Vegetation of the Yellingbo Nature Conservation Reserve and its relationship to the distribution of the helmeted honeyeater, bell miner and white-eared honeyeater

2001 ◽  
Vol 28 (1) ◽  
pp. 41 ◽  
Author(s):  
Jennie Pearce ◽  
Peter R. Minchin
Keyword(s):  
Nature Conservation ◽  
Structural Characteristics ◽  
Floristic Composition ◽  
Open Forest ◽  
Floristic Characteristics ◽  
The Relationship

The structural characteristics of the habitat of the helmeted honeyeater, Lichenostomus melanops cassidix, the bell miner, Manorina melanophrys, and the white-eared honeyeater, Lichenostomus leucotis, within the Yellingbo Nature Conservation Reserve have been described elsewhere. The present study aimed to describe the floristic characteristics of the reserve, and explore the relationship between the floristic composition of the vegetation and the presence of each of the three honeyeater species. Six vegetation groups were described and mapped for the reserve. The bell miner and white-eared honeyeater were found to occupy all vegetation groups in proportion to their availability. The helmeted honeyeater was strongly associated with only one of the vegetation groups: E. camphora open forest. The helmeted honeyeater therefore appears to be the most floristically restricted of the three honeyeater species, and this dependence may lead to greater levels of competition for habitat with the more generalist bell miner and white-eared honeyeater.

Structural characteristics and floristic composition of a Neotropical cloud forest, Monteverde, Costa Rica

1995 ◽  
Vol 11 (4) ◽  
pp. 481-495 ◽  
Author(s):  
Nalini M. Nadkarni ◽  
Teri J. Matelson ◽  
William A. Haber
Keyword(s):  
Structural Characteristics ◽  
Cloud Forest ◽  
Basal Area ◽  
Floristic Composition ◽  
Background Information ◽  
Montane Forests ◽  
Forest Reserve ◽  
Forest Density ◽  
Tropical Montane Forests ◽  
Floristic Characteristics

ABSTRACTThe Monteverde Cloud Forest Reserve protects a variety of primary montane forest communities on volcanic parent materials. We describe the structure and composition of the forest to provide background information for epiphyte and nutrient cycling studies and for comparison with other tropical montane forests. In a 4-ha study plot in leeward cloud forest, density of stems (2062 individuals ha−1 for stems >2 cm dbh, 555 individuals ha−1 for stems > 10cm dbh) and stem basal area (73.8 m2 ha−1 for stems >2 cm, 62.0 m2 ha−1 for stems >10 cm dbh) were high relative to other montane forests. Stems in a subset of the plot (c. 1/3 of the area) were identified and assigned to 47 families, 83 genera and 114 species, which is rich compared with other montane forests. Large stems had a higher spatial variability of structural and floristic characteristics than small stems.

Gebirgswaldpflege – es kommt auf den Standort an | Mountain silviculture – it all depends on the site

2001 ◽  
Vol 152 (5) ◽  
pp. 169-176 ◽  
Author(s):  
Monika Frehner
Keyword(s):  
Nature Conservation ◽  
Low Temperature ◽  
Tree Species ◽  
Forest Stand ◽  
Ground Vegetation ◽  
Mountain Forests ◽  
Research Projects ◽  
Snow Mould ◽  
The Relationship ◽  
Protection Forests

The article shows that knowledge of the site of a particular forest stand, together with research results and experience, can provide information that is important for the cultivation of mountain forests, including knowledge of the composition of the tree species and the structure and growth capacity of natural forest. Furthermore, certain sites can, thus, be characterized by factors that influence restocking, such as snow mould,lush ground vegetation or low temperature. The guidelines«minimale Pflegemassnahmen» – «Minimal tending of protection forests» (WASSER und FREHNER, 1996) are based on this principle. For individual sites, warnings about natural dangers such as rock fall or statements concerning nature conservation can be made (e.g., the occurrence of tree species, suitability as a biotope for Capercaille). In conclusion, two research projects on the relationship between site and natural dangers will be presented.

