Ground Beetle (Coleoptera: Carabidae) Activity Density and Community Composition in Vegetationally Diverse Corn Agroecosystems

1997 ◽  
Vol 138 (1) ◽  
pp. 14 ◽  
Author(s):  
Daniel M. Pavuk ◽  
Foster F. Purrington ◽  
Charles E. Williams ◽  
Benjamin R. Stinner
Keyword(s):  
Community Composition ◽  
Ground Beetle ◽  
Activity Density

scholarly journals Long-term data reveal unimodal responses of ground beetle abundance to precipitation and land use but no changes in taxonomic and functional diversity

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Petr Zajicek ◽  
Ellen A. R. Welti ◽  
Nathan J. Baker ◽  
Kathrin Januschke ◽  
Oliver Brauner ◽  
...  
Keyword(s):  
Land Use ◽  
Functional Diversity ◽  
Spatial Scales ◽  
Ground Beetle ◽  
Temporal Trends ◽  
Ground Beetles ◽  
Community Change ◽  
Ecological Communities ◽  
Activity Density

AbstractWhile much of global biodiversity is undoubtedly under threat, the responses of ecological communities to changing climate, land use intensification, and long-term changes in both taxonomic and functional diversity over time, has still not been fully explored for many taxonomic groups, especially invertebrates. We compiled time series of ground beetles covering the past two decades from 40 sites located in five regions across Germany. We calculated site-based trends for 21 community metrics representing taxonomic and functional diversity of ground beetles, activity density (a proxy for abundance), and activity densities of functional groups. We assessed both overall and regional temporal trends and the influence of the global change drivers of temperature, precipitation, and land use on ground beetle communities. While we did not detect overall temporal changes in ground beetle taxonomic and functional diversity, taxonomic turnover changed within two regions, illustrating that community change at the local scale does not always correspond to patterns at broader spatial scales. Additionally, ground beetle activity density had a unimodal response to both annual precipitation and land use. Limited temporal change in ground beetle communities may indicate a shifting baseline, where community degradation was reached prior to the start of our observation in 1999. In addition, nonlinear responses of animal communities to environmental change present a challenge when quantifying temporal trends.

Ground Beetle (Coleoptera: Carabidae) Diversity, Activity Density, and Community Structure in a Diversified Agroecosystem

2012 ◽  
Vol 41 (1) ◽  
pp. 72-80 ◽  
Author(s):  
J. D. Hummel ◽  
L. M. Dosdall ◽  
G. W. Clayton ◽  
K. N. Harker ◽  
J. T. O'Donovan
Keyword(s):  
Community Structure ◽  
Ground Beetle ◽  
Activity Density

Effects of crop rotation and genetically modified herbicide-tolerant corn on ground beetle diversity, community structure, and activity density

2010 ◽  
Vol 142 (2) ◽  
pp. 143-159 ◽  
Author(s):  
S. Bourassa ◽  
H.A. Cárcamo ◽  
J.R. Spence ◽  
R.E. Blackshaw ◽  
K. Floate
Keyword(s):  
Community Structure ◽  
Weed Management ◽  
Genetically Modified ◽  
Ground Beetle ◽  
Ground Beetles ◽  
Weed Density ◽  
Activity Density ◽  
Herbicide Tolerant ◽  
Pterostichus Melanarius ◽  
Structure And Activity

AbstractGround beetles (Coleoptera: Carabidae) were sampled in conventional and genetically modified herbicide-tolerant (GMHT) corn, Zea mays L. (Poaceae), planted under rotation with canola, Brassica L. (Brassicaceae), or continuously cropped corn to investigate the influence of corn variety and rotation on the structure of carabid assemblages. Corn variety, cultivation regime, and their interaction all influenced overall carabid activity density. Weed management associated with corn variety influenced the activity density of a few carabid species and this was attributed to changes in vegetation. Some smaller bodied carabids such as Bembidion quadrimaculatum L. were less abundant in GMHT plots, probably because weed density was higher in midseason, but the opposite was observed for larger bodied carabids such as Pterostichus melanarius (Illiger). Overall, rotating corn with canola had a stronger effect on carabid community structure than did corn variety. We suggest that GMHT corn has little impact on the overall carabid fauna but may influence the activity of certain species through effects on the weed community.

