scholarly journals Thrips species (Insecta: Thysanoptera) associated with flowers in a restinga fragment in northeastern Brazil

2019 ◽  
Vol 79 (1) ◽  
pp. 6-14
Author(s):  
I. M. B. Lima ◽  
M. A. Almeida-Filho ◽  
M. G. A. Lima ◽  
O. H. Bonilla ◽  
E. F. B. Lima

Abstract With the growing volume of research involving Thysanoptera in Brazil, studies were carried out to improve our understanding of the diversity of thrips in areas where the fauna has historically been neglected. Accordingly, we recorded the diversity of thrips (Insecta: Thysanoptera) associated with a restinga fragment located on the campus of the State University of Ceará (UECE), Fortaleza, Ceará state, and computed the estimated richness and diversity indices. Samples were collected from 2011 through 2013 from flowers of 86 plant species. The material was taken to the Laboratory of Insect-Plant Interaction, where thrips were screened under stereomicroscope. We collected 456 adults and 58 immatures, representing 14 species, in addition to one unidentified species of Treherniella. Microcephalothrips abdominalis was found on a large number of host plants, and Frankliniella insularis was the most common species. About two-thirds of the total richness of thrips species was associated with three plant families (Amaranthaceae, Caesalpiniaceae and Poaceae); six thrips species were each associated with only one plant species. The richness of the species collected was close to that estimated by Bootstrap and Jackknife 1 analysis. The Shannon-Wiener (H’) and Simpson (D) diversity indexes were 1,7607 and 0.7769, respectively. Although the species are common, 46 new associations between plant species and thrips were established, 13 of which are true host associations, which demonstrates the importance of coastal vegetation in maintaining populations of thrips.

2016 ◽  
Vol 5 (1) ◽  
pp. 29-45 ◽  
Author(s):  
Md Anwarul Islam ◽  
Mohammad Mahfuzur Rahman ◽  
Gazi Mosharof Hossain

The present study dealt with the exploration and documentation of the floristic composition and phyto-diversity of Sitakunda Eco-park, Chittagong, Bangladesh. A total of 412 vascular plant species under 315 genera belonging to 94 plant families have been recorded from the study area during February, 2013 to April, 2015. Out of these recorded taxa, 330 were dicotyledons, 62 were monocotyledons, 5 were gymnosperms and 15 were pteridophytes. Among those, the maximum 144 species belonged to herbs followed by 138, 75 and 55 species as trees, shrubs and climbers, respectively. The species composition among the plant families varied in plant groups. In dicotyledonous group, Euphorbiaceae appeared to be the largest family with 35 species, whereas Poaceae showed the largest family containing 30 species among monocotyledonous group. The highest values of both Shannon-Weiner and Simpson diversity indices have been observed as 3.82 and 0.98, respectively to site D during monsoon season, whereas the lowest values 3.19 and 0.95, respectively of these indices were recorded in site A during summer season.Jahangirnagar University J. Biol. Sci. 5(1): 29-45, 2016 (June)


2015 ◽  
Vol 7 (1) ◽  
pp. 45-51
Author(s):  
Oludare Oladipo AGBOOLA ◽  
Olalekan Oluwatoyosi SALAMI ◽  
Stephen OYEDEJI

Floristic composition of vegetation communities of 27 plots established along a line transect in the four major directions was investigated in the vicinity of an Iron and Steel factory in Ile-Ife, Nigeria. The aim of the study was to document the plant species composition (biodiversity) of the plant communities found within the 350 m perimeter of the facility in the study area, which will serve as a reference data, as there was no reported study for the area prior to the establishment of the factory. Plant species were identified to species level in a 10 x 10 m plot and the occurrence of each species was described in semi-quantitative terms. The vegetation is heterogeneous in nature having 31 species of tree saplings and climbers, 26 of shrubs, 15 of herbaceous plants and 4 of grasses. These 107 plant species belong to forty six (46) plant families. The dominant families included Apocynaceae and Papilionaceae (9 species), Sapindaceae (8 species), Euphorbiaceae (6 species), Asteraceae, Cucurbitaceae, Malvaceae, Poaceae, Sterculiaceae and Verbenaceae (4 species). Among the diverse species recorded, Chromolaena odorata formed a ticket in almost all the plots. Other common species included Albizia zygia, Alchornea laxiflora, Aspilia africana, Cnestis ferruginea, Combretum sp., Icacina tricantha, Ipomoea involucrata, Momordica foetida, Panicum maximum, Paullinia pinnata, Simicrata welwitschii and Vigna gracilis. The index of similarity of the plots ranged from 6.1 to 71.8%. The potential and vulnerability of the species were highlighted. Adherence to and enforcement of environmental regulations was recommended for preservation of the native species.


