Consulta: subjectFacets:"Mutualism"
Registros recuperados: 18
Data/hora: 01/06/2024 10:53:08

Introduced herbivores and the Allee effect in animal-pollinated plants
Provedor de dados: 67
Autores: Vázquez,Diego P.
Interspecific interactions can be modulated by the community context in which they occur. In this paper I focus on plant-pollinator interactions and their modulation by introduced herbivores through changes in plant population density. I first develop a mathematical model that relates the population density of an animal-pollinated plant species with pollinator visitation frequency, pollination, reproduction and per capita growth rate. This model allows me to investigate how several pollination-related parameters -including relative abundance of the focal plant species, pollinator specialization, pollination quantity and quality and pollen limitation of reproduction- influence the relationship between per capita growth rate and population density. I then...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance; Allee effect; Density dependence; Introduced herbivores; Mutualism; Plant reproduction; Pollination; Pollinator specialization and generalization; Population dynamics.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2007000100003

Interaction of Acidithiobacillus ferrooxidans, Rhizobium phaseoli and Rhodotorula sp. in bioleaching process based on Lotka-Volterra model
Provedor de dados: 69
Autores: Zheng,Xuecheng; Li,Dongwei.
Background: Nowadays, leaching-ore bacteria, especially Acidithiobacillus ferrooxidans is widely used to retrieve heavy metals, many researches reflected that extra adding microorganism could promote bioleaching efficiency by different mechanisms, but few of them discussed the interaction between microorganisms and based on growth model. This study aimed to provide theoretical support for the collaborative bioleaching of multiple microorganisms by using the Lotka-Volterra (L-V) model. Results: This study investigated the interaction of Acidithiobacillus ferrooxidans, Rhizobium phaseoli,and Rhodotorula sp. Results showed that the individual growth of the three microorganisms fit the logistic curves. The environmental capacities of A. ferrooxidans, R....
Tipo: Journal article
Palavras-chave: Cell concentration; Collaboration; Commensalism; Mutualism.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000400013

Uma espécie nova de Schwarzula da Amazônia (Hymenoptera, Apidae, Meliponini)
Provedor de dados: 76
Autores: Camargo,João M. F.; Pedro,Silvia R. M.
Schwarzula coccidophila sp. nov., a tiny Amazonian stingless bee, that attends scale insects (Cryptostigma Ferris, 1922, Coccidae) in its nest, is described. It is distinguished from Schwarzula timida (Silvestri, 1902), the only other species of the genus, mainly by the malar area longer than diameter of 3rd flagellomere, and the denser plumose pilosity. Additional records of S. timida is presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical; Schwarzula; Taxonomy; Mutualism; Coccidae.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000300011

Interação insetos-sementes: o mutualismo é possível.
Provedor de dados: 14
Autores: TEIXEIRA, C. A. D.; SOUZA, O. de.
Nesta publicação encontram-se reunidas informações sobre insetos e sementes de Parkia multijuga, Coffea canephora e Gossypium thurberi, para produzir um quadro comparativo da interação entre esses grupos de espécies. Argumentou-se que, no período reprodutivo das plantas, a cooperação entre estes organismos pode ir além da polinização. Foi proposto que os insetos podem ser elementos chave na estratégia reprodutiva das plantas, contribuindo decisivamente para o sucesso da germinação e estabelecimento de novas plântulas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Inetração inseto-semente; Mutualismo; Besouro de folha; Acanthoscelides hopkinsi.; Pinho Cuiabano; Parkia Multijuga.; Plant-insect relations.; Mutualism.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/710604

How chemical compounds affect fruit bats' plant interactions.
Provedor de dados: 14
Autores: PAROLIN, L. C.; MIKICH, S. B.; HANSEL, F. A.; BIANCONI, G. V.
Fruit bats are known to be able to discriminate, select, and track the essential oils of their preferred fruits. A few years ago, our research group hypothesized, experimented, and confirmed that these bats can be attracted with essential oils only – concentrated volatile aromas – of their preferred fruits both in forested and open areas. These findings led to the proposal of a restoration tool that uses essential oils of chiropterochoric fruits (fruits eaten by bats) to attract seed-dispersing bats to degraded areas with the objective to increase seed arrival and germination.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Olfaction; Morcego; Óleo Essencial; Chiroptera; Essential oils; Mutualism.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1116136

