Fabaceae of the Rio São Francisco River sub-basin, Nova Marilândia, Mato Grosso, Brazil

Silva, Rosilene Rodrigues; Souza-Lima, Eliane Semidei de

doi:10.1590/s1676-06032013000200029

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Second, clustered species may show a suite of ecological and evolutionary traits that allow them to defy the CNDD. Poor seed dispersal favors their clustering coexistence (Peh et al, 2011), a particular characteristic shared by our focal clustered species (Bagchi et al, 2011;Silva & Souza-Lima, 2013). Seeds of clustered species are adapted to sprout in the understory near to conspecific adults and reach adulthood in the same microhabitat (Corrales et al, 2016;Peh et al, 2011;Torti, Coley, & Kursar, 2001).…”

Section: Leaf Physicochemical Defenses Are Not Different Ontogenetimentioning

confidence: 88%

“…We chose five different sites per species (60 sites in total) where clustered and non-clustered species (including adults and saplings) were most densely distributed. A list of the plant species used in this study with further taxonomic, reproductive strategies, and species information are shown in Table 1 (based on Basset, 2001;Bagchi et al, 2011;Lopes, 2007;Pérez, Hernández, Romero-Saltos, & Valencia, 2014;Queenborough, Metz, Valencia, & Wright, 2013;Silva & Souza-Lima, 2013).…”

Section: Species Selectionmentioning

confidence: 99%

“…There are particular instances when some tropical tree species can out‐compete others and become monodominant or live in clusters in a given area, for example, the lack of exogenous disturbances over long periods where competitively superior species are best adapted to particular environmental conditions (Peh, Lewis, & Lloyd, ). Or species‐specific life‐history traits such as the type of seed dispersal, which is generally over short distances (e.g., ballistic type of dispersion; Bagchi et al, ; Lopes, ; Peh et al, ; Silva & Souza‐Lima, ), may favor the establishment of large numbers of conspecifics in a given area at the expense of other species (Corrales, Mangan, Turner, & Dalling, ; Peh et al, ). A potential mechanism for survival of young trees of clustered species could be by shifts in the expression of leaf traits associated with antiherbivore defenses to avoid CNDD.…”

Section: Introductionmentioning

confidence: 99%

“…Or species-specific life-history traits such as the type of seed dispersal, which is generally over short distances (e.g., ballistic type of dispersion; Bagchi et al, 2011;Lopes, 2007;Peh et al, 2011;Silva & Souza-Lima, 2013), may favor the establishment of large numbers of conspecifics in a given area at the expense of other species (Corrales, Mangan, Turner, & Dalling, 2016;Peh et al, 2011). A potential mechanism for survival of young trees of clustered species could be by shifts in the expression of leaf traits associated with antiherbivore defenses to avoid CNDD.…”

Section: Introductionmentioning

confidence: 99%

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Physical, but not chemical, antiherbivore defense expression is related to the clustered spatial distribution of tropical trees in an Amazonian forest

Cobo-Quinche

Endara

Valencia

et al. 2019

Ecology and Evolution

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The conspecific negative density dependence hypothesis states that mortality of young trees (seedlings and saplings) is higher near conspecific adults due to mechanisms such as allelopathy, intraspecific competition, and pest facilitation, explaining why in the tropics, most of plant species tend to be rare and live dispersed. However, there are some tree species that defy this expectation and grow in large clusters of conspecific juveniles and adults. We hypothesize that conspecifics living in clusters show higher and/or more variable defensive profiles than conspecifics with dispersed distributions. We evaluated our hypothesis by assessing the expression of physical leaf traits (thickness, and the resistance to punch, tear and shear) and leaf chemical defenses for six clustered and six non‐clustered tree species in Yasuní National Park, Ecuadorian Amazon. We ask ourselves whether (a) clustered species have leaves with higher physical resistance to damage and more chemical defenses variability than non‐clustered species; (b) saplings of clustered species may show higher physical resistance to damage and higher variation on chemical leaf defenses than their conspecific adults, and (c) saplings of non‐clustered species show lower resistance to physical damage and lower variation in chemical defenses compared to conspecific adults. Overall, our study did not support any of our hypotheses. Remarkably, we found that soluble metabolites were significantly species‐specific. Our study suggests that plants physical but not chemical leaf antiherbivore defenses may be a crucial strategy for explaining survivorship of clustered species. Trees in Yasuní may also fall along a suite of tolerance/escape/defense strategies based on limitations of each species physiological constraints for survival and establishment. We conclude that other mechanisms, such as those related to indirect defenses, soil nutrient exploitation efficiency, volatile organic compounds, delayed leaf‐greening, and seed dispersal mechanisms, shall be evaluated to understand conspecific coexistence in this forest.

