Mermessus trilobatus (Emerton, 1882) [pavučenka trojlaločná]

Kvadráty: 5644 5852 5953 6757 7065 6162 6050 7161 6474 6267 7151 6369 5961 7068 6764 6569 6751 6952 5560 7053 7155 7052 7267 5651 5959 5645

	Records by time
	Linyphiidae	0-1900	1901-1950	1951-2000	2001-2021	∑
Mermessus trilobatus (Emerton, 1882) Not endangered				38×	38×

Mermessus trilobatus (Emerton, 1882)

Czech name	pavučenka trojlaločná
Threat level	Not endangered
Records	38 nálezů, 26 kvadrátů
First record	2007, A. Roušar, in litt.
Last record	2022 , Antonín Roušar
Distribution area	Holarctic
Phytogeographic area	Thermo, Meso
Původnost stanovišť	semi-natural, disturbed
Stratum	Ground layer
Hojnost výskytu	scarce
Altitude	150-650

Bibliography

Spiders newly observed in Czechia in recent years – overlooked or invasive species?

To learn whether the recent increase in the number of Central European spider species reflects a still-incomplete state of faunistic research or real temporal changes in the Central European fauna, we evaluated the records of 47 new species observed in 2008–2020 in Czechia, one of the faunistically best researched regions in Europe. Because of the intensified transportation of materials, enabling the introduction of alien species, and perhaps also because of climatic changes that allow thermophilic species to expand northward, the spider fauna of this region is dynamic. Our analysis showed that only 15 spider species newly recorded in Czechia likely belong to the indigenous fauna. The remaining two-thirds likely appeared in this region recently. Half of these species are likely thermophilic species that expanded their distribution to the north, possibly due to global warming, and the second half are subtropical or tropical species introduced to heated buildings. Only three species were introduced to natural habitats, and only two of them, Mermessus trilobatus and Erigone autumnalis (Linyphiidae), can be considered true invasive species.

První nález pavouka Mermessus trilobatus (Araneae) v jižních Čechách. First record of spider Mermessus trilobatus (Araneae) in South Bohemia.

Mermessus trilobatus (Emerton, 1882) (Araneae, Linyphiidae) – nový druh pavučenky v České republice

Gallery

Statistics

By month

By altitude

By collecting method (38 used records)

Mermessus trilobatus (Emerton, 1882) ES	Males	Females	Juveniles	Records
Prosev	2	1	0	3
Smyk	5	4	0	6
Individuální sběr	4	5	0	4
Neurčeno	4	1	0	5
Zemní past	33	19	0	18
Vysavač	1	2	0	1
Žlutá miska	1	0	0	1
	Males	Females	Juveniles	Records

By biotope (38 used records)

Mermessus trilobatus (Emerton, 1882) ES	Males	Females	Juveniles	Records
Bylinné porosty břehů	1	0	0	1
Skalní stepi na jiných horninách	1	0	0	1
Louky	2	2	0	2
Rašeliniště	0	1	0	1
Neurčeno	18	6	0	16
Lesní okraje	4	0	0	2
Mezofilní louky	3	4	0	3
Kamenolomy	1	1	0	1
Ostřicové porosty stojatých vod	0	1	0	1
Mokré louky	0	1	0	1
Výsadby listnáčů	0	0	0	1
Suché doubravy	12	12	0	2
Těžebny písku a jiných nezpevněných hornin	0	1	0	1
Suché lesní lemy	5	2	0	1
Suťové a roklinové lesy	1	0	0	1
Písčité břehy	1	0	0	1
Rákosiny a orobincové porosty stojatých vod	1	0	0	1
Kamenité suti nižších poloh	0	1	0	1
	Males	Females	Juveniles	Records

Mermessus trilobatus (Emerton, 1882) [pavučenka trojlaločná]

Genus: Mermessus, Family: Linyphiidae