Biodiversity and microclimatic divergence of chrysomelid beetles at ‘Evolution Canyon’, Lower Nahal Oren, Mt Carmel, Israel (original) (raw)
Related papers
Journal of Arid Environments, 1997
Spatial microscale adaptive divergence was demonstrated in darkling beetles (Tenebrionidae) between the south-facing slope (SFS) and north-facing slope (NFS) at Lower Nahal Oren, Mt. Carmel, Israel. Both slopes share the same geology and macroclimate, but dramatically differ in microclimate. We identified 42 species and 34 genera of darkling beetles from a microsite. Species, genera richness and abundance were significantly higher on the warmer, drier, climatically more fluctuating and biotically more heterogeneous SFS. The data indicate that the species on the more xeric SFS have on average a smaller range than those on the more temperate NFS, as predicted by Rapoport's rule.
Habitat heterogeneity, altitudinal gradients in relation to beetle diversity in South Sinai, Egypt
Proceedings of the …, 2001
Using pitfall traps, ground-dwelling beetles (Coleoptera) were sampled in a nested design from three different localities in the mountainous arid ecosystem of South Sinai at low, middle and high altitudes. Each locality was represented by three different 20x20-m sites, and each site had twenty individual traps distributed systematically. Habitat type and altitude were clearly different among the three localities and to a less extent within localities. Species diversity varied spatially and temporally among the different localities and sometimes within localities. Altitude was positively correlated with beetle species diversity, and habitat heterogeneity within a locality may also play a role in influencing species diversity. The different localities had distinct and characteristic groups of species responding to altitude and habitat characteristics.
Egyptian Journal of Biology, 2001
Using pitfall traps, ground-dwelling beetles (Coleoptera) were sampled in a nested design from three different localities in the mountainous arid ecosystem of South Sinai at low, middle and high altitudes. Each locality was represented by three different 20x20-m sites, and each site had twenty individual traps distributed systematically. Habitat type and altitude were clearly different among the three localities and to a less extent within localities. Species diversity varied spatially and temporally among the different localities and sometimes within localities. Altitude was positively correlated with beetle species diversity, and habitat heterogeneity within a locality may also play a role in influencing species diversity. The different localities had distinct and characteristic groups of species responding to altitude and habitat characteristics. KEY WORDS: Coleoptera, diversity, habitat heterogeneity, altitude, Sinai, Egypt. Egyptian Journal of Biology Vol.3(2) 2001: 137-146
New records of leaf beetles from Israel
Phytoparasitica, 1997
Four species of leaf beetles (Chrysomelidae) were recorded for the first time in Israel from 'Evolution Canyon', Lower Nahal Oren, Mt. Carmel: Cryptocephalus egerick~i Tapes, Cyrtonastes libanensis Berti & Daccordi, Pachybrachis jordanicus Lopatin, and Cassida pellergrini. Longitarsus parvulus was recorded for the second time in Israel.
ASSESSING THE POTENTIAL ROLE OF BEETLES AS BIOINDICATORS IN SOUTH SINAI, EGYPT
A study of ground beetle (Coleoptera) Communities was conducted in south Sinai Peninsula, Egypt. Using pitfall trap we collected a total of 4183 specimens from all sites, representing 73 genera and 98 species belonging to 19 coleopterous families. Various environmental factors influencing the distribution of beetles were measured. The most important were altitude and medium sand. Overall results suggest that abundance and species richness increased as the level of elevation decreased. To determine whether sites might sort into groups based in their beetles assemblage and environmental factors, sites were ordinated by canocal correspondence analysis (CCA), and classified by two-way indicator species analysis (TWINSPAN). Ordination suggested that the distribution of beetles was somewhat influenced by altitude and medium sand size. We used the cross-taxon analysis to assess the use of different beetle families as indicators of the health and functioning of the environment (ecological and environmental indicators) or as surrogate indicators of the overall diversity or assemblage composition of other groups within an area (biodiversity indicators). Cryptophagidae and Dermestidae were highly correlated with the environment and Tenebrionidae and Anthicidae were highly correlated with overall community.
Journal of Arid Environments, 1995
Darkling beetles (Tenebrionidae) were studied using pitfall traps in the Ramon erosion cirque in Israel for 2 years. The species showed similar phenologies in different habitats. Only one species (Erodius eabmitus) was a temporal specialist. Most species exhibited 7-l 0 month activity periods with one or two peaks of abundance. Diversity of the beetle communities was maximal in summer. The communities were most equitable in winter and summer and least equitable in spring and autumn. Multivariate analysis showed four temporal phases of community composition in the course of a year; (a) February-April, (b) May-July, (c) August-November and (d) December-January. The tenebrionid communities of these temporal phases differed more in species relative abundances than in species composition.
The effects of environmental factors and management of grasslands on the composition of beetle assemblages and species richness was studied in Antichasia Mountains (central Greece) using pitfall traps. We recorded (i) the seasonal species composition in terms of mean abundance per trap, species richness, Shannon - Weiner diversity index, Fisher’s a, Evenness index, and (ii) landscape variables (altitude, slope, soil depth, erosion) for both management systems (grazed vs. non-grazed). Species composition was analyzed using Canonical Correspondence Analysis (CCA). Throughout the experimental season, a total of 4,722 beetles were collected belonging to 25 species. Altitude, season and management were significant predictors of species composition. Ground beetle assemblages were correlated positively to the management of grasslands and altitude, while dung beetle species were represented by little dependence on variables. In order to conserve Scarabaeidae assemblages in such grasslands, grazing is suggested.
2017
Most of the research on leaf beetles more focusing on their roles as a pest or biological control. On the ecological part is much understudied. So the objective of this study is to determine the accumulation and diversity of leaf beetles at different altitude on Fraser’s Hill, Pahang. Sampling was done in Dec 2016 – Feb 2017 at lower ( 900 m a.s.l) altitudes by using sweep net from 10.00 a.m. to 2.00 p.m. A total of 296 individuals, 28 species and five subfamilies successfully collected. Galerucinae has the highest number of species and individuals with 14 and 154 respectively. Lower altitude has the highest individuals with 116 but has the lowest number of species with only 11. Meanwhile, sampling on Jan 2017 has the highest abundance of 108 individuals and 17 species. However, t-test indicates that there is no significant different between all Shannon index either by altitude-wise (H’ Higher = 1.80; Middle = 2.07; Lower = 1.95) or month-wise (H’ Dec ’16 = 2.36; Jan ’17 = 2.46;...