scholarly journals Plant inhabiting mites (Acari) from the Cerrado biome of Mato Grosso State, Brazil

Zootaxa ◽  
2009 ◽  
Vol 2061 (1) ◽  
pp. 45-60 ◽  
Author(s):  
PETERSON R. DEMITE ◽  
REINALDO J. F. FERES ◽  
ANTONIO C. LOFEGO ◽  
ANIBAL R. OLIVEIRA

This study reports on the mites associated with plants in two Cerrado formations: Cerradão and Riparian Forest, located in Itiquira, in the southern region of Mato Grosso State, Brazil. A total of 67 mite species was collected, belonging to 20 families in the suborders Gamasida, Actinedida, Acaridida and Oribatida. Phytoseiidae (13 species) and Tarsonemidae (11 species) were the families with the greatest richness. Iphiseiodes zuluagai (Denmark & Muma) (Phytoseiidae), Lamellobates (Lamellobates) sp. (Oribatida, Austrachipteriidae) and Agistemus sp. (Prostigmata, Stigmaeidae) were the most frequent species, collected on eleven, ten and nine plant species, respectively. Among the plants found during the fieldwork, the plant species Bauhinia longifolia (Bong.) Steud. (Caesalpinaceae), collected in the Riparian Forest formation, contained the highest species richness (28 species). The specific identification of approximately 70% of the taxa collected was not possible. For these reasons, surveys of mites in natural areas that include estimates of the ratio of undescribed species are important, because they provide a panorama of the great diversity of unknown mite fauna in these environments.

2013 ◽  
Vol 8 (9) ◽  
pp. 888-897
Author(s):  
Maša Ignjatović ◽  
Mitja Kaligarič ◽  
Sonja Škornik ◽  
Danijel Ivajnšič

AbstractDynamic alluvial landscapes offer many possibilities to study primary succession processes on newly developed habitats. However, within the Central European environmental conditions, where watercourses and their riparian spaces are under severe anthropogenic pressures — water regulation, deforestation, lowering of groundwater — natural processes are limited. We studied primary succession on alluvial stream deposits in an artificial lake, where we aimed to follow the terrestrialisation rate and habitat turnover, along with plant species richness and composition across successional stages. In 30 years, a pristine white-willow riparian forest developed. One half of the initially aquatic habitat became terrestrial. The frequency of change, studied on 11250 quadrats 10×10 m each (on a scale from “no change” to 8 changes) and the mean of change per habitat type (most of the habitats changed 2 to 3 times) revealed only one successional trajectory. The percentage flow chart showed a deterministic pathway of succession. The “time since formation” of a terrestrial habitat shows that more than 20% of the lake was terrestrialised within in the first ten years. We studied species richness and composition along three composed transects, following successional stages. We found that the newly assembled riparian white willow woodland has a surprisingly low colonisation rate of plant species.


2010 ◽  
Vol 82 (3) ◽  
pp. 671-678 ◽  
Author(s):  
Ioni G. Colares ◽  
Raquel N. V. Oliveira ◽  
Rafael M. Liveira ◽  
Elton P. Colares

The aim of this study was to determine the diet of coypu (Myocastor coypus) in two areas (Santa Isabel do Sul wetlands - Area 1, and Santa Marta Farm - Area 2) in the Southern region of Brazil, using microhistological analyses of feces. Twenty-four plant species were identified from collected feces samples. Among the identified species, nine are common in the animals' diet in both areas; the presence of Oriza sativa was not detected in any of the samples. Among the identified species, 84% and 54% of the coypu's diet from Areas 1 and 2, respectively, are aquatic plants. Poaceae family was most common, being found in 82% of the samples from both areas. Paspalum disthichum (Area 1) and Panicum tricholaenoides (Area 2) were the most frequent species on the coypu's diet. The diet comparison for both areas indicates that feeding habits vary depending on the type of habitat, environmental conditions and food availability. The absence of rice in our analysis may be an indication for the preservation of native areas around watercourses, so as to prevent coypu from invading irrigated crops.