Coastal phytoplankton community dynamics and coexistence driven by intragroup density-dependence, light and hydrodynamics
Provedor de dados: 5
Autores: Barraquand, F.; Picoche, C.; Maurer, Daniele; Carassou, L.; Auby, Isabelle.
Phytoplanktonic communities maintain a high diversity in a seemingly homogeneous environment, competing for the same set of resources. Many theories have been proposed to explain this coexistence despite likely competition, such as contrasted responses to temporal environmental variation. However, theory has developed at a faster pace than empirical evaluation using field data, which requires inferring drivers of community dynamics from observational time series. Here, we combine autoregressive models with a data set spanning more than 20 years of phytoplankton counts every two weeks, together with nutrients and physical variables. By comparing models dominated by nutrients or physical variables (hydrodynamics and climate), we first explore which abiotic...
Tipo: Text
Palavras-chave: Competition; Diatoms; Dinoflagellates; Hydrodynamics; Interactions; MAR; Mutualism; Network; Population dynamics; Seasonality; Time series.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00461/57257/59285.pdf

Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca : Caenogastropoda : Siliquariidae)
Provedor de dados: 5
Autores: Bieler, R.
Siliquariid Tenagodus (synonym: Siliquaria) snails are obligatory sponge commensals, with uncoiling and laterally slitted shells embedded inside Demospongiae hosts, and shell apertures facing the outside allowing for respiratory and gill-filter-feeding activities. Live-collected animals observed in situ within hosts provide the first detailed functional morphological study of the group, and form the basis for systematic revision of the western Atlantic members of type genus Tenagodus (Siliquariidae, synonym: Tenagodidae). Three species are recognized. Overall anatomical features of wide-ranging Atlantic T. modestus (Dall, 1881) and T. squamatus (de Blainville, 1827) [ = T. anguillae Morch, 18611 are similar to those previously described for New Zealand...
Tipo: Text
Palavras-chave: Anatomy; Cerithioidea; Commensalism; Gastropoda; Morphology; Mutualism; Porifera; Sessility; Systematics; Taxonomy.
Ano: 2004
URL: https://archimer.ifremer.fr/doc/00226/33724/32136.pdf

New observations on scleractinian corals from Indonesia: 2. Sipunculan-associated species belonging to the genera Heterocyathus and Heteropsammia
Provedor de dados: 16
Autores: Hoeksema, B.W.; Best, M.B.
Three Indonesian species of Heterocyathus and two of Heteropsammia are briefly diagnosed. Remarks are given on their synonymy, phenotypic variation, and ecology. All five species are found on soft substrata in the proximity of coral reefs and live in association with a sipunculan worm. This interspecific assocation is discussed with regard to whether it is mutualistic or parasitic.
Tipo: Article / Letter to the editor
Palavras-chave: Scleractinia; Free-living reef corals; Mutualism; Parasitism; Sipunculan worm; Indonesia; 42.72.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317921

Trophobiosis Between Formicidae and Hemiptera (Sternorrhyncha and Auchenorrhyncha): an Overview
Provedor de dados: 82
Autores: DELABIE,JACQUES H.C.
In this paper, the mutualistic relationship known as trophobiosis, which occurs convergently between ants and several groups of Hemiptera Sternorrhyncha and Auchenorrhyncha (formerly 'Homoptera') is reviewed. The main characteristics of 'Homoptera' and Formicidae which favor trophobiotic interactions, such as honeydew excretion by sap-sucking insects, ant attendance and physiological needs of both insects groups, are discussed. Aspects of the convergent evolution are presented. The most archaic system is not trophobiotic per se, foragers collect the honeydew casually expelled on the foliage by individuals or groups of non-associated 'Homoptera'. The commonest trophobiotic relationships are facultative; therefore, this form of mutualism is extremely...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Insect/insect relationships; Plant/insect relationships; Mutualism; Coevolution.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000400001

