Skip to main content

Novel Regional Classification of Natural and Socioeconomic Characteristics for the Persian Leopard Research and Conservation Programs

  • Chapter
  • First Online:
Research and Management Practices for Conservation of the Persian Leopard in Iran
  • 188 Accesses

Abstract

To study the Persian leopard potential habitats, to assess conservation needs and priorities, and also to conduct relative conservation and management programs, considering extensive variability of natural and socioeconomic characteristics across the leopard range in Iran is essential. Iran is a vast country with wide range of the Persian leopard across almost all provinces. Failing to closely concentrate on the notable variability of aforementioned characteristics in each part of the leopard range across the country may negatively affect the species distribution modelling practices as well as many other research, conservation, and management programs. Accordingly, this chapter is dedicated to a novel classification addressing the leopard putative range in Iran for further relative programs. Subsequently, a total of nine natural and human variables including climate, topography, dry condition, vegetation, and elevation, also protected areas, human population, land use, and human poverty index were used to classify the area into the groups with the most similarities. This is conducted by the means of extracting inherent clusters in the dataset of aforementioned variables in all provinces without prior tagging of the cases. Afterwards, topography and climatology in each region are briefly discussed. Conducting the large scale research, conservation, and management programs on a regional basis as introduced in this chapter is recommended not only for the leopard, but also for other wide ranging species in Iran when the program is affected by the variability of natural and socioeconomic characteristics.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  • Abai, M. R., Saghafipour, A., Ladonni, H., Jesri, N., Omidi, S., & Azari-Hamidian, S. (2016). Physicochemical characteristics of larval habitat waters of mosquitoes (Diptera: Culicidae) in Qom Province, Central Iran. Journal of Arthropod-Borne Diseases, 10(1), 65–77.

    PubMed  Google Scholar 

  • Akhani, H. (1998). Plant biodiversity of Golestan National Park, Iran. Stapfia, 54, 1–411.

    Google Scholar 

  • Akhani, H., Djamali, M., Ghorbanalizadeh, A., & Ramezani, E. (2010). Plant biodiversity of Hyrcanian relict forests, N Iran: An overview of the flora, vegetation, palaeoecology and conservation. Pakistan Journal of Botany, 42(Special Issue), 231–258.

    Google Scholar 

  • Amir-Ahmadian, B. (2002). Comprehensive geography of Caucasus (p. 538). Tehran, Iran: National Geographical Organization Publication.

    Google Scholar 

  • Asakereh, H., & Razmi, R. (2012). Climatology of precipitation in north west of Iran. Geography and Development, 9(25), 137–158.

    Google Scholar 

  • Asghari, M., & Vafaei, R. (2015). Comparative analysis of climate and morphology between traditional patterns and modern approaches: The case of Bushehr’s traditional context. Procedia Engineering, 118, 590–605.

    Article  Google Scholar 

  • Abtahi, S. M. & Safe, A. (2012). Rain and Temperature Trends in Namak Lake Basin (Iran) During the Last Half – Century. International Journal of Science and Nature, 3 (1): 137 – 146.

    Google Scholar 

  • Balme, G. A., Hunter, L., & Slotow, R. (2007). Feeding habitat selection by hunting leopards Panthera Pardus in a woodland savanna: Prey catchability versus abundance. Animal Behaviour, 74(3), 589–598.

    Article  Google Scholar 

  • Bannayan, M., Soler, C. T., Garcia, Y., Garcia, A., Guerra, L. C., & Hoogenboom, G. (2009). Interactive effects of elevated [CO2] and temperature on growth and development of a short-and long-season peanut cultivar. Climatic Change, 93(3–4), 389–406.

    Article  CAS  Google Scholar 

  • Bobek, H. (2005). The historical aspect of Iranian natural forests and woodlands (A. A. Pashaei, Trans., p. 145). Tehran, Iran: Geographical Organization of Iran.

    Google Scholar 

  • Comprehensive Study of Chahar Mahal and Bakhtiari Environment. (1993). General DoE office of Chahar Mahal and Bakhtiari. Yasuj, Iran.

    Google Scholar 

  • Comprehensive Study of Esfahan Environment. (1993). General Doe Office of Esfahan. Esfahan, Iran.

