scholarly journals Landscape-scale modeling of reference period forest conditions and fire behavior on heavily logged lands

Ecosphere ◽  
2014 ◽  
Vol 5 (3) ◽  
pp. art32 ◽  
Author(s):  
R. Stockton Maxwell ◽  
Alan H. Taylor ◽  
Carl N. Skinner ◽  
Hugh D. Safford ◽  
Rachel E. Isaacs ◽  
...  
2012 ◽  
Vol 22 (4) ◽  
pp. 429-444 ◽  
Author(s):  
HUGH A. ROBERTSON ◽  
PIM J. M. de MONCHY

SummaryIn late 2000, five sanctuaries were established on the mainland of New Zealand for the express purpose of protecting populations of five kiwi Apteryx spp. taxa belonging to three species. Conservation management was undertaken at a landscape scale (10,000–20,000 ha) in each sanctuary to improve recruitment of kiwi. This was done by controlling introduced mammalian predators (especially stoats Mustela erminea), and/or by removing eggs and chicks from predation risk, and returning subadults when they were big enough to cope with stoats. Population modelling of the first five years of the sanctuary programme indicated that kiwi numbers in all five sanctuaries would increase as a result of the management. Calculated population increases varied from 0.6% per year at Okarito to 11.3% per year at Moehau, even though predator trapping was more intense at Okarito. The variation from site to site was explained by the widely different inherent productivity of the various kiwi taxa; widely different rates of adult mortality due to the presence or absence of dogs Canis familiaris and ferrets M. furo, the main predators of long-lived adult kiwi; and, local forest conditions affecting predator-prey cycles, and the density of stoats. As a result of this analysis, the management in four of the five sanctuaries has since been modified to try to achieve better overall gains for kiwi within the same operating budget.


2005 ◽  
Vol 19 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Kristof Van Oost ◽  
Gerard Govers ◽  
Timothy A. Quine ◽  
Goswin Heckrath ◽  
Jorgen E. Olesen ◽  
...  

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Paul-Antoine Santoni ◽  
Jean-Baptiste Filippi ◽  
Jacques-Henri Balbi ◽  
Frédéric Bosseur

This work presents the extension of a physical model for the spreading of surface fire at landscape scale. In previous work, the model was validated at laboratory scale for fire spreading across litters. The model was then modified to consider the structure of actual vegetation and was included in the wildland fire calculation system Forefire that allows converting the two-dimensional model of fire spread to three dimensions, taking into account spatial information. Two wildland fire behavior case studies were elaborated and used as a basis to test the simulator. Both fires were reconstructed, paying attention to the vegetation mapping, fire history, and meteorological data. The local calibration of the simulator required the development of appropriate fuel models for shrubland vegetation (maquis) for use with the model of fire spread. This study showed the capabilities of the simulator during the typical drought season characterizing the Mediterranean climate when most wildfires occur.


2019 ◽  
Vol 64 (4) ◽  
pp. 416-435 ◽  
Author(s):  
Hilary Flower ◽  
Mark Rains ◽  
H. Carl Fitz ◽  
William Orem ◽  
Susan Newman ◽  
...  

2018 ◽  
Vol 12 (04) ◽  
pp. 1 ◽  
Author(s):  
Rémy Lasseur ◽  
Clémence Vannier ◽  
Jérémie Lefebvre ◽  
Pierre-Yves Longaretti ◽  
Sandra Lavorel

2013 ◽  
Vol 39 (2) ◽  
pp. 211-223 ◽  
Author(s):  
Titus S. Seilheimer ◽  
Patrick L. Zimmerman ◽  
Kirk M. Stueve ◽  
Charles H. Perry

2018 ◽  
pp. 182-186
Author(s):  
Margherita Lazzara ◽  
Salvatore Bosa
Keyword(s):  

The antitrust observatory presents the most significant decisions and measures of the reference period adopted by the Italian Competition and Market Authority (AGCM), reporting a brief comment accompanying the published texts.


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