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Insects

Title:		"Phenological Features of the Spongy Moth, Lymantria dispar (L.) (Lepidoptera: Erebidae), in the Northernmost Portions of Its Eurasian Range"
Author(s):		Ponomarev VI; Klobukov GI; Napalkova VV; Akhanaev YB; Pavlushin SV; Yakimova ME; Subbotina AO; Picq S; Cusson M; Martemyanov VV;
Address:		"Institute Botanic Garden UB RAS, 8 Marta Str., 202a, 620144 Ekaterinburg, Russia. Institute of Animal Systematics and Ecology SB RAS, Frunze Str. 11, 630091 Novosibirsk, Russia. Department of Natural Sciences, Novosibirsk State University, Pirogova 2, 630090 Novosibirsk, Russia. Laurentian Forestry Centre, Natural Resources Canada, Quebec City, QC G1V 4C7, Canada. Biological Institute, National Research Tomsk State University, Lenina Str. 36, 63450 Tomsk, Russia"
Journal Title:		Insects
Year:		2023
Volume:		20230309
Issue:		3
Page Number:		-
DOI:		10.3390/insects14030276
ISSN/ISBN:		2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking)
Abstract:		"The spongy moth, Lymatria dispar, is a classic example of an invasive pest accidentally introduced from Europe to North America, where it has become one of the most serious forest defoliators, as in its native range. The present study was aimed at (i) identifying the current northern limit of L. dispar's Eurasian range and exploring its northward expansion in Canada using pheromone trap data, and (ii) comparing northern Eurasian populations with those from central and southern regions with respect to male flight phenology, the sums of effective temperatures (SETs) above the 7 degrees C threshold necessary for development to the adult stage, and heat availability. We show that the range of L. dispar in Eurasia now reaches the 61st parallel, and comparisons with historical data identify the average speed of spread as 50 km/year. We also document the northern progression of L. dispar in southern Canada, where the actual northern boundary of its range remains to be identified. We show that the median date of male flight does not vary greatly between northern and southern regions of the spongy moth range in Eurasia despite climate differences. Synchronization of flight at different latitudes of the range is associated with an acceleration of larval development in northern Eurasian populations. Similar changes in developmental rate along a latitudinal gradient have not been documented for North American populations. Thus, we argue that this feature of spongy moths from northern Eurasia poses a significant invasive threat to North America in terms of enhanced risks for rapid northward range expansion"
Keywords:		climate change gypsy moth invasion northern limit of the range pheromone monitoring sum of effective temperatures;
Notes:		"PubMed-not-MEDLINEPonomarev, Vasiliy I Klobukov, Georgiy I Napalkova, Viktoria V Akhanaev, Yuriy B Pavlushin, Sergey V Yakimova, Maria E Subbotina, Anna O Picq, Sandrine Cusson, Michel Martemyanov, Vyacheslav V eng 20-64-46011/Russian Science Foundation/ capital A, Cyrilliccapital A, Cyrilliccapital A, Cyrilliccapital A, Cyrillic-capital A, Cyrillic17-117072810009-8/The Federal Fundamental Scientific Research Programmes for 2021-2025/ FWGS-2021-0003/The Federal Fundamental Scientific Research Programmes for 2021-2025/ Switzerland 2023/03/29 Insects. 2023 Mar 9; 14(3):276. doi: 10.3390/insects14030276"