    Google Scholar 

  • Comprehensive Study of Hormozgan Environment. (1993). General Doe Office of Hormozga. Bandar Abbas, Iran.

    Google Scholar 

  • Comprehensive Study of Ilam Environment. (1993). General Doe Office of Khorasan. Mashhad, Iran.

    Google Scholar 

  • Comprehensive Study of Kohgiluyeh and Boyer Ahmad Environment. (1993). General Doe Office of Kohgiluyeh and Boyer Ahmad. Kohgiluyeh, Iran.

    Google Scholar 

  • Comprehensive Study of Semnan Environment. (1993). General Doe Office of Semnan. Semnan, Iran.

    Google Scholar 

  • Comprehensive Study of Sistan and Balouchestan Environment. (1993). General Doe Office of Sistan and Balouchestan. Zahedan, Iran.

    Google Scholar 

  • Department of Environment of Iran. (2012). Status of the areas under auspice of the Department of Environment. Tehran, Iran (Unpublished Document).

    Google Scholar 

  • Dinarvand, M., & Sharifi, M. (2009). An outlook on vegetation of habitats in south – west of Iran (Khuzestan Province). Pajouhesh Va Sazandegi, 81, 77–86.

    Google Scholar 

  • Dolatkhahi, M., Yousofi, M., Baghernejad, J., & Dolatkhahi, A. (2010). Introductory study of the medicinal plants species of Kazeroon in Fars Province. Journal of Herbal Drugs, 3, 47–56.

    Google Scholar 

  • Eskandari Dameneh, H., Borjib, M., Hhosravi, H., & Salajegheh, A. (2016). Desertification in forest, range and desert landuses of Tehran Province, under the impact of climate change. Solid Earth Discussions, 28, 1–12.

    Google Scholar 

  • Estelaji, A., & Shariat Panahi, M. V. (2013). Iran human geography (p. 200). Tehran, Iran: National Geographical Organization Publication.

    Google Scholar 

  • Esfahan Center for Research of Agricultural Science and Natural Resources (2012), Map of dry condition in Iran. Dry land agriculture management center, Esfahan, Iran.

    Google Scholar 

  • Fanni, Z., Hosayni, Z., Afsharmanesh, H., Nezammahalleh, M. A., & Rastegar, A. (2013). The effects of urban environment on climate changes, case study: Tehran, Iran. Journal of Tethys, 1(2), 138–147.

    Google Scholar 

  • Faraj Zadeh, M. (2005). Drought from concepts to solution (p. 128). Tehran, Iran: National Geographical Organization.

    Google Scholar 

  • Farajzadeh, H. (2003). Climatic classification northwest of Iran on the basis multivariate statistical analysis (Master’s thesis). Faculty of Geography, University of Tehran, Tehran, Iran.

    Google Scholar 

  • Farajzadeh, H., & Matzarakis, A. (2009). Quantification of climate for tourism in the northwest of Iran. Meteorological Applications, 16, 545–555.

    Article  Google Scholar 

  • Forrest, J. L., Wikramanayake, E., Shrestha, R., Areendran, G., Gyeltshen, K., Maheshwari, A., … Thapa, K. (2012). Conservation and climate change: Assessing the vulnerability of snow leopard habitat to treeline shift in the Himalaya. Biological Conservation, 150, 129–135.

    Google Scholar 

  • Gandomkar, A., & Azhdary Mamooreh, K. (2015). Detection of precipitation, temperature rather to mean, and its effect on ponds in Khuzestan Province. International Journal of Current Research and Academic Review, 3(1), 10–19.

    Google Scholar 

  • Gavashelishvili, A., & Lukarevskiy, V. (2008). Modelling the habitat requirements of leopard Panthera pardus in west and Central Asia. Journal of Applied Ecology, 45, 579–588.

    Article  Google Scholar 

  • Ghazanfari, H., Namiranian, M., Sobhani, H., & Mohajer, M. R. (2004). Traditional forest management and its application to encourage public participation for sustainable forest management in the northern Zagros Mountain of Kurdistan Province, Iran. Scandinavian Journal of Forest Research, 19(4), 65–71.

