Navegando por Assunto "Relação inseto-planta"

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Efeito do estado fisiológico de mudas de Pinus taeda (L.) no desenvolvimento e sobrevivência da mariposa cigana, Lymanthria dispar (L.) (Lepidoptera: Lymanthriidae)
(1997) Carrano-Moreira, Alberto Fábio
Foi avaliado o desempenho de lagartas de Mariposa Cigana, Lymantria dispar (L.), transferidas de folhas de carvalho (Quercus nigra L.) no segundo, terceiro e quarto estádios para acículas de Pinus taede (L.), cujas plantas tinham sido submetidas a dois tratamentos culturais: 1. regime de irrigação diária com fertilização periódica (CI/CF) e 2. mudas sob regime de irrigação mínima e sem fertilização (SI/SF). As variáveis mensuradas foram: porcentagem media de sobrevivência e peso médio das pupas. No segundo estádio larval só houve sobrevivência nas acículas do tratamento CI/CF. As lagartas do terceiro e quarto estádios no tratamento CI/CF mostraram alta porcentagem de sobrevivência, porem desenvolveram pupas mais leves. As lagartas do terceiro estádio no tratamento CI/CF apresentaram uma sobrevivência significativamente menor, porem se desenvolveram em pupas mais pesadas. No quarto estádio a sobrevivência media não diferiu entre os tratamentos.
Estudos sistemáticos e ecológicos dos afídeos de praças públicas do Recife, PE
(1984) Leal, Maria do Carmo Arcanjo; Oliveira, Maria Helena Costa Cruz de
Em continuidade a programa de pesquisa sobre afídeos, foi realizado um estudo sobre espécies de afídeos em plantas ornamentais e sua freqüência, ocorrência em dezesseis praças publicas do Recife, Estado de Pernambuco, durante quatro anos. Vinte e três espécies de plantas foram pesquisadas e quatorze espécies de afídeos observadas, sendo Aphis spiraecola Patch e Aphis gossypii Glover as mais freqüentes.
Fatores que influenciam populações de afídeos em Citrus reticulada B., em Pernambuco
(LEAL, Maria do Carmo A.; OLIVEIRA, Maria Helena Costa C. de. Fatores que influenciam populações de afídeos em Citrus reticulada B., em Pernambuco. Cadernos Ômega. Série Biologia, Recife, v.1, n.1, p. 37-58, 1984., 1984) Leal, Maria do Carmo Arcanjo; Oliveira, Maria Helena Costa Cruz de
São apresentadas algumas informações sobre as espécies de afídeos encontrados em Citrus reticulata B., época de ocorrência e fatores que influenciam suas populações. com especial referência às populações dos seus inimigos naturais. Estes dados foram obtidos de setembro de 1974 a outubro de 1976 em 23 laranjeiras, através de observações e amostragens realizadas semanalmente. Das 32 espécies de inimigos naturais coletadas. entre os Coccinellidae predominaram: Harpasus pallidilabris, Azya nana e Chilosorus nigritus; e entre os Syrphidae: Ocyptamus gastrostactus e 0. dimidiatus. O declino das populações dos afídeos das laranjeiras es.h diretamente relacionado com o estagio de desenvolvimento da planta hospedeira, com os inimigos naturais e fatores climáticos nesta ordem de atuação.
Herbáceas e sua importância na manutenção de polinizadores
(2022-10-03) Lima, Maria Eduarda Carvalho de; Leite, Ana Virgínia de Lima; Camurça, Letícia Menezes; http://lattes.cnpq.br/8840913329269415; http://lattes.cnpq.br/0648909336920690; http://lattes.cnpq.br/2056583054812490
The recurring environmental impacts of recent years contribute to the loss of fauna and flora exponentially. The restoration of an ecosystem is initially done in small steps, following a natural evolutionary order. An example is succession, in which herbaceous plants initiate the life process in these ecosystems and promote stability, opening space for animals to return and forest recovery/regeneration. The present work aimed to determine the importance of herbaceous plants as maintenance agents for pollinator species. Searches and analyzes of articles published in the last 20 years were carried out, available on Google Scholar, Scielo, Periodicals/CAPES and Web of Science platforms, from July 2020 to July 2022. In all, 795 species from 98 botanical families were studied and showed their richness mainly in South America with the families Asteraceae and Fabaceae, frequently visited by Hymenoptera and Lepidoptera of nectarivorous majority, distributed by 19 biomes, with the Atlantic forest contributing with the greatest diversity. It can be said, after the survey carried out, that herbaceous plants are concentrated in South America, predominantly in Brazil, mainly in the Atlantic forest, the species studied have generalist characteristics and were mainly nectariferous and melittophilous.