2012 ◽  
Vol 12 (3) ◽  
pp. 196-212 ◽  
Author(s):  
Jean Carlos Santos ◽  
Jarcilene Silva de Almeida-Cortez ◽  
Geraldo Wilson Fernandes

An inventory of gall inducing insects and their host plants in the Atlantic forest of Pernambuco, northeastern Brazil is presented. Samples of galls and their host plants were taken in six fragments of Atlantic forest. One hundred thirty-six different morphotypes of insect galls on 79 host plant species belonging to 35 plant families and 53 genera were recorded. The host plant families most attacked by galling insects were: Lecythidaceae, Myrtaceae, and Nyctaginaceae. The most frequent galling taxa were Diptera of the Cecidomyiidae family (95%), followed by Lepidoptera and Coleoptera. Galls occurred most frequently on leaves and stems, had globoid and elliptical shapes, green color and absence of trichomes on the external walls. The data indicate an intermediary richness of gall inducing insects when compared to other Brazilian Atlantic forests.


1994 ◽  
Vol 42 (3) ◽  
pp. 329 ◽  
Author(s):  
MP Zalucki ◽  
DAH Murray ◽  
PC Gregg ◽  
GP Fitt ◽  
PH Twine ◽  
...  

Extensive surveys during the winter months in inland areas of Australia have greatly extended both the range and known hosts of Australia's two pest Helicoverpa species. H. punctigera was the more common species, being collected from c. half of the sites sampled. Here a further 47 plant species in 8 families are recorded as possible host plants; the majority (all except two) are new records of native hosts, and greatly extend the existing lists. H. armigera was less common, being recorded from c. 10% of the 554 sites sampled. This species was reared from 28 species in 10 plant families. Both moth species are recorded for the first time from various native plant species, predominantly in the Asteraceae and Fabaceae. The Goodeniaceae is also added to the host list of both species. Determination of the status of host plants is discussed.


2016 ◽  
Vol 9 (1) ◽  
pp. 31-35
Author(s):  
André Luiz Santos Mascarenhas ◽  
Silvia Marisa Jesien Pinent ◽  
Juvenal Cordeiro Silva Junior

Resumo: Os tripes são insetos diminutos pertencentes à ordem Thysanoptera, sendo em sua maioria fitófagos. Poucos são os estudos sobre a fauna de tripes no Brasil, especialmente no nordeste do Brasil. Assim, este trabalho tem como objetivo realizar um inventário da tisanopterofauna associada à plantas ornamentais e cultivadas da região Sudoeste da Bahia. Os insetos foram coletados em ramos e flores de diversas espécies vegetais entre janeiro de 2006 e janeiro de 2007. Em laboratório, os tripes foram triados, montados em lâminas de microscopia e identificados. Doze espécies de tripes pertencentes a seis gêneros e duas famílias foram obtidos, sendo três novos registros para a Bahia. Foram identificadas 28 espécies de plantas hospedeiras pertencentes a 16 famílias. Os resultados obtidos nesse trabalho indicam uma rica tisanopterofauna.Thysanopterofauna Associated with Ornamental and Crop Plants in Southwest BahiaAbstract: Thrips are tiny insects belonging to the order Thysanoptera, being mostly phytophagous. There are few studies on the thrips fauna in Brazil, especially in northeastern Brazil. This work aims to conduct an inventory of Thysanopterofauna associated with ornamentals and crops of Bahia Southwest region. The insects were collected in branches and flowers of several plant species between January 2006 and January 2007. In the laboratory, the thrips were screened, mounted on microscope slides and identified. Twelve thrips species belonging to six genera and two families were obtained, and three new records for Bahia. 28 species of host plants belonging to 16 families were identified. The results of this study indicate a rich Thysanopterofauna.


