Contrasting effects of fire on populations of two small rodent species in fragments of Atlantic Forest in Brazil

2004 ◽  
Vol 20 (2) ◽  
pp. 225-228 ◽  
Author(s):  
Marcos de Souza Lima Figueiredo ◽  
Fernando Antonio dos Santos Fernandez
Keyword(s):  
Atlantic Forest ◽  
Feedback System ◽  
Rodent Species ◽  
Primary Forest ◽  
Small Rodent ◽  
Forest Species ◽  
The Core ◽  
Higher Temperature ◽  
Disturbed Habitats

Habitat fragmentation causes a sharp increase in the forested area affected by edge effects (Murcia 1995). Compared with the core of the forest, edges present higher litterfall rates, air and soil humidity reduction, higher temperature and increased wind incidence (Bierregaard et al. 1992, Didham & Lawton 1999, Laurance et al. 1998, Matlack 1993). These features of edges may increase the probability of fire occurrence, especially if the surrounding vegetation is composed of grasses (D'Antonio & Vitousek 1992, Freifelder et al. 1998). After a fire, the damaged edge will grow substantial amounts of herbaceous vegetation, extending the inflammable area into the forest, and thereby creating a positive feedback system of fire susceptibility and intensity (Cochrane & Schulze 1999, Cochrane et al. 1999). Fires may affect the structure and composition of the vegetation (Cochrane & Schulze 1999, Didham & Lawton 1999, Sanaiotti & Magnusson 1995), favouring, in the long-term, the dominance of the community by species characteristic of disturbed habitats and making the habitat unsuitable to primary forest species (Malcolm 1994, Possingham et al. 1994). Unfortunately, there are few studies on the effects of fires on neotropical small-mammal populations (Borchert & Hansen 1983, Ojeda 1989, Vieira & Marinho-Filho 1998). The objective of this study was to analyse the influence of a fire on populations of two rodent species, Akodon cursor (Winge) and Oecomys concolor (Wagner) in two fragments of Atlantic Forest in Brazil.

Russia’s Development Strategy: Guidelines and Restrictions

2008 ◽  
pp. 119-130 ◽  
Author(s):  
V. Senchagov
Keyword(s):  
Economic Development ◽  
Development Strategy ◽  
Conceptual Basis ◽  
The Core ◽  
Economic Development Strategy ◽  
Socio Economic Development ◽  
Rates Of Growth

The core of Russia’s long-term socio-economic development strategy is represented by its conceptual basis. Having considered debating points about the essence and priority of the strategy, the author analyzes the logic and stages of its development as well as possibilities, restrictions and risks of high GDP rates of growth.

scholarly journals MICRONUTRIENT CONTENTS IN THE PROFILE OF A RECOVERED SOIL WITH SEWAGE SLUDGE AND NATIVE SPECIES OF ATLANTIC FOREST

FLORESTA ◽  
2019 ◽  
Vol 49 (3) ◽  
pp. 485
Author(s):  
Lívia Mara Lima Goulart ◽  
Marianne Fidalgo de Faria ◽  
Grasiela Spada ◽  
Thiago Tássio de Souza Silva ◽  
Iraê Amaral Guerrini
Keyword(s):  
Sewage Sludge ◽  
Atlantic Forest ◽  
Soil Profile ◽  
Native Species ◽  
Control Treatment ◽  
Mineral Fertilization ◽  
Promising Alternative ◽  
Final Destination ◽  
Potassium Supplementation

The use of sewage sludge in agriculture and recovery of degraded areas has been shown as a promising alternative for its final destination. Studies on micronutrient levels after sludge application are necessary to avoid soil contamination at toxic levels. The objective of this work was to verify the micronutrient contents in the soil profile and pH, up to one-meter-deep, nine years after the application of sewage sludge and planting of native species of the Atlantic Forest. The experiment was implemented in a degraded Quartzeneic Neosol and conducted in randomized blocks with four replicates and eight treatments, consisting of six doses of sewage sludge (0, 2.5, 5, 10, 15 and 20 Mg ha-1, with supplementation of potassium due to low concentration in the residue), besides the control treatment, mineral fertilization and only potassium supplementation. After nine years, the contents of all micronutrients evaluated presented a significant response to the application of the treatments, and the application of sewage sludge provided an increase in their contents. Soil pH remained stable at sites receiving mineral fertilization and potassium supplementation. Only manganese and zinc showed mobility in the soil profile. The application of sewage sludge in degraded soil increases the micronutrient content and decreases its movement in the soil profile, and the application of the maximum dose of the residue does not provide toxic levels of these elements in the soil in the long term.

