Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Size related shifts in the physical habitat of two mayfly species (Ephemeroptera) |
| Abstract | 1. The spatial niche shifts of the nymphs of two mayfly species (Rhithrogena semicolorata and Ecdyonurus sp. gr. venosus) in relation to their growth were investigated in two lowland springs of northern Italy where they are dominant species. 2. Ordination of the different size classes of the two species revealed a canonical trend related to season and bottom roughness. 3. Larger nymphs of both species colonized rougher substrata. Differences between species in the roughness of areas colonized by small nymphs, which were very numerous, may have been due to competition for space. |
| Source | Freshwater biology (Print) 34, pp. 297–302 |
| Journal | Freshwater biology (Print) |
| Editor | Blackwell Scientific Publications., Edinburgh, Regno Unito |
| Year | 1995 |
| Type | Articolo in rivista |
| DOI | 10.1111/j.1365-2427.1995.tb00889.x |
| Authors | BUFFAGNI A; CROSA G; MARCHETTI R |
| Text | 190325 1995 10.1111/j.1365 2427.1995.tb00889.x Size related shifts in the physical habitat of two mayfly species Ephemeroptera BUFFAGNI A; CROSA G; MARCHETTI R Dipartimento di Scienze dell Ambiente e del Territorio, Sezione di Ecologia, Universita degli Studi di Milano, Via Emanueli, 15 20126 Milano, Italy 1. The spatial niche shifts of the nymphs of two mayfly species Rhithrogena semicolorata and Ecdyonurus sp. gr. venosus in relation to their growth were investigated in two lowland springs of northern Italy where they are dominant species. 2. Ordination of the different size classes of the two species revealed a canonical trend related to season and bottom roughness. 3. Larger nymphs of both species colonized rougher substrata. Differences between species in the roughness of areas colonized by small nymphs, which were very numerous, may have been due to competition for space. 34 Articolo in rivista Blackwell Scientific Publications. 0046 5070 Freshwater biology Print Freshwater biology Print Freshw. biol. Print andreastefano.buffagni BUFFAGNI ANDREA STEFANO |