scholarly journals Habitat and Landform Types Drive the Distribution of Carabid Beetles at High Altitudes

Diversity ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 142
Author(s):  
Mauro Gobbi ◽  
Marco Armanini ◽  
Teresa Boscolo ◽  
Roberta Chirichella ◽  
Valeria Lencioni ◽  
...  
Keyword(s):  
High Altitude ◽  
Ground Beetle ◽  
Habitat Type ◽  
Total Activity ◽  
Carabid Beetles ◽  
Taxonomic Distinctness ◽  
Habitat Types ◽  
Significant Difference ◽  
Activity Density ◽  
Sampling Points

The high altitude mountain slopes of the Dolomites (Italian Alps) are characterized by great habitat and landform heterogeneities. In this paper, we investigated the effect of a Nature 2000 habitat and landform types in driving the high altitude ground beetle (Carabidae) distribution in the Western Dolomites (Brenta group, Italy). We studied the carabid assemblages collected in 55 sampling points distributed in four Nature 2000 habitat types and four landform types located between 1860 and 2890 m above sea level (a.s.l.). Twenty-two species, half of them Alpine endemics, were sampled. Species richness and taxonomic distinctness did not show any significant difference among habitat types; conversely, these differences became significant when the landform type was considered. Total activity density and the frequency of brachypterous, endemic and predatory species showed significant differences between both habitat and landform types. An indicator species analysis identified twelve species linked to a specific habitat type and thirteen species linked to a specific landform type. A canonical correspondence analysis showed that altitude and vegetation cover drove the species distribution in each habitat and landform type while the aspect had a weak effect. Our results highlight the need for a geomorphological characterization of the sampling points when high altitude ground-dwelling arthropods are investigated.

scholarly journals Individual movement of large carabids as a link for activity density patterns in various forestry treatments

2021 ◽  
Vol 67 (1) ◽  
pp. 77-86
Author(s):  
Jana Růžičková ◽  
Sándor Bérces ◽  
Szlávko Ackov ◽  
Zoltán Elek
Keyword(s):  
Walking Speed ◽  
Radio Telemetry ◽  
Ground Beetle ◽  
Pitfall Trap ◽  
High Turnover ◽  
Individual Level ◽  
Activity Density ◽  
Good Proxy ◽  
The Individual ◽  
Trap Catches

Activity density is one of the most common measures for ground-dwelling arthropods including carabids. The term refers to the empirical fact that pitfall trap catches depend on the individuals’ activity; the higher activity of the individuals, the more catches in the traps. Although the movement at the individual level is widely studied, there is no available evidence whether the individual movement can be a good proxy for activity density. In our study, we aimed to explore this link in two ground beetle species, Carabus scheidleri and C. coriaceus, in oak-hornbeam forest in Hungary. We used pitfall traps for activity density and capture-mark-recapture and radio telemetry to record individual movement patterns in different forestry treatments, preparation cuttings and clear-cuttings, and their control plots. We identified an indirect link between activity density and movement of individuals via treatment types. Although activity density, mean walking speed, and the proportion of active time were significantly higher in both treatments than in control plots, individual movement reveals only temporal use of these habitats. Beetles left treatments within a few days. We concluded that the high turnover of individuals in treatments might indirectly suggest that these habitats likely act as temporary foraging sites for both species.

scholarly journals Carabid activity-density and community composition, and their impact on seed predation in pulse crops

2022 ◽  
Vol 326 ◽  
pp. 107807
Author(s):  
Stefanie E. De Heij ◽  
Dilshan Benaragama ◽  
Christian J. Willenborg
Keyword(s):  
Community Composition ◽  
Seed Predation ◽  
Pulse Crops ◽  
Activity Density
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