2005 ◽  
Vol 22 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Nico Blüthgen ◽  
Anika Metzner ◽  
Daniel Ruf

Stick insects (Phasmida) are important herbivores in tropical ecosystems, but have been poorly investigated in their natural environment. We studied phasmids and their food plants in a tropical lowland rain forest in Borneo (Danum Valley, Sabah, Malaysia). Thirty species of phasmid were collected from 49 plant species during nocturnal surveys in the forest understorey. In most cases (35 plant species), experiments confirmed that these phasmids fed on those plant species from which they were collected. Partitioning of phasmid species among food plant species was highly significant. Two common species had a largely restricted diet: Asceles margaritatus occurred mainly on Mallotus spp. (Euphorbiaceae) and Dinophasma ruficornis on Leea indica (Leeaceae). Other phasmids fed on a broad spectrum of plant families and can be considered polyphagous (e.g. Haaniella echinata, Lonchodes hosei herberti). Feeding experiments were performed on captive phasmids using leaves from eight plant species. Asceles margaritatus showed a significantly higher consumption rate for Mallotus miquelianus leaves than for other plants, while H. echinata showed the opposite trend and the lowest consumption for M. miquelianus. However, A. margaritatus readily accepted foliage from several plant families, particularly when Mallotus was not offered at the same time. Therefore, studies on host specialisation by herbivores need to include their distribution in the natural vegetation.


2018 ◽  
Vol 8 (2) ◽  
pp. 45
Author(s):  
Chrisye Yustitia Pelokang ◽  
Roni Koneri ◽  
Deidy Katili

Abstrak Tumbuhan obat merupakan tumbuhan yang menghasilkan satu atau lebih komponen aktif yang dipercaya oleh penduduk berkhasiat obat sehingga dimanfaatkan dalam pengobatan tradisional. Penelitian ini bertujuan untuk mengidentifikasi dan mengkaji spesies tumbuhan yang digunakan sebagai obat tradisional oleh Etnis Sangihe di Kepulauan Sangihe bagian Selatan, Sulawesi Utara. Pengambilan data dilakukan melalui wawancara terstruktur  yang diajukan kepada pengobat tradisional. Hasil penelitian menunjukkan adanya 38 spesies dari 25 famili tumbuhan yang dimanfaatkan sebagai tumbuhan obat oleh Etnis Sangihe bagian Selatan. Herba merupakan habitus tumbuhan yang banyak dimanfaatkan untuk bahan pengobatan. Bagian tumbuhan yang paling banyak digunakan sebagai obat yaitu daun. Cara pengolahan yang paling banyak digunakan adalah direbus. Jenis penyakit yang dapat diobati dengan tumbuhan obat sebanyak 22 jenis penyakit. Kata kunci: tumbuhan obat, obat tradisional, habitus, Kepulauan Sangihe Bagian Selatan Abstract             Medicinal plants are plants that produce one or more active components that are believed by local people as medicinal plants for traditional medicine practices. This study aimed to identify and to assess the plant species that used as traditional medicine by the Sangihe Ethnic in the Southern Sangihe Islands, North Sulawesi. Data collection was conducted by structured interviews to the indigenous medical practitioners. The results showed that 38 plant species from 25 plant families were used as medicinal plants by the Southern Sangihe Ethnic people. Herbs were plant habitus that were widely used for medicinal ingredients. The leaves were widely used as medicinal plant materials. Boiling was the most processing method for preparing medicinal herbs. There were 22 types of diseases that could be treated using medicinal plants. Keywords: medicinal plants, traditional medicine, habitus, Southern Sangihe Islands


