Bee Diversity and Solanum didymum (Solanaceae) Flower–Visitor Network in an Atlantic Forest Fragment in Southern Brazil

Abstract Herbivory is an interaction with great impact on plant communities since relationships between herbivores and plants are fundamental to the distribution and abundance of species over time and space. The aim of this study was to monitor the rate of leaf expansion in the tree fern Cyathea phalerata and evaluate the damage caused by herbivores to leaves of different ages and whether such damage is related to temperature and precipitation. The study was performed in a subtropical Atlantic Forest fragment located in the municipality of Caraá, in the northeast hillside of Rio Grande do Sul state, in southern Brazil. We monitored 24 mature individuals of C. phalerata with croziers in a population of approximately 50 plants. Leaf expansion rate, percentage of damaged leaves and leaf blade consumption rate by herbivory were calculated. Monthly means for temperature and accumulated rainfall were calculated from daily data. Croziers of C. phalerata were found to expand rapidly during the first and second months after emergence (3.98 cm day-1; 2.91 cm day-1, respectively). Damage caused by herbivory was observed in all of the monitored leaves, but none of the plants experienced complete defoliation. The highest percentage (57%) of damaged leaves was recorded at 60 days of monitoring, and also the highest monthly consumption rate of the blade (6.04%) occurred with young, newly-expanded leaves, while this rate remained between 1.50 and 2.21% for mature leaves. Rates of monthly leaf consumption and damaged leaves showed positive and strong relationship with each other and with temperature. The rapid leaf expansion observed for C. phalerata can be considered a phenological strategy to reduce damage to young leaves by shortening the developmental period and accelerating the increase of defenses in mature leaves.

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Diversity of flower visiting bees of Eugenia uniflora L. (Myrtaceae) in fragments of Atlantic Forest in South Brazil

Sociobiology ◽

10.13102/sociobiology.v63i3.982 ◽

2016 ◽

Vol 63 (3) ◽

pp. 982 ◽

Cited By ~ 3

Author(s):

Mary Ellen Reis Diniz ◽

Maria Luisa Tunes Buschini

Keyword(s):

Atlantic Forest ◽

Food Source ◽

Common Species ◽

Forest Fragments ◽

Native Bees ◽

Southern Brazil ◽

Eugenia Uniflora ◽

Bee Diversity ◽

Flower Visiting ◽

South Brazil

Eugenia uniflora L. (Myrtaceae) is pollinated mostly by bees and there are no restrictions for pollen collection in their flowers. This stimulated us to study the bee diversity on its flowers in two forest fragments in southern Brazil, in August and September, 2012. A total of 826 bees belonging to 39 species and four subfamilies were captured with entomological nets. Halictinae presented the greatest richness, followed by Apinae, Colletinae and Andreninae. Apis mellifera was the only common species and the most abundant, followed by Scaptotrigona bipunctata and Melipona obscurior. Seven species were classified as intermediate and 31 as rare. Highest numbers of bees were collected from 10h to 11:30, and The species richness of flower visiting bees was much higher than that of previous studies with first records of Plebeia remota and Anthrenoides paolae. Eugenia uniflora is a food source for exotic and native bees and possibly contributes to the conservation of these bees in forest fragments. In return, the bees probably act in maintaining this plant native of the Atlantic Forest.

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Anuran diversity (Amphibia, Anura) in a Seasonal Forest fragment in southern Brazil

Biota Neotropica ◽

10.1590/s1676-06032013000100025 ◽

2013 ◽

Vol 13 (1) ◽

pp. 255-264 ◽

Cited By ~ 5

Author(s):

Veluma Ialú Molinari De Bastiani ◽

Elaine Maria Lucas

Keyword(s):

