In a Festuca novae-zelandiae short tussock grassland in South Island, New Zealand, we tested the propositions (1) that present regional trends in vascular plant species-richness in tussock grasslands are independent of current pastoral management, and (2) that grazing retards the invasion and dominance of nonnative species, particularly where soil resources are not limiting. Sheep and rabbit-gr...

The spatial overlap of multiple ecological disturbances in close succession has the capacity to alter trajectories ecosystem recovery. Widespread bark beetle outbreaks and wildfire have affected many forests western North America past two decades areas important habitat for native ungulates. Bark prior fire may deplete seed supply host species, differences fire-related regeneration strategies a...

Aims : This study identified, classified and mapped the different plant communities found on Telperion Nature Reserve. Study area Reserve, Mpumulanga, South Africa. Methods Using a 1:10,000 aerial photograph, was delineated into homogenous physiognomic-physiographic units. 294 sample plots (100 m 2 ) were placed in randomly stratified manner within identified Plant species present recorded allo...

Introduction: Recently, orthognathic surgery is widely used in reconstruction and aesthetics over the world and has found its place in plastic surgery, especially in moderate to severe skeletal deformities. The relationship between facial hard and soft tissues consequently has been raised in planning the surgery and assessment of postoperative changes. Photogrammetry is the reasonable and simpl...

Aims : To quantify how fine-grain (within-plot) beta diversity differs among biomes and vegetation types. Study area Palaearctic biogeographic realm. Methods We extracted 4,654 nested-plot series with at least four different grain sizes between 0.0001 m² 1,024 from the GrassPlot database spanning broad geographic ecological gradients. Next, we calculated slope parameter ( z -value) of power-law...

O cerradão é uma fitofisionomia do Cerrado estruturalmente semelhante a floresta, mas que apresenta espécies com características escleromórficas típicas das formações savânicas. Além de ser um ambiente interessante para se investigar elevada variabilidade intraespecífica, o ainda destaca outras fitofisionomias bioma em termos sequestro carbono aéreo. Objetivamos descrever e comparar aspectos ec...

Forensic personal identification is a fundamental topic of forensic sciences and technologies to identify lived subjects, recently deceased bodies and human remains often at a crime scene by using several appropriate techniques. Throughout human history, many different methods were used for personal identification. The most commonly used method was relying on one’s memory to identify the distin...

sciences, maths and physics, than with the "human" aspects of the sciences which directly concern daily experience and the quality of life. Furthermore, the contributors are literary critics and historians, not scientists proper. Though this book is essentially a project initiated by the Humanities Faculty, it should be of wider interest. Its strength is its diversity; while the editors hanker ...

Climate warming has led to changes in the composition, density and distribution of Arctic vegetation in recent decades1–4. These changes cause multiple opposing feedbacks between the biosphere and atmosphere5–9, the relative magnitudes of which will have globally significant consequences but are unknown at a pan-Arctic scale10. The precise nature of Arctic vegetation change under future warming...

The extrapolation of stress concept in the field of medicine is of great interest nowadays. In correlation with stress, anxiety often lies at the basis of the decisions to avoid an orthodontic treatment, delay the beginning of it or the scheduled visit to a consultation. The perception of the severity of a malocclusion varies according to the degree of physiognomic damage and according to the p...