Semantic Desktop for the End-UserSemantic Desktop für Anwender

i-com ◽  
2009 ◽  
Vol 8 (3) ◽  
pp. 25-32 ◽  
Author(s):  
Gunnar Aastrand Grimnes ◽  
Benjamin Adrian ◽  
Sven Schwarz ◽  
Heiko Maus ◽  
Kinga Schumacher ◽  
...  
Keyword(s):  
Knowledge Management ◽  
Knowledge Work ◽  
Personal Knowledge ◽  
Term Study ◽  
The Core ◽  
Personal Knowledge Management ◽  
Long Term Study ◽  
Core Components

AbstractThis article describes the Semantic Desktop. We give insights into the core services that aim to improve personal knowledge management on the desktop. We describe these core components of our Semantic Desktop system and give evaluation results. Results of a long-term study reveal effects of using the Semantic Desktop on personal knowledge work.

Factors affecting the use of space by two rodent species in Brazilian Atlantic forest

Mammalia ◽  
2004 ◽  
Vol 68 (2-3) ◽  
Author(s):  
Helena Godoy Bergallo ◽  
William E. Magnusson
Keyword(s):  
Home Range ◽  
Atlantic Forest ◽  
Rodent Species ◽  
Maximum Distance ◽  
Brazilian Atlantic Forest ◽  
Factors Affecting ◽  
Use Of Space

The main purpose of this study was to determine whether the maximum distance traveled and home range area of

scholarly journals Intercommunity interactions and killings in central chimpanzees (Pan troglodytes troglodytes) from Loango National Park, Gabon

Primates ◽  
2021 ◽  
Author(s):  
Laura Martínez-Íñigo ◽  
Pauline Baas ◽  
Harmonie Klein ◽  
Simone Pika ◽  
Tobias Deschner
Keyword(s):  
Pan Troglodytes ◽  
National Park ◽  
Camera Traps ◽  
Encounter Rate ◽  
Visual Contact ◽  
Intergroup Interactions ◽  
Killing Rate ◽  
The Core ◽  
Pan Troglodytes Troglodytes

AbstractIntercommunity competition in chimpanzees (Pan troglodytes) has been widely studied in eastern (P. t. schweinfurthii) and western (P. t. verus) communities. Both subspecies show hostility towards neighboring communities but differ in rates of lethal attacks and female involvement. However, relatively little is known about the territorial behavior of the two other subspecies, central (P. t. troglodytes) and Nigeria-Cameroon chimpanzees (P. t. ellioti). Here, we present the first insights into intercommunity interactions of individuals of a community of central chimpanzees living in the Loango National Park in Gabon. The presence of individuals of neighboring communities in the Rekambo home range was assessed using 27 camera traps. Information was compiled on intergroup interactions recorded before (2005–2016) and after (January 2017–June 2019) the habituation of the community. Individuals from neighboring communities entered the core area, where nine out of 16 recorded intercommunity encounters occurred. Males were the main participants in territorial patrols and intercommunity aggressions. Females were part of all six territorial patrols recorded and dependent offspring participated in five patrols. Females were involved in intercommunity aggression in five out of twelve recorded encounters in which there was visual contact between communities. While the intercommunity encounter rate was lower than that reported across most other long-term chimpanzee sites, the annual intercommunity killing rate was among the highest. These results suggest that the frequency of lethal attacks at Loango is comparable to that reported for the eastern subspecies. In contrast, female involvement in intercommunity interactions mirrors that of the western subspecies.

Atlantic Forest recovery after long-term eucalyptus plantations: The role of zoochoric and shade-tolerant tree species on carbon stock

2022 ◽  
Vol 503 ◽  
pp. 119789
Author(s):  
Alex Josélio Pires Coelho ◽  
Pedro Manuel Villa ◽  
Fabio Antônio Ribeiro Matos ◽  
Gustavo Heringer ◽  
Marcelo Leandro Bueno ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Tree Species ◽  
Carbon Stock ◽  
Forest Recovery ◽  
Eucalyptus Plantations

scholarly journals Accountability reporting objectives of Māori organizations

2018 ◽  
Vol 30 (4) ◽  
pp. 433-443 ◽  
Author(s):  
Russell Craig ◽  
Rawiri Taonui ◽  
Susan Wild ◽  
Lũcia Lima Rodrigues
Keyword(s):  
New Zealand ◽  
Design Methodology ◽  
Indigenous Communities ◽  
Core Values ◽  
Annual Reports ◽  
Content Type ◽  
Cultural Activities ◽  
The Core ◽  
Regional Associations

Purpose This paper aims to highlight the accountability reporting objectives of four Māori-controlled organizations. The examples cited reflect the core values of the indigenous Māori people of New Zealand (Aotearoa) and help demonstrate how these values are manifest in the accountability reporting of Māori-controlled organizations. Design/methodology/approach Narrative sections of ten annual reports of two small and two large Maori organizations, drawn variously from their financial years ending in the calendar years 2009 to 2014, are read closely. These organizations represent diverse tribal and regional associations in terms of size, scope and structure; and in terms of the business, social and cultural activities they pursue. Findings Three core Māori values are identified: spirituality (wairuatanga); intergenerationalism and restoration (whakapapa); and governance, leadership and respect (mana and rangatiratanga). The commitment to these values and the way this commitment is reflected in accountability reports of Maori organizations, is presented. Originality/value The examples provided, and the associated discussion, should help inform reporting initiatives of organizations that are seeking better accountability in terms of their long-term engagement with indigenous communities, the environment and broader society.

