scholarly journals Bryophytes from some Caatinga areas in the state of Bahia (Brazil)

1998 ◽  
Vol 14 (1) ◽  
pp. 69-75
Author(s):  
Cid José Passos Bastos ◽  
Belén Albertos ◽  
Silvana Brito Vilas Bôas
Keyword(s):  
Characteristic Feature ◽  
Growth Form ◽  
The State ◽  
Vegetation Types ◽  
Dry Period ◽  
Moss Species ◽  
Number Of Species ◽  
Bryum Argenteum ◽  
Caatinga Vegetation ◽  
Hygrophilous Species

The caatinga is a deciduous and xerophilous vegetation that covers large areas in Brazil. An irregular rainfall with a marked dry period is a characteristic feature. This paper represents the first contribution to the knowledge of the bryoflora from caatinga vegetation in the State of Bahia. The survey was carried out in several areas from Bahia in which eigthteen species of bryophytes were found (15 mosses and 3 liverworts). The bryoflora from caatinga is composed mainly of generalists and xerophilous taxa, but even some hygrophilous species can be found. A number of species including Hyophiladelphus agrarius, Hyophila involuta, Calymperes palisotii ssp. richardii, Bryum argenteum, Entodontopsis leucostega, Octoblepharum albidum, Frullania ericoides also occur in other vegetation types. However, there are a number of species restricted to this type of vegetation, such as Helicophyllum torquatum and Riccia vitalii, at least in Bahia. Most moss species were acrocarpous with erect and short (short-turf) growth-form, whereas the foliose hepaticae were of incubous, and thallose forms.

scholarly journals Myxomycetes, state of Ceará, northeastern Brazil

Check List ◽  
2010 ◽  
Vol 6 (4) ◽  
pp. 555 ◽  
Author(s):  
Maria Helena Alves ◽  
Antônia Aurelice Aurélio Costa ◽  
Laise De Holanda Cavalcanti
Keyword(s):  
New Records ◽  
Vegetation Type ◽  
The State ◽  
Northeastern Brazil ◽  
Forest Environment ◽  
Humid Forest ◽  
Number Of Species ◽  
Caatinga Vegetation ◽  
Cerrado Savanna ◽  
Deciduous Shrub

Thirty four genera and 215 species of Myxomycetes are present in northeastern Brazil, covering 83 % of families, all subclasses and orders recognized for these microorganisms. Ceará, with an area of 148,825,602 km2, is one of the least explored of the nine states in this region of the country, with records of 27 species, distributed across 13 genera, occurring in a humid forest environment of the southern mesoregion. The dominant vegetation type is the Caatinga (dry, tree-shrub deciduous vegetation), with patches of Cerrado (savanna-like vegetation), Carrasco (montane deciduous shrub vegetation) and fragments of Pluvio-nebular Tropical Subperennial Forest and Pluvial Tropical Subdeciduous Forest. In order to better document the diversity of myxomycetes in that state, specimens were collected from the field between 2002-2007 in Ceará’s northern and northwestern mesoregions. The specimens obtained were deposited at the UFP Herbarium. Eighteen species were recorded, occurring in the Caatinga vegetation and the records of Comatricha, Craterium and Metatrichia increase the number of genera which comprise Ceará’s myxobiota to 16. Arcyria denudata, Craterium leucocephalum, Badhamia panicea, B. melanospora, Didymium intermedium, Metatrichia vesparia, Physarum rigidum and P. tenerum are new records for Ceará, increasing the number of species known to occur in the state to 37.

scholarly journals Melastomataceae from the “Parque Estadual do Guartelá”, Tibagi, Paraná, Brazil: species list and field guide

Check List ◽  
2014 ◽  
Vol 10 (6) ◽  
pp. 1316 ◽  
Author(s):  
Fabiano Rodrigo da Maia ◽  
Renato Goldenberg
Keyword(s):  
Small Area ◽  
The State ◽  
Vegetation Types ◽  
Conservation Unit ◽  
Species List ◽  
Southern Limit ◽  
Field Guide ◽  
Cerrado Biome ◽  
Number Of Species ◽  
The Family

We studied an area with “Cerrado” associated to other vegetation types at the “Parque Estadual do Guartelá”, Tibagi, in the state of Paraná, Brazil. Herein, we have a list with all species of Melastomataceae recorded in the area with an illustrated guide including all of them. Despite the small area of this Conservation Unit, the park hosts a large number of species (36), in the following genera: Acisanthera, Chaetostoma, Lavoisiera, Leandra, Miconia, Tibouchina and Trembleya. The region where the park is located is considered the southern limit of the “Cerrado” biome, and also the limit of distribution of many Melastomataceae species. The distribution of the Melastomataceae species along the different vegetation types in the PEG seems to be a pattern for the family in general, registered also for other areas of “Cerrado” in Brazil.

