scholarly journals Ant assemblage (Hymenoptera: Formicidae) in forest fragment in Mato Grosso Amazonian

2020 ◽  
Vol 13 (12) ◽  
pp. 65
Author(s):  
M. C. Pereira ◽  
O. T. Dall'Oglio ◽  
J. Dambroz
Keyword(s):  
Species Richness ◽  
Eating Habits ◽  
Abundant Species ◽  
Pitfall Traps ◽  
Community Studies ◽  
Forest Fragment ◽  
Mato Grosso ◽  
Ant Community ◽  
Number Of Individuals

Ant community studies provide a wealth of information, making reliable estimates of local and regional species richness, biology, behavior and fauna morphology data. This work consists of a survey of litter - associated ant fauna in a forest fragment in the municipality of Sinop - MT, Brazil. The mirmecofauna was sampled using pitfall traps from September 2015 to February 2016, with 10 traps spaced 25 m apart along a transect in each of the collections. A total of 5,066 specimens were collected from 7 subfamilies, 23 genera and 35 morphospecies. Myrmicinae was the richest subfamily, accounting for most of the species collected (51.43%), followed by Ponerinae (17.14%) and Formicinae (14.28%). Pheidole (Westwood, 1839) was the most diverse genus, being represented by 6 morphospecies, followed by the genus Neoponera (Emery, 1901) with 3. Regarding the number of individuals, the most abundant species in the studied environment were one species of Pheidole sp.1. , a species of Trachymyrmex sp.1 and Crematogaster arcuata with 1,343, 1,144 and 897 individuals, respectively. As for the eating habits and biology of the species it was verified the great variety of resources that can be exploited by the studied species, with predominance of omnivorous ants.

scholarly journals Diversity of Ophioniformes wasps (Hymenoptera: Ichneumonidae) in a Central-West Brazilian Savanna area

2021 ◽  
Vol 61 ◽  
pp. e20216145
Author(s):  
Alvaro Doria dos Santos ◽  
Helena Carolina Onody ◽  
Carlos Roberto Ferreira Brandão
Keyword(s):  
Species Richness ◽  
Relative Humidity ◽  
Abundant Species ◽  
Brazilian Savanna ◽  
Mato Grosso ◽  
Unknown Species ◽  
Taxonomic Studies ◽  
First Time ◽  
Mato Grosso Do Sul ◽  
Malaise Traps

This study aimed to assess the diversity, abundance and seasonal dynamics of Ophioniformes wasps collected throughout a year, as recorded in Malaise traps set at the Reserva Ecológica da Universidade Estadual do Mato Grosso do Sul, a Brazilian Savanna area in Aquidauana city, MS. A total of 621 specimens of Ophioniformes belonging to 11 subfamilies, 30 genera and 106 species were sampled. Despite the impressive number of species found, in a pattern of a few relatively abundant species and many rare ones, our data estimate even higher richness, probably between 125 to 165 species in the studied area. The genera Diadegma, Nonnus, Diradops, Meniscomorpha, Syzeuctus, Ophiopterus and Thyreodon are recorded for the first time in Mato Grosso do Sul State. Among the climatic variables evaluated, mean temperature and relative humidity were positively and significantly correlated with richness and abundance. Our data highlights the huge unknown species richness of these parasitoids in Brazil and the need of taxonomic studies efforts in the future.

scholarly journals Composition and ecological patterns of snake assemblages in an Amazon-Cerrado Transition Zone in Brazil

2015 ◽  
Vol 105 (2) ◽  
pp. 147-156
Author(s):  
Leandra C. Pinheiro ◽  
Pedro S. Abe ◽  
Youszef O. C. Bitar ◽  
Luiz P. P. Albarelli ◽  
Maria C. Santos-Costa
Keyword(s):  
Species Composition ◽  
Transition Zone ◽  
Abundant Species ◽  
Systematic Sampling ◽  
Pitfall Traps ◽  
Mato Grosso ◽  
Ecological Characteristics ◽  
Ecological Patterns ◽  
Lachesis Muta ◽  
Crotalus Durissus