A Smartphone-based System to Improve Adherence in Scoliosis Therapy

i-com ◽  
2016 ◽  
Vol 15 (3) ◽  
Author(s):  
Susanne Dannehl ◽  
Diana Seiboth ◽  
Laura Doria ◽  
Michael Minge ◽  
Katharina Lorenz ◽  
...  
Keyword(s):  
Feedback System ◽  
Growth Spurt ◽  
Term Therapy ◽  
User Centered Design ◽  
Pubertal Growth Spurt ◽  
Therapeutic Success ◽  
Therapy Goals ◽  
Education Tool ◽  
Long Term Therapy

AbstractThis project developed and evaluated a smartphone-based feedback system to improve adherence in long-term therapy of scoliotic curves occurring in pubertal growth spurt. A scoliosis means a physical deformity in spine, which can be treated with wearing a thoraco-lumbar orthosis (brace). The therapy is promising if the medical device is worn at least 16 hours a day for several years. To support the adolescent patients reaching their therapy goals, the barriers and resources for a successful bracing treatment were explored in several interviews and workshops with scoliosis patients. In scoliosis therapy, patients usually experience therapeutic success at the beginning of the treatment, whereas after six months the progress normally stagnates and motivation for long-term therapy decreases. In this article we describe the user-centered design of a quiz function as a health education tool within the aforementioned smartphone-based feedback system to improve adherence in long-term therapy of scoliotic curves.

scholarly journals The business cycle: a definition

2021 ◽  
pp. 205-262
Author(s):  
Tuur Demeester
Keyword(s):  
Business Cycle ◽  
Jel Classification ◽  
Austrian School ◽  
Methodological Framework ◽  
The Core ◽  
Palabras Clave ◽  
The Business Cycle ◽  
Necessary And Sufficient ◽  
Counter Argument

The goal of this article is to properly define the economic phenomenon of the business cycle. The text is rooted in the tradition of the Austrian School of Economics, and the methodological framework builds on concepts developed by Aristotle and Thomas Aquinas. This leads to the development of a few new methodological concepts, such as a re-interpretation of «inflation» and «deflation», and the re-introduction of «imaginary goods» as an important social phenomenon. The core observation of the article is that the business cycle is in fact a subclass of another kind of cycle, the «fraud cycle». Our conclusion is that in order to produce a business cycle, the occurrence of institutional fraud in the sphere of money and banking are both necessary and sufficient. The counter-argument that honest banking can also produce business cycles is refuted in Appendix I. We believe this article is significant in two ways: 1) it provides an unambiguous recipe for the long term extermination of the business cycle; and 2) it helps expand the scope of the Austrian School beyond economics into fields of law and morality. Key words: Business Cycle, Fraud Cycle, Austrian School, money and banking. JEL Classification: B53, B49, D01, K13. Resumen: El objetivo de este artículo es definir apropiadamente el fenómeno económico del ciclo económico. El resto está enraizado en la tradición de la Escuela Austriaca de Economía, y el marco metodológico parte de los conceptos desarrollados por Aristóteles y Tomás de Aquino. Esto conduce al desarrollo de algunos conceptos metodológicos nuevos, tales como la reinterpretación de la «inflación» y la «deflación», y la reintroducción de los «bienes imaginarios» como un fenómeno social importante. La observación central de este artículo es que el ciclo económico es de hecho una subclase de otro tipo de ciclo, el «ciclo del fraude». Nuestra conclusión es que para producir un ciclo económico, la existencia de un fraude institucional en la esfera del dinero y la banca es una condición necesaria y suficiente. El Apéndice I refuta el contra-argumento de que una banca honesta también puede producir ciclos económicos. Creemos que este artículo es significativo por dos motivos: 1) ofrece una receta clara para la eliminación del ciclo económico; y 2) ayuda a expandir el ámbito de la Escuela Austriaca más allá del campo de la Economía hacia los campos del Derecho y la Moralidad. Palabras clave: Ciclo económico, ciclo del fraude, Escuela Austriaca, dinero y banca. Clasificación JEL: B53, B49, D01, K13.

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