scholarly journals Bats (Mammalia, Chiroptera) from a bamboo-dominated forest in the southwestern Brazilian Amazon, with the first records of Glyphonycteris sylvestris Thomas, 1896 and Phylloderma stenops Peters, 1865 from Acre state

Check List ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 311-321
Author(s):  
Rair Sousa Verde ◽  
Sidney Ferreira Oliveira ◽  
Andressa Oliveira Meneses ◽  
Felipe Gonçalves ◽  
Luana Alencar ◽  
...  
Keyword(s):  
Brazilian Amazon ◽  
Geographic Range ◽  
The State ◽  
Number Of Species ◽  
First Time

There are only a few published bat surveys from the southwestern Brazilian Amazon, but recent studies have reported additional bats species in the region. We provide the first list of bat species from Floresta Estadual do Antimary (Antimary State Forest) and record for the first time Glyphonycteris sylvestris Thomas, 1896 and Phylloderma stenops Peters, 1865 in the state of Acre, increasing to 64 the number of species known from this state. Our survey enlarges the known geographic range of G. sylvestris in Brazilian territory and improves the inventory of bat species in a poorly sampled region of the Amazon. 

scholarly journals Xerodrymionorientale mediterraneum gorges of the Karatag river

2021 ◽  
Vol 38 ◽  
pp. 00022
Author(s):  
Sayfiddin Khairiddin Davlatov ◽  
Rakhmatullo Boboevich Sattorov ◽  
Jamoliddin Murotalievich Bobokalonov
Keyword(s):  
Characteristic Feature ◽  
High Altitude ◽  
Genetic Resources ◽  
Plant Species ◽  
Field Research ◽  
The State ◽  
Pistacia Vera ◽  
Wild Fruit ◽  
Middle Mountains ◽  
First Time

The Karatag gorge is one of the natural areas where valuable genetic resources (wild, fruit and many valuable species) are preserved. A characteristic feature of the region is the richness of the diversity of flora and vegetation, where the main formations of Tajik vegetation are noted (maple, hazel, almond, frame, juniper). The article summarizes the results of the authors’ field research on the study of the state of xerophilic forests in the Karatag gorge. For the first time, the authors cite original materials on the phytocenology of all formations of this type of composition. According to the results of our research, the Shibleak communities in the study area are distributed in high-altitude belts from low-hilly 600–800 m to middle mountains 800–1800, 2000 m. The main formations of this type in the study area are: Acer regelii, Crataegus pontica, Celtis caucasic, Pistacia vera, Amygdalis bucharica, Ampelopsis vitifolia, Atraphaxis pyrifolia. As a result of the study, 340 plant species, 6 formations and more than 25 vegetation associations were identified in the composition of the flora of this type of the study area.

scholarly journals Mapeamento da desertificação da Região de Desenvolvimento Sertão do São Francisco com base na cobertura vegetal e nas classes de solos (Desertification mapping of “Sertão” San Francisco Development Region based on the vegetation and the soil classes)

2015 ◽  
Vol 8 ◽  
pp. 510
Author(s):  
Iêdo Bezerra Sá ◽  
Tony Jarbas Ferreira Cunha ◽  
Tatiana Ayako Taura ◽  
Marcos Antônio Drumond
Keyword(s):  
San Francisco ◽  
Arid Region ◽  
The State ◽  
Soil Mapping ◽  
Semiarid Region ◽  
Environmental Services ◽  
Vegetation Types ◽  
Development Region ◽  
Semi Arid Region ◽  
Semi Arid