ABSTRACT The present study encompasses the species composition and ecological characteristics of the snake community in a Cerrado-Amazon transition zone in Midwest of Brazil (state of Mato Grosso). The data were collected during six excursions to the "Tanguro" (study area) by visual encounter survey, pitfall traps with drift fences and non-systematic sampling. We collected 194 specimens, distributed in 34 species, 26 genera, and eight families. The most abundant species were Crotalus durissus Linnaeus, 1758 (n = 50), Philodryas olfersii (Lichtenstein, 1823) (n = 15), Philodryas nattereri Steindachner, 1870 (n = 13), Xenodon rabdocephalus (Wied, 1824) (n = 12), Lachesis muta (Linnaeus, 1766) (n = 10) and Erythrolamprus almadensis (Wagler, 1824) (n = 10). The composition of species found here represents a combination of Cerrado and Amazonian savanna fauna.

scholarly journals Temporal variation in the spider assemblage (Arachnida, Araneae) in canopies of Callisthene fasciculata (Vochysiaceae) in the Brazilian Pantanal biome

2017 ◽  
Vol 107 (0) ◽  
Author(s):  
Lúcia Yamazaki ◽  
Vanessa F. Vindica ◽  
Antonio D. Brescovit ◽  
Marinez I. Marques ◽  
Leandro D. Battirola
Keyword(s):  
Species Richness ◽  
Temporal Variation ◽  
High Water ◽  
Abundant Species ◽  
Generalist Predators ◽  
Mato Grosso ◽  
Canopy Fogging ◽  
High Water Period ◽  
Brazilian Pantanal ◽  
High Diversity

ABSTRACT Spiders are generalist predators and present a high diversity of capturing and foraging, as well as considerable species richness in tropical habitats. Although, generally, not presenting specific relations to the host plant, they can be influenced by its phenology, structure and resource availability. So, this study analyzed temporal variation on the structure and composition of Araneae assemblage in Callisthene fasciculata (Spr.) Mart. (Vochysiaceae) canopies, in an area of monodominant vegetation, in the periods of high water, receding water, dry season and rising water in Pantanal of Mato Grosso, Brazil. The collection was performed on 24 individuals of C. fasciculata, six in each seasonal period, in 2010 and 2011, making use of canopy fogging with insecticide. For that, ten nylon funnels were distributed under each canopy of C. fasciculata individuals, in a total of 240 m² of sampled canopies. In all, 3,610 spiders were collected and distributed in 24 families and 55 species. Anyphaenidae (43.3%; 6.5 ind./m2), Pisauridae (16.2%; 2.4 ind./m2), Araneidae (12.7%; 1.9 ind./m2) and Salticidae (12.4%; 1.9 ind./m2) were the most representative. Osoriella tahela Brescovit, 1998 was the most abundant species (12.2%). The nocturnal aerial runners of foliage (45.6%; 6.9 ind./m2), nocturnal aerial ambushers of foliage (17.3%; 2.6 ind./m2), aerial orb weavers (13.3%; 2.0 ind./m2) and the diurnal aerial runners of foliage (12.5%; 1.9 ind./m2) spiders represented the most abundant guilds. Significant differences were observed in the composition of families and behavioral guilds, as well as abundance and richness among seasonal periods. The assemblage showed the highest abundance in receding water and highest species richness in high water period, probably related to the hydrologic cycle of the area and its influence on C. fasciculata phenology, indicating the importance of this plant species for spider’s diversity maintenance in the Pantanal.

