurumi apresenta maior crescimento do pasto, menor intervalo entre pastejos e maior número de ciclos de pastejo, o que resulta em maior produção de forragem na estação de crescimento

The objective of this work was to evaluate the dry matter production of elephant grass (Pennisetum purpureum) genotypes, managed under intermittent stocking. A completely randomized design was used, with two genotypes and three replicates. The treatments consisted of factorial combinations (2x2x2) of genotypes ('BRS Kurumi' and the clone CNPGL 00‑1‑3), two light interception levels (LI) at the onset of grazing (90 and 95%), and two post‑grazing canopy heights (30 and 50 cm). A total of 24 Holstein x Zebu crossbred heifers were used. The stocking density varied in order to finish the grazing periods in two days. The interval between the defoliation, based on 95% LI, resulted in a higher leaf mass per grazing cycle. The post‑grazing height of 30 cm did not affect the number of grazing cycles but provided a greater herbage accumulation rate. The cultivar BRS Kurumi has higher pasture growth, lower rest period, and greater number of grazing cycles, which results in increased forage production in the growing season.

The aim of this study was to evaluate during the dry and rainy seasons the morphogenesis traits of two clones of dwarf elephant grass under different management strategies. The study was conducted in a factorial 2 × 2 × 3 design, using two clones, one green and one purple, two residual heights, 25 and 45 cm, and three frequencies of defoliation according to the light interception of 90, 95 and 100%. The design was a randomized block with three replications. The variables were leaf elongation and leaf senescence rate, stem elongation rate and phyllochron. The leaf lifespan and the number of living leaves per tiller were also estimated. The clones presented low stem elongation rates, showing adaptation for grazing use. In the rainy season, the light interception of 100% promoted the highest stem elongation rate and increased the leaf senescence rate. In the dry season, the leaf elongation rate (LER) was higher for the purple clone than for the green one (23 vs 15 mm.tiller-1.day-1). In the rainy season, the LER of the green clone exceeded that of the purple one by 71% (149 vs. 87 mm.tiller-1.day-1). The phyllochron varied among clones only in the rainy season, when the value was 4.6 days.leaf-1 for the green clone and 8.4 days.leaf-1 for the purple one; both of these values are below the mean value observed during the drought (21,6 days.leaf-1). The residual heights did not affect, in an isolated way, any of the variables. The clones are well adapted to grazing, presenting low stem elongation rates. The interval between defoliations should consider the scope of light interception between 90 and 95%. The green clone, with a greater flow of biomass, requires handling with shorter defoliation intervals.

A face sul da região da Serra Negra está localizada entre os municípios de Rio Preto e Santa Bárbara do Monte Verde no estado de Minas Gerais. A região é marcada por um relevo montanhoso e vegetação formada por Floresta Ombrófila Densa. Os estudos foram conduzidos em altitudes entre 800 a 1.200 m onde os morcegos foram capturados em redes de neblina instaladas principalmente no interior e borda de mata. Durante um período de 14 meses e um esforço de captura de 22.140 m²r.h, foram capturados 246 morcegos pertencentes a 15 espécies, 13 gêneros e 2 famílias: Phyllostomidae (12 espécies) e Vespertilionidae (3 espécies). A espécie Sturnira lilium foi a mais freqüente com 33,7% das capturas, seguida por Carollia perspicillata com 21,1%, Desmodus rotundus com 19,1% e Artibeus lituratus com 16,3%. Em análise de agrupamento realizada entre a fauna de Chiroptera da face sul da Serra Negra com outros levantamentos, a área de estudo se mostrou similar a fauna de morcegos do Parque Nacional da Serra dos Órgãos.

The southern slope of the Serra Negra region is located between the Rio Preto and Santa Bárbara do Monte Verde municipalities, state of Minas Gerais. The region is a mountain chain inserted in the Atlantic rainforest domain. The studies were conducted in a rainforest at elevations of 800-1,200 m, where bats were captured in mist-nets installed at the ground level in the interior and edges of the forest. After 14 monthly samplings and total capture effort of 22,140 m²r.h, 246 bats belonging to Phyllostomidae (12 species) and Vespertilionidae (3 species) were captured. Sturnira lilium was the most frequently captured species, followed by Carollia perspicillata, Desmodus rotundus and Artibeus lituratus (33.7, 21.1, 19.1 and 16,3% of the captures, respectively). Cluster Analysis including Serra Negra and bat checklists of other patches of Atlantic forest revealed that Serra Negra is more similar to the Serra dos Órgãos, State of Rio de Janeiro, southeastern Brazil, than the other areas.