Species Composition ◽

Atlantic Forest ◽

Management Practices ◽

Sampling Effort ◽

Southern Brazil ◽

Forest Fragment ◽

Santa Catarina ◽

Breeding Sites ◽

Accumulation Curve ◽

Visual Searches

The Atlantic Forest is the home to a diverse and threatened fauna of amphibians. However, knowledge on these species is still scarce to many of its ecosystems, such as the Seasonal Forest. This study was aimed at determining the diversity of anurans in Parque Estadual Fritz Plaumann (PEFP), located in the municipality of Concórdia, Santa Catarina, southern Brazil. The PEFP comprises 741 ha, and is the only Conservation Unit of Seasonal Forest in Santa Catarina state. From August 2010 to July 2011 we surveyed frogs fortnightly during four to ten days, from sunset until approximately midnight. Active, audio and visual searches were carried out at breeding sites and favorable areas to meet the species. The sampling effort of the survey was evaluated with species accumulation curve considering the field expeditions as sample units. The species composition of PEFP was compared with 16 other different vegetal formations of the Atlantic Forest biome through similarity analysis. Twenty-three species were recorded. The accumulation curve approached an asymptote, indicating that most species of the area were observed. Most species were observed in lentic habitats of open areas. The anuran species composition of PEFP was similar to other areas of Mixed Ombrophile Forest and Seasonal Forest in southern region. Although PEFP comprised a relatively small area, the occurrence of habitat specialists, endangered amphibians that dependent on the forest, indicates the importance of this area for the conservation of the regional fauna. The continuation of long-term standardized studies is needed to monitor the population dynamics of recorded species and support alternative management practices, aiming at the conservation of anurans at the Seasonal Forest.

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Occurrence of beetles (Insecta: Coleoptera) in mosquito ovitraps (Diptera: Culicidae, Culicinae) in an Atlantic Forest fragment

Revista Brasileira de Zoociências ◽

10.34019/2596-3325.2017.v18.24576 ◽

2017 ◽

Vol 18 (1) ◽

Author(s):

Emili Bortolon dos Santos ◽

Pedro Giovâni da Silva ◽

Mario Arthur Favretto ◽

Gerson Azulim Müller

Keyword(s):

Atlantic Forest ◽

Rio Grande ◽

First Record ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Forest Fragment ◽

The Family

Ovitraps are generally used to collect immatures of Culicinae (Diptera: Culicidae). This study reports eight species of beetles found in ovitraps placed in an Atlantic Forest fragment in the state of Rio Grande do Sul, Southern Brazil. Seven species were classified in the family Scarabaeidae (subfamily Scarabaeinae), and one species in the family Hybosoridae (subfamily Hybosorinae). The first record of Canthon angularis Harold, 1868 in Rio Grande do Sul state is also documented.

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Culture-independent assessment of the diazotrophic Bradyrhizobium communities in the Pampa and Atlantic Forest Biomes localities in southern Brazil

Systematic and Applied Microbiology ◽

10.1016/j.syapm.2021.126228 ◽

2021 ◽

pp. 126228

Author(s):

Joanna Banasiewicz ◽

Bruno B. Lisboa ◽

Pedro B. da Costa ◽

Gilson Schlindwein ◽

Stephanus N. Venter ◽

...

Keyword(s):

Atlantic Forest ◽

Southern Brazil ◽

Culture Independent ◽

Independent Assessment

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Small mammal glucocorticoid concentrations vary with forest fragment size, trap type, and mammal taxa in the Interior Atlantic Forest

Scientific Reports ◽

10.1038/s41598-021-81073-2 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Sarah A. Boyle ◽

Noé U. de la Sancha ◽

Pastor Pérez ◽

David Kabelik

Keyword(s):

Atlantic Forest ◽

Small Mammals ◽

Acute Stress ◽

Physiological Stress ◽

Fragment Size ◽

Hair Shaft ◽

Forest Fragments ◽

Forest Fragment ◽

Trapping Methods ◽

Free Ranging

AbstractSpecies that live in degraded habitats often show signs of physiological stress. Glucocorticoid hormones (e.g., corticosterone and cortisol) are often assessed as a proxy of the extent of physiological stress an animal has experienced. Our goal was to quantify glucocorticoids in free-ranging small mammals in fragments of Interior Atlantic Forest. We extracted glucocorticoids from fur samples of 106 small mammals (rodent genera Akodon and Oligoryzomys, and marsupial genera Gracilinanus and Marmosa) from six forest fragments (2–1200 ha) in the Reserva Natural Tapytá, Caazapá Department, Paraguay. To our knowledge, this is the first publication of corticosterone and cortisol levels for three of the four sampled genera (Akodon, Oligoryzomys, and Marmosa) in this forest system. We discovered three notable results. First, as predicted, glucocorticoid levels were higher in individuals living withing small forest fragments. Second, animals captured live using restraint trapping methods (Sherman traps) had higher glucocorticoid levels than those animals captured using kill traps (Victor traps), suggesting that hair glucocorticoid measures can reflect acute stress levels in addition to long-term glucocorticoid incorporation. These acute levels are likely due to urinary steroids diffusing into the hair shaft. This finding raises a concern about the use of certain trapping techniques in association with fur hormone analysis. Finally, as expected, we also detected genus-specific differences in glucocorticoid levels, as well as cortisol/corticosterone ratios.