scholarly journals РАСПРЕДЕЛЁННАЯ ОБРАЗНОСТЬ: ИМАГИНАТИВНЫЕ ПРАКТИКИ СОВРЕМЕННОЙ КУЛЬТУРЫ

2020 ◽  
Author(s):  
Ilya Inishev
Keyword(s):  
Structural Characteristics ◽  
Point Of View ◽  
Main Theme ◽  
Contemporary Culture ◽  
Normative Claim ◽  
Political Implications ◽  
Core Feature ◽  
And Control ◽  
The Relationship ◽  
Regime Characteristic

В статье идёт речь о формах образного, которые во всё возрастающей степени становятся характерными для современной культуры. Центральная характеристика этих форм – распределённость в пространстве и времени, их способность сопровождать нас практически повсеместно, не будучи привязанными к каким-либо организационным формам. Распределённые разновидности образного противопоставляются «традиционным», нераспределённым образам, «репрезентирующим» некоторое идентифицируемое содержание. Одна из базовых черт нераспределенного образного – заключённое в нём нормативное притязание, затрагивающее не только способы его интерпретации, но и телесные практики воспринимающего «субъекта», релевантные для его восприятия. В отличие от репрессивного характера нераспределённого образа, являющегося его структурной характеристикой, связанной с характерным для него режимом восприятия, распределённая образность базируется не на редукции и контроле телесности воспринимающего, но – напротив – на интенсификации (и в этом смысле эмансипации) его эмоционально-телесного самоприсутствия. В диахронической перспективе отношение между нераспределённой и распределённой образностью опосредовано сложной социально-исторической и материально-технологической динамикой развитого и позднего модерна. Реконструкция этой динамики позволяет выстроить генетическую связь (континуальность) между нераспределённой и распределённой образностью. В синхронической перспективе распределённая и нераспределенная разновидности образности генерируют несовместимые типы опыта с взаимоисключающими структурными характеристиками и социально-политическими импликациями (дискретность).Main theme of the article are the types of imagery becoming increasingly characteristic of contemporary culture. The core feature of these types is their being distributed across time and space, their ability to accompany us virtually everywhere, without being tied to any organizational form. Distributed imagery opposes “traditional”, non-distributed images “representing” some identifiable subject-matter. One of the essential traits of non-distributed imagery is its normative claim addressing not only the ways of its interpretation but also bodily practices of the perceiving subject, relevant for experiencing images of this kind. In contrast to the inherent oppressiveness of non-distributed image connected to a perceptual regime characteristic of it, the distributed imagery draws not on reduction and control of body of the perceiving subject but – on the contrary – on intensifying (and in this sense, on emancipating) its bodily emotional self-presence. From a diachronic point of view, the relationship between distributed and non-distributed imageries is mediated by quite a complicated socio-historical and material-technological dynamic of the developed and late modernity. Reconstruction of this dynamic enables us to identify the genetic interrelation (continuity) between non-distributed and distributed imagery. From a synchronic point of view, distributed and non-distributed imagery forms generate incompatible experience types with mutually exclusive structural characteristics and social-political implications (discontinuity).

scholarly journals THE EFFECT OF GRASSLAND MANAGEMENT ON DIVERSITY OF SPIDER ASSEMBLAGES IN THE MÁTRA MOUNTAIN

2016 ◽  
Vol 7 ◽  
pp. 291-297
Author(s):  
Tünde Szmatona-Túri ◽  
Diána Vona-Túri
Keyword(s):  
Nature Conservation ◽  
Conservation Management ◽  
Similarity Index ◽  
Grassland Management ◽  
Hay Meadows ◽  
Mountain Grasslands ◽  
Spider Communities ◽  
Study Sites ◽  
And Control ◽  
The Relationship

Our investigation targeted the diversity of spider communities of meadows under nature conservation management and the relationship between mowing and the spider diversity. The study sites represented by six grasslands on three localities of Mátra mountain of Hungary. All three localities were contained a hay meadow and a not mowed meadow. Hay meadows had the richest spider communities.  In the control habitats, the equitability and the Shannon-Wiener diversity were lower than in the mowed grasslands. According to the Bray-Curtis similarity index significant differences were observed between spider assemblages of mowed and control habitats. The prevention of succession effects so rich structure of the vegetation where diverse spider communities can live. Our results suggest that mowing is a suitable management for maintaining a high biodiversity in mountain grasslands.