    Article  Google Scholar 

  • Gholizadeh, B. (2010, August). Assessment of the climate change in Mazandaran Province using geostatistical methods. Paper presented at 29th Conference on Agricultural and Forest Meteorology, Colorado, USA. Retrieved from http://www.ces.iisc.ernet.in/energy/lake2010/theme4/T4_Oral_05.pdf

  • Ghorbani, F., Mohammadi, Z., Darvish, J., Kami, H. G., & Siahsarvie, R. (2015). Morphological and morphometric characterization of the new records of the east European vole (Microtus Levis Miller, 1908) from Northeast Iran. Journal of Asia-Pacific Biodiversity, 8(3), 233–237.

    Article  Google Scholar 

  • Haidari, M., & Rezaei, D. (2013). Study of plant diversity in the northern Zagros forest (case study: Marivan region). International Journal of Advanced Biological and Biomedical Research, 1(1), 1–10.

    Google Scholar 

  • Hasanpori, R., Tavili, A., & Javadi, S. A. (2013). Topographic factors and plant dispersion in rangelands (case study: Lorestan, Iran). Journal of International Environmental Application and Science, 8(4), 520–523.

    Google Scholar 

  • Hayward, M. W., Henschel, P., O’Brien, J., Hofmeyr, M., Balme, G., & Kerley, G. I. H. (2006). Prey preferences of the leopard (Panthera pardus). Journal of Zoology, 270, 298–313.

    Article  Google Scholar 

  • Hyde, R. (2008). Bioclimatic housing: Innovation designs for warm climates. London, UK: Earthscan.

    Google Scholar 

  • Ingram, V. J. (2012). Forest to farm to market interfaces for non-timber forest products in Central Africa. Nature and Faune, 26(2), 43–48.

    Google Scholar 

  • Iran Land Cover Map. (2008). Geographical organization of Iran. Tehran, Iran (Unpublished Documents).

    Google Scholar 

  • Iran Land Use Map. (2008). National geographical organization of Iran. Tehran, Iran (Unpublished Documents).

    Google Scholar 

  • Iran Meteorological Organization. (2017). Climate data. Retrieved from http://www.irimo.ir/fa

  • Iran Topography Map. (2008). National geographical organization of Iran. Iran (Unpublished Documents).

    Google Scholar 

  • Jokar Arsanjani, J. (2011). Dynamic land use/cover change modelling: Geosimulation and multiagent-based modelling. Dordrecht, The Netherlands: Springer Science & Business Media. https://doi.org/10.1007/978-3-642-23705-8_2

    Book  Google Scholar 

  • Joslin, P. (1990). Leopards in Iran. In A. Shoemaker (Ed.), International leopard studbook (pp. 13–15). Columbia, SC: Riverbanks Zoological Park.

    Google Scholar 

  • Karam, A., Ranjbar, M., Eftekhari, M., & Yaghoob, N. A. N. (2014). Classification of morph climatic zones of Kermanshah Province using cluster analysis method. Geography, 39(11), 235–256.

    Google Scholar 

  • Karimi-Googhari, S. (2011). Analysis of precipitation climate and evapotranspiration in Kerman of Iran. International Journal of Agricultural Science, Research and Technology in Extension and Education Systems, 1(3), 105–108.

    Google Scholar 

  • Kasmaei, M. (1994). Climatic zoning of Iran for educational buildings. Tehran, Iran: Organization for Development, Renovation and Equipping Schools of Iran.

    Google Scholar 

  • Kazemi Rad, L. K., Mohammadi, H., & Teyfoori, V. (2015). Impacts of climate change on droughts in Gilan Province, Iran. Ecologia Balkanica, 7(1), 29–38.

    Google Scholar 

  • Khorozyan, I. G., & Abramov, A. V. (2007). The leopard, Panthera pardus (Carnivora, Felidae) and its resilience to human pressure in the Caucasus. Zoology in the Middle East, 41(1), 11–24.

    Article  Google Scholar 

  • Khosravi, S., Namiranian, M., Ghazanfari, H., & Shirvani, A. (2012). Crown biomass relationships of Lebanon oak in northern Zagros forests of Iran. Croatian Journal of Forest Engineering, 33(2), 239–247.