Weed Science ◽  
2021 ◽  
pp. 1-21
Author(s):  
Erika J. Haug ◽  
Khalied A. Ahmed ◽  
Travis W. Gannon ◽  
Rob J. Richardson

Abstract Additional active ingredients are needed for use in aquatic systems in order to respond to new threats or treatment scenarios, enhance selectivity, reduce use rates, and to mitigate the risk of herbicide-resistance. Florpyrauxifen-benzyl is a new synthetic auxin developed for use as an aquatic herbicide. A study was conducted at North Carolina State University, in which 10 µg L−1 of 25% radiolabeled florpyrauxifen-benzyl was applied to the isolated shoot tissue of ten different aquatic plant species in order to elucidate absorption and translocation patterns in these species. Extremely high levels of shoot absorption were observed for all species and uptake was rapid. Highest shoot absorptions were observed for crested floatingheart [Nymphoides cristata (Roxb.) Kuntze] (A192 =20 µg g−1), dioecious hydrilla [Hydrilla verticillata (L.f.) Royle] (A192 =25.3 µg g−1), variable watermilfoil (Myriophyllum heterophylum Michx.) (A192 =40.1 µg g−1) and Eurasian watermilfoil (Myriophyllum spicatum L.) (A192 =25.3 µg g−1). Evidence of translocation was observed in all rooted species tested with the greatest translocation observed in N. cristata (1.28 µg g-1 at 192 HAT). The results of this study add to the growing body of knowledge surrounding the behavior of this newly registered herbicide within aquatic plants.


2012 ◽  
Vol 279 (1736) ◽  
pp. 2269-2274 ◽  
Author(s):  
Daniel P. Bebber ◽  
Mark A. Carine ◽  
Gerrit Davidse ◽  
David J. Harris ◽  
Elspeth M. Haston ◽  
...  

Discovering biological diversity is a fundamental goal—made urgent by the alarmingly high rate of extinction. We have compiled information from more than 100 000 type specimens to quantify the role of collectors in the discovery of plant diversity. Our results show that more than half of all type specimens were collected by less than 2 per cent of collectors. This highly skewed pattern has persisted through time. We demonstrate that a number of attributes are associated with prolific plant collectors: a long career with increasing productivity and experience in several countries and plant families. These results imply that funding a small number of expert plant collectors in the right geographical locations should be an important element in any effective strategy to find undiscovered plant species and complete the inventory of the world flora.


Phytotaxa ◽  
2021 ◽  
Vol 500 (2) ◽  
pp. 61-94
Author(s):  
JÉSSICA LEÃO BARBOSA TANAJURA ◽  
CAROLINA SANTOS PINHO ◽  
RILQUER MASCARENHAS DA SILVA ◽  
MARIA LUIZA SILVEIRA DE CARVALHO

This study aimed to assess the diversity of species in the Espinhaço Range (ER), eastern Brazil, using as a model the diverse plant family Gentianaceae and focusing on the Parque Municipal de Mucugê—Projeto Sempre Viva (PMM), a conservation unit with predominance of  “campo rupestre”. For this purpose, fieldwork expeditions were carried out between the years 2016–2018 along with a survey of species of this family recorded for this conservation unit in public databases. For comparative purposes, the listing of species from other five areas of the ER were also surveyed and we modeled the distribution of species endemic to these mountains, taking into account that they have their restrict distribution, high habitat specificity and importance to the ecosystem. The results indicated the presence of 33 species of Gentianaceae for the ER, eight of them occurring in the PMM. Comparatively, the results pointed to a greater floristic similarity between the PMM, Pico das Almas and Catolés, due to the presence of seven common species. Predictive distribution modeling supports high endemicity of the analyzed species, given their low environmental suitability outside the ER. The models also allowed us to identify possible areas showing high Wallacean shortfall for these species. Thus, the results reinforce the importance of field work, access to physical and digital botanical collections and the integrated use of tools for a more reliable survey of biodiversity.


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