Populational Dynamics
Mostrando 1-12 de 21 artigos, teses e dissertações.
-
1. Orchid bees (Hymenoptera, Apidae, Euglossini) are seasonal in Seasonal Semideciduous Forest fragments, southern Brazil
Abstract Seasonal fluctuations in the abundance of orchid bees have already been reported. The variations in population dynamics may be expected to occur in more predictable and pronounced manners in environments with a clear distinction between rainy and dry seasons, where climatic variables are regarded to be good predictors of populational patterns. The m
Pap. Avulsos Zool.. Publicado em: 25/03/2019
-
2. Patches Approach to Investigate the Populational Dynamics in Dengue
RESUMO Em áreas onde os recursos estão localizados em locais discretos, a dispersão humana é mais convenientemente modelada considerando a população dividida em regiões discretas (patches). Neste trabalho, desenvolvemos um modelo espaço discreto geral para analisar a propagação da doença da dengue. No processo de modelagem matemática, levamos em
TEMA (São Carlos). Publicado em: 2017-04
-
3. Ecologia populacional de sete espécies arbóreas em áreas de exploração seletiva de madeira de impacto reduzido na Amazônia Central / Populational ecology of seven tree species in a selective logging area in Central Amazon
Exploração de madeira realizada sob manejo de impacto reduzido tem sido considerada uma forma de auxiliar a refrear o desmatamento na Amazônia. No entanto, poucos dados estão disponíveis para verificar o impacto dessa atividade sobre a floresta, e assim, avaliar o potencial das áreas sob manejo para conservação de habitats. Nessa tese investigamos o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
-
4. DinÃmica Geoambiental do Sistema HÃdrico MaceiÃ/Papicu / Dynamic Geoenvironmental System Hydride Maceià / Papicu
This research aims to analyse the geo-environmental features of the MaceiÃ/ Papicu Hydrical System relating the dynamic in the natural landscape to the human aspects. The survey is based on the process of degradation from occupation considering the changes and their consequences to the environment. By means of the visual interpretation of the AUMEF 1978 air
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2010
-
5. Dinâmica populacional e efeitos de variáveis ambientais sobre a fauna de pequenos mamíferos em um fragmento de floresta com araucária no sul do Brasil
Natural populations of small rodents fluctuate continually over time and the population dynamics of any living organism are shaped by both intrinsic and extrinsic factors. Small mammals populations can show a continuum dynamic activity, ranging from stability to regular cycles of variable amplitude. The species dynamics is also known to be influenced by the
Publicado em: 2010
-
6. Genetic and morphological patterns in populations of Culex quinquefasciatus (Diptera:Culicidade). / Padrões genético-morfológicos em populações de Culex quinquefasciatus (Diptera: Culicidae).
Culex quinquefasciatus is a pantropical synanthropic species of great medical interest. Several attempts to control this species have fail due to its microvelution of resistance to insecticides. In order to detect populational variation indicative of microevolution, two populational samples from State of São Paulo were compared: São Paulo municipality (Par
Publicado em: 2009
-
7. Estrutura populacional e variabilidade genética de tartaruga verde (Chelonia mydas) da região de Cananéia, São Paulo / Populational structure and genetic variability of green sea turtle (Chelonia mydas) from Cananéia, São Paulo
The green turtle, Chelonia mydas, is an endangered marine reptile that nests and forages along the Brazilian coast and oceanic islands, among other tropical areas. Due to the highly migratory and oceanic nature of these animals, ecological studies are many times difficult to carry out, and many questions about their biology remain. Molecular genetic analysis
Publicado em: 2009
-
8. Variação sazonal de Triozoida limbata (Hemiptera: Triozidae) e inimigos naturais em goiabeira / Seasonal variation of Triozoida limbata (Hemiptera: Triozidae) and natural enemies in guava plants
Triozoida limbata is one of the most important pests of guava plants. Their nymphs attack young leaves and buds, causing serious damages. Basic studies of population dynamics and determination of factors that regulate the population growth are necessary for the development of integrated programs management of this pest. Agents of natural biological control a
Publicado em: 2008
-
9. Dynamics and growth of the arboreous stratus in the Atlantic Forest areas, in the Vale do Rio Doce, MG, region / Dinâmica e crescimento do estrato arbóreo em áreas de Mata Atlântica, na região do Vale do Rio Doce, MG
The objective of the present work was to study the dynamics of the floristic composition and of the horizontal and vertical structures, the basal area and the volumetric growth and the annual periodic increment of three reserve areas of the Atlantic Forest pertaining to the CENIBRA S.A., locatted in the municipalities of Caratinga, Coronel Fabriciano and Gua
Publicado em: 2008
-
10. SimulaÃÃo da DinÃmica Populacional do PulgÃo Aphis gossypii Glover e sua interaÃÃo com o parasitÃide Lysiphlebus testaceipes. / Aphis gossyppi Glover, 1877 populational dynamics simulation and its interaction with the parasitoid Lysiphlebus testaceipes (Cresson, 1880)
Recently, Giarola et al. (2006) have simulated the populational dynamics of Aphis gossypii Glover, 1877 in different temperatures and chrysanthemum cultivares (Dendranthema grandiflora Tzvelev), by using the Penna Model (Penna, 1995) and experimental data from Soglia et al. (2002, 2003). Though the results are satisfactory, the post reproductive period, obse
Publicado em: 2007
-
11. Analise do sucesso e fracasso organizacional a partir da ecologia organizacional: estudo realizado junto as MPMEs do setor têxtil de Jaraguá do Sul
In nowadays economical conjuncture, characterized by the appearance and dying dynamics of some business areas, has led a search for theories that could explain such phenomena. The organizational studies come, mainly, from the perspective of the institutional analyses and from the strategy to explain the relationship of the companies in its environment, justi
Publicado em: 2007
-
12. Processos de partÃculas sem colisÃes
We consider a class of particle processes with discrete time and a finite number of types of particles, which we call Processes Without Collisions or PWC for short. At every time step, any particle may die or transform itself into one or several particles of any types with certain probabilities, but there are no collisions, that is, every transformation appl
Publicado em: 2007