    Google Scholar 

  • Kiabi, B. H., Dareshouri, B. F., Ghaemi, R. A., & Jahanshahi, M. (2002). Population status of the Persian leopard (Panthera pardus saxicolor Pocock, 1927) in Iran. Zoology in the Middle East, 26(1), 41–47.

    Article  Google Scholar 

  • Mirmousavi, S. H., Gharoosi, H. A., & Khaefi, N. (2014). Study of climatic characteristics of Kermanshah and Kordestan based on factor and cluster analyses. Journal of Geography and Planning, 47, 235.

    Google Scholar 

  • Mirzaei, F., & Yazdani, M. M. (1992). Darreh Bagh protected area in Fars Province. Fars, Iran: Fars DoE Provincial Office.

    Google Scholar 

  • Mobargha, M. (2006). Habitat evaluation of Persian leopard (Panthera pardus saxicolor) in Turan National Park, Iran (Master’s thesis). Azad University, Tehran, Iran.

    Google Scholar 

  • Molavi-Arabshahi, M., Arpe, K., & Leroy, S. A. G. (2015). Precipitation and temperature of the Southwest Caspian Sea region during the last 55 years: Their trends and teleconnections with large-scale atmospheric phenomena. International Journal of Climatology, 36(5), 2156–2172.

    Article  Google Scholar 

  • Mooi, E., & Sarstedt, A. (2011). A concise guide to market research: The process, data, and methods using IBM SPSS statistics. New York, NY: Springer.

    Book  Google Scholar 

  • Mousaei Sanjerehei, M. (2014). Determination of the probability of the occurrence of Iran life zones (an integration of binary logistic regression and geostatistics). Journal of Biodiversity and Environmental Sciences, 4, 408–417.

    Google Scholar 

  • Naqinezhad, A., Hamzeh’ee, B., & Attar, F. (2008). Vegetation–environment relationships in the Alderwood communities of Caspian lowlands, N. Iran (toward an ecological classification). Flora-Morphology, Distribution, Functional Ecology of Plants, 203(7), 567–577.

    Article  Google Scholar 

  • Naseri, H. R. (2008). Investigation of soil and water effective parameters on playa marginal vegetation (Case study: Playa of Hoze- Soltan, Meyghan and Maranjab) (Doctoral dissertation). University of Tehran, Karaj, Iran.

    Google Scholar 

  • Nasri, M., & Modarres, R. (2009). Dry spell trend analysis of Isfahan Province, Iran. International Journal of Climatology, 29(10), 1430–1438.

    Article  Google Scholar 

  • National Competition Council. (2011). Human poverty index in the cities. Retrieved from https://www.nicc.gov.ir

  • National Geographical Organization of Iran. (2000). The gazetteer of townships in the I.R. of Iran, Orumieh Township. Tehran, Iran.

    Google Scholar 

  • National Geographical Organization of Iran. (2011). Guide atlas of Iranian Provinces (3rd ed., p. 67). Tehran, Iran.

    Google Scholar 

  • Omidi, M., Kaboli, M., Karami, M., Mahini, A. S., & Kiabi, B. H. (2010). Modeling of the Persian leopard (Panthera pardus saxicolor) habitat suitability in Kolah-Ghazi National Park using ENFA. Science and Environmental Technology, 12, 137–148.

    Google Scholar 

  • Operation Report of the Natural Environment Office of the Zahedan DoE. (2000). General DoE Office of Sistan and Baluchistan Province, Iran.

    Google Scholar 

  • Raziei, T., & Pereira, L. S. (2013). Spatial variability analysis of reference evapotranspiration in Iran utilizing fine resolution gridded datasets. Agricultural Water Management, 126, 104–118.

    Article  Google Scholar 

  • Salehvnd, I., Gandomkar, A., Fatahi, A., & Azizi, G. (2016). Returning annual periods of drought and wet in Lorestan Iran using Markov chain. Weather and Climate Extremes (withdrawn). https://doi.org/10.1016/j.wace.2016.05.002

  • Samadi, S., Ehteramian, K., & Sari Sarraf, B. (2011). SDSM ability in simulate predictors for climate detecting over Khorasan Province. Procedia Social and Behavioral Sciences, 19, 741–749.