2019 ◽  
Vol 24 (4) ◽  
pp. 587
Author(s):  
Adriano Luis Mendonça ◽  
Antonio Carlos Lofego ◽  
Anildo Pott ◽  
Rodrigo Damasco Daud ◽  
Peterson Rodrigo Demite

Phytoseiidae is the most extensively studied family of predatory mites, some of which are effectively used as biological control agents. Nevertheless, studies of these mites in some Brazilian biomes such as the Pantanal are still scarce. The objective this publication was to assess the diversity of this family in Pantanal vegetation from Mato Grosso do Sul State, Brazil, verifying the importance of the native plants as reservoirs for these mites. Samplings were carried out in five phytophysiognomies of the Pantanal: Cambarazal, Capão (forest islet), Carandazal, Riparian Forest and Paratudal. Thirty-five phytoseiid species were recorded on 40 plant species of 28 families. The most common species were Amblyseius chiapensis De Leon and Euseius concordis De Leon, recorded on 21 and 18 plant species, respectively. Inga vera Willd. (Fabaceae) and Paullinia pinnata L. (Sapindaceae) were the host plants harboring the greatest richness of phytoseiids, 15 and 14 species, respectively. Our results suggest a high diversity of phytoseiid mites in the Pantanal biome. However, as only a small proportion of the total biome area was considered, only a fraction of the mite diversity was probably recovered. Thus, new studies on this biome are needed, especially in other well-preserved native vegetation remnants.


2015 ◽  
Vol 30 (10) ◽  
pp. 2133-2146 ◽  
Author(s):  
Emmanuelle Araujo Calçada ◽  
Jonathan Lenoir ◽  
Jan Plue ◽  
Laura S. Broeckx ◽  
Déborah Closset-Kopp ◽  
...  

2018 ◽  
Vol 23 (8) ◽  
pp. 1598
Author(s):  
Walter Santos de Araujo ◽  
Rodrigo Damasco Daud

Plant-inhabiting mites are among the most diverse arachnid groups in terrestrial ecosystems. Because plant mites depend on their host plants, plant-related characteristics can be expected to be good predictors of mite diversity in natural vegetation, as observed for other groups of plant-inhabiting arthropods. Here, we use plant-related characteristics to predict plant mite diversity in Brazilian natural vegetation. We compiled a total of 206 mite species recorded on 343 host plant species, the majority from the Brazilian Atlantic Forest and Cerrado biomes. Among the plant taxa that hosted the highest mite richness are the families Euphorbiaceae, Meliaceae and Fabaceae, and the genera Trichilia (Meliaceae), Actinostemon and Alchornea (Euphorbiaceae). Mite species richness in different Brazilian inventories was positively influenced by sampled plant species richness and taxonomic range of sampled plants. In addition, we also found a positive correlation between plant family size (the number of plant species in a family) and total mite richness and predatory mite richness. Based on our analyses, we estimated a potential 20685 plant mite species for Brazil, which is almost 100 times higher than the number currently compiled in this study. Our findings suggest the richness of host plant species an important predictor of Brazilian mite diversity and revels that the current record of mite species richness for Brazil is only a small fraction of the potential diversity harbored by rich Brazilian flora.


2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Romina Daiana Fernández ◽  
Sergio Javier Ceballos ◽  
Ana Lucía González Achem ◽  
Margarita del Valle Hidalgo ◽  
Hugo Rafael Fernández

The aims of this work were to describe the conservation status of riparian forests located in a mountain subtropical basin of Tucumán province, Argentina, and assess how the quality of riparian forests is related with altitude, plant species richness, proportion of exotic species, and Total Suspended Solids (TSS) in adjacent rivers. Composition and species richness of riparian forests were studied at 16 sites located along an altitudinal gradient and TSS was determined from water samples collected in each site. In order to evaluate conservation status of riparian forests, we calculated an index of Quality of Yungas Riparian Forests (QBRy). We recorded 90 plant species at all sites, from which 77% were native. QBRy index was mainly associated with altitude and varied from riparian forests with good preservation or slightly disturbed to those with extreme degradation. At lower altitude, forests were more disturbed, more invaded by exotic plant species, and closer to urban and cropped areas. QBRy was not correlated with species richness or TSS. Like other riparian forests of Argentina, plant species invasion increased their degradation; therefore, future studies should focus on native riparian forests conservation and on the management of invasive plant species, which affect their quality.


