Rodrigo Lemes Martins

Floral resource partitioning by ants and bees in a jambolan Syzygium jambolanum (Myrtaceae) agroforestry system in Brazilian Meridional Amazon

The fruit production of flowering plants critically depends on the pollination services provided by animals that compete for flower resources. The output of competitive interactions between ants and bees for inflorescences of jambolan Syzygium jambolanum (Myrtaceae) in an agroforestry system in Brazilian Meridional Amazonian are an interesting system of investigation due the possibility to control variables experimentally. In 20 S. jambolanum individuals we performed 300 treatments in different inflorescences of two strata (upper and lower) as follows: (1) ants exclusion, (2) bees exclusion, and (3) control group where ants and bees could access the inflorescences. There was no difference in the number of inflorescences, volume of nectar and sugar concentration between the strata. Also the visitors considered are distributed equally in the tree’s stratum. When bees were prevented from access the inflorescences, ants dominated more inflorescences only in the lower stratum. On the contrary, when ants were excluded, bees visited more inflorescences only in the upper stratum. We conclude that ants prevent the access to bees and vice versa as the result of different ability of resource utilization and foraging strategies. Thus, preventing the access of ants to the floral nectar could increase the level of nectar available to pollinators of S. jambolanum, thereby increasing productivity and reducing economic losses.

Polinização de Caryocar villosum (Aubl.) Pers. (Caryocaraceae) uma árvore emergente da Amazônia Central

Caryocar villosum is a common emergent tree of Central Amazonia. It is an important timber tree and source of fruit for men and animals. We study the floral biology, pollination, and breeding system of C. villosum. Data was collected from trees in an urban area, forest fragments and a continuous forest. Floral characteristics and plant-pollinator interactions were described and controlled hand-pollinations were undertaken to study breeding system. The flowers of C. villosum are brush-shaped, yellow and exposed above the canopy in terminal inflorescences. They have nocturnal anthesis, last for one nigth only and produce ca. 750 mL of nectar per nigth, which are typical traits associated with bat pollination. The especies was visited by Phyllostomus discolor and glossophaginae bats, as well as arboreal marsupials and Sphingidae moths. Hand pollinations revealed that C. villosum is self-compatible, but the number of fruits formed from cross-pollination was higher than that from self-pollination.

Biologia reprodutiva de Jacquinia armillaris (Primulaceae): uma espécie endêmica das restingas Brasileiras

Jacquinia armillaris occurs in the coastal zone of Northeast and Southeast Brazil in greatly reworked estuarine landscapes. For a better understanding of the ecology of J. armillaris in its natural habitat, this study assessed the reproductive biology of this species in the restinga of Parque Estadual Paulo Cesar Vinha, Espirito Santo, Brazil. According to the data on flowering, floral morphology, stigmatic receptivity, reproductive system, pollen viability, and behavior of floral visitors, Jacquinia armillaris showed characteristics of cantarophily syndrome and is visited by two Coleopteras: Carpophilus sp. (Nitidulidae) and Horistonotus sp. (Elateridae). The data suggest that the species is self-compatible. However, J. armillaris depends on pollination promoted by floral visitors. Absence of agamospermy and clonal growth, plus low viable production of pollen, cantharophily and common restinga rigor are discussed as responsible factors for low fruit set, consequently producing stochastic variation in seed recruitment.

Non-volant mammals from Domingos Martins municipality, state of Espírito Santo, southeastern Brazil

The goal of this study was to contribute to the knowledge of the mammals in the state of Espirito Santo, presenting a list to the Domingos Martins municipality. Regarding the mammals inventory, data obtained from field work and through digital search by species deposited in scientific collections and available on the SpeciesLink database were used. We recorded 47 non-volant mammal species, including 12 endemic in the Atlantic Forest and nine listed as threatened. Domingos Martins, despite being undersampled when compared to other mammals inventories in the state of Espirito Santo, represents 57% of the terrestrial mammals listed in the state. This shows the potential of the municipality in relation to mammal conservation, not only in the state, but also for Atlantic Forest biome.

Nurseries of the Macaé River Basin and the increasing demands for seedlings to restore degraded areas

is study assess the potential of nurseries located in the Rivers Macae and Ostras Watershed. irteen nurseries found in the watershed produce approximately 4,867,600 seedlings per year, being 95% concentrated on private nurseries. Considering the 469 identi ed species found in the nurseries, 43.28 % are native of the Atlantic Forest, of which 20% are typical of riparian forests. About 30% of the entire production consist of seeds and seedlings that come om other watersheds. Based on these data, and considering the current increasing on demands for forest seedlings, we evaluate the risk of the entrance of species and genotypes common to other regions, and the necessary actions to provide technical and logistic support to the nursery line of work.

Viveiros da Bacia do Rio Macaé e as novas demandas para a recuperação de áreas degradadas

This study assess the potential of nurseries located in the Rivers Macae and Ostras Watershed. Thirteen nurseries found in the watershed produce approximately 4,867,600 seedlings per year, being 95% concentrated on private nurseries. Considering the 469 identified species found in the nurseries, 43.28 % are native of the Atlantic Forest, of which 20% are typical of riparian forests. About 30% of the entire production consist of seeds and seedlings that come from other watersheds. Based on these data, and considering the current increasing on demands for forest seedlings, we evaluate the risk of the entrance of species and genotypes common to other regions, and the necessary actions to provide technical and logistic support to the nursery line of work.

First record of Phyllostomus elongatus (É. Geoffroy, 1810) (Mammalia: Chiroptera) for the state of Espírito Santo, southeastern Brazil

We report the occurrence of Phyllostomus elongatus in the municipality of Linhares, state of Espirito Santo. The new record fills a gap in the distribution of the species in southeastern Brazil and increases the state’s mammal list.