scholarly journals Landscape patterns of species-level association between ground-beetles and overstory trees in boreal forests of western Canada (Coleoptera, Carabidae)

ZooKeys ◽  
2011 ◽  
Vol 147 ◽  
pp. 577-600 ◽  
Author(s):  
Colin Bergeron ◽  
John Spence ◽  
Jan Volney

Spatial associations between species of trees and ground-beetles (Coleoptera: Carabidae) involve many indirect ecological processes, likely reflecting the function of numerous forest ecosystem components. Describing and quantifying these associations at the landscape scale is basic to the development of a surrogate-based framework for biodiversity monitoring and conservation. In this study, we used a systematic sampling grid covering 84 km2 of boreal mixedwood forest to characterize the ground-beetle assemblage associated with each tree species occurring on this landscape. Projecting the distribution of relative basal area of each tree species on the beetle ordination diagram suggests that the carabid community is structured by the same environmental factors that affects the distribution of trees, or perhaps even by trees per se. Interestingly beetle species are associated with tree species of the same rank order of abundance on this landscape, suggesting that conservation of less abundant trees will concomitantly foster conservation of less abundant beetle species. Landscape patterns of association described here are based on characteristics that can be directly linked to provincial forest inventories, providing a basis that is already available for use of tree species as biodiversity surrogates in boreal forest land management.

2013 ◽  
Vol 65 (2) ◽  
pp. 773-780
Author(s):  
S. Curcic ◽  
D. Antic ◽  
T. Radja ◽  
S. Makarov ◽  
B. Curcic ◽  
...  

A new endogean bembidiine ground beetle species, Winklerites serbicus sp. n., from a cave in the southeastern part of Serbia is both described and diagnosed. Male and female genital structures and other taxonomically important characters are illustrated. The new species is clearly distinct from its closest congeners. Fifteen species of the genus so far known are arranged in six groups. The new species is both endemic and relict, inhabiting southeastern Serbia only.


2016 ◽  
Vol 7 ◽  
pp. 573-579
Author(s):  
Srećko Ćurčić ◽  
Dragan Pavićević ◽  
Nikola Vesović ◽  
Matija Petković

A new trechine ground beetle species, Duvalius (Neoduvalius) bozidari sp. n. (from two underground objects in the surroundings of the city of Valjevo, western Serbia), is described and diagnosed in the current study. The male and female genitalia and other taxonomically important morphological structures are presented. The new species is clearly different from the closest relatives and is endemic to caves in a limited area in western Serbia.


2014 ◽  
Vol 66 (2) ◽  
pp. 889-900 ◽  
Author(s):  
S. Curcic ◽  
Maja Vrbica ◽  
D. Antic ◽  
B. Curcic ◽  
N. Vesovic

The following two new troglobitic trechine ground beetle species are described from two caves in eastern and southeastern Serbia: Duvalius (Paraduvalius) petrovici sp. n., from the Resavska Pecina Cave, village of Jelovac, near Despotovac, Kucajske Planine Mts., and D. (P.) sotirovi sp. n., from the Ogorelicka Pecina Cave, village of Sicevo, near Nis, Svrljiske Planine Mts. The new species considerably differ from the related taxa. All important morphological characteristics of the species, along with the diagnoses and images of the taxa are presented. These represent relicts and endemics of eastern and southeastern parts of Serbia and are of great age (probably Tertiary or even before).


2018 ◽  
Vol 41 ◽  
pp. 02022
Author(s):  
Sergey Luzyanin ◽  
Natalya Eremeeva

In this paper, the specific features of the species and ecological composition of ground beetles on the reclaimed dumps of the Kedrovsky coal open pit mine (Kemerovo Region, Russia) are considered. It is noted that 47 species of ground beetles were found on the dumps themselves, 44 in the control; in this case, the species and ecological structure of carabido complexes is changing considerably as long as the dumps are restoring. 39 species of ground beetles were recorded on the young dump, most of which belong to biotopical groups of open habitats (steppe, meadow-steppe), while their overall dynamic density is the lowest compared to other sites. The lowest number of ground beetle species is 33. The control plot is characterized by the domination of species of forest biotopical preferences both in species and abundance. It is shown, that during the succession the structure of the carabidofauna varies towards establishing the community that is characteristic for a specific type of zone vegetation.


