scholarly journals Richness and abundance of anurans (amphibia) in pasture and secondary forest areas near to Porto Velho (Rondonia, Brazil)

2016 ◽  
Vol 8 (1) ◽  
pp. 7
Author(s):  
MILENE DA ROCHA M. ◽  
CRISTIANO RIBEIRO F. ◽  
RANIERE GARCEZ C.S.
Keyword(s):  
Secondary Forest ◽  
Abundant Species ◽  
Secondary Forests ◽  
Lack Of Information ◽  
Environmental Integrity ◽  
Pasture Area ◽  
Tools And Techniques ◽  
Number Of Individuals ◽  
The City ◽  
Porto Velho

The Amazon has a great biodiversity, however in this regions some locations still without no research, showing the need for studies in this localities. The lack of information about the diversity of frogs and the speed of change in the landscape that have been taking place on the planet, demonstrates the urgent need to preserve the remaining resources. In this adverse scenario, live frogs that are sensitive to changes in natural forest areas, and are recognized as Bioindicator of environmental integrity. The present study had scoped to do a survey of the anuran species in a country area, near to the city of Porto Velho (RO). This land, is formed by two separate areas, one classified as secondary forests and the other as pasture area. The sampling was carried out from January to may 2012, using tools and techniques for catch in the night delimited by time, pitfall traps and frogs occasional meetings Were captured 63 specimens of Anurans, distributed in six families, where the richest in species were the Leptodactylidae (n = 6), Hylidae (n = 5), Bufonidae (n = 4), Microhylidae (n = 2), Brachycephalidae (n = 2) and Aromobatidae (n = 2), totaling 21 species identified.The most abundant species were the Leptodactylus chaquensis (n = 12) and Leptodactylus andreae (n = 8). The pasture area exhibited the greatest number of individuals captured with 65.07% of all frogs collected.

scholarly journals Diversity of the Arthropod edaphic fauna in preserved and managed with pasture areas in Teresina-Piauí-Brazil

2013 ◽  
Vol 73 (3) ◽  
pp. 483-489 ◽  
Author(s):  
RA. Luz ◽  
LS. Fontes ◽  
SRS. Cardoso ◽  
ÉFB. Lima
Keyword(s):  
Diversity Index ◽  
Diversity Indices ◽  
Similarity Coefficient ◽  
The State ◽  
Lack Of Information ◽  
Composition And Structure ◽  
Arthropod Fauna ◽  
Pasture Area ◽  
Number Of Individuals ◽  
The City

The soil fauna plays an important function over the processes of organic matter decomposition, nutrient cycling, ground aeration and fertility. Thus, studies on the composition and structure of such communities are important, considering moreover the lack of information in different regions of Brazil and mainly related to the state of Piauí. This study aimed to evaluate the density and diversity of the soil arthropod fauna in a Cerrado area in preservation conditions and in a pasture area. Both are situated in the city of Teresina, capital of the state of Piauí. Pitfall traps were used for sampling. Five stations with four traps were placed in each area. The traps were constituted by a 500 mL plastic cup containing a preserving solution made with 70% alcohol and 40% formalin. The traps were weekly changed by occasion of the collections. Eight samples were performed in the period between March and April 2007. The results were evaluated using the following variables: number of orders, number of families, total of species and total number of individuals. Evaluation of the Diversity Index and Similarity Coefficient were also performed. As result, the variables and diversity indices were slightly higher in the preserved area. However, the similarity coefficient showed only 10% similarity between both areas.

scholarly journals Influencia de microhábitats en el desempeño de especies herbáceas en áreas de bosque maduro y secundario en la región semiárida de Brasil

2015 ◽  
Vol 63 (2) ◽  
pp. 357 ◽  
Author(s):  
Juliana Ramos de Andrade ◽  
Kleber Andrade da Silva ◽  
Josiene Maria Fraga dos Santos ◽  
Danielle Melo dos Santos ◽  
Thiago Pereira Guerra ◽  
...  
Keyword(s):  
Secondary Forest ◽  
Abundant Species ◽  
Fruit Production ◽  
Semiarid Region ◽  
Mature Forest ◽  
Disturbed Areas ◽  
Brazilian Semiarid ◽  
Set Up ◽  
Number Of Individuals ◽  
Biological Group