Na região Semiárida do Estado de Pernambuco existe grande diversidade na paisagem natural, onde a vegetação, os solos e o clima geram uma multiplicidade de situações que concorrem para formação de diferentes ecossistemas e habitats com grande potencial ecológico e ambiental. Nesta região, a vegetação é caracterizada por diferentes fisionomias, variando de áreas com formações arbustivas, com cobertura do solo muito escassa e quase ausente, a formações arbóreas com níveis de cobertura bastante densas. De modo análogo, nesta região ocorre uma grande variedade de solos, que por suas características, manejo e situação no relevo podem potencializar os processos erosivos, determinantes no desencadeamento da desertificação. Considerando as interrelações destas duas variáveis ambientais, este trabalho tem o objetivo de realizar um diagnóstico das áreas susceptíveis à desertificação da Região de Desenvolvimento Sertão do São Francisco - RDSF, tendo como base o cruzamento das informações da cobertura vegetal natural e das classes de solos. Para tanto, foram utilizados o recorte do mapeamento da cobertura vegetal e uso do solo e o recorte do mapeamento de solos da RDSF. Foram estabelecidos critérios para susceptibilidade da cobertura vegetal, assim como para as classes de solos presentes na área. Executou-se a intersecção destas duas bases de informação para o perfil da sensibilidade à desertificação. Os resultados mostram que a RDSF tem os seguintes valores das áreas em processos de desertificação: 1,77% na classe ausente ou fraca; 74,74% na classe moderada; 0,35% na classe acentuada e 23,14% na classe severa. Deste modo, observa-se que aproximadamente 98% da RDSF encontram-se na situação de sensibilidade à desertificação em que predominam as classes de Moderada a Severa. In the semiarid region of the state of Pernambuco there are plenty of biophysics where vegetation, climate, soils, and the various faces and the relationships and processes that take place among them generate the formation of different ecosystems and habitats with great potential ecological and environmental. There are a range of vegetation types, ranging from shrubby coverage areas up to very sparse and mostly absent vegetation areas, which demonstrated high desertification process occurring. Similarly, a variety of soils that is in the region along with vegetation makes this a region of great variation from the viewpoint of environmental supply. This article deals with the realization of a diagnosis of environmental sensitivity to desertification of São Francisco Development Region seeking spatialize the different situations in which the environment fulfills a greater or lesser extent, its role as provider of environmental services. For this, we used the cutting mapping of existing vegetation and soil mapping of the state and the established criteria, as well as edaphic vegetation cover, featuring the susceptibility to degradation and performed the intersection of these two bases of information to profile the sensitivity to desertification. The results show that São Francisco Development Region has the following values of areas undergoing desertification: 1.77% in weak class; 74.74% in the moderate class; 0.35% in sharp class, and 23.14% in severe class. Keywords: desertification, São Francisco, Semi-arid region, soils.   

scholarly journals Interpretaciones sobre la lluvia de polen en la región de San Luis Potosí, México

2017 ◽  
pp. 53 ◽  
Author(s):  
Socorro Lozano-García
Keyword(s):  
Cluster Analysis ◽  
Soil Samples ◽  
The State ◽  
Oak Forest ◽  
Vegetation Types ◽  
High Pollen ◽  
Clear Separation ◽  
San Luis ◽  
San Luis Potosi ◽  
San Luis Potosí

In a region located mainly in the State of San Luis Potosí, México, floristic and soil samples were taken, in order to obtain palynological spectra. The comparison between the floristic results and the palynological spectra corresponding to eight types of vegetation, shows that there are taxa such as Pinus and Quercus with a high pollen representation (RP) in most of the spectra. There were some, such as the grasses that exhibited a normal RP. Also, low values of RP were detected in some taxa typical of sucrubland. A cluster analysis was applied to forty-seven soil samples and yielded a clear separation between a) oak forest and chaparral, and b) other vegetation types.

Techniques for collecting and breeding diptera muscomorpha in the laboratory

2021 ◽  
Vol 6 (2) ◽  
pp. 87-88
Author(s):  
Carlos Henrique Marchiori
Keyword(s):  
Minas Gerais ◽  
The State ◽  
Biological Relevance ◽  
Caatinga Vegetation

The Caatinga is the only biome restricted to the Brazilian territory, occupying basically the Region Northeast, with some areas in the state of Minas Gerais. Caatinga vegetation does not have green exuberance rainforests and the dry aspect of the physiognomies dominated by cacti and shrubs suggests low diversification of fauna and flora. To unravel your wealth you need a look more attentive, more open. So she reveals her great biodiversity, its biological relevance and its peculiar beauty. This study aimed to make a bibliographic summary of parasitoids of Caatinga, as well as their characteristics, main groups and species and studies performed.

New species of Arthoniales from NE Brazil

2013 ◽  
Vol 45 (5) ◽  
pp. 611-617 ◽  
Author(s):  
Aline Anjos MENEZES ◽  
Edvaneide Leandro de LIMA ◽  
Amanda Barreto XAVIER-LEITE ◽  
Leonor Costa MAIA ◽  
André APTROOT ◽  
...  
Keyword(s):  
New Species ◽  
National Park ◽  
The State ◽  
The Third ◽  
Caatinga Vegetation ◽  
First Impression ◽  
First Time ◽  
Chapada Do Araripe

