A5028790394- Ruminant Nutrition and Digestive Physiology
- Rangeland Management and Livestock Ecology
- Animal Ecology and Behavior Studies
- Genetic and phenotypic traits in livestock
- Reproductive Physiology in Livestock
- Animal Nutrition and Physiology
- Effects of Environmental Stressors on Livestock
- Wildlife Ecology and Conservation
- Soil Carbon and Nitrogen Dynamics
- Ecology and Vegetation Dynamics Studies
- Animal Behavior and Reproduction
- Avian ecology and behavior
- Physiological and biochemical adaptations
- Insect and Pesticide Research
- Animal Diversity and Health Studies
- Bat Biology and Ecology Studies
- Yersinia bacterium, plague, ectoparasites research
- Vector-borne infectious diseases
- Rabbits: Nutrition, Reproduction, Health
- Plant and animal studies
- Animal Behavior and Welfare Studies
- Botany and Plant Ecology Studies
- Climate change and permafrost
- Fish Ecology and Management Studies
- Parasite Biology and Host Interactions
Ben-Gurion University of the Negev
2016-2025
Lappeenranta-Lahti University of Technology
2023
Dalhousie University
2023
New York University Press
2020-2022
Cambridge University Press
2020-2022
Institut für Medizinische Biometrie, Informatik und Epidemiologie
1998
Ministry of Agriculture and Rural Development
1994
Natural Environment Research Council
1994
The Technological College of Beer Sheva
1991
Agricultural Research Organization
1977
Dietary selection and intake affect the survival health of mammals under extreme environmental conditions. It has been suggested that dietary composition is a key driver gut microbiota variation; however, how respond to seasonal changes natural conditions remains poorly understood. Sequencing plant trnL (UAA) region 16S rRNA gene analysis were employed determine in freely grazing yaks on Tibetan plateau. was more diverse winter than summer, while Gramineae Rosaceae consumed frequently all...
Root exudates and rhizosphere microorganisms play key roles in the colonization of toxic plants under climate change land degradation. However, how root affect soil nutrients degraded grasslands remains unknown. We compared interaction microbial communities, exudates, carbon metabolism, environmental factors non-toxic plants. Deterministic processes had a greater effect on than plants, as affected directly. The 328 up-regulated compounds diversity microorganisms. Rhizosphere...
Livestock on the Qinghai-Tibetan Plateau is of great importance for livelihood local inhabitants and ecosystem plateau. The natural, harsh environment has shaped adaptations livestock while providing them with requisite eco-services. Over time, unique genes metabolic mechanisms (nitrogen energy) have evolved which enabled yaks to adapt morphologically physiologically Plateau. rumen microbiota also co-evolved host contributed host's adaptation environment. Understanding complex linkages...
1 We have assessed how different host parameters affect species richness of flea assemblages using the independent contrasts method. Three groups were examined. The first group included body (body size, basal and average daily metabolic rates), second geographical range size position this in relation to equator (latitude) third comprised related number sympatric closely species. 2 None correlated with assemblages. 3 Flea increased an increase latitude centre a as well composite variable that...
Abstract Soil nutrient contents and organic carbon (C) stability are key indicators for restoration of degraded grassland. However, the effects long‐term active extremely grassland on soil parameters have been equivocal. The aims this study were to evaluate impact alpine on: (a) matter (SOM) mineralization; (b) importance biotic factors temperature sensitivity ( Q 10 ) SOM mineralization. Soils sampled from intact, restored grasslands at altitudes ranging between 3,900 4,200 m Tibetan...
Abstract Long-term active restoration is often employed to restore degraded grasslands. The establishment of a viable soil seed bank the key successful restoration, as it enhances resilience vegetation. However, little known how affects vegetation following long-term We determined abundance and species composition properties intact, degraded, (>10 years) actively restored grasslands on Tibetan plateau (3900–4200 m a.s.l.). plant-soil-seed quality index structural equation modelling (SEM)...
Plants accomplish multiple functions by the interrelationships between functional traits. Clarifying complex relationships plant traits would enable us to better understand how plants employ different strategies adapt environment. Although increasing attention is being paid traits, few studies focused on adaptation aridity through relationship among We established trait networks (PTNs) explore interdependence of sixteen across drylands.Our results revealed significant differences in PTNs...
Ten growing heifers were either exposed to or protected from solar radiation, offered a diet of high (H) low (L) ME, and fed in the morning afternoon during hot summer. Heifers that consumed H had greater water intake, DMI, metabolizable energy expenditure, retained than L diet. Solar radiation did not have an effect on any these variables. Furthermore, dietary time measurement rectal temperature (Tr), respiration rate (RR), heart (HR), oxygen uptake (VO2); Tr RR but HR VO2; feeding only...
Abstract Metabolizable energy intake and changes in body mass was measured the desert gerbil Gerbillus dasyurus when parasitized by flea Xenopsylla ramesis . We hypothesized that requirements for maintenance, or average daily metabolic rate, of gerbils would be higher than those non‐parasitized gerbils. also efficiency utilization maintenance same gerbils, as this measurement is dependent mainly on dietary quality. Fifty fleas feeding a consumed 3.68±1.19 mg blood, total. This amounted to...
We studied immune responses of the jird Meriones crassus to different flea species belonging same family. used jirds maintained in an outdoor enclosure (enclosure; N=18) and parasitized by fleas Xenopsylla conformis mycerini ramesis, also born laboratory previously mothers (laboratory animals; N=23). asked (i) whether cross-immunity occurs, (ii) there is a sex difference parasitism (iii) severity depends on parasite load. In animals, response antigen from unfamiliar Synosternus cleopatrae...
Abstract The frequency and amount of precipitation exert profound impacts on plants the soil subsystem in dryland ecosystems. To quantitatively assess effect ecosystem carbon fluxes during growing season, a field experiment was carried out native desert‐grassland Inner Mongolia to determine dynamics along gradient (−60%, −40%, −20%, CK, +20%, +40%, +60%; CK is natural precipitation). net productivity (NEP) gross (GEP) exhibited single peak, whereas respiration (Reco) bimodal peak across all...
We investigated the associations between ecological (density, shelter structure), morphological (body mass, hair morphology) and physiological traits (basal metabolic rate) of small mammals (seasonality reproduction, microhabitat preferences, abundance, host specificity) (presence number combs) their flea parasites that shape selection processes by fleas. adapted extended version three‐table ordination linked species composition assemblages with phylogenies both hosts Fleas similar trait...
Abstract BACKGROUND Early weaning in yak calves is being attempted to improve reproduction rate. However, this has be done with caution because of the high mortality rate due lack nutrients and harsh environmental conditions. Twenty‐four weaned male were used a 60 day feeding trial which astragalus root extract (ARE) was supplemented. They assigned randomly one four dietary treatments ( n = six per treatment) that differed ARE level: 0 g kg −1 (control), ; 20 , 50 50; 80 dry matter intake...
Abstract Determining large‐scale patterns of plant elemental concentrations and stoichiometry along environmental gradients is critical for understanding adaptive strategies predicting ecosystem biogeochemistry processes. However, it remains unclear as to how carbon (C), nitrogen (N) phosphorus (P) their in different organs (leaves, stems roots) respond drylands. We determined C, N P ratios leaves, roots plants growing the dryland ecosystems China. Using threshold indicator taxa analyses, we...