The distribution of leaf litter invertebrates along a Neotropical altitudinal gradient

1994 ◽  
Vol 10 (2) ◽  
pp. 129-150 ◽  
Author(s):  
David M. Olson
Keyword(s):  
Species Richness ◽  
Leaf Litter ◽  
Cloud Forest ◽  
Test Tube ◽  
Pitfall Traps ◽  
The Mean ◽  
Lowland Rainforest ◽  
Litter Invertebrates ◽  
Number Of Individuals ◽  
Leaf Litter Invertebrates

ABSTRACTLeaf litter invertebrates were sampled at eight sites, approximately 250 m apart in elevation, along an altitudinal transect extending from primary lowland rainforest to cloud forest in western Panama. The study focused on several diverse and numerically important litter invertebrate taxa (e.g., ants, spiders, and beetles) that were effectively sampled using a combination of litter sifting and test tube pitfall traps. The mean altitudinal range of species was around 500 m (standard deviation 370 m) and approximately 50% of the species characteristic of a given elevation dropped out after a 500 m change in elevation in either direction. There was no evidence for distinct altitudinal zonation in leaf litter assemblages. Both species richness and number of individuals of most taxa showed a pronounced decline in the vicinity of the upward transition to cloud forests. The data also suggest a broad mid-elevation peak in sample species richness for the litter invertebrate fauna. The implications of the results for biodiversity conservation are discussed.

scholarly journals Potential of the seedling community of a forest fragment for tropical forest restoration

2009 ◽  
Vol 66 (6) ◽  
pp. 772-779 ◽  
Author(s):  
Ricardo Augusto Gorne Viani ◽  
Ricardo Ribeiro Rodrigues
Keyword(s):  
Native Species ◽  
Forest Restoration ◽  
Abundant Species ◽  
Forest Fragment ◽  
Forest Remnants ◽  
Forest Nurseries ◽  
Tropical Forest Restoration ◽  
Regional Forest ◽  
Number Of Individuals ◽  
Seedling Community

Forest restoration projects are usually planted with a reduced number of species as compared to standing forests, largely due to the low availability of native species in seedling nurseries. In the present study, the potential of the native seedling community as a source of seedlings for forest restoration is analyzed. To do so, the seedling community from a forest fragment located in the southeast of Brazil was evaluated. Individuals (tree and shrub species) up to 30 cm height were measured and identified in 20 4 × 4 m plots. Altogether, 6,136 individuals (17 individuals m-2) belonging to 119 species were sampled. The seedling community showed a spatial heterogeneity with respect to the density of individuals and composition of species, and also a spatial aggregation for the 10 most abundant species. Several species that occurred in high densities in the seedling community are not presently available in regional forest nurseries and are therefore not used in restoration projects. This result and the high number of individuals and species found in the fragment suggest a great potential of this type of forest remnants as a source of highly diverse seedling banks for use in restoration projects.

SECONDARY EFFECTS OF CANOPY DIEBACK: THE EPIGEAL CARABID FAUNA IN QUÉBEC APPALACHIAN MAPLE FORESTS

1991 ◽  
Vol 123 (4) ◽  
pp. 851-859 ◽  
Author(s):  
J. Martel ◽  
Y. Mauffette ◽  
S. Tousignant
Keyword(s):  
Species Richness ◽  
Analysis Of Variance ◽  
Basal Area ◽  
Carabid Beetle ◽  
Carabid Beetles ◽  
Negative Response ◽  
Pitfall Traps ◽  
Secondary Effects ◽  
The Impact ◽  
Number Of Individuals

AbstractThe impact of canopy dieback on the activity and diversity of epigeal Carabidae was studied during the summers of 1987 and 1988 in 18 maple stands in southeastern Québec, using pitfall traps. A canopy thinning index (CTI) based on severity and incidence of dieback, and on tree basal area was calculated for each of the 72 stations sampled. An analysis of variance shows that canopy dieback had a significant effect on carabid beetle activity in 1988. The CTI was negatively correlated with the carabid species richness and diversity in 1988. The number of individuals caught per station was negatively correlated with the CTI for all species combined, except for the dominant Pterostichus coracinus Newm. in 1988. These results indicate a negative response of carabid beetles to canopy dieback in 1988; the climate may have tempered the effects of dieback in 1987.

scholarly journals Diversity and habitat use by snakes and lizards in coastal environments of southernmost Brazil