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Section: Leaf Physicochemical Defenses Are Not Different Ontogenetimentioning

confidence: 88%

Section: Species Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Physical, but not chemical, antiherbivore defense expression is related to the clustered spatial distribution of tropical trees in an Amazonian forest

Cobo-Quinche

Endara

Valencia

et al. 2019

Ecology and Evolution

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“…coriacea of reproductive age located mainly in the Cerrado area, from Fazenda Três Rios to Nova Marilândia (14°23'S; 57°42'W), state of Mato Grosso, Central West region of Brazil. The climate is tropical, with average temperature of 25.6°C, average annual rainfall of 1895 mm and altitude of 467m [ 36 ]. The study area is located inside Mr. Leandro Salles Nogueira property, who gently gave us permission to conduct the study there.…”

Section: Methodsmentioning

confidence: 99%

Beetle pollination and flowering rhythm of Annona coriacea Mart. (Annonaceae) in Brazilian cerrado: Behavioral features of its principal pollinators

et al. 2017

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The conservation and sustainable management of Annona coriacea requires knowledge of its floral and reproductive biology, and of its main pollinators and their life cycles. In this work, we analyzed these aspects in detail. Floral biology was assessed by observing flowers from the beginning of anthesis to senescence. The visiting hours and behavior of floral visitors in the floral chamber were recorded, as were the sites of oviposition. Excavations were undertaken around specimens of A. coriacea to determine the location of immature pollinators. Anthesis was nocturnal, starting at sunset, and lasted for 52–56 h. The flowers were bisexual, protogynous and emitted a strong scent similar to the plant´s own ripe fruit. There was pronounced synchrony among all floral events (the period and duration of stigmatic receptivity, release of odor, pollen release and drooping flowers) in different individuals, but no synchrony in the same individuals. All of the flowers monitored were visited by beetle species of the genera Cyclocephala and Arriguttia. Beetles arrived at the flowers with their bodies covered in pollen and these pollen grains were transferred to the stigmata while foraging on nutritious tissues at the base of the petals. With dehiscence of the stamens and retention within the floral chamber, the bodies of the floral visitors were again covered with pollen which they carried to newly opened flowers, thus promoting the cycle of pollination. After leaving the flowers, female beetles often excavated holes in the soil to lay eggs. Larvae were found between the leaf litter and the first layer of soil under specimens of A. coriacea. Cyclocephala beetles were the main pollinators of A. coriacea, but Arriguttia brevissima was also considered a pollinator and is the first species of this genus to be observed in Annonaceae flowers. Annona coriacea was found to be self-compatible with a low reproductive efficiency in the area studied. The results of this investigation provide ecological data that should contribute to the conservation and economic exploitation of A. coriacea.

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Phytoremediation by Eremanthus crotonoides and Inga striata decay atrazine and clomazone residues in the soil

Aguiar

Santos

Barroso

et al. 2020

International Journal of Phytoremediation

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Fabaceae of the Rio São Francisco River sub-basin, Nova Marilândia, Mato Grosso, Brazil

Cited by 5 publications

References 6 publications

Physical, but not chemical, antiherbivore defense expression is related to the clustered spatial distribution of tropical trees in an Amazonian forest

Physical, but not chemical, antiherbivore defense expression is related to the clustered spatial distribution of tropical trees in an Amazonian forest

Beetle pollination and flowering rhythm of Annona coriacea Mart. (Annonaceae) in Brazilian cerrado: Behavioral features of its principal pollinators

Phytoremediation by Eremanthus crotonoides and Inga striata decay atrazine and clomazone residues in the soil

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