scholarly journals Short-term effects of low-intensity prescribed fire on ground-dwelling invertebrates in a Canarian pine forest

2010 ◽  
Vol 19 (1) ◽  
pp. 112 ◽  
Author(s):  
C. García-Domínguez ◽  
J. R. Arévalo ◽  
L. Calvo
2015 ◽  
Vol 23 (6) ◽  
pp. 909-917 ◽  
Author(s):  
William J. Platt ◽  
Alex K. Entrup ◽  
Emily K. Babl ◽  
Cody Coryell-Turpin ◽  
Viet Dao ◽  
...  

1987 ◽  
Vol 13 (4) ◽  
pp. 177-188 ◽  
Author(s):  
José Alemán Vega ◽  
S. Bara ◽  
Miguel Alonso ◽  
Teresa Fonturbel ◽  
Patrícia Garcia

2018 ◽  
Vol 28 (2) ◽  
pp. 547-551
Author(s):  
Galina Мratskova ◽  
Damyan Petrov ◽  
Nedko Dimitrov

Introduction: Osteoarthritis (OA) is a widespread disease among adult population and is one of the major public health problems. OA is leading cause of disability the joints of lower limbs: knee and hip. As global life expectancy increases, it predicted that OA will be the leading cause of damage resulting in permanent disability. In cases of OA a reduction in cartilage tissue is observed, which is radiographically demonstrated by narrowing of the joint space and bone changes, osteophytes and subchondral bone sclerosis. However, a significant proportion of patients with radiological evidence of gonarthritis do not report joint pain. It is important to evaluate the changes occurring in the surrounding tissues. Muscle weakness of m. quadriceps femoris may occur before pain and impaired joint function. The development and application of new non-pharmacological methods in the rehabilitation of degenerative joint diseases is particularly important.Purpose: To establish the short-term therapeutic effects of treatment with Low-frequency and Low-intensive electrostatic field, applied through Deep Oscillation® method and complex of therapeutic exercises in rehabilitation of patients with osteoarthritis of the knee.Materials and methods: We conducted a one-year observational study involving 23 patients with clinical symptoms and radiologically proven II and III stage according Kellgren-Lawrence gonarthritis, aged between 42 and 78 years, were observed. 15 of them were women average age 61.73±12.9 years vs 8 - males average age 61.75±9.6 years (p=0.997). The duration of the current pain-episode was 1.7±0.7 months. The treatment was conducted in 10 sessions and included: Low-frequency and Low-intensity electrostatic field and complex therapeutic exercises.Results: The results were evaluated before and after completion of therapeutic course by assessing pain (VAS) at rest, when walking, climbing and descending on stairs, Manual Muscle Testing, Measurment of the knee joint circumference, Test Range of Motion and WOMAC Osteoarthritis Index, V.LK 3.1. were tracked. For processing statistical data SPSS v.13 was used. There was a statistically significant reduction of pain syndrome at rest (p<0.001), walking (p<0.001), descending stairs (p<0.001), climbing (p<0.001). Reduction of knee joint circumference (p<0.001). Increasing the range of flexion before Ме (Range) from 105º (90º-120º) versus 120º (100º-125º) after therapy. Reduced deficiency at an extension from 3.48 ± 4.38 before therapy to recovery of the extension. Improved total WOMAC Index (p<0.001), Stiffness (p<0.001) and Function (p<0.001).Conclusion: The short-term effects of the application of Low-frequency and Low-intensive electrostatic field in complex with therapeutic exercises show reduction of clinical symptoms and improvement of daily functional activity in patients with knee joint osteoarthritis. Reduction of pain of rest and physical activity (walking, descending and climbing stairs) is observed, oedema is reduced, joint range of motion increases, immediately after completion of the therapeutic course. Because of the small number of patients included in the study for better objectifying of the effects of the low-frequency and low-intensity electrostatic field, the studies should continue.