2021 ◽  
Vol 30 (5) ◽  
pp. 1479-1499
Author(s):  
Peter Kriegel ◽  
Dragan Matevski ◽  
Andreas Schuldt

AbstractPlanting non-native tree species, like Douglas fir in temperate European forest systems, is encouraged to mitigate effects of climate change. However, Douglas fir monocultures often revealed negative effects on forest biota, while effects of mixtures with native tree species on forest ecosystems are less well understood. We investigated effects of three tree species (Douglas fir, Norway spruce, native European beech), on ground beetles in temperate forests of Germany. Beetles were sampled in monocultures of each tree species and broadleaf-conifer mixtures with pitfall traps, and environmental variables were assessed around each trap. We used linear mixed models in a two-step procedure to disentangle effects of environment and tree species identity on ground beetle abundance, species richness, functional diversity and species assemblage structure. Contradictory to our expectations, ground beetle abundance and functional diversity was highest in pure Douglas fir stands, while tree mixtures showed intermediate values between pure coniferous and pure beech stands. The main drivers of these patterns were only partially dependent on tree species identity, which highlights the importance of structural features in forest stands. However, our study revealed distinct shifts in assemblage structure between pure beech and pure Douglas fir stands, which were only partially eased through mixture planting. Our findings suggest that effects of planting non-native trees on associated biodiversity can be actively modified by promoting beneficial forest structures. Nevertheless, integrating non-native tree species, even in mixtures with native trees, will invariably alter assemblage structures of associated biota, which can compromise conservation efforts targeted at typical species composition.


2014 ◽  
Vol 66 (1) ◽  
pp. 415-427 ◽  
Author(s):  
S.B. Curcic ◽  
Maja Vrbica ◽  
D.Z. Antic ◽  
Dj. Markovic ◽  
M. Petkovic ◽  
...  

Three new troglobitic trechine ground beetle species are described from three caves in eastern and southeastern Serbia: Duvalius (Paraduvalius) bogovinae sp. n., from the Bogovinska Pecina Cave, village of Bogovina, Kucajske Planine Mts., near Boljevac, eastern Serbia; D. (P.) milutini sp. n., from the Samar cave system, village of Kopajkosara, Mt. Kalafat, near Svrljig, southeastern Serbia, and D. (P.) beljanicae sp. n., from the Velika Atula Cave, village of Strmosten, Mt. Beljanica, near Despotovac, eastern Serbia. The new species are easily distinguished from relatives. All important morphological features, along with the diagnoses and illustrations of the new taxa are presented. The new species are relicts and endemics of eastern and southeastern Serbia. They probably belong to old phyletic lineages of Tertiary or even pre-Tertiary origin.


1970 ◽  
Vol 11 ◽  
pp. 133-138
Author(s):  
Sudip Pandey ◽  
Siddhartha Bajra Bajracharya

The present study describes the structural and floral composition of the vegetation of Sikre Village Development Committee (VDC) at Shivapuri National Park. Systematic sampling technique was used to analyze the vegetation of the forest. A quadrat size of 10mx10m was plotted at respective point for tree study and within 5mx5m plots for shrubs and 1mx1m for herbs analysis. The study recorded a total of 18 tree species from 13 families in the forest area. Among the trees, Uttis (Alnus nepalensis D. Don) and Chilaune [Schima wallichii (DC.) Korth.] were the most dominant species. The major shrubs of the forest areas comprised of Yurilo (Hypericum uralum Buch.-Ham. ex D. Don), Chutro (Berberis aristata DC.) and Angeri (Melastoma melabathricum L.). Among the herbs Bhui Amala (Phyllanthus freternus Webster), Unyu [Dryopteris filix-mas (L.) Schott.] and Banmara (Eupatorium adenophorum Spreng.) were dominant ones in forest ground. The aboveground biomass of tree species was found to be 4021.41kg/ha in which Dhalne katus [Castanopsis indica (Roxb.) Miq.] constituted the large percent of biomass of the forest. The estimated resources demand and supply showed the annual deficit of 112.038t/yr and the carbon stock was calculated to be 2.01t/ha. The Shannon Index of diversity was highest for tree (2.33) followed by shrub (2.22) and herb (2.17) respectively. The density of cut stumps and the density of lopping were 184/ha and 216/ha respectively, which showed that the anthropogenic pressure on community forest was prominent. Key words: basal area; biomass; species diversity; systematic sampling DOI: 10.3126/njst.v11i0.4135Nepal Journal of Science and Technology 11 (2010) 133-138