2012 ◽  
Vol 12 (3) ◽  
pp. 78-87 ◽  
Author(s):  
Maurício Beux dos Santos ◽  
Mauro Cesar Lamim Martins de Oliveira ◽  
Alexandro Marques Tozetti
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Habitat Complexity ◽  
Coastal Dunes ◽  
Abundant Species ◽  
Horizontal Distribution ◽  
Pitfall Traps ◽  
Coastal Environments ◽  
Vertical And Horizontal Distribution ◽  
Microclimate Conditions

This study examined species composition differences among snake and lizard assemblages from coastal dunes and restinga habitats in southernmost Brazil. Animals were collected between April 2009 and March 2010 using pitfall traps, artificial shelters, and time-constrained searches in grasslands areas susceptible to flooding. Species richness was higher in the restinga, but lower than the observed in other Brazilian biomes, possibly associated with more unstable microclimate conditions and low habitat complexity (vertical and horizontal distribution of the vegetation) in this habitat. This hypothesis is supported by the fact that the most abundant species of both snakes and lizards have fossorial habits. The assemblage of snakes is apparently mainly determined by abiotic characteristics of the habitat, while the assemblage of lizards, by vegetation cover.

scholarly journals ORCHID BEES (APIDAE: EUGLOSSINI) IN A FOREST FRAGMENT IN THE ECOTONE CERRADO-AMAZONIAN FOREST, BRAZIL

2015 ◽  
Vol 20 (3) ◽  
pp. 67-78 ◽  
Author(s):  
José Max Barbosa OLIVEIRA-JUNIOR ◽  
Sara Miranda ALMEIDA ◽  
Lucirene RODRIGUES ◽  
Ailton Jacinto SILVÉRIO JÚNIOR ◽  
Evandson José ANJOS-SILVA
Keyword(s):  
Species Richness ◽  
Amazon Forest ◽  
Forest Fragment ◽  
Orchid Bees ◽  
Mato Grosso ◽  
Transitional Area ◽  
Representative Species ◽  
Eulaema Nigrita ◽  
Species Richness And Abundance ◽  
Del Rio

<p>This paper presents information about the species richness and abundance of orchid bees in the transitional area between the Cerrado and the Amazon Forest in the Xingu river basin. The males were collected in a forest fragment in the municipality of Ribeirão Cascalheira, northeast Mato Grosso state, Brazil, between 1 and 5 November 2011. Benzyl benzoate, 1.8 cineole, eugenol and vanillin were used as baits, to attract the bees using insect nets and methyl salicylate was used only in the bottle traps. A total of 168 males belonged to four<em> </em>of five Euglossini genera distributed among 16 species were recorded. The greatest species richness was registered in the genus <em>Euglossa</em>, however <em>Eulaema nigrita</em>,<em> </em>was<em> </em>the most abundant Euglossine species in the community. The species richness varied between the edge and the first point within the fragment. The males were more active between 10:00 and 11:00 h, and the 1.8 cineole was the most attractive substance. The fragment studied contained representative species richness of orchid bees in a region of widespread environmental heterogeneity, which is still largely unknown as regards its pollinators and deserves attention for the compilation of new inventories.</p><p><strong>Abejas de orquídeas (Apidae: Euglossini) en un fragmento de bosque en el ecotono Cerrado-Selva Amazónica, Brasil</strong></p><p>En este trabajo se presenta información sobre la riqueza de especies y abundancia de Euglossini en la zona de transición entre el Cerrado y la selva amazónica, en la cuenca del río Xingu. Las muestras se recogieron en un fragmento de bosque en el municipio de Ribeirão Cascalheira, nordeste de Mato Grosso, Brasil, entre el 1 y 5 de noviembre de 2011. Las sustancias puras de benzoato de bencilo, 1,8 cineol, eugenol y la vainillina fueron utilizadas como cebos para atraer los machos usando red de insectos aunque el salicilato de metilo se utilizó en trampas pasivas. Un total de 168 machos pertenecientes a cuatro géneros fueron registrados, distribuidos en 16 especies. La mayor riqueza de especies se registró en el género <em>Euglossa</em>, aunque <em>Eulaema nigrita </em>fue<em> </em>la especie más abundante en la comunidad. La riqueza de especies varió entre el borde y el primer punto dentro del fragmento. Los machos de abejas de orquídeas<em> </em>eran más activos entre 10:00-11:00 h, y el 1.8 cineol fue la sustancia pura más atractiva. El fragmento estudiado contenía un alto grado de riqueza de especies de abejas de orquídeas en una región de heterogeneidad ambiental extensa, que sigue siendo en gran parte desconocido con relación a su fauna de insectos polinizadores y merece la atención para la elaboración de nuevos inventarios.</p>

scholarly journals Non-native spiders change assemblages of Hawaiian forest fragment kipuka over space and time