AbstractThe new species Coniarthonia aurata E. L. Lima, M. Cáceres & Aptroot, Cresponea endosulphurea A. A. Menezes, M. Cáceres & Aptroot, Cryptothecia macrocephala E. L. Lima, M. Cáceres & Aptroot, and Synarthonia sarcographoides Aptroot, A. A. Menezes, E. L. Lima & M. Cáceres are described from Caatinga vegetation in NE Brazil. They were found in the Chapada do Araripe in the state of Ceará and/or the Vale do Catimbau National Park in Pernambuco. Coniarthonia aurata has weakly organized, semiglobose apothecia with golden crystals, and on first impression looks like the anamorph of a Tylophoron. Cresponea endosulphurea has a pigment of the group of xantholepinones in the thallus. It is the first time that a substance from this group is reported from the Arthoniales. Cryptothecia macrocephala has strongly macrocephalic ascospores and contains psoromic acid in the thallus. Synarthonia sarcographoides is only the third species in this rarely found genus. It is characterized within the genus by muriform, brown ascospores, but it is assigned with hesitation to the genus. It is locally quite common.

Partitioning of Food and Niche Characteristics of Coexisting Accipiter During Breeding

The Auk ◽  
1984 ◽  
Vol 101 (4) ◽  
pp. 761-779 ◽  
Author(s):  
Richard T. Reynolds ◽  
E. Charles Meslow
Keyword(s):  
Prey Size ◽  
The State ◽  
Total Density ◽  
Frequency Of Occurrence ◽  
Number Of Species ◽  
Accipiter Striatus ◽  
Shrub Canopy ◽  
Northern Goshawks ◽  
Nesting Season ◽  
Cooper's Hawks

AbstractThe abundance of resources and their use by Accipiter in two areas within Oregon from 1969 through 1974 are presented. In the coastal mountains of northwestern Oregon only Sharp-shinned Hawks (Accipiter striatus) and Cooper's Hawks (A. cooperii) nested. In the remainder of the state, A. striatus, A. cooperii, and Northern Goshawks (A. gentilis) were syntopic during the nesting season. The number of species and the total density of birds in eastern Oregon were about one-half those in northwestern Oregon. Mean prey size of A. striatus in northwestern Oregon (12.8 g) was significantly smaller than that of the same species in eastern Oregon (28.4 g). Accipiter striatus diets in both areas were composed almost entirely of birds (<5% mammals). Mean prey size of A. cooperii in both areas was nearly the same (134.7 g vs. 136.3 g) and was significantly larger than mean prey size of A. striatus. The frequency of occurrence and the size of prey taxa in A. cooperii diets, however, varied between areas: 74% birds (x̄ = 79.2 g) and 25% mammals (x̄ = 296.4 g) in northwestern Oregon versus 47% birds (x̄ = 123.7 g) and 53% mammals (x̄ = 147.5 g) in eastern Oregon. Mean prey size of A. gentilis in eastern Oregon (306.6 g) was significantly larger than that of A. cooperii and consisted of 55% birds (x̄ = 195.5 g) and 45% mammals (x̄ = 445.2 g). An analysis of prey sizes, prey taxa, and foraging heights indicated that, in general, food was partitioned in both areas primarily according to prey size. In eastern Oregon, however, where A. cooperii and A. gentilis overlapped broadly in prey size, these species tended to take different prey taxa. Both A. cooperii and A. gentilis foraged primarily in the lower zones (ground-shrub and shrub-canopy), whereas A. striatus foraged in the upper canopy.

Hollow-using vertebrate fauna of Tasmania: distribution, hollow requirements and conservation status

2008 ◽  
Vol 56 (5) ◽  
pp. 323 ◽  
Author(s):  
Amelia J. Koch ◽  
Sarah A. Munks ◽  
Eric J. Woehler
Keyword(s):  
Conservation Status ◽  
National Level ◽  
Bird Species ◽  
The State ◽  
Dry Forest ◽  
Considerable Proportion ◽  
Vertebrate Fauna ◽  
Number Of Species ◽  
Arboreal Marsupials ◽  
Regional Forest

In Tasmania, a considerable proportion of the forested landscape is available for land clearance and production forestry, which has and will continue to result in a decline in hollow availability unless managed appropriately. All hollow-using species are listed as having priority status under the Tasmanian Regional Forest Agreement. To ensure the habitat for hollow-using fauna is managed effectively, we first have to understand the requirements of the species involved. This paper is a review of the distribution, hollow requirements and conservation status of the five species of arboreal marsupials, eight species of bats and 29 bird species that use hollows in Tasmania. The number of species that use hollows is lower than in many other areas of Australia, but these species represent a large proportion of the vertebrate fauna of Tasmania. Three of these species and nine subspecies are endemic to Tasmania and seven are exotic. Four bird species are listed as Threatened at the state and/or national level. Twenty-five of Tasmania’s hollow-using species are capable of using small hollows, 14 can use medium-sized hollows and three bird species are limited to using large hollows. Current records indicate that the highest diversity of hollow-using species is associated with dry forest areas.

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