Investigação da relação entre florivoria e síndromes de polinização
(2022-10-03) Araújo, Marina da Silva Pereira; Bezerra, Elisangela Lucia de Santana; Costa, Karine de Matos; http://lattes.cnpq.br/9888372717864521; http://lattes.cnpq.br/4360870964749577
Plants and pollinators maintain a mutualistic relationship necessary for plant reproduction and for the pollinator to collect the floral resource it needs. This relationship led to the diversification of plants and pollinators through coevolution, where one evolved in response to the other. However, there are antagonistic interactions that can change the visual display of flowers, making them less attractive to pollinators. Thus, florivory consists of damage to floral whorls (reproductive or sterile) caused by animals, and can be considered one of the selective pressures on plant reproduction. The objective of this study is to analyze the occurrence of florivory, identifying the possible floral attributes associated with this plant-animal interaction. The species were randomly collected on the UFRPE Campus and data from species from the Caatinga and from species belonging to the Dois Irmãos State Park (PEDI) were also used, and the floral attributes were recorded: color, shape, size, presence or absence of odor, symmetry, offered resource and pollination unit, classifying them according to the syndrome. The identification of the collected species was made through consultation of databases and specialized literature. Information on flowering species found in the literature was added to the in loco observations in the analyses. In this study, 50 species were considered, covering 23 families, with emphasis on Fabaceae, Asteraceae and Rubiaceae. There was a higher percentage of species with white and yellow flowers (both with 30%), rotated and hypocrateriform morphology (32% and 20%), very large size (38%), presence of odor (60%), actinomorphic symmetry ( 80%), nectar as a resource (76%) and flowers arranged in inflorescences (82%). These attributes are related to the greater representation of the melitophilia syndrome (64%). The set of floral attributes related to melitophily are associated with the greatest attraction of florivores in this study. Floral attributes such as open and easily accessible morphology, nectar as a resource, presence of odor, larger size and arrangement of flowers in inflorescences may be making flowers attractive to florivores.
Ocorrência da cochonilha escama vermelha (Aonidiella aurantii Mask., 1878) (Homoptera: Diaspididae) em mamoeiro no Estado de Pernambuco
(2001) Barros, Reginaldo; Arruda Filho, Geraldo Pereira de; Arruda, Geraldo Pereira de
Foi relatada a ocorrência da cochonilha escama vermelha Aonidiella aurantii Mask., (1878) em Moreno, Estado de Pernambuco. Essa cochonilha estava causando danos em frutos e caules de mamão .
O que faz a polinização ser “o menor dos mundos”? Uma análise a partir de estudos de caso
(2018) Araújo, Karoline Couto; Bezerra, Elisangela Lucia de Santana; http://lattes.cnpq.br/4360870964749577; http://lattes.cnpq.br/7885361436753765
Plant-pollinator interaction networks express a typical structure, marked by strong connectivity, degree of dependence and its size. Modularity may also be characterized in this system, especially when it comes to specialized syndromes, involving partners with certain more specific specificities and abilities. Particularly noteworthy are poricidal flowers and vibrating bees, oil flowers and bees collecting floral oils, resin flowers and Euglossini, tubular flowers and their related pollinators, ranging from long-tailed bees or specific hummingbirds to bats and sphingids.In this way, we aim to present a brief analysis to try to portray the biological system that involves the pollinator network in a fragmented Atlantic Forest scenario. Data collection was done through a bibliographic survey based on case studies developed in the PEDI. The works were collected in the database Pergamum and Google Scholar, using theses, dissertations and scientific articles. The keywords used in the search were pollination, reproductive biology and floral biology (pollination, reproductive biology and floral biology).The following information was extracted from the works for the construction of the network: I – name of plant species, II- name of the pollinators identified in the interactions. Then, the binary matrix was applied to Program R for the creation of the network of interaction in graph form. The size of the net found in the PEDI was equal to 60 (49 species of pollinators, being bees, flies and hummingbird and 11 species of plants). The bipartite graph presented heterogeneous connectivity, most interactions were simple, where many species interacted with few partners. From the perspective of pollinators, only Phaethornis ruber made generalist interactions (4). Among the plants, the Byrsonima sericea species presented the most connections (17). The present work concluded that the interaction network presented characteristics that confirm the expected patterns for pollination networks, especially for specialized syndromes.