Allan, J. D. 1995. Stream Ecology. Structure and Function of Running Waters. Chapman and Hall, London.

[APHA, AWWA & WEF] American Public Health Association, American Water Works Association & Water Environment Federation. 1992. Standard Methods for the Examination of Water and Wastewater. 18th edn. American Public Health Association, Washington, D.C.

AQEM Consortium. 2002. Manual for the Application of the AQEM System. A Comprehensive Method to Assess European Streams Using Benthic Macroinvertebrates, Developed for the Purpose of the Water Framework Directive. Version 1.0, February 2002.

Beisel, J. N., Usseglio-Polatera, P. & Moreteau, J. C. 2000. The spatial heterogeneity of a river bottom: a key factor determining macroinvertebrate communities. Hydrobiologia, 422/423, 163–171.
doi:10.1023/A:1017094606335

Borcard, D., Legendre, P. & Drapeau, P. 1992. Partialling out the spatial component of ecological variation. Ecology, 73(3), 1045–1055.
doi:10.2307/1940179

Boyero, L. 2003. Multiscale patterns of spatial variation in stream macroinvertebrate communities. Ecol. Res., 18, 365–379.
doi:10.1046/j.1440-1703.2003.00562.x

Briede, A., Springe, G. & Skuja, A. 2006. Role of environmental factors in structuring stream biodiversity in Latvia according to WFD. In XXIV Nordic Hydrological Conference. Nordic Association for Hydrology, NHP report No. 49, 55–63.

Brown, B. L. 2003. Spatial heterogeneity reduces temporal variability in stream insect communities. Ecol. Lett., 6, 316–325.
doi:10.1046/j.1461-0248.2003.00431.x

Céréghino, R., Giraudel, J. L. & Compin, A. 2001. Spatial analysis of stream invertebrates distribution in the Adour-Garonne drainage basin (France), using Kohonen self organizing maps. Ecol. Modell., 146, 167–180.
doi:10.1016/S0304-3800(01)00304-0

Costa, S. & Melo, A. S. 2008. Beta diversity in stream macroinvertebrate assemblages: among-site and among-microhabitat components. Hydrobiologia, 598, 131–138.
doi:10.1007/s10750-007-9145-7

Cummins, K. W. & Klug, M. J. 1979. Feeding ecology of stream invertebrates. Annu. Rev. Ecol. Syst., 10, 147–172.
doi:10.1146/annurev.es.10.110179.001051

Cummins, K. W. & Lauff, G. H. 1969. The influence of substrate particle size on the micro­distribution of stream macrobenthos. Hydrobiologia, 34(2), 145–181.
doi:10.1007/BF00141925

Dohet, A. 2002. Are caddisflies an ideal group for the biological assessment of water quality in streams? Nova Suppl. Ent., 15, 507–520.

Downes, B. J., Hindell, J. S. & Bond, N. R. 2000. What’s in a site? Variation in lotic macro­invertebrate density and diversity in a spatially replicated experiment. Aust. J. Ecol., 25, 128–139.
doi:10.1111/j.1442-9993.2000.tb00013.x

Edington, J. M. & Hildrew, A. G. 2005. A revised key to the caseless caddis larvae of the British Isles, with notes on their ecology. FBA Scientific Publication, No. 53.

Frissell, C. A., Liss, W. J., Warren, C. E. & Hurley, M. D. 1986. A hierarchical framework for stream habitat classification: referees for particularly constructive and thoughtful viewing streams in a watershed context. J. Environ. Manage., 10, 199–214.
doi:10.1007/BF01867358

Galbraith, H. S., Vaughn, C. C. & Meier, K. C. 2008. Environmental variables interact across spatial scales to structure trichopteran assemblages in Ouachita Mountain rivers. Hydro­biologia, 596, 401–411.
doi:10.1007/s10750-007-9124-z

Georgian, T. & Thorp, J. H. 1992. Effects of microhabitat selection on feeding rates of net-spinning caddisfly larvae. Ecology, 73(1), 229–240.
doi:10.2307/1938734

Grimaldi, D. & Engel, M. S. 2005. Evolution of the Insects. Cambridge University Press, New York.

Gurtz, M. E. & Wallace, B. J. 1986. Substratum–production relationships in net-spinning caddisflies (Trichoptera) in disturbed and undisturbed hardwood catchments. J. N. Am. Benthol. Soc., 5(3), 230–236.
doi:10.2307/1467710

Harper, D. & Everard, M. 1998. Why should the habitat-level approach underpin holistic river survey and management? Aquat. Conserv., 8, 395–413.
doi:10.1002/(SICI)1099-0755(199807/08)8:4<395::AID-AQC297>3.0.CO;2-X

Heino, J., Parviainen, J., Paavola, R., Jehle, M., Louhi, P. & Muotka, T. 2005. Characterizing macro­invertebrate assemblage structure in relation to stream size and tributary position. Hydrobiologia, 539, 121–130.
doi:10.1007/s10750-004-3914-3

Hering, D., Moog, O., Sandin, L. & Verdonschot, P. F. M. 2004. Overview and application of the AQEM assessment system. Hydrobiologia, 516, 1–20.
doi:10.1023/B:HYDR.0000025255.70009.a5

Hill, M. O. & Šmilauer, P. 2005. TWINSPAN for Windows version 2.3. Centre for Ecology and Hydrology & University of South Bohemia, Huntington & Ceske Budejovice.

