Mohammad Farzam
A5060539333- Ecology and Vegetation Dynamics Studies
- Rangeland and Wildlife Management
- Plant Ecology and Taxonomy Studies
- Plant Parasitism and Resistance
- Rangeland Management and Livestock Ecology
- Plant and animal studies
- Heavy metals in environment
- Botany and Plant Ecology Studies
- Mycorrhizal Fungi and Plant Interactions
- Plant Ecology and Soil Science
- Fire effects on ecosystems
- Biocrusts and Microbial Ecology
- Botany, Ecology, and Taxonomy Studies
- Plant Stress Responses and Tolerance
- Tree Root and Stability Studies
- Agriculture, Soil, Plant Science
- Plant responses to elevated CO2
- Lichen and fungal ecology
- Nuts composition and effects
- Drug-Induced Hepatotoxicity and Protection
- Fungal Biology and Applications
- Aeolian processes and effects
- Clay minerals and soil interactions
- Agroforestry and silvopastoral systems
- Agricultural and Rural Development Research
Ferdowsi University of Mashhad
2016-2024
Curtin University
2023-2024
Watershed
2019-2021
Shiraz University
2014
Grazing represents the most extensive use of land worldwide. Yet its impacts on ecosystem services remain uncertain because pervasive interactions between grazing pressure, climate, soil properties, and biodiversity may occur but have never been addressed simultaneously. Using a standardized survey at 98 sites across six continents, we show that soil, are critical to explain delivery fundamental drylands Increasing pressure reduced service in warmer species-poor drylands, whereas positive...
Abstract Aims Understanding fine‐grain diversity patterns across large spatial extents is fundamental for macroecological research and biodiversity conservation. Using the GrassPlot database, we provide benchmarks of richness values Palaearctic open habitats vascular plants, bryophytes, lichens complete vegetation (i.e., sum former three groups). Location biogeographic realm. Methods We used 126,524 plots eight standard grain sizes from database: 0.0001, 0.001, 0.01, 0.1, 1, 10, 100 1,000 m...
Understanding the responses of vegetation characteristics and soil properties to grazing in different precipitation regimes is useful for management rangelands, especially arid regions. In northeastern Iran, we studied livestock three regions with climates: arid, semiarid, subhumid. each region, selected 6-7 pairwise sampling areas high versus low intensity six traits present species were recorded on 1 m2 plots-five grazed five ungrazed area. The overall fertility was compared using...
Abstract Aim Plant–plant interactions are an important factor in structuring plant biodiversity. However, most studies on the impacts of plant–plant biodiversity focus species richness and to a lesser extent other facets diversity. When considered, often include limited set environmental conditions. We aimed quantify nurse plants taxonomic, functional phylogenetic how these change across gradients. Location report data 28 alpine 50 dryland sites, established 11 countries. Time period...
Abstract Questions (a) Do patterns of species diversity and composition differ between plots exposed to high vs. low grazing intensity? (b) these differences vary among three regions with different climates, representing a gradient from arid sub‐humid conditions? Location Northeastern Iran. Methods We compared intensively grazed by sheep goat (HG) intensity (LG), across climatic regions: arid, semi‐arid sub‐humid. Species (expressed as Shannon H ) was using linear mixed‐effect models....
Restoration of degraded environments is essential to mitigate adverse impacts human activities on ecosystems. Plant-plant interactions may provide effective means for restoring arid lands, but little understood about these impacts. In this regard, we analyzed the effects two dominant nurse plants (i.e.,
Abstract Backgrounds Plant-plant interactions are among the most important factors affecting natural recovery of vegetation. While impacts nurse plants on species composition and biodiversity well documented, effects different nurse’s growth forms all components including taxonomic, functional, phylogenetic diversity have been less studied compared, especially for their times after fire disturbance. This research was focused comparing a perennial grass ( Elymus hispidens ), herb Phlomis...
Iran, situated in Southwest Asia, showcases a diverse landscape, including three phytogeographical regions and two global biodiversity hotspots. This diversity is attributed to its intricate geology, mountainous terrain, wide altitudinal range, heterogeneous climate, fostering rich flora characterized by significant proportion of endemism. We present an updated version the Vegetation Database Iran (IranVeg) (GIVD ID AS-IR-001), comprising 13,411 plots spanning six major habitat types. These...
AimsSpecies composition and diversity of the mountainous rangelands are results interactions between environmental severities, heterogeneous topography facilitative effects by nurse plants. This research was aimed to compare relative these three variables on natural vegetation a rangeland. For more detailed understanding, four different species were separately compared various plant growth forms two community responses (diversity abundance).
Fire is a key disturbance affecting plant biodiversity patterns and evolution. Although wide range of studies have shown important impacts fire on vegetation, most focused taxonomic diversity, with less emphasis other aspects biodiversity, such as functional phylogenetic diversity. Therefore, we assessed the recovery facets across different times since last in semiarid shrublands Northeast Iran. We quantified changes facets, including taxonomic, functional, diversity seven traits five...
Abstract Question Rocky outcrops generally restrict recruitment and survival of plant species due to their environmental conditions including low soil moisture, nutrient shortages microclimate harshness. Under such severe conditions, nurse plants may play critical roles in preserving biodiversity. Although the nurses' effects on biodiversity are fully understood different major biomes, relative abiotic factors as important have rarely been studied rocky outcrops, compared those surrounding...
Increases in the abundance of woody species have been reported to affect provisioning ecosystem services drylands worldwide. However, it is virtually unknown how multiple biotic and abiotic drivers, such as climate, grazing, fire, interact determine dominance across global drylands. We conducted a standardized field survey 304 plots 25 countries assess climatic features, soil properties, fire dryland rangelands. Precipitation, temperature, grazing were key determinants tree shrub dominance....
Abstract Climate and soil factors induce substantial controls over plant biodiversity in stressful ecosystems. Despite of some studies on extreme ecosystems including rocky outcrops, simultaneous effects climate have rarely been studied different facets taxonomic functional diversity these In addition, we know little about variations such compared to natural environments. It seems that environmental acting spatial scales specifically influence biodiversity. Therefore, changes along...
Livestock grazing is a major driver of ecosystem functions in drylands and would be expected to influence soil biota such as termites. We examined changes chemistry plant community composition on mounds constructed by the subterranean termite Anacanthotermes ahngerianus along gradient intensity an arid steppe north-eastern Iran. The was represented increasing distance from area used resting livestock, attributes measured within three adjacent microsites (termite mounds, non-mound controls,...
Abstract The interspecific plant interactions along grazing and aridity stress gradients represent a major research issue in ecology. However, the combined effects of these two factors on plant–plant have been poorly studied northeast Iran. To fill this knowledge gap, 144 plots were established 12 study sites with different intensities (high vs. low) climatic characteristics (arid semiarid) northeastern A dominant shrub, Artemisia kopetdaghensis , was selected as model species. Further, we...