Phanerogamic flora and vegetation of Itacolomi State Park, Minas Gerais, Brazil

Messias, Maria Cristina Teixeira Braga; Sousa, Hildeberto Caldas de; Scalon, Viviane Renata; Roschel, Miriam Borba; Candido, Elisa; Fujaco, Maria Augusta Gonçalves

doi:10.1590/1676-0611-bn-2016-0236

Cited by 11 publications

(9 citation statements)

References 40 publications

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“…León (2010) found that several species of the genus Ficus (Moraceae) have high index of importance of plants values, being important for seed dispersion. However, plants of this genus were uncommon in the PEIT areas (Messias et al, 2017), not being recorded in the interactions observed in the present study.…”

Section: Discussioncontrasting

confidence: 60%

“…Precipitation is concentrated between the months of October and March, with a notorious wet season during summer and another dry season in winter (Tafuri, 2008). In the PEIT, rupestrian grasslands occupy 51% of its territory (3,846.93 ha), 40% is covered by montane Atlantic Forest (3,017.2 ha), and 9% is occupied by a 30-years abandoned eucalyptus plantation (two blocks totaling 678.87 ha), placed in an area previously occupied by the native Atlantic Forest, as long as abandoned tea plantations and human constructions (Messias et al, 2017). In this protected area, have being recorded 1,623 plant species, 251 birds, 43 mammal species, 37 amphibians and 22 reptiles, showing its high biodiversity (Governo do Estado de Minas Gerais et al, 2007;Messias et al, 2017).…”

Section: Study Areamentioning

confidence: 99%

“…Because of this problem, some areas of the Atlantic Forest were converted into protected areas, such as the Itacolomi State Park (PEIT), located in southeastern Brazil, which include both native vegetation and a 30-year abandoned eucalyptus plantation. The PEIT is considered an important historical and geological natural park in the region (Tafuri, 2008;Messias et al, 2017). Studies, such as those of Andrade (1998), Governo do Estado de Minas Gerais et al (2007) and Pereira et al (2015), highlighted the high bird diversity of the PEIT, indicating the probability of existence of a complex birdplant interaction networks.…”

Section: Introductionmentioning

confidence: 99%

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Bird-plant interaction networks in native forests and eucalyptus plantations within a protected area

2021

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Frugivory is a plant-animal mutualistic interaction carried out mostly by birds. It consists in the bird consumption of fruits with later dispersion of the plants' seeds, helping in the vegetation regeneration. Frugivory can be affected by the habitat fragmentation and introduction of exotic species, which may alter the species interaction by extinction or competitor introduction. This study aimed to compare the structure of the network of frugivorous interactions between birds and plants in native forest and eucalyptus plantation. Birds were captured by mist nets and had their feces collected. Later, the seeds were identified in laboratory. The records of fruit consumption by birds in the zoochoric plant species present in the study area were also conducted. The data collected was used to build a network of interactions and identify the most important network metrics, species, and ecological functional groups in the studied environments. The results showed that the species composition, the connectivity of the relationships, the importance of the species for the interaction networks and the number of subgroups within the networks were highly similar between the native forest and the eucalyptus plantation. This could be explained by the favorable conditions that the studied eucalyptus plantations presented, such as the lack of anthropogenic activities, well-developed understory, and the presence of native surrounding vegetation, allowing practically the same seed dispersal capacity in both types of environments.

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Section: Discussioncontrasting

confidence: 60%

Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bird-plant interaction networks in native forests and eucalyptus plantations within a protected area

2021

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“…The present study was conducted at the Engenho D'Água farm, located in São Bartolomeu district (20º15'41" S, 43º36'34" W), Ouro Preto municipality, Minas Gerais, southeastern Brazil. The study area's vegetation is classified as semideciduous seasonal forest within the Atlantic Forest domain (Messias et al 2017). The mean annual temperature varies between 14°C and 28°C, with an annual pluviometric mean of 1,552mm and two distinct seasons: a dry season from March to September and a rainy season from October to February, the climate being classified as Cwb in the Köeppen system (Pedreira & Sousa, 2011).…”

Section: Study Site Animals and Maintenancementioning

confidence: 99%

Captive-born collared peccary (Pecari tajacu, Tayassuidae) fails to discriminate between predator and non-predator models

et al. 2018

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Captive animals may lose the ability to recognize their natural predators, making conservation programs more susceptible to failure if such animals are released into the wild. Collared peccaries are American tayassuids that are vulnerable to local extinction in certain areas, and conservation programs are being conducted. Captive-born peccaries are intended for release into the wild in Minas Gerais state, southeastern Brazil. In this study, we tested the ability of two groups of captive-born collared peccaries to recognize their predators and if they were habituated to humans. Recognition tests were performed using models of predators (canids and felids) and non-predators animals, as well as control objects, such as a plastic chair; a human was also presented to the peccaries, and tested as a separate stimulus. Anti-predator defensive responses such as fleeing and threatening displays were not observed in response to predator models. Predator detection behaviors both from visual and olfactory cues were displayed, although they were not specifically targeted at predator models. These results indicate that collared peccaries were unable to recognize model predators. Habituation effects, particularly on antipredator behaviors, were observed both with a one-hour model presentation and across testing days. Behavioral responses to humans did not differ from those to other models. Thus, if these animals were to be released into the wild, they should undergo anti-predator training sessions to enhance their chances of survival.

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“…PEIT is a park at a high altitude (900 to 1772 m above sea level), located in the Ouro Preto and Mariana municipalities (20°22′30″–20°30′00″ S and 43°32′30″–43°22′30″ W) 72 , at the southern portion of the Espinhaço Mountain 73 , near the south border of the São Francisco Craton 74 in Minas Gerais State, Southeastern Brazil. It occupies an area of approximately 70 km 2 .…”

Section: Methodsmentioning

confidence: 99%

Metal bioaccumulation alleviates the negative effects of herbivory on plant growth

Dueli

DeSouza

Ribeiro

2021

Sci Rep

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Metalliferous soils can selectively shape plant species’ physiology towards tolerance of high metal concentrations that are usually toxic to organisms. Some adapted plant species tolerate and accumulate metal in their tissues. These metals can serve as an elemental defence but can also decrease growth. Our investigation explored the capacity of natural metal accumulation in a tropical tree species, Eremanthus erythropappus (Asteraceae) and the effects of such bioaccumulation on plant responses to herbivory. Seedlings of E. erythropappus were grown in a glasshouse on soils that represented a metal concentration gradient (Al, Cu, Fe, Mn and Zn), and then the exposed plants were fed to the herbivores in a natural habitat. The effect of herbivory on plant growth was significantly mediated by foliar metal ion concentrations. The results suggest that herbivory effects on these plants change from negative to positive depending on soil metal concentration. Hence, these results provide quantitative evidence for a previously unsuspected interaction between herbivory and metal bioaccumulation on plant growth.

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Phanerogamic flora and vegetation of Itacolomi State Park, Minas Gerais, Brazil

Cited by 11 publications

References 40 publications

Bird-plant interaction networks in native forests and eucalyptus plantations within a protected area

Bird-plant interaction networks in native forests and eucalyptus plantations within a protected area

Captive-born collared peccary (Pecari tajacu, Tayassuidae) fails to discriminate between predator and non-predator models

Metal bioaccumulation alleviates the negative effects of herbivory on plant growth

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