scholarly journals Palinologia de turfas do alto curso do Arroio Cará, Coxilha Rica, Santa Catarina, Brasil

2021 ◽  
Vol 24 (3) ◽  
pp. 265-277
Author(s):  
Edenir Bagio Perin ◽  
Gisele Leite de Lima Primam ◽  
Marcelo Accioly Teixeira de Oliveira

Palynology of peaty sediments from the high course of Cará Brook Creek, Coxilha Rica, Santa Catarina, Brazil. This paper presents the results of the palynological study of a sedimentary core collected in a bog in the upper part valley of Cará Brook Creek, in the cultural territory of Coxilha Rica, located in the Campos Gerais Plateau in Santa Catarina, Southern Brazil. The base of the core was dated in 6.900 14C years BP (7,845–7,690 cal years BP). The identification of the palynomorphs and the cluster analysis made possible to define two distinct palynological phases, despite the predominance of grassland vegetation throughout the whole core. From 34 cm, the frequency of bryophytes decreases, accompanied by the increase of the diversity of all vegetal taxa. Throughout the core, the most frequent families are Poaceae, Cyperaceae Apiaceae. The results indicate that the landscape of the upper course of the Brook Creek was characterized by grasslands from 6,900 14C years BP under a regional and humid climate, with a temperature increase in the historical period. Keywords: Middle Holocene, palynomorphs, grasslands, Araucaria forest, Highland.

Phytotaxa ◽  
2017 ◽  
Vol 312 (2) ◽  
pp. 213 ◽  
Author(s):  
GUSTAVO HASSEMER ◽  
LUÍS A. FUNEZ ◽  
JOÃO PAULO R. FERREIRA

This contribution presents and describes Tradescantia serrana, a new species from the edges of Araucaria forest in the highlands of southern Santa Catarina state, southern Brazil. Illustrations, photographs and a distribution map for the new species are provided. Here, we also typify T. umbraculifera, a species morphologically related to T. serrana, and present evidence against the synonymisation of T. schwirkowskiana with T. crassula proposed by Pellegrini et al. (2017). Furthermore, we extend the distribution of T. schwirkowskiana to Paraná state.


2013 ◽  
Vol 13 (4) ◽  
pp. 57-70 ◽  
Author(s):  
Erikcsen Augusto Raimundi ◽  
Frederico Falcão Salles ◽  
Gilza Maria de Souza-Franco

The first studies of Leptophlebiidae in the Santa Catarina State, Southern Brazil, dated from 1920. Since then, not much is known about the family (even to the Order Ephemeroptera) to the State. The main goal of this study was to survey fauna of Leptophlebiidae in the Santa Catarina State based on nymphs. The material was obtained from the collection deposited at the Laboratório de Pesquisa em Ecologia e Química of the Universidade Comunitária da Região de Chapecó, besides additional specimens collected between 2008 and 2009. Occurrences were plotted in the hydrograph map of Santa Catarina State, with one map for each genus. The Leptophlebiidae nymphs were recorded in 26 aquatic environments that included small streams and rivers. We identified 24 morphotypes distributed in 12 genera. Number of genera in the Western of Santa Catarina increased from eight to 15. Thraulodes, Ulmeritoides and Homothraulus presented higher frequency of occurrence in the region. Leentvaaria and Hermanella were associated to regions well conserved such as in the Araucaria forest. Needhamella and Segesta were related mainly to Irani River.


Check List ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 805-809
Author(s):  
Maíra Michalak de Souza ◽  
Bruno Busnello Kubiak ◽  
Renan Maestri ◽  
Rafael Kretschmer ◽  
Daniel Galiano

Juliomys ossitenuis Costa, Pavan, Leite and Fagundes, 2007 was previously known in Brazil from the Atlantic Forest of the Southeastern Region to the Dense Ombrophilous Forest and Araucaria Forest of the Southern Region. The new record from Chapecó, in Santa Catarina state, confirmed by morphological and cytogenetic analyses, extends its distribution about 300 km westwards. This is the westernmost record for the species, in a region characterized by the transition between deciduous and Araucaria forests.


