scholarly journals Ceratopogonidae (Diptera: Nematocera) of the piedmont of the Yungas forests of Tucumán: ecology and distribution

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2655 ◽  
Author(s):  
José Manuel Direni Mancini ◽  
Cecilia Adriana Veggiani-Aybar ◽  
Ana Denise Fuenzalida ◽  
Mercedes Sara Lizarralde de Grosso ◽  
María Gabriela Quintana
Keyword(s):  
Human Activity ◽  
Climatic Conditions ◽  
Summer Season ◽  
Ecological Research ◽  
Related Variable ◽  
Light Traps ◽  
Northwestern Argentina ◽  
Tropical Crops ◽  
Accumulated Rainfall ◽  
Yungas Forests

Within the Ceratopogonidae family, many genera transmit numerous diseases to humans and animals, while others are important pollinators of tropical crops. In the Yungas ecoregion of Argentina, previous systematic and ecological research on Ceratopogonidae focused on Culicoides, since they are the main transmitters of mansonelliasis in northwestern Argentina; however, few studies included the genera Forcipomyia, Dasyhelea, Atrichopogon, Alluaudomyia, Echinohelea, and Bezzia. Therefore, the objective of this study was to determine the presence and abundance of Ceratopogonidae in this region, their association with meteorological variables, and their variation in areas disturbed by human activity. Monthly collection of specimens was performed from July 2008 to July 2009 using CDC miniature light traps deployed for two consecutive days. A total of 360 specimens were collected, being the most abundant Dasyhelea genus (48.06%) followed by Forcipomyia (26.94%) and Atrichopogon (13.61%). Bivariate analyses showed significant differences in the abundance of the genera at different sampling sites and climatic conditions, with the summer season and El Corralito site showing the greatest abundance of specimens. Accumulated rainfall was the variable that related the most to the abundance of Culicoides (10.56%), while temperature was the most closely related variable to the abundance of Forcipomyia, Dasyhelea, and Atrichopogon.

scholarly journals Population collapse in Congo rainforest from 400 CE urges reassessment of the Bantu Expansion

2021 ◽  
Vol 7 (7) ◽  
pp. eabd8352
Author(s):  
Dirk Seidensticker ◽  
Wannes Hubau ◽  
Dirk Verschuren ◽  
Cesar Fortes-Lima ◽  
Pierre de Maret ◽  
...  
Keyword(s):  
Human Activity ◽  
Climatic Conditions ◽  
Radiocarbon Dates ◽  
Expansion Phase ◽  
Bantu Languages ◽  
Population Collapse ◽  
Early Stages ◽  
Linguistic Evidence ◽  
Spread Model ◽  
Migration Event

The present-day distribution of Bantu languages is commonly thought to reflect the early stages of the Bantu Expansion, the greatest migration event in African prehistory. Using 1149 radiocarbon dates linked to 115 pottery styles recovered from 726 sites throughout the Congo rainforest and adjacent areas, we show that this is not the case. Two periods of more intense human activity, each consisting of an expansion phase with widespread pottery styles and a regionalization phase with many more local pottery styles, are separated by a widespread population collapse between 400 and 600 CE followed by major resettlement centuries later. Coinciding with wetter climatic conditions, the collapse was possibly promoted by a prolonged epidemic. Comparison of our data with genetic and linguistic evidence further supports a spread-over-spread model for the dispersal of Bantu speakers and their languages.

Influence of Environmental Agents in Architecture. Tradition and Innovation. Romania: A Case Study

2012 ◽  
Vol 174-177 ◽  
pp. 1722-1725
Author(s):  
Ana Maria Dabija
Keyword(s):  
Indoor Environment ◽  
Building Materials ◽  
Climatic Conditions ◽  
Summer Season ◽  
Traditional Architecture ◽  
Local Conditions ◽  
The Past ◽  
The North ◽  
Environmental Agents

Geographically, Romania is situated in the continental temperate zone of Europe, with severe climatic conditions: the winters are very cold (with temperatures that can reach, in some provinces or in some days, values of -200C to –350C) and the summers very hot (in the past few years temperatures were between +38 - +400C, for weeks). Not only the air temperature gradient is broad (75 ÷ 800C), but as a consequence the temperature difference on the horizontal surfaces may rise to as much as 1000C. Romania is situated between parallels 430 and 480. In a very simple/simplistic approach, it can be considered as being half way between the North Pole and the Equator, therefore the constructive components can be identified in both the Northern architecture and the Southern one. The traditional architecture aims to provide a comfortable indoor environment both during the winter and the summer season, by using local building materials. Along with the building conformation, given by the local conditions (climate, earth, building materials), the peoples interventions (from religion to fashion) are also determinant. The paper presents some building principles, constructive systems and materials that transcend traditional architecture, in Romania.

