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Scale asymmetries and lateral rib duplication in snakes: correlates and effects on locomotor performance
Thermally‐induced scale asymmetries in reptiles are often considered to be indicative of underlying osteological deformities that incur fitness costs. However, this typically rests on subjective plausibility arguments and anecdotal reports about links between deformities and fitness, as well as between superficial asymmetries and deeper deformities rather than on empirical data. To shed light on these issues, we used a combination of X‐rays of museum specimens and locomotor performance trials of hatchlings grass snakes (Natrix natrix) incubated in the laboratory at either 25 °C or 31 °C. We found that 30% of the mu...
Source: Biological Journal of the Linnean Society - August 19, 2016 Category: Research Authors: Kristin L öwenborg, Mattias Hagman Tags: Research Article Source Type: research

Mediterranean scrubland and elevation drive gene flow of a Mediterranean carnivore, the Egyptian mongoose Herpestes ichneumon (Herpestidae)
Biological Journal of the Linnean Society, EarlyView. (Source: Biological Journal of the Linnean Society)
Source: Biological Journal of the Linnean Society - August 19, 2016 Category: Research Authors: T ânia Barros, Samuel A. Cushman, João Carvalho, Carlos Fonseca Source Type: research

Scale asymmetries and lateral rib duplication in snakes: correlates and effects on locomotor performance
Biological Journal of the Linnean Society, EarlyView. (Source: Biological Journal of the Linnean Society)
Source: Biological Journal of the Linnean Society - August 19, 2016 Category: Research Authors: Kristin L öwenborg, Mattias Hagman Source Type: research

Mediterranean scrubland and elevation drive gene flow of a Mediterranean carnivore, the Egyptian mongoose Herpestes ichneumon (Herpestidae)
Biological Journal of the Linnean Society, EarlyView. (Source: Biological Journal of the Linnean Society)
Source: Biological Journal of the Linnean Society - August 19, 2016 Category: Research Authors: T ânia Barros , Samuel A. Cushman , João Carvalho , Carlos Fonseca Source Type: research

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Biological Journal of the Linnean Society, Ahead of Print. (Source: Biological Journal of the Linnean Society)
Source: Biological Journal of the Linnean Society - August 19, 2016 Category: Research Source Type: research

Mediterranean scrubland and elevation drive gene flow of a Mediterranean carnivore, the Egyptian mongoose Herpestes ichneumon (Herpestidae)
Identifying the environmental features affecting gene flow across a species range is of extreme importance for conservation planning. We investigated the genetic structure of the Egyptian mongoose (Herpestes ichneumon) in Western Iberian Peninsula by analyzing the correlations between genetic distances and landscape resistance models. We evaluated several functional relationships between elevation, vegetation cover, temperature, and genetic differentiation under the original and reciprocal causal modelling approaches. Additionally, we assessed evidence of isolation‐by‐distance (IBD) in the mongoose population. Original...
Source: Biological Journal of the Linnean Society - August 18, 2016 Category: Research Authors: T ânia Barros, Samuel A. Cushman, João Carvalho, Carlos Fonseca Tags: Research Article Source Type: research

Production and sex ‐pheromonal activity of alkaloid‐derived androconial compounds in the danaine butterfly, Parantica sita (Lepidoptera: Nymphalidae: Danainae)
Close associations of certain lepidopteran taxa with pyrrolizidine alkaloids (PAs), a typical class of plant secondary metabolites, have been well documented from the perspective of evolutionary ecology. Male danaine butterflies are thought to utilize PAs as precursors for the production of dihydropyrrolizines [e.g. danaidone (DO) and hydroxydanaidal (HD)] in their two distinct androconial organs, viz. alar scent organs (sex brands) and abdominal hairpencils. However, little is known about the quantitative profiles of these compounds in danaines, the mechanism for their formation in the androconial organs, or their biologi...
Source: Biological Journal of the Linnean Society - August 17, 2016 Category: Research Authors: Keiichi Honda, Yasuyuki Honda, Junya Matsumoto, Yoshiaki Tsuruta, Wataru Yagi, Hisashi Ômura, Hiroshi Honda Tags: Research Article Source Type: research

Production and sex ‐pheromonal activity of alkaloid‐derived androconial compounds in the danaine butterfly, Parantica sita (Lepidoptera: Nymphalidae: Danainae)
Biological Journal of the Linnean Society,Volume 119, Issue 4, Page 1036-1059, December 2016. (Source: Biological Journal of the Linnean Society)
Source: Biological Journal of the Linnean Society - August 17, 2016 Category: Research Authors: Keiichi Honda, Yasuyuki Honda, Junya Matsumoto, Yoshiaki Tsuruta, Wataru Yagi, Hisashi Ômura, Hiroshi Honda Source Type: research

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Biological Journal of the Linnean Society,Volume 119, Issue 4, Page 1036-1059, December 2016. (Source: Biological Journal of the Linnean Society)
Source: Biological Journal of the Linnean Society - August 17, 2016 Category: Research Source Type: research