10 documents found, page 1 of 1
Hakea decurrens invasion increases fire hazard at the landscape scale
Gerber, Dionatan; Azevedo, João; Nereu, Mauro; Oliveira, Aline Silva de; Marchante, Elizabete; Jacobson, Tamiel Khan Baiocchi; Silva, Joaquim S.Hakea decurrens subsp. physocarpa is an invasive fire-adapted shrub of Australian origin that is quickly expanding in Portugal with potential impacts on fire behavior and fire regime. In this study we examined the effects of H. decurrens on fire hazard by assessing fire behavior indicators at the landscape scale, using a modeling and simulation approach. Six fuel models for H. decurrens were developed through f...
Invasiveness, monitoring and control of hakea sericea: a systematic review
Jacobson, Tamiel K.B.; Gerber, Dionatan; Azevedo, JoãoSolutions for ecological and economic problems posed by Hakea sericea invasions rely on scientific knowledge. We conducted a systematic review to analyze and synthesize the past and current scientific knowledge concerning H. sericea invasion processes and mechanisms, as well as monitoring and control techniques. We used ISIWeb of Science, Scopus, and CAPES Periodicals to look for publications on the ecological ...
Evaluating tree survival and modeling initial growth for Atlantic Forest restor...
Gerber, Dionatan; Bechara, Fernando Campanhã; Topanotti, Larissa Regina; Nicoletti, Marcos Felipe; Azevedo, JoãoEcological restoration has become an important complementary practice to protect natural resources and preserve biodiversity. However, native species may be used in restoration programs in ways that do not optimize their performance. This research evaluated the survival and to model the initial growth of 15 native tree species planted in “filling” and “diversity” lines in the post-planting phase of a restoratio...
Genetic variability of Araucaria angustifolia Bertol. initial growth: subsidy t...
Gerber, Dionatan; Brun, Eleandro José; Topanotti, Larissa Regina; Ferreira, Josângela de Jesus; Porrua, Douglas; Gorenstein, Maurício RomeroThe species Araucaria angustifolia Bertol. is native from Brazil, and it is now an endangered species due to the anthropic actions for several years. The objective of this study was to evaluate the genetic variability of Araucaria angustifolia based on initial growth qualitative and quantitative variables in a provenance and progeny test. Based on this performance, the genotypes with higher presence of superior...
Performance of Guazuma ulmifolia Lam. in subtropical forest restoration
Gerber, Dionatan; Topanotti, Larissa Regina; Gorenstein, Maurício Romero; Vieira, Frederico Márcio Corrêa; Stolarski, Oiliam CarlosWe evaluated the initial development of Guazuma ulmifolia Lam. in a reforestation experiment in the southwestern region of Parana State, Southern Brazil. In a 70 native tree species plantation (3x2 m spacing) data were collected biannually, up to 48 months, from 72 individuals of Guazuma ulmifolia. The species performance was evaluated regarding its survival (96%), root collar diameter (6.79 cm), total height (...
Modelação do crescimento inicial de espécies arbóreas utilizadas em restauração...
Gerber, DionatanA restauração de ecossistemas degradados representa um desafio em iniciar um processo de sucessão, principalmente quando as atividades antrópicas ocasionaram severas alterações nas características das formações florestais originais de um determinado local. O objetivo deste trabalho foi avaliar e modelar o crescimento inicial e sobrevivência de 15 espécies arbóreas nativas do Brasil em área de restauração flores...
Vegetation and seed bank of an open-scrub bush restinga formation in the southe...
Bechara, Fernando Campanhã; Salvador, Lívia Zocatelli; Ventura, Raquel Almeida; Topanotti, Larissa Regina; Gerber, Dionatan; Cruz, Izaclaudia Santana daRestingas are coastal plain ecosystems located along Eastern Brazil, corresponding to about 5 000 km. The restinga vegetation is associated with the Atlantic rainforest biome and comprises four distinct main formation zones: coastal grasslands, shrublands, open-forests and marsh zones. Especially due to coastal urbanization, this is a threatened ecosystem that, through its different shrub formations, exhibits a...
Variabilidade genética para caracteres juvenis de procedências e progênies de A...
Gerber, DionatanA Araucaria angustifolia (Bertol.) Kuntze encontra-se na lista de espécies ameaçadas de extinção, devido à grande exploração indiscriminada sofrida historicamente. Esse cenário poderá ser revertido com a realização de novas pesquisas científicas versadas no melhoramento e na silvicultura. O objetivo do trabalho foi avaliar diferenças genéticas da espécie a partir de variáveis qualitativas e quantitativas juveni...
Initial growth performance of valuable timber species in southern Brazil: Arauc...
Topanotti, Larissa Regina; Gerber, Dionatan; Stolarski, Oiliam Carlos; Trentin, Bruna Elisa; Pertille, Carla Talita; Schorr, Luís Paulo BaldisseraThe initial growth of three Brazilian native timber species in the city of Dois Vizinhos-PR, Brazil, was described - Araucaria angustifolia, Balfourodendron riedelianum, and Parapiptadenia rigida, using four non-linear mathematical models (Gompertz, Logistic, Logistic 4P, and Chapman-Richards). In the fi rst 4 years after planting, information about collar diameter (mm), total height (m), crown height (m), and ...
RECYCLABLE DOMESTIC SOLID WASTE IN FAMILY FARMS: A CASE STUDY IN SOUTHERN BRAZIL
Bechara, Fernando Campanhã; Pasquali, Luiz; Dickens, Sara Jo; Martin, Thomas Newton; O'Connor, Paula Helena Pereira; Gerber, DionatanRecycling domestic solid waste is a growing urban world demand; however, there are few studies about it in areas dominated by small farms, as in Brazil. To quantify the current composition of domestic rural waste, we monitored gravimetric composition of recyclable domestic solid waste and economic indicators in the homes of 31 family farmers in Southern Brazil for a period of 12 months. The annual expenditure a...