Rodriguésia ◽  
2011 ◽  
Vol 62 (3) ◽  
pp. 445-457
Author(s):  
Robberson Bernal Setubal ◽  
Martin Grings ◽  
Eduardo Pasini ◽  
Guilherme Dubal dos Santos Seger

Abstract Myrceugenia mesomischa (Burret) D. Legrand & Kausel (Myrtaceae), a tree species poorly cited in floristic and phytosociological surveys in its area of known occurrence, was recorded as one of the species with the highest importance value in a fragment of Araucaria forest in São Francisco de Paula municipality, Rio Grande do Sul state, Brazil. The species was abundant in the understory strata of the forest, showing the highest frequency and density of the survey. Considering the paucity of data on the species, its degree of rarity and endemism (occurring only in the states of Rio Grande do Sul and Santa Catarina, Brazil), more studies are needed to evaluate the true current state of conservation of populations of this species.


2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Denise Monique Dubet da Silva Mouga ◽  
Paulo Nogueira-Neto ◽  
Manuel Warkentin ◽  
Vanessa Feretti ◽  
Enderlei Dec

The apifauna of an araucaria forest in southern Brazil was studied during 2001 – 2003, using entomological nets on flowering plants. A total of 2,749 individuals were sampled from five subfamilies and 93 species of bees. A total of 82 species with up to 10 individuals were sampled and 29 species had no distribution for Santa Catarina. Non-corbiculate Apidae and Halictidae species predominated as well as individuals of corbiculate Apidae and Halictidae. There was a decrease in species richness in cold seasons, being then sampled only Augochloropsis sp. 01, Augochloropsis sp. 10, Exomalopsis tomentosa, Neocorynura aenigma, Paroxystoglossa brachycera, Trigona spinipes and Apis mellifera. A bivoltine pattern was noticed, with a peak in May and in September-November, for richness and abundance. Ecological indexes over the months were different with and without A. mellifera. The bee accumulation curve remained in elevation until the end of sampling. The richness estimators indicated values of 142 and 175 species. The bee species were sampled on 125 species of plants of 40 famillies and the most visited were Asteraceae, Fabaceae/Solanaceae, Euphorbiaceae/Lamiaceae, Malvaceae/Rosaceae and Commelinaceae/Cucurbitaceae/ Liliaceae/Verbenaceae. A total of 48 species of plants characteristics of araucaria forests were sampled.


Check List ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1494
Author(s):  
Luciana Beatriz Gnigler ◽  
Mayara Krasinski Caddah

A floristic survey was carried out in a contact area between Araucaria Forest and Seasonal Forest areas, in the municipality of Guaraciaba, Far West of Santa Catarina state, southern Brazil. We provide a checklist containing 108 species and 42 plant families for the area. Families with the most encountered number of species were Myrtaceae (eight species), Solanaceae (eight), Euphorbiaceae (seven) and Poaceae (six). Two species are classified as endangered of extinction, following IUCN criteria. An analysis using UPGMA algorithm and species composition comparisons using additional 6 areas of Araucaria Forest and 6 areas of Seasonal Forest showed its greater relationship to other Araucaria Forest areas, but also the influence of the adjacent Seasonal Forest areas in the floristic composition of the surveyed area.


Phytotaxa ◽  
2014 ◽  
Vol 183 (1) ◽  
pp. 44 ◽  
Author(s):  
Emilaine Biava Dalmolim ◽  
Ana Zannin

Bothriochloa catharinensis, a new species of Andropogoneae (Poaceae: Panicoideae, Andropogoneae) endemic to montane grasslands associated with araucaria forest in the state of Santa Catarina, Southern Brazil, is described and illustrated. Morphological similarities between the new taxon and other species of Bothriochloa are discussed. Comments on habitat, morphology, distribution and conservation status are provided.


