Breeding report of Greater Sand Plover Charadrius leschenaultii (Lesson, 1826) in Salhiyeh Lagoon (Karpozarbad) Nazarabad
Houman
Doroudi
Process Engineering Expert - Birdwatcher & Butterfly-watcher
author
text
article
2018
per
Greater sand plover is a small bird spread across the Caspian Sea, Central Asia, Africa, India, Armenia, New Zealand and Australia. This bird is breeding in parts of the Middle East such as Iran and Turkey. This species in Iran is native to the Caspian Sea coast and as a migratory bird in all wetlands of the country. The documentary of the breeding of this species previously included the observation of two adults and an immature adult in the city of Taibad in Khorasan Razavi province, as well as the observations of Mr. Yusuf Khani, Mr. Ali Khani and Mr. Yousefi, who had three nests in Shahrouz Sabzar province in June 2010 It has eggs and a nest with two chickens. There are also reports on its breeding in the Boushehr area, the Mianastshahr wildlife refuge in northern Khorasan province and around the city of Rashtkhar in Khorasan Razavi province. Recently, in May of this year, Mr. Ahmad Bahri also saw a chicken with parents in the More wetland in Qom Province. Therefore, this article attempts to study the other wetland recorded in this year's reproduction of this species.
Zist Sepehr Student Magazine
Environmental Student Scientific Association
۲۷۸۳-۳۸۹۵
13
v.
1
no.
2018
1
6
https://biosepehrsj.ut.ac.ir/article_66628_9081ef48abe5a011ca8a364562e345a4.pdf
Biomarkers of contamination and their role in animals
masoomeh
mahmoodi
department of environment, faculty of natrual resources, university of tehran, karaj, iran
author
text
article
2018
per
In recent years, the monitoring of aquatic ecosystems has resulted in quantitatively measuring the number of contaminants in water, sediment and fish tissues to qualitative measurements of the effects of pollutants on aquatic organisms, and assessing the health status of aquatic organisms and ultimately the health status of the ecosystem. Biomarkers or biological markers are genetic, biochemical, cellular, tissue, hematological, enzymatic and population indicators that track the secondary effects of pollutants on aquatic organisms and examine the aquatic physiological status for assessing aquatic health and eventually aquatic ecosystems. The advantages of biomarkers include on time detection of the effects of pollutants before ecological damage, ease of implementation, non-complexity of procedures, low cost and implementation in various laboratory and environmental conditions. Specific proteins used as markers include enzymes involved in detoxification and enzymes controlling the metabolism and excretion of foreign chemicals. These proteins include metallothioneins and cytochrome p450 enzymes, stress proteins. Another batch of proteins used as biomarkers are proteins involved in fish or early embryonic development. This category contains vitellogenin, egg proteins, and various cell receptors such as estrogen receptors. Contamination biomarkers in aquatic animals, depending on the type of contaminant, include protein induction, hormonal changes, sexual changes, etc., which are further detailed in terms of the type of contaminant and aquatic species.
Zist Sepehr Student Magazine
Environmental Student Scientific Association
۲۷۸۳-۳۸۹۵
13
v.
1
no.
2018
7
27
https://biosepehrsj.ut.ac.ir/article_66656_062435410b98922454237f78a33bf215.pdf
The effects of ecotourism on vulnerable species of wildlife
Sayyad
Sheykhi Ilanloo
Environment, nutural resurse faculty, university of Tehran
author
text
article
2018
per
In spite of the small impact of ecotourism on protected areas and wildlife species, if mismanaged, we will sometimes see the harmful effects of this type of industry on wildlife species. Nature-based tourism and ecotourism are very popular activities that generate annual earnings worth millions of dollars a year. Also, every year, the gross amount of ecotourism is increasing. However, interactions between wildlife and human beings often change animal behavior, even when animal welfare is considered. For example, feeding them may increase aggression among them, causing injuries and conflicts among their individuals. Manual feeding of the species, and in particular the prey species, causes behavioral changes and the habit of habit-making habitats of species to threaten the dangers that can threaten their survival. The financial dependence of the protected areas on the presence of tourists to visit the areas causes the vulnerability of the species to the species, especially endangered species. The risk of species loss will increase dramatically to create a recession in the tourism market. Therefore, a balanced and balanced management should be created between the dependence or non-acceptance of tourists in protected areas, in order to avoid possible damage to both behavioral spheres.
Zist Sepehr Student Magazine
Environmental Student Scientific Association
۲۷۸۳-۳۸۹۵
13
v.
1
no.
2018
28
37
https://biosepehrsj.ut.ac.ir/article_66657_9371fb75bd120fb1ffc43acdd6b9b48c.pdf
The effects of drought crisis on different sectors of agriculture, natural resources and environment (with emphasis on West Azarbaijan province)
Mosa
Shoja
Islamic Azad University, Science and Research Branch, Tehran
author
text
article
2018
per
Drought is one of the environmental phenomena and an inseparable part of climate change. Drought causing water shortages may occur anywhere, but features and effects, such as intensity, duration and magnitude of droughts are different from one place to another. Unlike floods, drought phenomenon that is slowly creeping takeover of an environment and becomes a natural disaster. Drought can be classified as climate drought or meteorological, hydrological, agricultural, and socio-economic. Meteorological drought is the most important type of drought and occurs when rainfall is less than a threshold in a given time period. Drought can have an impact on livestock, forests and pastures, population and the environment. Weight loss of livestock, livestock production cuts, reduced reproduction and livestock susceptible to diseases of the drought on livestock are the consequences. Drought, in addition to the impact on the survival and rehabilitation of grasslands and forests, can increase the likelihood of fires in these areas. Reducing rainfall and water resources will also have a negative impact on the supply of drinking water, but also on natural ecosystems that are dependent on water resources. Therefore, if there is a monitoring system and meteorological forecast, and with the development and support of updated technologies, it is possible to reduce the amount of damage in different parts by making the necessary preparations.
Zist Sepehr Student Magazine
Environmental Student Scientific Association
۲۷۸۳-۳۸۹۵
13
v.
1
no.
2018
38
50
https://biosepehrsj.ut.ac.ir/article_66658_6181e9c0c63174bab4e4735ba53bdd03.pdf
A review of population changes and land use in Iran in the last two centuries
Behroz
Bagheri
Expert of municipality of karaj
author
text
article
2018
per
Zist Sepehr Student Magazine
Environmental Student Scientific Association
۲۷۸۳-۳۸۹۵
13
v.
1
no.
2018
51
54
https://biosepehrsj.ut.ac.ir/article_69911_095ffd79f4ca68343d15664dc79fedfe.pdf
The roots of our environmental crisis
Hamidreza
Heydari
Department of Environment, Gorgan University of Agricultural Sciences and Natural Resources
author
text
article
2018
per
Zist Sepehr Student Magazine
Environmental Student Scientific Association
۲۷۸۳-۳۸۹۵
13
v.
1
no.
2018
55
57
https://biosepehrsj.ut.ac.ir/article_72204_5a815cf855d94e03ee2ec9830152b988.pdf