Small-scale variation in sexual size dimorphism and sex ratio in the aquatic moth Acentria ephemerella Denis and Schiffermüller, 1775 (Lepidoptera: Crambidae)

Miler, Oliver; Gross, Elisabeth; Straile, Dietmar

Small-scale variation in sexual size dimorphism and sex ratio in the aquatic moth Acentria ephemerella Denis and Schiffermüller, 1775 (Lepidoptera: Crambidae)

Files

Miler_0-307751.pdf(393.84 KB)

Date

2014

Authors

Miler, Oliver

Gross, Elisabeth

Straile, Dietmar

Publication type

Journal article

Publication status

Published

Published in

Aquatic Insects ; 36 (2014), 3-4. - pp. 187-199. - ISSN 0165-0424. - eISSN 1744-4152

Abstract

The aquatic herbivorous and capital-breeding moth Acentria ephemerella Denis and Schiffermüller, 1775 feeds on submerged pondweeds, Potamogeton spp., and is highly preyed upon by fish in the littoral zone. We studied the spatiotemporal within-lake variability of length, sexual size dimorphism (SSD) and sex ratio of A. ephemerella pupae and of larval population densities. Population densities at three sampling sites strongly increased from July to August and were significantly higher at the Reichenau site in July. Acentria ephemerella sex ratio was male-biased at the Güttingen and Hagnau sites, but showed unbiased or slightly biased sex ratios at Reichenau. The SSD was strongly female-biased. Female size and SSD declined during summer, possibly due to reduced food quantity/quality. The SSD was highest at Reichenau, with little to no differences between Hagnau and Güttingen. At Reichenau, the high population size in July coincided with an unbiased sex ratio, and large SSD/female size due to multiple, possibly interacting factors, including fish predation.

Subject (DDC)

570 Biosciences, Biology

Cite This

ISO 690

MILER, Oliver, Elisabeth GROSS, Dietmar STRAILE, 2014. Small-scale variation in sexual size dimorphism and sex ratio in the aquatic moth Acentria ephemerella Denis and Schiffermüller, 1775 (Lepidoptera: Crambidae). In: Aquatic Insects. 36(3-4), pp. 187-199. ISSN 0165-0424. eISSN 1744-4152. Available under: doi: 10.1080/01650424.2015.1066015

BibTex

@article{Miler2014Small-32187,
  year={2014},
  doi={10.1080/01650424.2015.1066015},
  title={Small-scale variation in sexual size dimorphism and sex ratio in the aquatic moth Acentria ephemerella Denis and Schiffermüller, 1775 (Lepidoptera: Crambidae)},
  number={3-4},
  volume={36},
  issn={0165-0424},
  journal={Aquatic Insects},
  pages={187--199},
  author={Miler, Oliver and Gross, Elisabeth and Straile, Dietmar}
}

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Bibliography of Konstanz

Yes