scholarly journals Occurrence of Scolytinae in mangrove with impact trap and in wood of five forest species

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Charles Oliveira da Silva ◽  
Henrique Trevisan ◽  
Thiago Sampaio de Souza ◽  
Acacio Geraldo de Carvalho

Scolytinae is a beetle group belonging to Order Coleoptera; these insects play an essential role in wood degradation in forest ecosystems, since they build galleries that enable substrate colonization by other saprophytic organisms, as well as nutrient cycling. Thus, the aim of the current study was to evaluate the occurrence of Scolytinae in the wood of 5 tree species exposed to mangrove environment, as well as to simultaneously survey Scolytinae specimens captured in ethanol-baited impact traps placed in the same environment. The study was carried out in a mangrove area located in Santa Cruz neighborhood - RJ. Five freshly-harvested Clitoria fairchildiana, Rhyzophora mangle, Corymbia citriodora, Melia azedarach and Eucalyptus pellita wood logs (1 m long and 5-10 cm diameter) were arranged perpendicular to the ground (1 m above it) and spaced 30 cm away from each other. Five impact traps were set up 50 m away from each other, 1.3 m above the ground. Insects were collected for 5 months. One hundred and thirty (130) Scolytinae individuals (14 species in 2 genera) were recorded in the wood logs; the relative frequency (Fr) of the species comprised Xyleborus affinis (33.9%) and Hypothenemus sp.4 (17.7%), which represented 51.6% of the total number of captured individuals. Hypothenemus sp.6 specimens were not collected in ethanol-baited traps, but the wood of C. fairchildiana. E. pellita did not show insect infestation. The traps captured 798 individuals (24 species belonging to 8 genera); the frequency of X. affinis (25.3%) and Hypothenemus eruditus (14.5%) represented 39.8% of the total number of captured insects.  

Biologia ◽  
2017 ◽  
Vol 72 (7) ◽  
Author(s):  
Mária Petrášová-Šibíková ◽  
Igor Matečný ◽  
Eva Uherčíková ◽  
Peter Pišút ◽  
Silvia Kubalová ◽  
...  

AbstractHuman alteration of watercourses is global phenomenon that has had significant impacts on local ecosystems and the services they provide. Monitoring of abiotic and biotic changes is essential to mitigating long-lasting effects, and the 23-year dataset from the Gabčíkovo Waterworks provided a rare opportunity to assess the impact of groundwater regimes on vegetation. The main aim of this study was to describe the effect of the Gabčíkovo Waterworks on vegetation structure and species composition of the adjacent riparian floodplain forests over the past 23 years. The results are based on studies of three permanent monitoring plots (PMPs) located in the Danube inland delta – two outside (PMP 1 and 3) and one (PMP 2) fully under the influence of the artificial supply system. Our results demonstrate that the Danube inland delta was negatively affected by the Gabčíkovo construction, particularly for sites outside of the artificial supply system. There was a significant decrease in soil moisture and increase in nitrogen at both external PMPs (1 and 3). Alter soil conditions were accompanied by negative changes in plant species composition demonstrated by decreases in the number of typical floodplain forest species that are characteristic for the alliance


2019 ◽  
Vol 12 (2) ◽  
pp. 245-258
Author(s):  
Nina Tiralla ◽  
Oleg Panferov ◽  
Heinrich Kreilein ◽  
Alexander Olchev ◽  
Ashehad A. Ali ◽  
...  

2016 ◽  
Vol 44 (109) ◽  
Author(s):  
Cintia Silva Nunes ◽  
Alexandre Miguel do Nascimento ◽  
Rosilei Aparecida Garcia ◽  
Roberto Carlos Costa Lelis

2019 ◽  
Vol 53 ◽  
pp. 210-219
Author(s):  
Andrii Manko ◽  
Petro Voitkiv ◽  
Yurii Nakonechnyi

