Similarities and differences of the spheroidal microstructure in Vertisols from Turkey and Israel     

S. Kapur  C. Karaman  E. Akca  M. Aydin  U. Dinc  E. A. FitzPatrick  M. Pagliai  D. Kalmar  A. R. Mermut 《CATENA》1997,28(3-4)

Vertisols formed on different parent materials from Turkey (Aslanpınarı and Begde soil series) and Israel (Akko soil series) were studied for their microstructure. The Aslanpınarı and Begde soils showed similar spheroidal microstructural development in the ABss horizons, whereas the spheres of Akko differed by being smaller and lacking granostriation. Micromorphometric analyses of the three soils revealed similar pore characteristics within and between the aggregates of the ABss horizons. Presence of the spheroidal microstructural units and increase of palygorskite and vermiculite in the ABss horizon of the Be de soil, which is in contrast with increasing smectite in the Aslanpınarı and Akko soils, links with an increase in the structural stability index and an increase in the hydraulic conductivity.  相似文献   

Saproxylic beetle assemblages in the Mediterranean region: Impact of forest management on richness and structure     

J. Buse  T. Levanony  A. Timm  T. Dayan  T. Assmann 《Forest Ecology and Management》2010

Forests cover almost 30% of the Mediterranean region today, yet forest management activities have influenced structure and composition of both natural and planted forests. To date no study has been conducted to evaluate the impact of forest management on saproxylic beetle assemblages, although it is known that the Mediterranean is a biodiversity hotspot with a long-lasting human pressure on natural habitats. We provide an overview of saproxylic beetle assemblages of three forest types (mature Pinus halepensis forests, mature Pinus brutia forests, young Quercus calliprinos forests) in the East Mediterranean region using a one-year sample from 12 forest plots located in the north of Israel.  相似文献   

以色列农业的现代化与河南农业发展的思考     

吴一平  张明进 《河南农业大学学报》1998,32(3):293-300

通过对以色列现代化农业发展的分析,研讨了各因子与农业产出的关系,并对自变量与因变量之间的相关性及相关主进行了测算,据此,提出了河南农业发展借鉴的经验。  相似文献   

An annotated list of cleridae and thanerocleridae (Coleoptera) of Israel     

R. Gerstmeier  J. Halperin  V. Chekatunov 《Phytoparasitica》1999,27(1):27-33

Thirty-five species of Cleridae and Thanerocleridae are recorded from Israel, 15 for the first time. General and local distribution, phenology, prey insect and their host plants are listed.  相似文献   

Retrospective identification as influenza virus of a hemagglutinating agent isolated from turkeys in Israel in 1973     

M Lipkind  K Hornstein  E Shihmanter  K Davidov  D Shoham 《Comparative immunology, microbiology and infectious diseases》1983,6(2):135-139

A hemagglutinating (HA) agent was isolated in Israel in 1973 from an outbreak of a respiratory disease on a turkey farm. The HA agent was preserved in a viable form until 1981 and was then identified retrospectively as influenza virus A/turkey/Ramon, Israel/73(H5N2). This finding helps to reconstruct the ecological picture of influenza virus strains circulated in avian reservoir in Israel during the last decade.  相似文献   

Status of pesticide resistance in arthropod pests in Israel     

A. R. Horowitz  Phyllis G. Weintraub  I. Ishaaya 《Phytoparasitica》1998,26(3):231-240

A complex of events and factors, pertinent to a specific insect and insecticide, governs the development of resistance to insecticides. In Israel, resistance to conventional and novel insecticides occurred in insect pests such asBemisia tabaci andSpodoptera littoralis (that damage agricultural crops),Tribolium castaneum and other flour beetles (that contaminate stored products), andPediculus humanus spp., house flies and mosquitoes (that threaten public health). In the mid-1980s an insecticide resistance management (IRM) strategy was established for all cotton grown in Israel and is being adjusted on a yearly basis as needed. At present, insect pest management and IRM strategies are being developed and implemented area-wide for three regions in Israel: Bet She’an Valley, western Galilee, and western Negev. There are several research groups now working in Israel on various aspects of resistance including occurrence, mechanisms, and management practices. This paper offers a tentative review of the status of insecticide and acaricide resistance in pests in Israel.  相似文献   

Seasonal allergic dermatitis in sheep associated with Ctenocephalides and Culicoides bites     