The effects of glyphosate and triclopyr on common bryophytes and lichens in northwestern Ontario

1999 ◽  
Vol 29 (7) ◽  
pp. 1101-1111 ◽  
Author(s):  
Steven G Newmaster ◽  
F Wayne Bell ◽  
Dale H Vitt
Keyword(s):  
Species Richness ◽  
Community Dynamics ◽  
Herbicide Application ◽  
Northwestern Ontario ◽  
Application Rates ◽  
Open Forest ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
The Relationship

The effects of two silvicultural herbicides (Vision®, Release®) on bryophytes and lichens were studied in a harvested boreal mixedwood ecosystem. A completely randomized design with 115 plots of 1 m2 allowed direct comparison between herbicides and their effects on community dynamics. Regression models were used to analyze the relationship between herbicide application rates (0.71-6.72 kg active ingredient/ha) and changes in bryophyte and lichen abundance and species richness for 2 years following herbicide application. Results showed that bryophyte and lichen abundance and species richness decreased after herbicide treatments. In general, herbicide applications reduced the diversity of forest mesophytes and weedy colonizers to an ecosystem with only a few species of colonizers. A combination of clustering techniques and ANOVA were used to divide bryophytes and lichens into three ecologically defined response groups: herbicide-tolerant colonizers, semi tolerant long-term stayers from dry open forest, and sensitive forest mesophytes.

Flash translation layer: a review and bibliometric analysis

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yuhan Luo ◽  
Mingwei Lin
Keyword(s):  
Structural Characteristics ◽  
Development Trend ◽  
Comprehensive Analysis ◽  
Content Type ◽  
Fundamental Information ◽  
New Ideas ◽  
The Development Trend ◽  
The Relationship ◽  
Research Hotspots

PurposeThe purpose of this paper is to make an overview of 474 publications and 512 patents of FTL from 1987 to 2020 in order to provide a conclusive and comprehensive analysis for researchers in this field, as well as a preliminary knowledge of FTL for interested researchers.Design/methodology/approachFirstly, the FTL algorithms are classified and its functions are introduced in detail. Secondly, the structures of the publications are analyzed in terms of the fundamental information and the publication of the most productive countries/regions, institutions and authors. After that, co-citation networks of institutions, authors and papers illustrated by VOS Viewer are given to show the relationship among those and the most influential of them is further analyzed. Then, the characteristics of the patent are analyzed based on the basic information and classification of the patent and the most productive inventors. In order to obtain research hotspots and trends in this field, the time-line review and citation burst detection of keywords carried out by Cite Space are made to be visual. Finally, based on the above analysis, it draws some other important conclusions and the development trend of this field.FindingsThe research on FTL algorithm is still the top priority in the future, and how to improve the performance of SSD in the era of big data is one of the research hotspots.Research limitations/implicationsThis paper makes a comprehensive analysis of FTL with the method of bibliometrics, and it is valuable for researchers can quickly grasp the hotspots in this area.Originality/valueThis article draws the structural characteristics of the publications in this field and summarizes the research hotspots and trends in this field in recent years, aiming to inspire new ideas for researchers.

Internet Gambling Addiction

2012 ◽  
pp. 735-753 ◽  
Author(s):  
Daria J. Kuss ◽  
Mark Griffiths
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Structural Characteristics ◽  
Internet Gambling ◽  
The Internet ◽  
Addictive Behaviors ◽  
Problem Gamblers ◽  
Per Se ◽  
Ease Of Access ◽  
The Relationship

As the Internet offers a new venue for gambling, the risks for engaging in pathological behaviors are potentially increased. In light of this, a systematic literature review was conducted in order to shed further light on the relationship between gambling on the Internet and possible addiction by assessing Internet gambling in general and addictive gambling on the Internet specifically. Based on previous research, it is argued that a combination of individual, situational, and structural characteristics determine whether and to what extent individuals engage in Internet gambling. The results suggest that there are more problem gamblers on the Internet than in land-based venues. A reason for this may be the structural characteristics of the Internet inherent to this technology, namely availability, ease of access, anonymity, and convenience. In conclusion, however, the Internet cannot be claimed to be addictive per sé, but rather to facilitate the engagement in addictive behaviors, including gambling.

