An easy, convenient statistical method to analyze bark beetle populations

Abstract A non-invasive method to estimate the number of Trypodendron lineatum holes on dead standing pines ( Pinus sylvestris L.) was developed using linear and nonlinear estimations. classical regression model first used analyze relationship between caused by T. selected stem units total an entire P. . Then, obtain a better fit function data for unit in step, piecewise (PLR) used. Last, area evaluate wood decomposition (method validation), mean numbers were estimated single trees sample n = 8 trees). Data collected 2009 (data set D1), 2010–2014 D2) 2020 D3) forests containing located within Suchedniów–Oblęgorek Landscape Park, Poland. constructed with three equations. An evaluation accuracy showed that it highly effective regardless density size. The enables biological role this species strictly protected areas.