NeoBiota ◽  
2020 ◽  
Vol 55 ◽  
pp. 1-9 ◽  
Author(s):  
Julien Pétillon ◽  
Kaïna Privet ◽  
George K. Roderick ◽  
Rosemary G. Gillespie ◽  
Don K. Price
Keyword(s):  
Species Richness ◽  
Native Species ◽  
Forest Fragments ◽  
Forest Fragment ◽  
Marked Contrast ◽  
Terrestrial Arthropods ◽  
Habitat Islands ◽  
Highly Correlated ◽  
Number Of Individuals ◽  
Predatory Arthropods

We assessed how assemblages of spiders were structured in small Hawaiian tropical forest fragments (Hawaiian, kipuka) within a matrix of previous lava flows, over both space (sampling kipuka of different sizes) and time (comparison with a similar study from 1998). Standardized hand-collection by night was carried out in May 2016. In total, 702 spiders were collected, representing 6 families and 25 (morpho-)species. We found that the number of individuals, but not species richness, was highly correlated with the area of sampled forest fragments, suggesting that kipuka act as separate habitat islands for these predatory arthropods. Species richness was significantly lower in the lava matrix outside the kipuka compared to the kipuka habitats, although there was no statistical difference in species composition between the two habitats, largely because of similarity of non-native species in both habitats. Over the last 20 years, the abundance of non-native spider species substantially increased in both kipuka and lava habitats, in marked contrast to the vegetation that has remained more intact. With endemicity of terrestrial arthropods reaching over 95% in native forests, non-native predatory species present a critical challenge to the endemic fauna.

scholarly journals Short Communication: The species diversity and composition of roadside trees in five cities in Sumatra, Indonesia

2018 ◽  
Vol 19 (5) ◽  
pp. 1615-1621 ◽  
Author(s):  
WIRYONO . ◽  
YANSEN . ◽  
ADITYA . ◽  
DAVID JUARA LAMHOT ◽  
JURIAH HUTAHAEAN
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Introduced Species ◽  
Native Species ◽  
Short Communication ◽  
Diversity Index ◽  
Wiener Index ◽  
Abundant Species ◽  
Number Of Individuals ◽  
Aesthetic Values

Wiryono, Yansen, Aditya, Lamhot DJ, Hutahaean J. 2018. Short Communication: The species diversity and composition ofroadside trees in five cities in Sumatra, Indonesia. Biodiversitas 19: 1615-1621. Roadside trees make living in a city more enjoyable dueto their aesthetic values and ecosystem services. The ecological benefits of roadside trees may be enhanced by increasing the speciesdiversity and the proportion of native species. The objective of this study was to know the species diversity and composition of roadsidetrees in the cities of Palembang, Bengkulu, Curup, Pematang Siantar and Argamakmur, in Sumatra Island, Indonesia, varying in size andaltitude. Data of trees were collected from selected streets and analyzed to determine the species richness (S), Shannon-Wiener index ofdiversity (Hʹ) and Ellenberg index of community similarity (ISE). The results showed that the species richness in a city ranged from 7 to26, with the diversity index between 1.05 and 2.08. The large and medium cities had higher S and Hʹ. More introduced species werefound, both in number of species and number of individuals, than the native ones. The similarity among cities in species compositionranged from 47 to 82%. Overall, Swietenia macrophylla, an introduced species, was the most abundant species. The S and Hʹ values ofall cities were considered low and the composition of tree species did not support the conservation of native species. It is, therefore,essential to increase the species diversity of street trees, especially by planting native species.

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