Hoffmann, A. 2000. The association of the stream caddisfly Lasiocephala basalis (KOL.) (Trichoptera: Lepidostomatidae) with wood. Int. Rev. Hydrobiol., 85(1), 79–93.
doi:10.1002/(SICI)1522-2632(200003)85:1<79::AID-IROH79>3.0.CO;2-U

Illies, J. 1978. Limnofauna Europea. A Checklist of the Animals Inhabiting European Inland Waters with Accounts of their Distribution and Ecology (except Protozoa). 2nd edn. Gustav Fischer Verlag, Stuttgart.

Kachalova, O. 1972. Trichoptera of Latvian Rivers. Zinātne, Rīga (in Russian).

Kļaviņš, M., Rodinovs, V. & Kokorīte, I. 2002. Chemistry of Surface Waters in Latvia. University of Latvia, Rīga.

Lepneva, S. G. 1964. Trichoptera. Larvae and Pupae of the Annulipalpia. Fauna of the USSR, 2 (1). Leningrad, Nauka (in Russian).

Lepneva, S. G. 1966. Trichoptera. Larvae and Pupae of the Integripalpia. Fauna of the USSR, 2 (2). Leningrad, Nauka (in Russian).

Lepš, J. & Šmilauer, P. 2003. Multivariate Analysis of Ecological Data using CANOCO. Cambridge University Press, Cambridge.

Levin, S. A. 1992. The problem of pattern and scale in ecology. Ecology, 73, 1943–1967.
doi:10.2307/1941447

Li, J., Herlihy, A., Gerth, W., Kaufmann, P., Gregory, S., Urquhart, S. & Larsen, D. P. 2001. Variability in stream macroinvertebrates at multiple spatial scales. Freshwater Biol., 46, 87–97.
doi:10.1046/j.1365-2427.2001.00628.x

Mackay, R. J. & Wiggins, G. B. 1979. Ecological diversity in Trichoptera. Annu. Rev. Entomol., 24, 185–208.
doi:10.1146/annurev.en.24.010179.001153

Poff, L. N. 1997. Landscape filters and species traits: towards mechanistic understanding and prediction in stream ecology. J. N. Am. Benthol. Soc., 16(2), 391–409.
doi:10.2307/1468026

Reid, M. A. & Thoms, M. C. 2008. Surface flow types, near-bed hydraulics and the distribution of stream macroinvertebrates. Biogeosci. Discuss., 5, 1175–1204.
doi:10.5194/bgd-5-1175-2008

Resh, V. H. & Rosenberg, D. M. 1984. The Ecology of Aquatic Insects. Praeger Publishers, New York.

Sandin, L. & Johnson, R. K. 2004. Local, landscape and regional factors structuring benthic macroinvertebrate assemblages in Swedish streams. Landscape Ecol., 19, 501–514.
doi:10.1023/B:LAND.0000036116.44231.1c

Schmera, D. 2004. Spatial distribution and coexistence patterns of caddisfly larvae (Trichoptera) in a Hungarian stream. Int. Rev. Hydrobiol., 89, 51–57.
doi:10.1002/iroh.200310630

Slack, H. D. 1936. The food of caddis fly (Trichoptera) larvae. J. Anim. Ecol., 5(1), 105–115.
doi:10.2307/1095

Soininen, J. & Könönen, K. 2004. Comparative study of monitoring South-Finnish rivers and streams using macroinvertebrate and benthic diatom community structure. Aquat. Ecol., 38, 63–75.
doi:10.1023/B:AECO.0000021004.06965.bd

Springe, G., Sandin, L., Briede, A. & Skuja, A. 2006. Biological quality metrics: their variability and appropriate scale for assessing streams. Hydrobiologia, 566, 153–172.
doi:10.1007/s10750-006-0099-y

Spuris, Z. D. 1967. The Caddisfly Fauna of the Lakes of Latvia. Zinātne, Rīga (in Russian).

STAR site protocol. 2010. http://www.eu-star.at/frameset.htm (visited 2010-04-04).

Stinkulis, G. 1999. Field trip “Devonian” guidebook. In The Fourth Baltic Stratigraphic Conference: Problems and Methods of Modern Regional Stratigraphy (Lukševičs, E., Stinkulis, Ģ. & Kalniņa, L., eds), p. 50. University of Latvia, Jurmala.

Ter Braak, C. J. F. & Šmilauer, P. 2002. CANOCO Reference Manual and CanoDraw for Windows User’s Guide. Software for Canonical Community Ordination (version 4.5). Microcomputer Power, Ithaca, NY, USA.

Timm, H., Mardi, K. & Möls, T. 2008. Macroinvertebrates in Estonian streams: the effects of habitat, season, and sampling effort on some common metrics of biological quality. Estonian J. Ecol., 57, 37–57.
doi:10.3176/eco.2008.1.03

Urbanič, G., Toman, M. J. & Krušnik, C. 2005. Microhabitat type selection of caddisfly larvae (Insecta: Trichoptera) in a shallow lowland stream. Hydrobiologia, 541, 1–12.
doi:10.1007/s10750-004-4314-4

Vannote, R. L., Minshall, G. W., Cummins, K. W., Sedell, J. R. & Cushing, C. E. 1980. The river continuum concept. Can. J. Fish. Aquat. Sci., 37, 130–137.
doi:10.1139/f80-017

Wallace, J. B. & Merritt, R. W. 1980. Filter-feeding ecology of aquatic insects. Annu. Rev. Entomol., 25, 103–132.
doi:10.1146/annurev.en.25.010180.000535

Wallace, I. D., Wallace, B. & Philipson, G. N. 2003. Keys to the case-bearing caddis larvae of Britain and Ireland. Freshwater Biological Association Scientific Publication, No. 61.

Ward, J. V. 1992. Aquatic Insect Ecology. 1. Biology and Habitat. John Wiley & Sons, Inc., Canada.