Fig 3 - uploaded by Alexander Bach
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Monthly captures of Diplocephalus graecus from lavender fields in Auvergne-Rhône-Alpes, France (Arachnologische Gesellschaft 2023). The bar chart illustrates the number of specimens of Diplocephalus graecus captured per month, from January to December
Source publication
Diplocephalus graecus (O. Pickard-Cambridge, 1873), a very common holomediterranean species, has undergone a remark-
able range expansion in the western Palaearctic region over the past two decades. Recently, the species was found for the first time in Germany in a field near Aachen (North Rhine-Westphalia). We traced the potential dispersal path o...
Contexts in source publication
Context 1
... tibial apophysis (Fig. 2d). Females can be distinguished by the wide median fissure with a me dian constriction between the epigynal plates ( Fig. 2f ), which is notably wider compared to other species of the genus in Central Europe. Phenology. The population of Diplocephalus graecus in France exhibits a distinct phenological pattern (Fig. 3), characterized by a pronounced concentration during the winter months spanning from November to February. Conversely, minimal presence of individuals was observed from April to ...
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... with other similar species, such as Silometopus ambiguus (O. PickardCambridge, 1906), which also occurs in coastal habitats (Blick 2014), is possi ble (Barrientos 2014). In this regard, considering the species' phenology is crucial, as its peak activity has been observed in the winter months of November and December ( Bonte et al. 2002, Fig. 3). The phenological niche, as a strategy for avoid ing competition, could be one of the factors that facilitates the dispersal of D. graecus, as only a fraction of spider species in Central Europe are active during the winter months (Bu char 1968). In regions with suitable climates, this should be considered when designing and ...
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... gratefully acknowledge their support. Furthermore, we would like to express our sincere gratitude to Hubert Höfer for providing helpful comments and for his effort in preparing the habitus and genital images and to Theo Blick for his constructive comments and for providing the data shown in Figure 3. Additionally, we extend our appreciation to Tobias Bauer for his contributions in providing insightful feedback and for his friendly guidance during the submission process. ...