<p>The conditions for plant establishment in mature forest are different from those found in disturbed areas. In dry environments, the herbaceous cover is the most important in the recolonization of deforested areas. It can, therefore, act as an ideal biological group for assessing how changes in habitat heterogeneity affect the resilience of dry forests. The aim of this research was to evaluate whether natural regeneration of the herbaceous stratum differed between areas of mature and secondary forest of Caatinga and to describe this process. The study took place in the Brazilian semiarid region during the rainy season 2011 (January to August), where fifty 1m² plots were set up, 25 allocated to the microhabitat established as “between canopies” and 25 to the microhabitat “under the canopy”. The herbaceous species selected for the study were <em>Delilia biflora</em> (Asteraceae), <em>Gomphrena vaga</em> (Amaranthaceae) and <em>Pseudabutilon spicatum</em> (Malvaceae), abundant species occurring in both areas. All individuals from the selected populations were counted, marked with sequential numbers, and the height of the stem was measured. Differences between areas, and in size and survival between microhabitats, were found only for the first two species. Fruit production was higher in the mature forest for the three species. The study concluded that: 1. The effect of the microhabitats “between canopies” and “under the canopy” in mature and secondary forest areas depends on the species considered; 2. Populations sensitive to light intensity differ in number of individuals, height and fruit production; and 3. The resilience of anthropogenic areas in semiarid environments can be characterized by the presence of spatial heterogeneity with regard to the emergence and survival of herbaceous seedlings, suggesting that the regeneration of disturbed areas may occur in patches. </p>

scholarly journals Results of Study on Vegetation Diversity at Muong Nhe Nature Reserve, Dien Bien Province

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Vu Anh Tai ◽  
Dinh Thi Hoa
Keyword(s):  
Human Activities ◽  
Nature Reserve ◽  
Deciduous Forest ◽  
Secondary Forest ◽  
Abundant Species ◽  
Tropical Deciduous Forest ◽  
Secondary Forests ◽  
Tropical Zone ◽  
Fast Growing ◽  
Closed Forest

The vegetation at Muong Nhe nature reserve has been described in 5 types: Tropical evergreen moist monsoon closed forest (only secondary sub-types formed by human activities including tropical evergreen moist monsoon secondary forests after selected logging, tropical evergreen moist monsoon secondary forests formed on abandoned upland fields, tropical evergreen secondary scrubs and grasslands); Tropical semi-evergreen semi-dry monsoon closed forest (only secondary sub-type formed by human activities); Sub-tropical evergreen moist monsoon closed forest (including secondary sub-types formed by human activities including sub-tropical evergreen moist monsoon secondary forest and sub-tropical evergreen secondary scrubs); Sub-tropical evergreen moist monsoon broad-leaved mixed with conifers forest; Sub-tropical semi-dry monsoon deciduous forest (only secondary sub-types formed by human activities including sub-tropical semi-dry monsoon deciduous secondary forest after selected logging, sub-tropical semi-dry monsoon deciduous secondary forest formed on abandoned upland fields, sub-tropical semi-dry secondary scrubs and grasslands) and cultivated communities. The results showed that closed forest is located at sub-tropical zone only. Based on species existed in each forest sub-type or community, the abundant species in tropical zone are fast-growing and photophilic plants while the abundant species in sub-tropical zone include both  fast-growing plants and typical sub-tropical plants with monsoon moi climate or monsoon semi-dry climate. In the winter, tropical semi-evergreen forest and sub-tropical deciduous forest forms to North-Western regionalism. The non fast-growing and photophilic species are expected to be most abundant in the future based on currently vegetation succession indication, and there will be more and more closed forests in the near future at Muong Nhe nature reserve.  

