J 2013

Diversity and biotic homogenization of urban land-snail faunas in relation to habitat types and macroclimate in 32 Central European cities

HORSÁK, Michal, Zdeňka LOSOSOVÁ, Tomáš ČEJKA, Lucie JUŘIČKOVÁ, Milan CHYTRÝ et. al.

Basic information

Original name

Diversity and biotic homogenization of urban land-snail faunas in relation to habitat types and macroclimate in 32 Central European cities

Authors

HORSÁK, Michal (203 Czech Republic, guarantor, belonging to the institution), Zdeňka LOSOSOVÁ (203 Czech Republic, belonging to the institution), Tomáš ČEJKA (703 Slovakia, belonging to the institution), Lucie JUŘIČKOVÁ (203 Czech Republic, belonging to the institution) and Milan CHYTRÝ (203 Czech Republic, belonging to the institution)

Edition

PLOS ONE, 2013, 1932-6203

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.534

RIV identification code

RIV/00216224:14310/13:00065799

Organization unit

Faculty of Science

UT WoS

000324401500081

Keywords in English

Biotic homogenization; non-native species; land snails; urban habitats; European cities

Tags

Změněno: 16/2/2018 16:56, prof. RNDr. Michal Horsák, Ph.D.

Abstract

V originále

The effects of non-native species invasions on community diversity and biotic homogenization have been described for various taxa in urban environments, but not for land snails. Here we relate the diversity of native and non-native land-snail urban faunas to urban habitat types and macroclimate, and analyse homogenization effects of non-native species across cities and within the main urban habitat types. Land-snail species were recorded in seven 1-ha plots in 32 cities of ten countries of Central Europe and Benelux (224 plots in total). Each plot represented one urban habitat type characterized by different management and a specific disturbance regime. For each plot, we obtained January, July and mean annual temperature and annual precipitation. Snail species were classified into either native or non-native. The effects of habitat type and macroclimate on the number of native and non-native species were analysed using generalized estimating equations; the homogenization effect of non-native species based on the Jaccard similarity index and homogenization index. We recorded 67 native and 20 non-native species. Besides being more numerous, native species also had much higher beta diversity than non-natives. There were significant differences between the studied habitat types in the numbers of native and non-native species, both of which decreased from less to heavily urbanized habitats. Macroclimate was more important for the number of non-native than native species; however in both cases the effect of climate on diversity was overridden by the effect of urban habitat type. This is the first study on urban land snails documenting that non-native land-snail species significantly contribute to homogenization among whole cities, but both the homogenization and diversification effects occur when individual habitat types are compared among cities. This indicates that the spread of non-native snail species may cause biotic homogenization, but it depends on scale and habitat type.

Links

IAA601630803, research and development project
Name: Makroekologická studie biodiverzity velkých měst: druhová bohatost, invaze a biotická homogenizace na příkladu dvou taxonomických skupin
Investor: Academy of Sciences of the Czech Republic, Macroecological patterns of urban biodiversity: species richness, invasions and biotic homogenization in two taxonomic groups