scholarly journals Analysis of the multi-stage desiccant cooling system performance in Wrocław (Poland)

2019 ◽  
Vol 100 ◽  
pp. 00062 ◽  
Author(s):  
Anna Pacak ◽  
Aleksandra Cichoń ◽  
Demis Pandelidis ◽  
Sergey Anisimov
Keyword(s):  
System Performance ◽  
Cooling System ◽  
Climatic Conditions ◽  
Summer Season ◽  
The Other ◽  
Cooling Mode ◽  
Multi Stage ◽  
Mode 2 ◽  
Application Potential ◽  
Weather Parameters

In this study, the application potential of desiccant cooling system with indirect evaporative precooling is analyzed for moderate climatic conditions. Wrocław (Poland) was selected as a representative city. On the base of summer season weather parameters different system running modes were proposed such as cooling and dehumidification mode (Mode 1) and only cooling mode (Mode 2). The average month Thermal and Electrical COP were established for selected climatic conditions. It was concluded that proposed system allows to cool the air without occurrence of condensation in Mode 2 with high average monthly electrical COP (COPel = 62.2 in August). On the other hand when dehumidification is needed, system operates in Mode 1 and obtains relatively high average Thermal COP values (COPth = 2.2).

scholarly journals Performance evaluation of quality protein maize genotypes across various maize production agro ecologies of Nepal

2015 ◽  
Vol 1 (1) ◽  
pp. 21-27 ◽  
Author(s):  
Jiban Shrestha ◽  
Keshab B Koirala ◽  
Ram B. Katuwal ◽  
Narayan B Dhami ◽  
Bhanu B Pokhrel ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Block Design ◽  
Field Trials ◽  
Climatic Conditions ◽  
Summer Season ◽  
Quality Protein Maize ◽  
Maize Production ◽  
Maize Genotypes ◽  
Randomized Complete Block Design ◽  
Superior Genotypes

To identify superior quality protein maize genotypes for grain yield under different agro climatic conditions of terai and hill districts in Nepal, the coordinated varietal trials (CVT) were conducted at Dailekh, Doti, Salyan, Lumle and Pakhribas in 2013 and Salyan, Pakhribas and Kabre in 2014 during summer season and coordinated farmer’s field trials (CFFT) at Surkhet and Dailekh in 2013 and Salyan, Pakhribas and Khumaltar in 2014 during summer season. The experiment was carried out using randomized complete block design with three replications for CVT and CFFT. Across the locations and years the superior genotypes found under CVT were S01SIYQ, S01SIWQ-2 and Poshilo Makai-1 where as S99TLYQ-HG-AB, S99TLYQ-B and Poshilo Makai-1 were found superior genotypes under CFFT. The superior genotypes derived from CFFT will be promoted further for similar environments across the country.Journal of Maize Research and Development (2015) 1(1):21-27DOI: http://dx.doi.org/10.5281/zenodo.34282

scholarly journals Data on sand fly fauna (Diptera, Psychodidae, Phlebotominae) in Itatiaia National Park, Rio de Janeiro State, Brazil

2007 ◽  
Vol 23 (3) ◽  
pp. 725-730 ◽  
Author(s):  
Margarete M. S. Afonso ◽  
Wagner A. Costa ◽  
Alfredo C. R. Azevedo ◽  
Simone M. da Costa ◽  
Maurício L. Vilela ◽  
...  
Keyword(s):  
Cutaneous Leishmaniasis ◽  
Human Activity ◽  
Rio De Janeiro ◽  
National Park ◽  
Sand Fly ◽  
Sand Flies ◽  
Light Traps ◽  
Janeiro State