Yeruham I  Perl S  Braverman Y 《Veterinary dermatology》2004,15(6):377-380

The clinical, epidemiological and histopathological findings of two pruritic dermatites in sheep in Israel are described. The first type of dermatitis affected mainly young animals with lesions predominantly on the legs. It occurred from March to November, with a peak in June. The second type affected animals of all ages and was mainly on the ventrum. It was sporadic but occurred throughout the year with a peak in October. The morbidity rate of this syndrome reached 4.3% in one flock. The histopathology of both conditions was consistent with an allergic dermatitis. Fleas and midges were collected and identified as Ctenocephalides felis felis and various species of Culicoides. The population density, seasonal activity, geographical distribution and feeding behaviour preferences of the insects and the incidence of the two types of dermatitis suggest that fleas and midges were the causal agents. Flea and midge bite pruritic dermatoses should be considered in the differential diagnosis of sarcoptic and psoroptic mange.  相似文献   

Resistance of Triticum dicoccoides to infection with Erysiphe graminis tritici     

J. G. Moseman  E. Nevo  M. A. EL Morshidy  D. Zohary 《Euphytica》1984,33(1):41-47

Summary The reactions of 233 Triticum dicoccoides acessions, collected at 10 sites in Israel and elsewhere, to infection with cultures of Erysiphe graminis tritici, were determined. The reactions indicated that the number of sources of resistance to E. graminis tritici which can be obtained from T. dicoccoides plants growing wild in Israel and elsewhere is almost unlimited. One hundred and fourteen or 49% of the accessions were resistant, and 137 or 59% of the accessions were resistant or moderately resistant to infection with four cultures of E. graminis tritici which possess the virulence genes corresponding to most of the identified resistance genes in wheat. Accessions collected at sites with marginal habitats where T. dicoccoides grows poorly and has lower grain weight, were more susceptible than were accessions collected at sites with an optimal habitat for growth of T. dicoccoides. The results agreed with those in a previous study with Hordeum spontaneum, and indicate that to obtain H. spontaneum or T. dicoccoides accessions with the highest level of resistance to the powdery mildew pathogens, plants should be collected at sites in ecological and geographic regions where those two species occupy optimum habitats and are exposed to the powdery mildew pathogens.  相似文献   

Preharvest kernel invasion in groundnut genotypes by Aspergillus flavus and its relation to the pod surface area   总被引：3，自引：0，他引：3  

Z. R. Frank  Y. Smulevitch  N. Lisker 《Euphytica》1994,75(3):207-213

Summary Field and microplot trials were conducted. In microplot experiments the soil was artificially infested by Aspergillus flavus Link ex Fries. In field tests the percentage of A. flavus-affected kernels and in microplot experiments the number of A. flavus colonies emerging from 100 seeds was determined. As the geocarpoplane is the main frontier of pod invasion, pod surfaces were measured and the number of seedborne colonies per 100 cm² of pod surface were calculated for each groundnut genotype. Some genotypes, which were similar in colony incidence (counts per 100 seeds), differed markedly from each other in colonization density (number of seedborne colonies as calculated per unit area of pod surface). Cultivar EC-21115 had a low incidence of seed borne colonies of A. flavus; however, the number of colonies per 100 cm² of pod surface was high. Cv. Lavkan was low, both, in colony incidence and colonization density. Genotypes low in both these parameters should be tested as potential sources of resistance.Contribution from the Agricultural Research Organization, The Voleani Center, Bet Dagan 50250, Israel. No. 1149-E, 1993 series.  相似文献   

Poaching of Israeli wildlife by guest workers     

Yoram Yom-Tov 《Biological conservation》2003,110(1):11-20

Movement of people from third- to first-world countries frequently brings with it different, and often opposing, approaches to wildlife. About 22,000 Thai workers are currently employed in Israel, mostly in agriculture. Most of these workers originate from the poor Isaan region in northeast Thailand, where the major source of income is from agriculture, supplemented by gathering and hunting of animals. In Israel, many of them engage in illegal hunting and gathering of wildlife. At least 28 species of mammals (including six domestic ones), 25 species of birds, seven species of reptiles, three species of amphibians and various species of fish, molluscs and other invertebrates have been found mainly in traps (chiefly noose traps) laid by Thai workers. Other methods of capture used by the workers include the use of hand-held catapults, netting, the collection of bird eggs, and the gathering of slow-moving vertebrates and invertebrates. These activities have a serious deleterious effect on the wildlife in Israel.  相似文献