Results 31 to 40 of about 68 (67)
The authors demonstrate how the effects of herbivory on a key plant trait can cascade to shape the interactions between individual plants and their flower visitors and how the indirect effects between herbivores and pollinators can modulate the structure of interaction networks in terrestrial ecosystems.
Luiz Rezende +3 more
wiley +1 more source
Impactos das mudanças de cobertura vegetal nos processos de superfície na região semiárida do Brasil
A cobertura vegetal da superfície continental tem sido consideravelmente alterada pelas atividades humanas, principalmente através da conversão em grande escala da vegetação natural por áreas de cultivos e pastagens.
Ana Paula Martins do Amaral Cunha +2 more
doaj +1 more source
Invasive plant species might benefit more from climate change, though evidence for that is not clear. Here, we show that the effects of a low‐temperature extreme weather event can result in a dramatic reduction in both vegetative and reproductive growth of invasive populations of Gunnera tinctoria (giant rhubarb) in the west of Ireland.
Maurício Cruz Mantoani +2 more
wiley +1 more source
O objetivo deste estudo foi verificar o ciclo reprodutivo de Emmotum nitens através de suas fenofases em um Cerradão Distrófico da Embrapa Cerrados, Planaltina – DF, procurando relacionar a frequência das ocorrências fenológicas às condições climáticas ...
Marcus Vinicius Prado Alves +1 more
doaj
O presente estudo foi realizado em 40 parcelas de área fixa pertencentes a três estágios sucessionais, denominados: Capoeirão, Floresta Secundária e Floresta Madura, em uma Floresta Estacional Decidual no município de Santa Tereza, RS.
Cáren Andreis +6 more
doaj +1 more source
Bornean tropical forests recovering from logging at risk of regeneration failure
The study investigates the impact of active restoration, such as enrichment planting, on the regeneration of logged forests in North Borneo. It found that while such interventions increase initial seedling production in logged forests, this is followed by higher seedling mortality and species diversity or evenness are not enhanced compared to natural ...
David C. Bartholomew +11 more
wiley +1 more source
Resumo Nas últimas décadas houve mudança no sistema de colheita e manejo da palhada em canaviais de todo o Brasil, visando atender a legislação vigente e reduzir custos. A deposição de resíduos culturais sobre o solo, contudo, modifica as características
Thieres George Freire da Silva +6 more
doaj +1 more source
The aim of this study was to model light interception and distribution in the mixed canopy of Common cocklebur (Xanthium stramarium) with corn. An experiment was conducted in factorial arrangement on the basis of randomized complete blocks design with ...
F. Vazin +4 more
doaj +1 more source
The objective of this study was to simulate the impact of elevated temperature scenarios on leaf development of potato in Santa Maria, RS, Brazil. Leaf appearance was estimated using a multiplicative model that has a non-linear temperature response ...
Nereu A. Streck +3 more
doaj +1 more source
O trabalho apresenta a fenologia de Simarouba amara Aubl., espécie de Floresta Tropical Úmida de Terra-Firme, na Reserva Florestal Adolpho Ducke (RFAD), Manaus-Am., Brasil.
Antonio Moçambite Pinto +3 more
doaj +1 more source