The sand fly fauna in Itatiaia National Park, Rio de Janeiro, Brazil, was investigated in different habitats ranging from sylvatic areas to those altered by human activity related to ecotourism, specifically identifying species that have been suggested as potential leishmaniasis vectors. Sand flies were captured from June 2002 to March 2004, using CDC light traps and Shannon traps. A total of 1,256 sand fly specimens were captured, from species belonging to genera Lutzomyia and Brumptomyia: Brumptomyia guimaraesi, B. troglodytes, Lutzomyia (Lutzomyia) amarali, L. lanei, L. migonei, L. sallesi, L. edwardsi, L. tupynambai, L. (Pintomyia) pessoai, L. (P.) bianchigalatie, L. rupicola, L. (Psathyromyia) shannoni, L. pascalei, L. (Psychodopygus) matosi, L. (P.) davisi, L. (P.) hirsuta hirsuta, L. (P.) ayrozai, L. peresi, L. monticola, and L. misionensis. Worthy of special attention were four species that are considered potential vectors for cutaneous leishmaniasis in Brazil: L. ayrozai, L. hirsuta hirsuta, L. migonei, and L. davisi, representing 19.19% of the specimens captured in this study.

scholarly journals Seasonal Variability of Climatic Conditions for Tourism and Recreation Along the Southern Coast of the Baltic Sea

2014 ◽  
Vol 7 (1) ◽  
pp. 57-80 ◽  
Author(s):  
Małgorzata Świątek
Keyword(s):  
Baltic Sea ◽  
Seasonal Variability ◽  
Outdoor Recreation ◽  
Sunshine Duration ◽  
Climatic Conditions ◽  
Summer Season ◽  
Southern Coast ◽  
The Baltic Sea ◽  
The Baltic ◽  
Active Recreation

AbstractThis paper aims to indicate the periods within the year that are most and least suited to outdoor recreation along the southern coast of the Baltic Sea. The author indicates these periods based on the analysis of annual variability of several meteorological and bioclimatic parameters from the years 1981-2010 in Greifswald and Świnoujście, and from 1985 to 2010 in Hel and Gdynia. Passive recreation is favoured in July and the first half of August. The whole of the summer season has the most favourable conditions for active recreation. Good conditions frequently occur in May, and to a lesser degree in September. The advantages of May are that it has the highest sunshine duration and the lowest frequency of precipitation.

scholarly journals Repositioning of Romanian Seaside Tourism as an Effect of Climate Change

Information ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 108
Author(s):  
George-Cornel Dumitrescu ◽  
Simona Moagar Poladian ◽  
Alina-Cerasela Aluculesei
Keyword(s):  
Climate Change ◽  
Geographical Location ◽  
Secondary Data ◽  
Climatic Conditions ◽  
Tourism Industry ◽  
Summer Season ◽  
Exploratory Research ◽  
Economic Activities ◽  
Long Run ◽  
Negative Effect

The present paper examines the evolution of Romanian seaside tourism between 2008–2018 to find the connection between climate change and the number of total tourist arrivals. The vicious cycle of greenhouse gas emissions and climate change has become one of the most critical topics discussed due to its negative effect on the wellbeing of the planet and its impact on sustainable economic development in the long run. Various economic activities, including tourism, could be subject to dramatic changes due to global warming. Depending on the geographical location of tourist destinations, and the degree of fluctuation in climate indicators, there have been dramatic shifts in visitor flow. This situation has been aggravated as countries that were once famous for their summer season and seaside holidays are now affected by high temperatures. Such temperatures can hardly be tolerated by tourists, particularly those from the Nordic countries. By comparison, there are countries that have been known to have only two or three full summer months suitable for tourism at the seaside and which in the last years have had a more extended summer season. This situation could turn into a significant competitive regional economic advantage for countries such as Romania, at least in the short- and medium-term. In this context, we aim to investigate whether there are climatic conditions, such as the extension of the tourist season on the coast (in the case of destinations that have four seasons and are known for having a shorter number of summer days), that can be turned into advantages. In this regard, we have conducted exploratory research to analyse if there is a statistically significant correlation between the indicators regarding climate change and tourism arrivals on the Romanian seaside, namely Constanta county. For our study, we used secondary data, provided by the Romanian National Meteorological Administration and the National Institute of Statistics, and accumulated a detailed profile of Romanian seaside summer tourism in the context of actual climate changes and challenges. Climate change may have significant consequences on the tourism industry and economic growth as well. Information on the direct effects higher temperatures could have on tourism is lacking. Improving policy analysis is necessary to reduce uncertainties, further understanding, assess implications and enable the tourism industry to adapt to changing circumstances.

