نتایج جستجو برای: faunal study
تعداد نتایج: 3970241 فیلتر نتایج به سال:
خانواده پترومالیده (hymenoptera : chalcidoidea) یکی از بزرگ ترین خانواده های زنبورهای پارازیتویید در راسته بال غشاییان و بالا خانواده chalcidoidea است. اعضای این خانواده دشمن طبیعی بسیاری از حشرات مضر در راسته های سخت بال پوشان، دوبالان، بال غشاییان و جوربالان می باشند واز این نظر در کنترل بیولوژیک آفات مهم کشاورزی نقش مهمی به عهده دارند. در طی نمونه برداری در شش ماه اول سال های 1388 و 1389 نمو...
The effects of pollution (nutrient enrichment). and the presence of macrovegetation on the species diversity and density of large benthic fauna in the Manukau Harbour, Auckland, were studied by sampling eight soft shore, intertidal habitats. Pollution was found to reduce faunal density but to have only a slight effect on species diversity. The presence of dense meadows of the intertidal seaweed...
India's unique and highly diverse biota combined with its unique geodynamical history has generated significant interest in the patterns and processes that have shaped the current distribution of India's flora and fauna and their biogeographical relationships. Fifty four million year old Cambay amber from northwestern India provides the opportunity to address questions relating to endemism and ...
during a faunal survey on the family tachinidae in fars province, six tachinid parasitoids belonging to the subfamilies tachininae and phasiinae were collected and identified. they are reported for the first time from iran. the species are as follows: linnaemya neavei curran, microcerophina planifacies kugler, phasia mesnili (draber-monko), catharosia flavicornis (zetterstedt), leucostoma enged...
One of the most challenging fauna to study in situ is the obligate cave fauna because of the difficulty of sampling. Cave-limited species display patchy and restricted distributions, but it is often unclear whether the observed distribution is a sampling artifact or a true restriction in range. Further, the drivers of the distribution could be local environmental conditions, such as cave humidi...
Understanding factors related to the occurrence of species across multiple spatial and temporal scales is critical to the conservation and management of native fishes, especially for those species at the edge of their natural distribution. We used the concept of hierarchical faunal filters to provide a framework for investigating the influence of habitat characteristics and nonnative piscivores...
This study has investigated the taxon-specific responses of fauna to patch edges, and how these relate to patch attributes (patch size, seagrass biomass and water depth), and hydrodynamics in the seagrass habitat. Faunal abundances were sampled at the edge, 2 m in from the edge, and in the middle of 10 seagrass patches of variable size in Port Phillip Bay, Australia. Five of nine taxa showed ed...
We carried out a detailed taphonomic study of the faunal remains from Nahal Hadera V (NHV), a large Kebaran open-air site on the northern coastal plain, Israel. Faunal remains were previously identified to bone element and species (Saxon, Martin & Bar-Yosef, 1978). However, NISP and MNI values were calculated based on teeth and epiphyses only. In this study we identified the maximum number of s...
Evidence for human occupation of southern Africa’s high-altitude Maloti–Drakensberg Mountains is surprisingly common in the last glacial, yet the attraction of this relatively severe, cold region for hunter-foragers remains unclear. Sehonghong Rockshelter (1870m asl), in the eastern Lesotho Highlands, provides evidence for human occupation spanning Marine Isotope Stage 3 through the late Holoce...
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