2011 ◽  
Vol 4 (1) ◽  
pp. 10-12 ◽  
Author(s):  
Mario Arthur Favretto ◽  
Marcia Patrícia Hoeltgebaum ◽  
Rodrigo Lingnau ◽  
Fernanda Maurer D'Agostini

As bromélias são plantas de característica marcante devido a disposição de suas folhas permitindo o acúmulo de água entre as mesmas, criando verdadeiros ecossistemas sobre a planta e permitindo o abrigo e desenvolvimento de diversos invertebrados, uma diversidade que muitas vezes passa despercebida. O presente estudo teve como objetivo analisar a importância das bromélias como mantenedoras de biodiversidade no Parque Natural Municipal Rio do Peixe, localizado no município de Joaçaba, centro-oeste de Santa Catarina, sul do Brasil (27º10’22”S, 51º30’33”W). O Parque Natural está localizado em área de ecótono florestal, caracterizando-se por uma transição entre Floresta Estacional Semidecidual e Floresta Ombrófila Mista. O estudo foi conduzido durante o período de janeiro de 2009 a janeiro de 2010. Ao longo do período de amostragem foram encontrados aproximadamente 168 invertebrados nos fitotelmatos das 48 bromélias coletadas, dentre os quais as ordens mais abundantes foram Hymenoptera (46 exemplares) e Coleoptera (36 exemplares). Quando presentes em um ambiente as bromélias aumentam o número de recursos que podem ser utilizados pela fauna. Assim, havendo recursos, a fauna pode permanecer na área de estudo mantendo sua abundância e diversidade. Insects in Two Bromeliad Species in the West of Santa Catarina, Brazil Abstract. Bromeliads are plants with outstanding characteristic because the disposition of their leaves allowing the accumulation of water between them, creating real ecosystems on the plant and allowing the refuge and development of various invertebrates, it is a diversity that often goes unnoticed. This study aimed to analyze what is the importance of bromeliads as keepers of biodiversity in the Parque Natural Municipal Rio do Peixe, located in the municipality of Joaçaba, center-west of Santa Catarina, southern Brazil (27º 10'22 "S, 51° 30'33 "W). The Natural Park is located in an area of forest ecotone, characterized by a transition between semideciduous forest and Araucaria forest. The study was conducted from January 2009 to January 2010. Throughout the sampling period were found about 168 invertebrates from 48 bromeliads collected, among which the most abundant orders were Hymenoptera (46 specimens) and Coleoptera (36 specimens). When present in an environment, bromeliads increase the number of resources that can be used by wildlife. Thus, with resources, wildlife can remain in the study area maintaining its abundance and diversity.


2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Ricardo Gobato ◽  
Alireza Heidari

An “explosive extratropical cyclone” is an atmospheric phenomenon that occurs when there is a very rapid drop in central atmospheric pressure. This phenomenon, with its characteristic of rapidly lowering the pressure in its interior, generates very intense winds and for this reason it is called explosive cyclone, bomb cyclone. With gusts recorded of 116 km/h, atmospheric phenomenon – “cyclone bomb” (CB) hit southern Brazil on June 30, the beginning of winter 2020, causing destruction in its influence over. One of the cities most affected was Chapecó, west of the state of Santa Catarina. The satellite images show that the CB generated a low pressure (976 mbar) inside it, generating two atmospheric currents that moved at high speed. In a northwest-southeast direction, Bolivia and Paraguay, crossing the states of Parana and Santa Catarina, and this draft that hit the south of Brazil, which caused the destruction of the affected states.  Another moving to Argentina, southwest-northeast direction, due to high area of high pressure (1022 mbar). Both enhanced the phenomenon.


Mycorrhiza ◽  
2000 ◽  
Vol 10 (3) ◽  
pp. 131-136 ◽  
Author(s):  
Ana Cristina S. Andrade ◽  
Maike H. Queiroz ◽  
Ricardo Alberto L. Hermes ◽  
Vetúria L. Oliveira

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