    Article  Google Scholar 

  • Samin, N., & Kesdek, M. (2014). A faunistic study on the Carabidae (Coleoptera) from Golestan Province, northern Iran. Persian Gulf Crop Protection, 3(1), 41–45.

    Google Scholar 

  • Sanei, A. (2007). Assessment of leopard (Panthera pardus) status in Iran (Vol. 1, p. 298). Tehran, Iran: Sepehr Publication Center.

    Google Scholar 

  • Sanei, A., Gordmardi, E., Jafari, B., Absalan, H., & Zakaria, M. (2013). Persian leopard distribution in relation to human pressures and prey resources in north Khorasan Province, Iran. In Proceedings from International Forestry Graduate Students’ Conference (pp. 58–61). Selangor, Malaysia: Faculty of Forestry, Universiti Putra Malaysia.

    Google Scholar 

  • Sanei, A., Mousavi, M., Kiabi, B. H., Masoud, M. R., Gord Mardi, E., Mohamadi, H., … Raeesi, T. (2016). Status assessment of the Persian leopard in Iran. Cat News Special Issue, 10, 43–50.

    Google Scholar 

  • Sanei, A., & Zakaria, M. (2008). Distribution of Panthera pardus in Iran in relation to its habitat and climate type. In Proceedings from 3rd Regional Symposium on Environment and Natural Resources (p. 54). Selangor, Malaysia: Universiti Kebangsan Malaysia.

    Google Scholar 

  • Sanei, A., & Zakaria, M. (2011a). Impacts of human disturbances on the habitat use by the Malayan panther in a fragmented secondary forest, Malaysia. Asia Life Sciences, 7, 57–72.

    Google Scholar 

  • Sanei, A., & Zakaria, M. (2011b). Occupancy status of Malayan leopard prey species in a Fragmented Forest in Selangor, Malaysia. Asia Life Sciences Supplement, 7, 41–55.

    Google Scholar 

  • Sanei, A., & Zakaria, M. (2011c). Distribution pattern of the Persian leopard in Iran. Asia Life Sciences Supplement, 7, 7–18.

    Google Scholar 

  • Sanei, A., & Zakaria, M. (2011d). Survival of the Persian leopard (Panthera pardus saxicolor) in Iran: primary threats and human-leopard conflicts. Asia Life Sciences Supplement, 7, 31–39.

    Google Scholar 

  • Sanei, A., Zakaria, M., Yusof, E., & Roslan, M. (2011). Estimation of panther population size in a secondary forest within Malaysia’s capital agglomeration using unsupervised classification of pugmarks. Tropical Ecology, 52(2), 209–217.

    Google Scholar 

  • Scharnweber, T., Rietschel, M., & Manthey, M. (2007). Degradation stages of the Hyrcanian forests in southern Azerbaijan. Archiv für Naturschutz und Landschafts Forschung, 46, 133–156.

    Google Scholar 

  • Shabanian, N., Soheili, S., & Haidari, M. (2013). Tree spatial patterns in the Zagros forests (case study: Kurdistan forests; Western part of Iran). The European Journal of Experimental Biology, 3, 121–125.

    Google Scholar 

  • Shahriar, F., Montazeri, M., Momeni, M., & Freidooni, A. (2015). Regionalization of the climatic areas of Qazvin Province using multivariate statistical methods. Modern Applied Science, 9(2), 123.

    Article  Google Scholar 

  • Shirvani, A. (2017). Change in annual precipitation in the northwest of Iran. Meteorological Applications, 24(2), 211–218.

    Article  Google Scholar 

  • Silakhori, E., & Arami, S. A. (2014). Climate role in desertification of Khorasan provinces, Iran. International Journal of Agriculture and Crop Sciences, 7(6), 297–303.

    Google Scholar 

  • Soltani, M., Laux, P., Kunstmann, H., Stan, K., Sohrabi, M. M., Molanejad, M., … Zawar-Reza, P. (2016). Assessment of climate variations in temperature and precipitation extreme events over Iran. Theoretical and Applied Climatology, 126(3–4), 775–795.