2001 ◽  
Vol 73 (3) ◽  
pp. 523-531 ◽  
Author(s):  
Dorien PC van Aggel-Leijssen ◽  
Wim HM Saris ◽  
Gabby B Hul ◽  
Marleen A van Baak

1989 ◽  
Vol 16 (6) ◽  
pp. 685 ◽  
Author(s):  
PC Catling ◽  
B Green ◽  
K Newgrain

We examined the postulate that fires would induce shortages of food and water and would be reflected in changes in water influx and efflux, loss of body weight and body fat, and an increase in mass specific body water in populations of Rattus fuscipes and Antechinus stuartii. A low-intensity, prescribed fire had no effect on any parameter and food supplies appeared adequate for the survivors in the short term. Some parameters differed between sites, sexes and species. The differences observed in male A. stuartii resulted from their unusual life cycle and not from fire.


2012 ◽  
Vol 39 (8) ◽  
pp. 731 ◽  
Author(s):  
Ben Hope

Context Prescribed burning is routinely performed within the Sydney Basin as a method of fire-hazard mitigation. Despite the widespread use of prescribed fire, knowledge of the impact of prescribed fire on most fauna species remains unclear. This is particularly the case for bandicoot species. Aims To determine the impact of a low-intensity prescribed fire on the survival of the long-nosed bandicoot, Perameles nasuta, and the southern brown bandicoot, Isoodon obesulus obesulus (hereafter abbreviated to I. obesulus), immediately after the fire and at 5 weeks, 5 months and 13 months following the fire. To document the spatial ecology and nesting requirements of I. obesulus and P. nasuta before and after fire. Methods One I. obesulus and seven P. nasuta (five female and two male) individuals were radio-tracked. Animals were tracked before, during and following a hazard-reduction burn to assess the impact of fire on home range, survival and nesting behaviour. Key results Post-fire survival of P. nasuta and I. obesulus was high and the population remained stable up to 5 months following the fire. All animals tracked within the burn area (three female P. nasuta) survived the passage of fire. The home range for one male I. obesulus was found to be 2.35 ha 50% kernel-density estimate (KDE) and 12.35 ha 95% KDE. Female P. nasuta (n = 5) had a home range of 1.3 ha ± 0.2 s.e. 50% KDE and 7.5 ha ± 1.7 s.e. 95% KDE. Male P. nasuta (n = 1) had a home range of 1.1 ha 50% KDE and 6.5ha 95% KDE. Nesting for both species tended to occur in dense vegetation, with a slight shift to non-combustible refuge sites post-fire. Animals tended to maintain exclusive and relatively stable core home ranges, although overlap of non-core home ranges was common. Conclusions The survival of bandicoots following a low-intensity hazard-reduction fire was high in the short term; however, further research is required to determine how the components of a fire regime affect native species, in particular peramelids. Implications Hazard-reduction fires should be used with caution to manage the isolated and endangered northern Sydney population of I. obesulus, so as to ensure the persistence of this species.


2011 ◽  
Vol 2 (2) ◽  
pp. 135-145 ◽  
Author(s):  
Donald J. Brown ◽  
John T. Baccus ◽  
D. Bruce Means ◽  
Michael R.J. Forstner

Abstract Prescribed fire is a common tool used to conserve and manage the integrity of forest ecosystems. We investigated short-term juvenile amphibian capture and body condition changes subsequent to fire (i.e., one prescribed burn and two wildfires) in a southern United States pine forest. We surveyed amphibians and predatory invertebrates before and after fires occurring during summer 2010. We tested for treatment (i.e., control, wildfire, or prescribed burn) and status (i.e., preburn or postburn) differences in 1) genus-level captures, 2) amphibian health (inferred through a body condition index), and 3) predatory invertebrate captures. Bufo and Scaphiopus captures increased in the prescribed burn treatment; whereas, no differences in Gastrophryne captures were observed. We did not detect a burn status effect on amphibian body condition. Predatory invertebrate captures were higher postburn in the control and wildfire treatments. Neither a low-intensity prescribed burn nor high-intensity wildfires negatively impacted short-term juvenile amphibian captures. Further, we speculate that Bufo and Scaphiopus survivorship may have been higher after the prescribed burn.


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