Perfil da Linguagem em Pacientes com Acidente Vascular Encefálico Atendidos pelo Serviço Assistencial Domiciliar Multidisciplinar em Porto Velho – Rondônia

REVISTA FIMCA ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 34-42
Author(s):  
Amanda Leite Silva Cabral ◽  
Flávia Peres Lima ◽  
Jéssica Iara Costa Bessa Paraguassú
Keyword(s):  
Communication Skills ◽  
Oral Language ◽  
Care Service ◽  
Oral Communication ◽  
Etiologic Factor ◽  
Test Protocol ◽  
Cross Sectional ◽  
One Year ◽  
The City ◽  
Porto Velho

Introdução: A afasia é uma das sequelas mais importantes que ocorrem após lesão cerebral de acidente vascular encefálico (AVE). Objetivos: Identificar o perfil da linguagem oral de pacientes com AVE, atendidos pelo Serviço Assistencial Multidisciplinar Domiciliar (SAMD) na cidade de Porto Velho – RO. Materiais e Métodos: Trata-se de um estudo transversal e quantitativo, realizado na residência dos pacientes que estavam sendo atendidos pelo SAMD. Onde foi utilizado o protocolo de Teste de Reabilitação das Afasias composto inicialmente de um questionário que foi aplicados com os familiares dos pacientes para coletar dados quanto ao AVE e os Testes de Comunicação Oral para avaliar dos pacientes. Resultados: Foram avaliados 11 sujeitos com AVE e oito sujeitos apresentaram afasia emissiva do tipo Broca (100%) com presença de agramatismo e anomia (87,5%), e déficit na organização da comunicação e na memória (100%). Referente à etiologia do AVE, verificou-se que 62,5% dos sujeitos apresentaram etiologia decorrente de hipertensão, com tempo de sequelas com tempo entre um ano menos e a três anos (37,5%). Todos os sujeitos (100%) eram muito falantes antes do AVE, porem 50% continuaram muito falantes após o AVE e os outros 50% se tornaram pouco falantes. Conclusão: Os resultados evidenciam que a maioria dos sujeitos apresentaram afasia emissiva do tipo Broca, em decorrência de Acidente Vascular Encefálico Isquêmico tendo como fator etiológico a hipertensão. Desencadeando alterações de linguagem como anomia e agramatismo, afetando ainda suas habilidades de comunicação como a memória e a organização da linguagem. Introduction: Aphasia is one of the most important sequels that occur after brain injury from stroke. Objectives: To identify the oral language profile of patients with stroke, assisted by the Multidisciplinary Home Care Service (SAMD) in the city of Porto Velho - RO. Materials and Methods: This was a cross-sectional and quantitative study carried out at the residence of the patients who were being treated by the SAMD. Where the Aphasia Rehabilitation Test protocol was used, composed initially of a questionnaire that was applied with the relatives of the patients to collect data regarding the AVE and the Oral Communication Tests to evaluate the patients. Results: Eleven subjects with EVA were evaluated, and eight subjects presented Embryonic Emphasis of Broca type (100%) with presence of agramatism and anomia (87.5%), and deficits in the organization of communication and memory (100%). Regarding the etiology of the AVE, 62.5% of the subjects presented etiology due to hypertension, with sequelae time between one year less and three years (37.5%). All subjects (100%) were very talented before the AVE, but 50% remained very talented after the AVE and the other 50% became less talkative. Conclusion: The results show that most of the subjects presented Embryonic Emphasis of the Broca type, due to Ischemic Stroke, having as etiologic factor hypertension. Unleashing language changes such as anomie and agramatism, still affecting his communication skills as memory and the organization of language.

scholarly journals Do the assemblages of benthic macroinvertebrates in nearshore waters of Western Australia vary among habitat types, zones and seasons?

2005 ◽  
Vol 85 (2) ◽  
pp. 217-232 ◽  
Author(s):  
M.D. Wildsmith ◽  
I.C. Potter ◽  
F.J. Valesini ◽  
M.E. Platell
Keyword(s):  
Species Composition ◽  
Benthic Macroinvertebrates ◽  
Habitat Type ◽  
Abundant Species ◽  
Subtidal Zone ◽  
Habitat Types ◽  
Environmental Characteristics ◽  
Deposit Feeding ◽  
Number Of Individuals

