Seznam druhů sekáčů ČR

Původnost druhů

Thermophilic expanding species (E)

History: Absent from the region in the past – new records even from arachnologically well researched sites in the past.
Habitat: Often newly created habitats such as mining areas.
Distribution: Known to occur south of Central Europe, usually absent north of Central Europe.

Species introduced to buildings – expanding (I-B-E)

History: Newly introduced by humans and expanding their range.
Habitat: All kinds of heated buildings, absent in nature.
Distribution: Mainly subtropical regions.

Species introduced to buildings – non-expanding (I-B-N)

History: Newly introduced by humans.
Habitat: Large heated buildings with complex synanthropic habitats, such as large greenhouses with high air humidity and rich prey resources, absent in nature.
Distribution: Mainly tropical regions.

Species introduced to natural habitats – invasive (I-N-I)

History: Introduced by humans and expanding their range.
Habitat: Variety of natural habitats, often disturbed.
Distribution: Native on other continents, often North America.

Species introduced to natural habitats – non-invasive (I-N-N)

History: Newly introduced by humans.
Habitat: Disturbed habitats in nature.
Distribution: Sites of introduction isolated from the continuous distribution area of the species.

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