The virgin forests of the Ukrainian Carpathians are unique ecosystems in which preserved natural, protected, recreational, historical and cultural objects. That is why a comprehensive study of the forest ecosystems of the Ukrainian Carpathians is needed in order to preserve these unique treasures of our country. The Ukrainian Carpathians are characterized in ecological, educational and scientific-cognitive aspects, as a significant number of objects and monuments of nature, history, architecture and culture are concentrated here. In the region under study, there is a well-developed network of nature reserve fund, the objects of which are basic for the organization of tourist activity. The importance of virgin forests as an ecological-educational and scientific-cognitive object of the Ukrainian Carpathians is revealed. The purpose of the research was to study the forests of the Ukrainian Carpathians, as an object of ecological, educational and cognitive perception. The object of the research was the forest ecosystems within the conservation areas of the Ukrainian Carpathians. The subject of the study was the consideration of forest ecosystems as an ecological-educational and scientific-cognitive object. To achieve this goal, the following tasks were set: to give a complete definition of the term “primaeval” forests and their varieties; to identify, establish distribution areas and forest areas in the Ukrainian Carpathians; to analyze their ecological-educational and scientific-cognitive functions. It is revealed that the centres of distribution of forest ecosystems in the Ukrainian Carpathians are nature conservation areas, namely: Carpathian Biosphere Reserve, Carpathian National Park, Uzhansky, Synevyr Verkhovyna, Cheremosky, Hutsulshchyna, Vyzhnytsya, Zacharovanyi Krai. It is stated that ecological-educational and scientific-cognitive objects in the region are natural undisturbed by the anthropogenic activity of the place. The best network of ecological-educational and scientific-educational trails is set up in the Carpathian Biosphere Reserve. The most popular are the eco-routes “To Goverla Mountain from Lazeshchyna”, “Kevelsky Forests to Petros”, “Beech Forests of Velyka Ugolka”, “To Sokolino Berdo”. It is revealed that the ecological-educational and scientific-cognitive potential of the forests of the Ukrainian Carpathians is special. The primaeval forests are widespread in the Ukrainian Carpathians, and their area is about 50 thousand hectares, and much of it requires identification. Forests have a special status in Ukraine and are strictly protected in nature reserves and perform ecological-educational and scientific-cognitive functions, since within them preserved natural, intact, virgin objects and also represent the cultural heritage of the region. Key words: Ukrainian Carpathians, virgin forests, quasi-virgin forests, ancient forests, ecological-educational and scientific-cognitive objects.


2017 ◽  
Vol 63 (No. 7) ◽  
pp. 331-338
Author(s):  
Pecháček Jan ◽  
Vavříček Dušan ◽  
Kučera Aleš ◽  
Dundek Peter

The current revitalization of forest ecosystems in the Krušné Hory Mts. is carried out through: (i) spreading line windrows, (ii) chemical amelioration. The aim of this research consisted in: (i) assessing basic pedochemical characteristics of spread windrows, (ii) testing the effect of slow-release fertilizers from the Silvamix<sup>®</sup> series and dolomitic limestone on the root ball zone soil five years after application. The results of this study suggest that spread windrows are a suitable environment for forest species: with the only risk being extremely low P concentrations. Our results further show an increase in the amount of soil macrobioelements in the case of Silvamix<sup>®</sup> R and Silvamix<sup>®</sup> Forte, namely P over 125 and 85%; Mg<sup>2+</sup> over 84 and 108%; base saturation (BS) over 44 and 40.7%, respectively, compared with a control. Having applied dolomitic limestone, an increase of BS (by 88%), Mg<sup>2+</sup> (by 250%) and Ca<sup>2+</sup> (by 37%) was observed; there was a reduction in the level of mobile Al<sup>3+</sup> (by 25%) compared with the control. Stromfolixyl<sup>®</sup> application did not affect the chemistry of the soil environment.


CERNE ◽  
2014 ◽  
Vol 20 (4) ◽  
pp. 509-517 ◽  
Author(s):  
Rosilei Aparecida Garcia ◽  
Nathalia Silveira de Oliveira ◽  
Alexandre Miguel do Nascimento ◽  
Natália Dias de Souza

Conduziu-se, este estudo, com os objetivos de caracterizar a cor da madeira de Corymbia citriodora (Hook.) K.D. Hill & L.A.S. Johnson, Eucalyptus pellita F. Muell, Eucalyptus paniculata Sm. e Eucalyptus grandis Hill ex Maiden; e determinar sua correlação com a densidade da madeira, visando a avaliar o potencial da colorimetria como uma ferramenta para a identificação e qualificação da madeira. As análises colorimétricas foram realizadas segundo o sistema CIE L*a*b* com o auxílio do espectrofotômetro portátil CM 2600d da Konica Minolta. Os resultados indicaram diferenças significativas entre as densidades das espécies estudadas, sendo a madeira de Eucalyptus paniculata a mais densa e a madeira de Eucalyptus grandis a menos densa. As análises de correlação entre acor e a densidade monstraram que as madeiras mais densas, para as espécies do gênero Eucalyptus estudadas, são mais escuras (menor L*) e apresentam mais pigmento vermelho (a*) e amarelo (b*). Entretanto, o comportamento foi diferente para o Corymbia citriodora, cuja madeira apresentou alta densidade, cor clara e pouco pigmento vermelho, indicando que a combinação das variáveis colorimétricas e da densidade apresenta potencial para segregar a espécie Corymbia citriodora das demais espécies de Eucalyptus estudadas. As madeiras mais densas de Eucalyptus pellita são mais escuras na seção radial, enquanto que as madeiras de Eucalyptus paniculata apresentaram mais pigmento amarelo na seção tangencial. Cada espécie apresentou uma coloração específica, dada pelas variáveis colorimétricas, mostrando o potencial da colorimetria na identificação de madeiras