Author(s):  
Eliziane M. Conceição ◽  
Peterson R. Demite ◽  
José M. Rezende ◽  
Maria A. Carniello ◽  
Antonio C. Lofego

Phytoseiidae (Acari: Mesostigmata) is one of the most studied mite families due to their use in biological control programs. The southwestern region of Mato Grosso State, Brazil remains poorly explored concerning its mite fauna. Therefore, the aim of this study was to conduct a survey of Phytoseiidae mites in the southwestern region of Mato Grosso State, Brazil. Samplings were carried out in three areas, representing the following: Amazon Forest (AF), Cerrado (CE) and Pantanal (PA) biomes. Five species of native plants commonly found throughout the areas were selected, as well as five others exclusive for each area. In total, five individuals from each plant species were collected. Thirty mite species belonging to 16 genera were recorded: AF (14 species), CE (15) and PA (23). The three most abundant species in this study belongs to the genus Amblyseius: A. acalyphus Denmark & Muma, A. aerialis (Muma) and A. chiapensis De Leon. In the AF the most abundant species were A. aerialis, A. chiapensis and Euseius concordis (Chant); in the CE were A. acalyphus, A. chiapensis and Typhlodromips furcus Lofego, Demite & Feres; lastly in the PA were A. acalyphus, A. aerialis and T. furcus. The plants which harbored the highest richness were common to the three biomes: Physocalymma scaberrimum Pohl (Lithraceae) (12), Cecropia pachystachya Trécul (Urticaceae) (11) and Siparuna guianensis Aubl. (Siparunaceae), (11). A new species, Amblyseius matogrossensis sp. nov., is described and illustrated.


2012 ◽  
Vol 102 (3) ◽  
pp. 292-297 ◽  
Author(s):  
Matheus H. Simões ◽  
Mariana D. Cuozzo ◽  
Fernando A. Frieiro-Costa

An inventory of social wasps in Cerrado biome of the southern of the state of Minas Gerais was performed. A comparison between field and Riparian Forest areas was made in relation to species richness; correlations between diversity, sample methods and environmental factors were conducted. A total of 32 species was registered and Polybia fastidiosuscula de Saussure, 1854 was the most abundant species. The higher richness was in the Cerrado Field, as well as the highest diversity index. The temperature and rainfall had significant correlation with species richness and a significant variation in richness between dry and wet seasons was observed. Polybia fastidiosuscula was more abundant in the Riparian Forest during the dry season and in the Cerrado Field during wet season. The study area showed a great diversity of social wasps, with record both widely distributed species such as rare species, which indicates the quality and potential area for future studies.


2002 ◽  
Vol 11 (2) ◽  
pp. 121-135 ◽  
Author(s):  
S. TARMI ◽  
H. TUURI ◽  
J. HELENIUS

To determine the importance of field boundary habitats for farmland biodiversity, we surveyed a total of 193 boundaries from four climatically and agriculturally dissimilar regions in Finland. We measured the current plant species richness and composition of the boundaries, and based on the differences in vegetation characteristics, we describe six boundary types. The observed plant species were mainly indicators of fresh to wet soils and moderate to rich mineral nitrogen content. The most frequent species were tall, perennial monocots and dicots indicating the high productivity of thevegetation. Moreove, herbicide-tolerant species were common. No species rare for Finland were found.In animal husbandry regions, the most frequent species were sown grassland species and typical grassland weeds. In cereal production regions, fast-spreading root weeds tolerant of herbicides were the most frequent. Mean species richness was highest in the cluster Ca-lamagrostis-Phalaris (24 species (s)/boundary (b)), which we considered as representative of moist sites with some disturbance by agricultural practices. Most species-poor were the clusters Elymus-Anthriscus (14 s/b)and Elymus-Cirsium (16 s/b),both found predominantly in cereal production regions in southern Finland. Our results suggest that the biodiversity value of boundaries is lowest in the most intensive cereal production areas and highest in areas of mixed farming.;


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