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Carabid beetles in fragments of coniferous forest

Annales zoologici fennici, 1993-01, Vol.30 (1), p.17-30 [Peer Reviewed Journal]

1993 Finnish Zoological Publishing Board ;1993 INIST-CNRS ;ISSN: 0003-455X ;EISSN: 1797-2450 ;CODEN: AZOFAO

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  • Title:
    Carabid beetles in fragments of coniferous forest
  • Author: Halme, Eero ; Niemelä, Jari
  • Subjects: Animal and plant ecology ; Animal, plant and microbial ecology ; Beetles ; Biological and medical sciences ; Boreal forests ; Carabidae ; Coleoptera ; Coniferous forests ; Edge effects ; Fauna ; Forest habitats ; Fundamental and applied biological sciences. Psychology ; Habitat conservation ; Habitat fragmentation ; Invertebrates ; Plants ; Synecology ; Terrestrial ecosystems ; Vegetation
  • Is Part Of: Annales zoologici fennici, 1993-01, Vol.30 (1), p.17-30
  • Description: We compared samples of carabid beetles (Coleoptera, Carabidae) from fifteen forest fragments in a suburban-agricultural setting with catches from a nearby large contiguous forest in Espoo, southern Finland. Forest fragments were relatively similar in vegetation and ranged in area from 0.5 to 21.5 ha. Samples were collected by pitfall traps from forest-fragment interior and edge and from the surrounding agro-urban environment. Abundance and species richness of carabids was lowest in the contiguous forest and highest in the fragment surroundings. Contiguous forest had none, large (9.6—21.5 ha) and medium-sized forest fragments (4.2—8.2 ha) a few, and small fragments (0.5—3.0 ha) several species typically found in the surrounding open habitats. High carabid diversity in the small fragments and in the surroundings was probably related to the higher vegetational diversity in such sites. High diversity of vegetation, in turn, was due to moderate human disturbance and effects of vegetation succession. Most of the abundant carabid species were non-randomly distributed among the habitat types. Some specialized forest carabids were caught exclusively in contiguous forest and only the most generalized forest species were obtained from small forest fragments. These results indicate that in order to preserve the integrity of forest arthropod faunas in urban areas it is essential to leave large, continuous forest tracts untouched to preserve specialist species and forest species assemblages.
  • Publisher: Helsinki: Finnish Zoological Publishing Board, formed by the Finnish Academy of Sciences, Societas Biologica Fennica Vanamo, Societas pro Fauna et Flora Fennica, and Societas Scientiarum Fennica
  • Language: English
  • Identifier: ISSN: 0003-455X
    EISSN: 1797-2450
    CODEN: AZOFAO
  • Source: Open Access: Freely Accessible Journals by multiple vendors
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