scholarly journals The effects of precipitation variability on the canopy cover of forage species in arid rangelands, Iran

2020 ◽  
Vol 13 (18) ◽  
Author(s):  
Hamed Joneidi ◽  
Nahid Azizi ◽  
Khaled Osati ◽  
Isa Bandak
Keyword(s):  
Linear Regression ◽  
Confidence Level ◽  
Canopy Cover ◽  
Floristic Composition ◽  
Linear Regression Models ◽  
Growing Seasons ◽  
Arid Rangelands ◽  
Annual Plant Species ◽  
The Relationship ◽  
Precipitation And Temperature

Abstract This research was conducted to monitor changes in canopy cover of typical species during a 10-year period in the part of arid rangelands, to find out the relationship between two important climate variables (precipitation and temperature) and canopy cover changes. For that reason, canopy cover percentages of six dominant perennials and all annual plant species combined were measured during a 10-year period at phenological maturity of plant in thirty 2 m × 2 m plots which were placed along two 250-m transect lines. The results demonstrated that the maximum canopy cover for water year 2006–2007 (wet year) and the minimum value for water year 2012–2013 (drought) were 15 and 5.5%, respectively. The canopy cover was modeled by linear regression in which precipitation and temperature variables were considered independent variables. April precipitation explained 65% of changes in the canopy cover percentage of Artemisia sieberi at 95% confidence level (RRMSE = 0.26 and MAE = 0.49). The best simple linear regression models for estimating canopy cover percentages of Stipa barbata and Zygophyllum eurypterum corresponded to cumulative 4-month precipitation from March to June and March precipitation respectively, representing 77% (at 99% confidence level) and 67% (at 95% confidence level) of changes correspondingly. Considering the dominance of A. sieberi, S. barbata, and Z. eurypterum in floristic composition of the study area, it can be concluded that most changes in canopy cover of the studied rangeland are predicted by variability of precipitation during growing seasons.

Fuel characteristics and fire behaviour in mature Mediterranean gorse shrublands

2004 ◽  
Vol 13 (1) ◽  
pp. 79 ◽  
Author(s):  
Martín De Luis ◽  
Manuel J. Baeza ◽  
José Raventós ◽  
José C. González-Hidalgo
Keyword(s):  
Forest Fires ◽  
Plant Density ◽  
Structural Characteristics ◽  
Fire Severity ◽  
Fire Behaviour ◽  
Fuel Distribution ◽  
Degree Of Dominance ◽  
Mediterranean Regions ◽  
The Relationship

Since the early 1990s, Mediterranean gorse shrublands have expanded significantly in the Mediterranean regions of Spain mainly as a result of the increase in the frequency and extension of forest fires. Mediterranean gorse (Ulex parviflorus), which has been described as a degradation stage of forest communities after fire, has also been described as a fire-prone community. Thus, its presence increases the risk that new fires might occur. In spite of this evidence, there is little information on both the composition and structural characteristics of these communities or the relationship that might exist between these vegetation characteristics and fire behaviour. In this paper we present the results of a characterization of the vegetative structure (plant density, specific composition, biomass fractions, and horizontal and vertical fuel distribution) in Mediterranean gorse. We also analyse fire behaviour using indicators obtained at different scales. Our results show mature Mediterranean gorse shrublands to be communities with high biomass values (3000–4000 g m−2) and high horizontal and vertical vegetation continuity, in which the proportion of fine dead fuel fractions with low moisture content is around 50% of the total phytomass present. Ulex parviflorus is the dominant species and its degree of dominance is a key element in the behaviour of fire. Both the fire-line intensity values and the fire severity values observed can be considered high with respect to those observed in other Mediterranean communities, thus confirming Mediterranean gorse as a high-risk community.

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