    Google Scholar 

  • Soltanzadeh, Z., Saghaei, N., & Ostovan, H. (2015). A contribution to the fauna of fruit flies (Diptera, Tephritidae) in Fars Province, southern Iran. Linzer Biologische Beiträge, 47(1), 925–937.

    Google Scholar 

  • Soufi, M. (2004, July). Morpho-climatic classification of gullies in Fars Province, Southwest of IR Iran. In Paper presented at 13th International Soil Conservation Organisation Conference, July 2004, Brisbane, Australia.

    Google Scholar 

  • Statistical Centre of Iran. (2012). Iran statistical yearbook. Presidency of the I.R.I., vice presidency for strategic planning and supervision, Tehran, Iran.

    Google Scholar 

  • Stein, A. B., Athreya, V., Gerngross, P., Balme, G., Henschel, P., Karanth, U., … Ghoddousi, A. (2016). Panthera pardus, The IUCN Red List of Threatened Species2016:.e..T15954A50659089. Retrieved from https://doi.org/10.2305/IUCN.UK.2016-1.RLTS.T15954A50659089.en

  • Taghdisi, M., Mohammadi, A., Nourani, E., Shokri, S., Rezaei, A., & Kaboli, M. (2013). Diet and habitat use of the endangered Persian leopard (Panthera pardus saxicolor) in northeastern Iran. Turkish Journal of Zoology, 37, 554–561.

    Article  Google Scholar 

  • Taghizadeh-Mehjardi, R., Mahmoodi, S., & Heidari, A. (2009). Micromorphological evidences of climatic change in Yazd region, Iran. Journal of Mountain Science, 6(2), 162–172.

    Article  Google Scholar 

  • The Gazetteer of Mountains in the I. R. of Iran. (2006). National geographical organization of Iran. Tehran, Iran.

    Google Scholar 

  • Tilson, R., & Nyhus, P. (2010). Tigers of the world: The science, politics, and conservation of Panthera tigris (2nd ed.). London, UK: Elsevier.

    Google Scholar 

  • Torabi, S. M. M., & Halabian, A. H. (2015). Effects of changes in temperature and rainfall on potato cultivation in South Khorasan Province using the model LARS. Biological Forum – An International Journal, 7(1), 512–517.

    Google Scholar 

  • Vahdati, F. B., Mehrvarz, S. S., Naqinezhad, A. R., & Shavvon, R. S. (2014). Floristic characteristics of the Hyrcanian sub-mountain forests (case study: Ata-Kuh Forest). Caspian Journal of Environmental Sciences, 12(2), 169–183.

    Google Scholar 

  • Valipour, A., Namiraninan, M., Etemad, V., & Ghazanfari, H. (2009). Relationships between diameter, height and geographical aspects with bark thickness of Lebanon oak tree (Quercus libani Oliv.) in Armardeh, Baneh (northern Zagros of Iran). Research Journal of Forestry, 3(1), 1–7.

    Article  Google Scholar 

  • Verdade, L. M., Lyra-Jorge, M. C., & Piña, C. I. (Eds.). (2014). Applied ecology and human dimensions in biological conservation (pp. 3–17). Heidelberg, Germany: Springer.

    Book  Google Scholar 

  • Whittow, J. (1984). The penguin dictionary of physical geography (p. 352). London, UK: Penguin.

    Google Scholar 

Download references

Acknowledgments

I would like to acknowledge National Geographical Organization, Meteorological Organization, Statistical Center and Department of Environment of Iran for providing the necessary maps and information. Consultant and comments of Dr. Ali Seifzadeh and Dr. Mohamad Roslan Mohamad Kasim are highly appreciated.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Arezoo Sanei .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2020 Springer Nature Switzerland AG

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

Cite this chapter

Sanei, A. (2020). Novel Regional Classification of Natural and Socioeconomic Characteristics for the Persian Leopard Research and Conservation Programs. In: Sanei, A. (eds) Research and Management Practices for Conservation of the Persian Leopard in Iran. Springer, Cham. https://doi.org/10.1007/978-3-030-28003-1_3

Download citation

Publish with us

Policies and ethics