1965 ◽  
Vol 43 (3) ◽  
pp. 465-473 ◽  
Author(s):  
I. Rivard

Marked adults and pitfall traps were used to study the dispersal on soil surface of four ground beetle species. Compared recaptures of Pterostichus melanarius Ill. and Harpalus erraticus Say released into two different plots indicated that carabids disperse more rapidly in cultivated than in cereal crops and that males of both species are usually more active than females. No difference, however, in the activity and dispersal rate could be established between sexes for H. compar Lec. and H. pennsylvanicus DeG. Each of the three following species tended to disperse in a different direction: P. melanarius toward the southwest, H. compar toward the northwest, and H. pennsylvanicus toward the northeast. The relatively high proportion of recoveries suggests also considerable wandering movements of the beetles inside the plots.


2000 ◽  
Vol 132 (5) ◽  
pp. 627-634 ◽  
Author(s):  
Kyle Apigian ◽  
Nathaniel T. Wheelwright

AbstractWe used pitfall trapping to measure the species richness and relative abundance of ground beetles (Coleoptera: Carabidae) in four forest habitats on Kent Island, a 80-ha island in the Bay of Fundy, New Brunswick, Canada. Sixteen species of ground beetles representing 11 genera were identified in the forested habitats on Kent Island; the relative paucity of ground beetle species may be a result of the island’s harsh climate, dense colonies of breeding seabirds, and isolation from the mainland. Estimates of ground beetle population densities on Kent Island ranged from 50 000 to 250 000/ha. Most ground beetle species were trapped in all habitats and appeared to be habitat generalists. In a series of experiments in which we removed all ground beetles trapped daily over a 3-week period in two experimental plots, ground beetle densities remained as high as in a control plot; other ground beetles quickly moved into the experimental plots to replace beetles that had been removed. The density of ground beetles was highest in intact forest and large forest patches; in contrast, the density of invertebrates other than ground beetles (i.e., possible prey or competitors of ground beetles) was highest in open habitats and isolated forest patches, where ground beetles were less common. Removing ground beetles from experimental plots did not result in an increase in the density of other invertebrates.


2020 ◽  
Vol 14 (1) ◽  
pp. 34
Author(s):  
Faezah Pardi

This study was conducted at Pulau Jerejak, Penang to determine the floristic variation of its tree communities. A 0.5-hectare study plot was established and divided into 11 subplots. A total of 587 trees with diameter at breast height (DBH) of 5 cm and above were measured, identified and recorded. The tree communities comprised of 84 species, 63 genera and 32 families. The Myrtaceae was the most speciose family with 10 recorded species while Syzgium glaucum (Myrtaceae) was the most frequent species. The Myrtaceae recorded the highest density of 306 individuals while Syzgium glaucum (Myrtaceae) had the highest species density of 182 individuals. Total tree basal area (BA) was 21.47 m2/ha and family with the highest BA was Myrtaceae with 5.81 m2/ha while at species level, Syzgium glaucum (Myrtaceae) was the species with the highest total BA in the plot with value of 4.95 m2/ha. The Shannon˗Weiner Diversity Index of tree communities showed a value of 3.60 (H'max = 4.43) and Evenness Index of 0.81 which indicates high uniformity of tree species. The Margalef Richness Index (R') revealed that the tree species richness was 13.02. Myrtaceae had the highest Importance Value of 20.4%. The Canonical Correspondence Analysis (CCA) showed that Diospyros buxifolia (Ebenaceae) and Pouteria malaccensis (Sapotaceae) were strongly correlated to low pH. Dysoxylum cauliflorum (Meliaceae) and Eriobotrya bengalensis (Rosaceae) were correlated to phosphorus (P) and calcium ion (Ca2+), respectively. Therefore, the trees species composition at Pulau Jerejak showed that the biodiversity is high and conservation action should be implemented to protect endangered tree species. Keywords: Floristic variation; Tree communities; Trees composition; Pulau Jerejak; Species diversity


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