Issue |
Knowl. Manag. Aquat. Ecosyst.
Number 417, 2016
|
|
---|---|---|
Article Number | 29 | |
Number of page(s) | 13 | |
DOI | https://doi.org/10.1051/kmae/2016016 | |
Published online | 24 June 2016 |
Research paper
Aquatic beetles (Coleoptera) in springs of a small lowland river: habitat factors vs. landscape factors
Les coléoptères aquatiques (Coleoptera) des sources d’une petite rivière de plaine : facteurs d’habitat vs. facteurs de paysage
1 Department of Ecology and Environmental Protection, University of Warmia and Mazury, Łódzki Square 3, 10-727 Olsztyn, Poland
2 Department of Zoology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
3 Department of Invertebrate Zoology and Limnology, University of Szczecin, Wąska 13, 71-415 Szczecin, Poland
4 Department of Zoology, Animal Ecology and Wildlife Management, University of Life Sciences, Akademicka 13, 20-033 Lublin, Poland
5 Department of Plant Taxonomy and Phytogeography, University of Szczecin, Wąska 13, 71-415 Szczecin, Poland
⋆ Corresponding author: joanna.pakulnicka@uwm.edu.pl
Received: 12 March 2016
Revised: 6 May 2016
Accepted: 12 May 2016
We identified the beetle fauna of springs of a small lowland river and attempted to determine the direction and magnitude of beetle migration between the springs and neighboring water bodies in the river valley, as well as the local environmental factors and landscape parameters that most influence the character of aquatic beetle assemblages in the springs. We studied springs of three limnological types, along the entire length of the river valley, and identified 42 beetle species. All types of springs were dominated by stagnobiontic species, which enter springs from other aquatic environments, mainly via dispersion by air. We also found a small proportion of crenophiles and a substantial proportion of rheophiles and tyrphophiles, which was linked to the close proximity of the river and dystrophic water bodies. The fauna of the springs was affected to a similar degree by local environmental factors and by landscape factors acting on a broader scale. This indicates the need for broader consideration of landscape factors, which are often neglected in ecological studies.
Résumé
Nous avons identifié la faune des coléoptères des sources d’une petite rivière de plaine et tenté de déterminer la direction et l’ampleur de la migration des coléoptères entre les sources et les plans d’eau voisins dans la vallée, ainsi que les facteurs environnementaux locaux et les paramètres du paysage qui influencent le plus le caractère des assemblages de coléoptères aquatiques dans les sources. Nous avons étudié les sources de trois types limnologiques, sur toute la longueur de la vallée de la rivière, et identifié 42 espèces de coléoptères. Tous les types de sources ont été dominés par des espèces stagnobiontes qui viennent d’autres milieux aquatiques, principalement par dispersion par voie aérienne. Nous avons également constaté une faible proportion de crénophiles et une proportion importante de rhéophiles et tyrphophiles, qui a été reliée à la proximité de plans d’eau et rivières dystrophiques. La faune des sources a été affectée à un degré similaire par des facteurs environnementaux locaux et par des facteurs paysagers agissant sur une plus grande échelle. Cela souligne la nécessité d’un examen plus large des facteurs de paysage, qui sont souvent négligés dans les études écologiques.
Key words: aquatic beetles / river valley / migration / synecological elements / landscape / environmental factors
Mots clés : coléoptères aquatiques / rivière / migration / éléments synécologiques / paysage / facteurs environnementaux
© J. Pakulnicka et al., published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License CC-BY-ND (http://creativecommons.org/licenses/by-nd/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. If you remix, transform, or build upon the material, you may not distribute the modified material.
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