New occurrence of non-pollinating fig wasps (Hymenoptera: Chalcidoidea) in Ficus microcarpa in Brazil
Provedor de dados: 82
Autores: Farache,Fernando H A; Ó,Vanessa T do; Pereira,Rodrigo A S.
Ficus microcarpa is an Asian fig tree that is ornamentally cultivated. The specific pollinator, Eupristina verticillata Waterston, and the non-pollinators Walkerella microcarpae Bouček and Philotrypesis emeryi Grandi, have been reported associated to F. microcarpa in Brazil. In here we report for the first time the occurrence of Odontofroggatia ishii Wiebes and Philotrypesis taiwanensis Chen et al in F. microcarpa in Brazil. Our results suggest that P. taiwanensis and O. ishii represent a recent influx of these wasps into Brazil. Considering that ~20 fig wasp species are associated with F. microcarpa in its native area, novel occurrences can be reported in the future in Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fig wasp; Moraceae; Mutualism; Plant-insect interaction; Pteromalidae.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000500020

The outcomes of an ant-treehopper association on Solanum lycocarpum St. Hill: increased membracid fecundity and reduced damage by chewing herbivores
Provedor de dados: 82
Autores: Moreira,Vanessa S.S.; Del-Claro,Kleber.
Interactions between ants and hemipterans (Auchenorryncha e Sternorryncha) are important to understand the impact of multitrophic relationships on arthropod diversity on vegetation. The present field study experimentally investigates the outcomes of a multispecies interaction involving four components: ants, hemipteran trophobionts (Enchenopa brasiliensis Strümpel, chewing herbivores, and host plant (Solanum lycocarpum St. Hill). The occurrence of temporal variation in the outcomes of the relationships was also investigated. Results showed that ants were benefited by a rich food source predictable in time and space, while membracids survived better under ant attendance. Ant tending also had a positive impact on treehopper fecundity. Presence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mutualism; Multitrophic interaction; Ant-Hemiptera association; Solanaceae; Membracidae.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000600002

Coordinated hunting behaviors of mixed-species groups of piscivores and associated species at Isla del Coco National Park (Eastern Tropical Pacific)
Provedor de dados: 83
Autores: Auster,Peter J.; Cortés,Jorge; Alvarado,Juan José; Beita-Jiménez,Andrés.
ABSTRACT Studies of mixed-species groups of animals can reveal emergent complexities of collective behaviors. In this study we collected data on mixed-species hunting groups composed primarily of piscivorous fishes (species composition, abundance, behavioral interactions) and used both multivariate and network analyses to quantify pair-wise and guild level behavioral relationships. Our results indicate that such collective behaviors exhibit consistent patterns of associations (33 species with 282 pair-wise links within the observed network) with 10 dominant species accounting for 60% of pair-wise interactions. Species richness within groups varied (mean = 2.4, range 2-6 species) as did group size (mean = 8.1 individuals, range 2-80). Mixed-species groups,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Facilitation; Marine protected area; Mutualism; Network; Predation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000100204

Pollination and other biotic interactions in figs of Ficus eximia Schott (Moraceae)
Provedor de dados: 88
Autores: PEREIRA,RODRIGO AUGUSTO SANTINELO; SEMIR,JOÃO; MENEZES JR.,AYRES DE OLIVEIRA.
During the period from 1992 to 1997, interactions of several organisms and Ficus eximia figs, a monoecious species, were studied in plants located in Campinas/SP and Londrina/PR (Brazil). Ficus eximia is pollinated by a single fig wasp species, Pegoscapus sp. (Hymenoptera: Agaonidae, Agaoninae), but also visited by other 14 non-pollinating wasps (Agaonidae, Eurytomidae, Torymidae). Mites (Tarsonemidae), nematodes (Diplogasteridae) and fungi which use the body of the pollinating fig wasp to disperse themselves were also observed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant-animal interaction; Mutualism; Reproduction.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042000000200011