1962 ◽  
Vol 10 (1) ◽  
pp. 35 ◽  
Author(s):  
MJ Mackerras

Innisfail, a small coastal town in north Queensland, lies on the plain between the Atherton Plateau and the coastal hills, an area once covered with tropical rain-forest, but now extensively cleared for the growing of sugar cane. As part of an investigation of leptospirosis, small mammals have been collected, and mark-recapture experiments set up in areas sampling vegetation of different kinds. The species found comprised two monotremes, ten marsupials, nine bats (which were not collected intensively), nine rodents, and three other mammals. Some difficulty was experienced in distinguishing the local rodents, and a key to the species is given. This fauna could be divided into three elements: a rain-forest fauna of 14 species (excluding bats), a sugar-cane fauna of ten species, and a house fauna of four species. The sugar-cane fauna is shown to be derived, not from the rain-forest species, but from part of the fauna of the open forest which covers the hinterland, all the species being also recorded from New Guinea. The rain-forest fauna agrees with the list of species recorded from this part of Australia. A comparison is made with Malayan rain-forest, which is richer in mammal species. The niches corresponding to those of the nocturnal Malayan mammals seem well filled, but there is a deficiency of mammals corresponding to the diurnal species, such as monkeys, squirrels, and cattle, and also to the large carnivores.


2021 ◽  
Vol 49 (2) ◽  
pp. 43-51
Author(s):  
Sead Noćajević ◽  
Jasmina Ovčina ◽  
Admir Musić ◽  
Emir Imširović ◽  
Besim Salkić ◽  
...  

UDK: 634.2:574.4]:502(497.6 “Konjuh“) The area of the protected landscape "Konjuh" is distinguished by quality forest ecosystems, featuring diverse fruit-bearing forest species, which contributes to the conservation of biodiversity of the protected landscape "Konjuh". The aim of the paper is to assess the state of biodiversity of fruit-bearing species in the forest ecosystems of the study area, with the emphasis on determining the genus richness as a basis for conservation (in/ex situ), breeding and economic use. During the vegetation season in 2015 and 2016, several relevés (phytosociological plot) were made in the Protected Landscape "Konjuh". The results of the research indicate the high level of variability for most of the species according to characteristics of biology, pomology, and ecology. The fruit trees, like the noble hardwood, are wild cherry, (Prunus avium L.), wild pear (Pyrus communis L.), wild apples (Malus sylvestris Mill.), Breccia (Torminalis clusii M. Roem.), Sorbus aria L. et all, Wild cherry, Vrapcarka (Prunus avium L.) is the most famous forest fruit grower, occurs as a single tree or in smaller groups (Noćajević, 2009). The benefits of fruit-bearing forest species are emphasized in the bloom and the fruiting time, when "decorated" forest provide a rich bee pasture and feeding nutriment for forest fauna (Orešković et al. 2006). Fruit-bearing Forest species are significant as the genera of the varieties and as a basis for the grafting for high-grade varieties. Also, they are important for humans from the aspect of ecology, nutrition, dietotherapy, pharmacology and bioenergy balance.


2005 ◽  
Vol 156 (12) ◽  
pp. 496-509
Author(s):  
Christian Rosset

WIS.2 is a powerful software instrument for the management of forest ecosystems, which is targeted, efficient, sustainable,close to nature and multifunctional. This decision support system comprises numerous applications, each of which represents a particular domain of silvicultural management. It is possible to set up an analysis of the principal characteristics of a given domain, its particularities, the possibilities of silvicultural intervention and its limits, but also forest resources that are likely to be of specific interest. WIS.2 also makes it possible to put into place a managerial strategy by starting with a defined targeted state of the ecosystem in order to ensure the sustainable supply of forestry products in accordance with demand,then, concepts of intervention that are determined for the long and medium term according to the conditions of the stands. WIS.2 is conceived in such a way that it can quickly be adapted to accommodate changes in silvicultural management with relative ease.


2014 ◽  
pp. 141-155
Author(s):  
Vladislava Galovic ◽  
Andrej Pilipovic ◽  
Miroslav Markovic ◽  
Verica Vasic ◽  
Predrag Pap ◽  
...  

This paper presents an overview of the results achieved in the laboratory for molecular studies of the Institute of Lowland Forestry and Environment, University of Novi Sad, in the field of biotechnology, mainly in molecular genetics, genomics and functional genomics. Researches are designed to serve as a breeding tool. The aim was to clarify the processes of classical genetics by applying modern methods and enable a qualitative and rapid progress in understanding the processes that occur at the level of genes in the genome of forest plant species and thus help the processes of conservation of valuable taxa at the time of global climate change. The results are presented within various research fields and by type of forest trees that were given priority by importance in forest ecosystems. Studies have in most cases been of applicative character with the aim of solving the major problems in forestry, but also of fundamental nature when they were necessary to elucidate the response of forest species to the induced stress, which is an inevitable component of the time characterized by tolerance and adaptation as keywords.


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