Benthic macroinvertebrates were sampled seasonally in the subtidal and upper and lower swash zones at two sites in each of six nearshore habitat types on the lower west coast of Australia. The habitat types, which differed mainly in the extent of their exposure to wave activity and whether sea grass and/or nearshore reefs were present, had been distinguished quantitatively using values for a suite of seven statistically-selected enduring environmental characteristics (Valesini et al., 2003). The core samples yielded 121 species representing eight phyla, among which the Polychaeta, Malacostraca and Bivalvia were the most speciose classes, contributing ∼38, 23 and 10%, respectively, to the total number of individuals. The total number of species and mean density of macroinvertebrates at the most protected habitat type (1), i.e. 70 and 209·2 individuals 0·1 m−2, respectively, were far greater than in any other habitat type. Habitat type influenced species composition to a greater extent than either zone or season. Furthermore, the extents of the differences among the species compositions of the six habitat types statistically matched the extents of the differences among the values for the suite of enduring environmental characteristics that distinguished each of those habitat types. Overall, the species composition at habitat type 1 was the most distinct, containing five abundant species of polychaetes that were adapted to deposit-feeding in calm waters with high levels of organic material and which were rare in all other habitat types. In contrast, the fauna at the most exposed habitat type was characterized by four crustacean species and a species of bivalve and polychaete, whose mobility and tough external surface facilitated their survival and feeding in turbulent waters. The zonal differences in faunal compositions among habitat types were greatest in the case of the subtidal zone. The faunal compositions differed among zones and seasons only at the most protected habitat type.

scholarly journals Responses of Bat Communities (Mammalia: Chiroptera) to Forest Loss and Habitat Conversion in Southern Cameroon

2021 ◽  
Vol 14 ◽  
pp. 194008292110103
Author(s):  
Patrick Jules Atagana ◽  
Eric Moïse Bakwo Fils ◽  
Sevilor Kekeunou
Keyword(s):  
Secondary Forest ◽  
Biosphere Reserve ◽  
Abundant Species ◽  
Primary Forest ◽  
Habitat Types ◽  
Habitat Transformation ◽  
Significant Difference ◽  
Southern Cameroon ◽  
Habitat Conversion ◽  
Species Specific

We aimed to assess how bats are affected by habitat transformation by comparing bat assemblages in four habitat types: primary forest, secondary forest, cocoa plantations and human habitations in the Dja Biosphere Reserve of southern Cameroon. Bats were sampled in the four habitat types using mist nets. During 126 nights, a total of 413 bats were captured, belonging to four families, 16 genera and 24 species. Ninety three individuals (17 species) were captured in the primary forest, followed by plantations (105 individuals, 14 species), human habitations (159 individuals, 10 species), and secondary forest (55 individuals, eight species). Megaloglossus woermanni was recorded in all the four habitats, and was the most abundant species (105 individuals). The analysis of bat assemblage between habitat types showed a statistically significant difference in species composition. The distribution of the six most abundant species ( Epomops franqueti, Megaloglossus woermanni, Rousettus aegyptiacus, Dohyrina cyclops, Hipposideros cf. caffer and Hipposideros cf. ruber) was influenced by habitat types. Our results suggest that the decrease in species richness observed in disturbed habitats may be due to habitat perturbations of primary forest habitats. Therefore, it is important to examine the effects of habitat conversion at species level, as responses are often species-specific.

scholarly journals Secondary Forests and Agrarian Transitions: Insights from Nepal and Peru

Human Ecology ◽  
2021 ◽  
Author(s):  
Adam Pain ◽  
Kristina Marquardt ◽  
Dil Khatri
Keyword(s):  
Forest Regeneration ◽  
Agricultural Intensification ◽  
Necessary Conditions ◽  
Secondary Forest ◽  
Social Groups ◽  
Agrarian Change ◽  
Secondary Forests ◽  
Land Access ◽  
San Martín

AbstractWe provide an analytical contrast of the dynamics of secondary forest regeneration in Nepal and Peru framed by a set of common themes: land access, boundaries, territories, and rights, seemingly more secure in Nepal than Peru; processes of agrarian change and their consequences for forest-agriculture interactions and the role of secondary forest in the landscape, more marked in Peru, where San Martín is experiencing apparent agricultural intensification, than in Nepal; and finally processes of social differentiation that have consequences for different social groups, livelihood construction and their engagement with trees, common to both countries. These themes address the broader issue of the necessary conditions for secondary forest regeneration and the extent to which the rights and livelihood benefits of those actively managing it are secured.