Nest structure and occurrence of three species of Azteca (Hymenoptera, Formicidae) in Cecropia pachystachya (Urticaceae) in non-floodable and floodable pantanal areas
Provedor de dados: 92
Autores: Vieira,Alexsandro S.; Faccenda,Odival; Antonialli-Junior,William F.; Fernandes,Wedson D.
Thirty Cecropia pachystachya trees were examined in non-floodable and floodable areas to investigate the association between C. pachystachya and Azteca ants in the Pantanal of Mato Grosso do Sul, Brazil. The species Azteca ovaticeps, Azteca isthmica, and Azteca alfari were found nesting inside domatia of C. pachystachya. A. ovaticeps was the most frequent species in the trees in the floodable area, while A. isthmica and A. alfari, in the non-floodable area. A. ovaticeps and A. isthmica maintained more entrance/exit holes in comparison to A. alfari. All Azteca species maintained entrance/exit holes in the closest domatia to the apical area of the branch, due to proximity to Müllerian and pearl bodies, suggesting that these species of Azteca were influenced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ant-Plant; Azteca; Cecropia; Dolichoderinae; Mutualism; Non-floodable and floodable area.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000300014

Pollination and seed dispersal by lizards: a review
Provedor de dados: 97
Autores: GODÍNEZ-ALVAREZ,HÉCTOR.
This paper reviews the ecological literature published during the last 15 years on pollination and seed dispersal by lizards, in order to determine the possible effects of these animals on plant reproduction. This review is only limited to these years because articles on plant-lizard interactions during this period have used more rigorous experimental approaches than those made previously. All compiled data were analyzed considering the conceptual framework provided by the quantity and quality components of pollination and seed dispersal (i.e., effectiveness), since this information is essential to have an idea of the relative contribution of animals to plant fitness. Results showed that 34 species of lizards feed on nectar and fruits of plants. While...
Tipo: Journal article
Palavras-chave: Effectiveness; Fruits; Mutualism; Nectar; Pollen.
Ano: 2004
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000300015

New record of a very specialized interaction: myrcidris epicharis Ward 1990 (Pseudomyrmecinae) and its myrmecophyte host Myrcia madida McVaugh (Myrtaceae) in Brazilian Meridional Amazon
Provedor de dados: 36
Autores: Vicente,Ricardo Eduardo; Dáttilo,Wesley; Izzo,Thiago Junqueira.
In this study we present a new record of a plant-animal interaction: the mutualistic relationship between the specialist plant-ant Myrcidris epicharis Ward, 1990 (Pseudomyrmecinae) and its myrmecophyte host Myrcia madida McVaugh (Myrtaceae). We observed more than 50 individuals of M. madida occupied by M. epicharis in islands and margins of the Juruena River, in Cotriguaçu, Mato Grosso, Brazil (Meridional Amazon). We discuss a possible distribution of this symbiotic interaction throughout all the riparian forest of the Amazon River basin and its consequence to coevolution of the system.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Ant-plant; Mutualism; Geographic distribution; Amazon River basin.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672012000400016

Ants monopolise plant resources by shelter-construction
Provedor de dados: 36
Autores: ESKILDSEN,Louise I.; LINDBERG,Annika Büchert; OLESEN,Jens M.
In Ecuadorean Amazonas, Crematogaster ants (Myrmicinae) were observed to construct shelters of debris and plant trichomes covering and hiding extrafloral nectaries of Passiflora auriculata vines. This is seen as an advanced way of excluding competing ants from a food source.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonas; Crematogaster; Extrafloral nectaries; Mutualism; Passiflora.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672001000100155

Interaction between ants and plants bearing extrafloral nectaries in cerrado vegetation
Provedor de dados: 44
Autores: Oliveira,Paulo S.; Pie,Marcio R.
Extrafloral nectaries (EFNs) are nectar-secreting glands not directly involved with pollination which may occur on virtually all above-ground plant parts of angiosperms. Recent studies revealed that such glands are widely distributed amongst the woody flora of the Brazilian cerrados. Plants bearing EFNs are visited day and night by a diverse assemblage of nectarivorous ants. In this review we present the data gathered during the past 15 years on the interaction between ants and EFN-bearing plants in cerrado vegetation. Field experiments indicate that ants visiting EFNs may prey or attack insect herbivores on the plant foliage, significantly reducing herbivore damage to leaves, buds or flowers. As a response, some herbivore species have developed an array...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Hymenoptera; Herbivory; Mutualism; Predation.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000200001