Some Factors Behind Density Dynamics of Bat Flies (Diptera, Nyc- teribiidae) — Ectoparasites of the Boreal Chiropterans: Omitted Predictors and Hurdle Model Identification - M. V. Orlova; I. A. Kshnyasev; O. L. Orlov; A. V. Zhigalin (Zoodiversity, 2015)