Organization/business, management, people and complexity – an approach to their integration

2004 ◽  
Vol 23 (2) ◽  
pp. 101-110
Author(s):  
Rexford H. Draman
Keyword(s):  
Quantum Mechanics ◽  
Research And Development ◽  
Bifurcation Point ◽  
Business Management ◽  
Living System ◽  
System Framework ◽  
Business System ◽  
Business Needs ◽  
Tools And Techniques ◽  
Number Of Individuals

Like a growing number of individuals, the author believes that business is facing the same bifurcation point physics was facing before the development of quantum mechanics – trying to fit a Newtonian explanation onto a non-Newtonian problem. Given that perspective business needs a system-based model not more research and development on its Newtonian practices and beliefs. The focus of this paper focuses is on the development of such a framework. This paper draws on science to identify the necessary requirements for a living system and converts that into a three-entity framework. Through the conversion of this living-system framework the necessary requirements for a living business system are identified. With that, an assortment of currently available system-based business tools and techniques that fulfill most of the requirements of a living business system, are introduced. An approach to implementing these tools and techniques as well as remaining open for the incorporation of other systems-based practices is presented.

scholarly journals The Role of Recent (1985–2014) Patterns of Land Abandonment and Environmental Factors in the Establishment and Growth of Secondary Forests in the Iberian Peninsula

Land ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 817
Author(s):  
Marina Palmero-Iniesta ◽  
Josep Maria Espelta ◽  
Mario Padial-Iglesias ◽  
Òscar Gonzàlez-Guerrero ◽  
Lluís Pesquer ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Iberian Peninsula ◽  
Forest Cover ◽  
Secondary Forest ◽  
Forest Growth ◽  
Deciduous Forests ◽  
Secondary Forests ◽  
Study Region ◽  
Leaf Habit ◽  
Forest Establishment

Farmland abandonment has been a widespread land-use change in the Iberian Peninsula since the second half of the 20th century, leading to the establishment of secondary forests across the region. In this study, we aimed to address changes in the recent (1985–2014) emergence patterns of these forests and examine how environmental factors affected their growth by considering differences in leaf-habit types. We used a combination of Landsat-derived land-cover maps and aboveground biomass (AGB) maps from the European Space Agency to assess the secondary forest establishment and growth, respectively, in the study region. We also obtained a set of topographic, climatic and landscape variables from diverse GIS layers and used them for determining changes over time in the environmental drivers of forest establishment and AGB using general linear models. The results highlight that secondary forest cover was still increasing in the Iberian Peninsula at a rate above the European average. Yet, they also indicate a directional change in the emergence of secondary forests towards lower and less steep regions with higher water availability (mean rainfall and SPEI) and less forest cover but are subjected to greater drought events. In addition, these environmental factors differentially affect the growth of forests with different leaf-habit types: i.e., needleleaf secondary forests being less favoured by high temperature and precipitation, and broadleaf deciduous forests being most negatively affected by drought. Finally, these spatial patterns of forest emergence and the contrasting responses of forest leaf-habits to environmental factors explained the major development of broadleaf evergreen compared to broadleaf deciduous forests and, especially, needleleaf secondary forests. These results will improve the knowledge of forest dynamics that have occurred in the Iberian Peninsula in recent decades and provide an essential tool for understanding the potential effects of climate warming on secondary forest growth.

Bewirtschaftung von tropischen Sekundärwäldern

2002 ◽  
Vol 46 (1) ◽  
Author(s):  
Dietrich Schmidt-Vogt
Keyword(s):  
Land Use ◽  
Forest Cover ◽  
Stand Structure ◽  
Secondary Forest ◽  
Secondary Forests ◽  
Tropical Asia ◽  
Land Use Systems ◽  
The Future ◽  
The Tropics ◽  
Primary Forests

AbstractManagement of secondary tropical forests: a new perspective for sustainable use of forests in Asia. The decline of primary forests in the tropics is leading to a reassessment of the role secondary forests might play within the context of tropical forest management. Recent research has shown that secondary forests in the tropics can be both rich in species and complex in terms of stand structure. There is, moreover, a growing recognition of the importance of secondary forests for traditional subsistence economies in the tropics and of their economic potential for land use systems in the future. Management of secondary forests in Asia as an alternative to the extraction of timber from primary forests but also as one among other options to intensify traditional land use systems has a potential for the future especially because of the existence of vast tracts of valuable secondary forest cover, and because of the store of traditional knowledge that can still be found in tropical Asia.

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