Temperature-Dependent Demography of Two Closely Related Predatory Mites Neoseiulus womersleyi and N. longispinosus (Acari: Phytoseiidae)

Abstract

Temperature has significant effects on the development, survival, and reproduction of ectothermic organisms. In this study, we examined the effect of temperature on the demographic characteristics of two predatory mite species, Neosciulus womersleyi (Schicha) and N. longispinosus (Evans), reared on Tetranychus urticae Koch. The developmental and reproductive traits of both species were examined at 10 constant temperatures between 15 °C and 37.5 °C. The preadult development time of N. womersleyi and N. longispinosus decreased with increasing temperature until 32.5 °C and 35 °C, respectively. The lower developmental threshold (T0) and thermal constant (K) estimated by using a linear model were 11.61 °C and 69.36 DD for N. womersleyi and 11.92 °C and 61.5 DD for N. longispinosus, respectively. Total preoviposition period and total longevity of females and males of N. womersleyi and N. longispinosus decreased with increasing temperature. The mean generation time (T) first decreased with temperature until 32.5 and 35 °C for N. womersleyi and N. longispinosus, respectively, and then increased at higher temperatures. The R0 and r values first increased with temperature until 32.5 and 30 °C for N. womersleyi and N. longispinosus, respectively, and then decreased at higher temperatures. The R0 and r values for N. longispinosus at 37.5 °C were 0.3 offspring and -0.143 d-1, respectively. These results show that N. longispinosus is less fit than N. womersleyi at 37.5 °C.

<p class="Body"><strong>Development and life history parameters of <em>Typhlodromus recki</em> (Acari: Phytoseiidae) feeding on <em>Tetranychus urticae</em> (Acari: Tetranychidae) at different temperatures</strong></p>

“…Similar r values were obtained for T. bagdasarjani (0.12 d -1 ), A. swirskii (0.13 d -1 ) and N. cucumeris (0.13 d -1 ) at 25 °C (Ganjisaffar et al 2011;Lee & Gillespie 2011;Al-Azzazy et al 2018). The r values of T. recki in the present study are lower than those of N. californicus (0.33 d -1 ), N. womersleyi and N. longispinosus (0.30 d -1 ), P. persimilis (0.29 d -1 ), N. longispinosus (0.18 d -1 ) A. andersoni (0.16 d -1 ) (Kustutan & Cakmak 2009;Sugawara et al 2017;Moghadasi et al 2016;Tung et al 2017;Li et al 2019), but higher than those of T. pyri and E. finlandicus, E. concordis (0.11, 0.09 and 0.03 d -1 ) (Mesa et al 1990;Puchalska & Kozak 2015). In the present study, the temperature-dependent increase in r was negatively affected at 35 °C (-0.36 d -1 ).…”

“…Total fecundity of T. recki increased with increasing temperature from 15 to 20 °C and then decreased from 25 to 35 °C. The total fecundity of T. recki at 25 °C is higher than those of T. bagdasarjani (21.5 eggs) (Riahi et al 2016), A. swirskii (25.0 eggs) (Lee & Gillespie 2011), T. pyri (19.9 eggs) and E. finladicus (12.2 eggs) (Puchalska & Kozak 2015), but lower than those of N. californicus (54.3 eggs) (Kustutan & Cakmak 2009), Iphiseius degenerans (53.7 eggs) (Tsoukanas et al 2006), N. longispinosus (47.9 eggs) (Sugawara et al 2017), A. andersoni (45.6 eggs) (Li et al 2019), N. womersleyi (42.1 eggs) (Sugawara et al 2017), This is expected as various species of predatory mites reared at different temperatures and/or fed different prey have different total fecundity (Helle & Sabelis 1985).…”

Effects of photoperiod on development and demographic parameters of the predatory thripsScolothrips longicornisfed onTetranychus urticae

“…The life table's application to the investigation of insect populations for accurate IPM has been underutilized and underemphasized owing to the difficulties involved in collection of data and the variability of life tables generated under different host plants and different environmental conditions. The tedious estimations inherent in life table analyses may contribute to errors in population parameters and subsequently their interpretation (Sugawara et al ., 2017). However, because traditional life tables are female age-specific (Birch, 1948; Carey, 1993) they ignore the male component of the population and are incapable of properly differentiating among the varying development rates across stages, an aspect unique to mites and insect, their application causes certain problems (Huang and Chi, 2012).…”

Habitat selection and interspecific competition between Sylvia warblers in Cyprus following the rapid expansion of a recent colonizer

“…Data on monthly total rainfall and average temperature for the duration of the study were obtained from the nearest meteorological station for each plot (Department of Meteorology 2018). We used rainfall and temperature data of the two-month period that preceded surveys, because the combination of increased soil moisture and relatively high ambient temperature triggers a gradual invertebrate population increase over the following weeks (Janzen 1973, Speight et al 2008, Ramya et al 2017, Sugawara et al 2017. The Sylvia warblers we studied feed mostly on invertebrates, and invertebrate population fluctuations determine the timing of establishment of home ranges and territories (Jones 2006).…”