The life cycle of Onychogomphus uncatus (Charpentier, 1840) (Odonata: Gomphidae) in the Sierra Morena Mountains (southern Spain): an example of protracted larval development in the Mediterranean basin

Ferreras‐Romero, Manuel; Atienzar, M. Dolores; Corbet, Philip S.

doi:10.1127/archiv-hydrobiol/144/1999/215

Cited by 18 publications

(16 citation statements)

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“…The results of our regression analysis on latitude are in accordance with the general findings of Corbet et al (2006) for odonates. Similar results have been obtained for another gomphid species along a transect from southern France to Morocco (Ferreras‐Romero et al , 1999).…”

Section: Discussionsupporting

confidence: 86%

Voltinism flexibility of a riverine dragonfly along thermal gradients

Braune

Richter

Söndgerath

et al. 2007

Global Change Biology

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Potential effects of future warming should be reflected in life history patterns of aquatic organisms observed in warmer climates or in habitats that are different in ambient temperature. In the special case of the dragonfly Gomphus vulgatissimus (L.) (Odonata: Gomphidae) previous research suggests that voltinism decreases from south to north. We analysed data on voltinism from 11 sample sites along a latitudinal gradient from about 441N to 531N, comprising small streams to medium-sized rivers. Furthermore, to simulate different conditions and to allow projections for future climate change scenarios, we developed a population dynamic model based on a projection matrix approach. The parameters of the model are dependent on temperature and day length. Our field results indicate a decrease in voltinism along the latitudinal gradient from southern to northern Europe and a corresponding increase of voltinism with higher temperatures. An increase in voltinism with width of the running water implies an effect of varying habitat temperature. Under the impact of global warming, our model predicts an increased development speed, particularly in the northern part of the latitudinal gradient, an extension of the northern range limit and changes in phenology of G. vulgatissimus, leading to an extension of the flight season in certain regions along the gradient.

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Section: Discussionsupporting

confidence: 86%

Voltinism flexibility of a riverine dragonfly along thermal gradients

Braune

Richter

Söndgerath

et al. 2007

Global Change Biology

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“…Cohortsplitting is well documented in gomphids (e.g. Aoki, 1999;Ferreras-Romero et al, 1999) and also in the studied species . Among its causes, water temperature and intraspecific competition for food have been stressed (e.g.…”

Section: Discussionmentioning

confidence: 99%

Sex ratio in Gomphidae (Odonata) at emergence: is there a relationship with water temperature?

Farkas¹,

Jakab²,

Müller³

et al. 2013

International Journal of Odonatology

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Although the sex ratio of Odonata at emergence has received much attention, we are still far from understanding the exact causes of its variability and imbalance. In this paper we studied the sex ratios at emergence in natural populations of two Gomphus species based on samples of exuviae taken from two European lowland rivers. We hypothesized a possible relationship between the water temperature during larval development and the sex ratio at emergence. Sex ratio records exhibited no consistent bias towards one sex but varied between habitats and years in both species. We found correlations between sex ratio and water temperature in the year preceding emergence. Furthermore, the correlation between sex ratios and water temperature was in opposite directions in the two congeneric species, which may be attributed to differences in their voltinisms. We conclude that the effect of water temperature can be mediated through cohort-splitting; temperature-dependent development of minor cohorts, including unequal proportions of males and females due to the faster development of male larvae, affects the sex ratio at emergence. The supposed effect does not cause a long-term consistent bias, but may explain the year-to-year variations.

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“…higher latitudes and altitudes (Thompson, 1978;Norling, 1984;Corbet et al, 2006). The main purpose of this study was to compare the patterns of larval growth and voltinism recorded for these two species on a cold high plateau on the Iberian Peninsula, with the results of previous studies done in the warm mountain ranges of southern Spain (Ferreras-Romero, 1997;Ferreras-Romero et al, 1999).…”

Section: Introductionmentioning

confidence: 89%

“…On the other hand, O. uncatus lacks embryonic diapause and in the fi eld (southern France) eggs hatch about four weeks after being laid (Schütte et al, 1998). In southern Spain this species has a protracted, fl exible larval development, completed in two or three years, and mainly has summer species characteristics (Ferreras-Romero et al, 1999). In southern France O. uncatus is known to develop in three years (Shütte et al, 1998), and may appear both as a summer species (cf.…”

Section: Methodsmentioning

confidence: 99%

The life cycles of Boyeria irene and Onychogomphus uncatus (Odonata: Aeshnidae, Gomphidae) in western Spain: A biometric study

Velasco-Villanueva¹,

Campos²,

Norling³

et al. 2018

Eur. J. Entomol.

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http://www.eje.cz Gomphid dragonfl ies typically occur in streams and rivers, where larvae of the genus Onychogomphus Selys, 1854 live as burrowers, O. uncatus in sand, gravel and between stones (Suhling & Müller, 1996). The aeshnid Boyeria irene (Fonscolombe, 1838) also develops in streams, but its larvae live as claspers on the bottoms of streams. Except in the early stadia they are dark and uniform in colour, and exhibit refl ex immobilization (Robert, 1958; Corbet, 1999). Both B. irene and Onychogomphus uncatus (Charpentier, 1840) range from Central Europe to northern Africa, and some western Mediterranean islands (Askew, 2004; Boudot & Dommanget, 2015; Boudot et al., 2015); but O. uncatus was last recorded on the borders of Switzerland and Germany more than twenty years ago, and B. irene persists only in one or two populations in Germany (Suhling & Müller, 1996; Clausnitzer et al., 2010). In the broad sense both are restricted to the western Mediterranean (Ferreras-Romero, 1999; Boudot et al., 2009). Information on the life cycles of B. irene and O. uncatus throughout their distributions is relatively scarce. In southern Spain B. irene is mainly a semivoltine "summer species"

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The life cycle of Onychogomphus uncatus (Charpentier, 1840) (Odonata: Gomphidae) in the Sierra Morena Mountains (southern Spain): an example of protracted larval development in the Mediterranean basin

Cited by 18 publications

References 0 publications

Voltinism flexibility of a riverine dragonfly along thermal gradients

Voltinism flexibility of a riverine dragonfly along thermal gradients

Sex ratio in Gomphidae (Odonata) at emergence: is there a relationship with water temperature?

The life cycles of Boyeria irene and Onychogomphus uncatus (Odonata: Aeshnidae, Gomphidae) in western Spain: A biometric study

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