scholarly journals On the trends of long-range air pollution and the dynamics of comfort in climatic conditions in the first half of the twenty-first century in Russia

2019 ◽  
Vol 15 (6) ◽  
pp. 36-47
Author(s):  
A. A. Makosko ◽  
A. V. Matesheva ◽  
S. V. Emelina
Keyword(s):  
Air Pollution ◽  
Long Range ◽  
Human Activity ◽  
Atmospheric Pollution ◽  
General Circulation ◽  
Climate Changes ◽  
Climatic Conditions ◽  
First Century ◽  
Pollution Indices ◽  
Methodical Approach

Changes in the general circulation of the atmosphere in a changing climate can lead to a noticeable redistribution of the amount of pollutants entering and areas affecting regions during long-range pollution. In this connection, a methodical approach has been formulated for assessing the trends of long-range atmospheric pollution for given environmentally significant zones, taking into account the predicted climate changes. Pollution indices, characterizing the amount of transported impurity in the latitudinal and meridional directions, are introduced, and calculations are made for January, April, July, October and the year for the period 1980—2050, which generally indicate well-defined trends in long-range atmospheric pollution. The study of the dynamics of the influence of changing weather and climatic conditions in specific areas on human activity in terms of comfort of living has been carried out.

scholarly journals Implications of the COVID-19 pandemic for Antarctica

2020 ◽  
Vol 32 (6) ◽  
pp. 426-439
Author(s):  
Kevin A. Hughes ◽  
Peter Convey
Keyword(s):  
Environmental Protection ◽  
Human Activity ◽  
Virus Transmission ◽  
Summer Season ◽  
Fishing Industry ◽  
Global Challenge ◽  
Rapid Action ◽  
Temporary Decrease ◽  
The Antarctic ◽  
Early Phases

AbstractTo date, Antarctica is the only continent to have escaped the COVID-19 pandemic. This was facilitated by the continent's isolation and low human presence, combined with the global emergence of the pandemic at the end of the Antarctic summer season and the rapid action of those national governmental operators and other actors still active on and around the continent during the early phases of the outbreak. Here, we consider the implications of the pandemic for Antarctic governance, national operator logistics, science, tourism and the fishing industry, as well as for Antarctic environmental protection. Global disruption will result in a temporary decrease in human activity in Antarctica, in turn leading to a reduction in environmental impacts for a period, but also a reduced capacity to respond to environmental incidents. Given the diversity of transmission routes and vectors, preventing the introduction of the virus will be difficult, even with stringent quarantine procedures in place, and the risks and implications of virus transmission to Antarctic wildlife are largely unknown. With control of the pandemic a major global challenge, international cooperation will be essential if Antarctica is to remain free of coronavirus.

Diversity and richness of small mammals at a well-conserved site of The Yungas in Jujuy Province, Argentina

Mammalia ◽  
2016 ◽  
Vol 80 (3) ◽  
Author(s):  
Santiago Gamboa Alurralde ◽  
M. Fernanda López Berrizbeitia ◽  
Rubén M. Barquez ◽  
M. Mónica Díaz
Keyword(s):  
Small Mammals ◽  
Small Mammal ◽  
Human Activities ◽  
New Records ◽  
Conservation Status ◽  
Species Accumulation Curve ◽  
Northwestern Argentina ◽  
Accumulation Curve ◽  
High Diversity ◽  
Yungas Forests

AbstractWe present the results obtained from 12 small-mammal surveys conducted between 1996 and 2013 in “Finca Las Capillas”, province of Jujuy, Argentina. This region has been formally recognized as an “Area of Importance for the Conservation of Bats” (AICOM) based on the diversity of species detected in our previous studies. This site in the Yungas forests of northwestern Argentina still maintains an excellent conservation status due to restrictions to human activities involving deforestation and limitations to cattle-raising imposed 50 years ago. A total of 39 species belonging to three orders, namely, Didelphimorphia, Chiroptera and Rodentia, were recorded. The species accumulation curve revealed that our records represent 83–95% of the community, and with high diversity indexes. Several of the genera and species that we recorded from our collection trips have been included in the fauna of Argentina. Our previous studies and the present findings provide new records for the province or significant extensions to previously known distributions of several taxa of small mammals. These results show that the site represents an icon for conservation in such a fragmented and exploited area as the Yungas in Argentina today.

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