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Recovery of litter inhabiting beetle assemblages during forest regeneration in the Atlantic forest of Southern Brazil

Insect Conservation and Diversity ◽

10.1111/j.1752-4598.2010.00078.x ◽

2010 ◽

Vol 3 (2) ◽

pp. 103-113 ◽

Cited By ~ 18

Author(s):

PHILIPP W. HOPP ◽

RICHARD OTTERMANNS ◽

EDILSON CARON ◽

STEFAN MEYER ◽

MARTINA ROß-NICKOLL

Keyword(s):

Atlantic Forest ◽

Forest Regeneration ◽

Southern Brazil ◽

Beetle Assemblages

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Fruit Availability and Peccary Frugivory in an Isolated Atlantic Forest Fragment: Effects on Peccary Ranging Behavior and Habitat Use

Biotropica ◽

10.1111/j.1744-7429.2007.00351.x ◽

2007 ◽

Vol 0 (0) ◽

pp. 070925063121003-??? ◽

Cited By ~ 3

Author(s):

Alexine Keuroghlian ◽

Donald P. Eaton

Keyword(s):

Habitat Use ◽

Atlantic Forest ◽

Ranging Behavior ◽

Forest Fragment ◽

Fruit Availability

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Three new Anaulacomera species (Orthoptera: Tettigoniidae: Phaneropterinae) from the Iguaçu National Park and nearby areas, southern Brazil

Zootaxa ◽

10.11646/zootaxa.5061.2.6 ◽

2021 ◽

Vol 5061 (2) ◽

pp. 340-352

Author(s):

MARCOS FIANCO ◽

OSCAR J. CADENA-CASTAÑEDA ◽

NEUCIR SZINWELSKI ◽

LUIZ R. R. FARIA

Keyword(s):

New Species ◽

Atlantic Forest ◽

National Park ◽

Species Group ◽

Southern Brazil ◽

Distribution Maps ◽

Incertae Sedis ◽

Present Distribution ◽

Species Groups ◽

Three New Species

Three new species of Anaulacomera are described, Anaulacomera (Anaulacomera) mariellae sp. n. and Anaulacomera (Anallomes) arlindoi sp. n., belonging respectively to the Inermis and Lanceolata species group, and Anaulacomera angelinae sp. n., placed as incertae sedis. The individuals were collected at the Iguaçu National Park and adjacent small fragments of Atlantic Forest, in southwestern Paraná state, Brazil. The description was based on external morphology of males. We also present distribution maps for the species of the Inermis and the Lanceolata species groups.

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Feather mites (Acari, Astigmata) associated with birds in an Atlantic Forest fragment in Northeastern Brazil

Brazilian Journal of Biology ◽

10.1590/1519-6984.23313 ◽

2015 ◽

Vol 75 (3) ◽

pp. 726-735 ◽

Cited By ~ 5

Author(s):

HM Silva ◽

FA Hernandes ◽

M Pichorim

Keyword(s):

Atlantic Forest ◽

Bird Species ◽

Rio Grande ◽

Neotropical Region ◽

Species Level ◽

Northeastern Brazil ◽

Forest Fragment ◽

Visual Examination ◽

Feather Mites ◽

First Time

AbstractThe present study reports associations between feather mites (Astigmata) and birds in an Atlantic Forest fragment in Rio Grande do Norte state, in Brazil. In the laboratory, mites were collected through visual examination of freshly killed birds. Overall, 172 individuals from 38 bird species were examined, between October 2011 and July 2012. The prevalence of feather mites was 80.8%, corresponding to 139 infested individuals distributed into 30 species and 15 families of hosts. Fifteen feather mite taxa could be identified to the species level, sixteen to the genus level and three to the subfamily level, distributed into the families Analgidae, Proctophyllodidae, Psoroptoididae, Pteronyssidae, Xolalgidae, Trouessartiidae, Falculiferidae and Gabuciniidae. Hitherto unknown associations between feather mites and birds were recorded for eleven taxa identified to the species level, and nine taxa were recorded for the first time in Brazil. The number of new geographic records, as well as the hitherto unknown mite-host associations, supports the high estimates of diversity for feather mites of Brazil and show the need for research to increase knowledge of plumicole mites in the Neotropical region.

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