Volume 4 Issue 3
Aug.  2013
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Article Contents
Abstract
Introduction
Species status
Distribution and population
Habitat and home range
Breeding ecology
Threats and conservation
Acknowledgements
References
Related Articles
James HARRIS, Claire MIRANDE. 2013: A global overview of cranes: status, threats and conservation priorities. Avian Research, 4(3): 189-209. DOI: 10.5122/cbirds.2013.0025
Citation: James HARRIS, Claire MIRANDE. 2013: A global overview of cranes: status, threats and conservation priorities. Avian Research, 4(3): 189-209. DOI: 10.5122/cbirds.2013.0025
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A global overview of cranes: status, threats and conservation priorities

  • International Crane Foundation, Baraboo, WI 53913, USA

More Information
  • Corresponding author:

    James HARRIS, E-mail: harris@savingcranes.org

  • Received Date: 09 Apr 2013
  • Accepted Date: 29 Jul 2013
  • Available Online: 23 Apr 2023
    Graphical Abstract
    • Abstract

  • This paper reviews the population trends and threats for the 15 species of cranes, and comments on conservation priorities for the family as a whole. Cranes occur on five continents, with greatest diversity in East Asia (nine species) and Sub-Saharan Africa (six species). Eleven crane species are threatened with extinction according to the IUCN Red List, including one species Critically Endangered, three species Endangered, and seven species Vulnerable. Of the four species of Least Concern, population sizes for the Demoiselle (Anthropoides virgo) and Brolga (Grus rubicunda) are not well known but these species are declining in some areas. The Sandhill (G. canadensis) and Eurasian Cranes (G. grus) are the most abundant cranes and have rapidly increased in part due to their flexible selection of foraging habitats and use of agriculture lands and waste grain as a food source. Status for six species—Grey Crowned (Balearica regulorum), Blue (Anthropoides paradise), Black-necked (G. nigricollis), Red-crowned (G. japonensis), Sandhill, and Siberian (G. leucogeranus)—are summarized in more detail to illustrate the diversity of population shifts and threats within the crane family. A crane threat matrix lists the major threats, rates each threat for each species, and scores each threat for the crane family as a whole. Four of the five greatest threats are to the ecosystems that cranes depend upon, while only one of the top threats (human disturbance) relates to human action directly impacting on cranes. Four major threats are discussed: dams and water diversions, agriculture development, crane trade, and climate change. Conservation efforts should be strongly science-based, reduce direct threats to the birds, safeguard or restore habitat, and strengthen awareness among decision makers and local communities for how to safeguard cranes and wetlands. Especially for the most severely threatened species, significantly stronger efforts will be needed to incorporate our understanding of the needs of cranes and the ecosystems they inhabit into decisions about agriculture, water management, energy development and other human activities.

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  • Hainan Peacock Pheasant (Polyplectron katsumatae) is a rare tropical forest bird endemic to the island of Hainan, China (Cheng et al., 1978; Cheng, 1987; Zheng, 2005), and distributed only in the mountainous region of central and southwestern Hainan with evergreen broadleaf-dominated forests. Generally considered as a subspecies of the Grey Peacock Pheasant (P. bicalcaratum) which is distributed in a relatively larger range, the Hainan Peacock Pheasant has been recognized as non-threatened by the IUCN Red List for a long time (IUCN, 2006), and it has just been listed as "Endangered (EN)" species by the IUCN Red List since 2010 (IUCN, 2011). In China, it was listed as an endangered bird with Category I of nationally protected animals (Zheng and Wang, 1998).

    So far, little has been known about the natural history, ecology and spatial requirements of the Hainan Peacock Pheasant (Gao and Yu, 1990; Gao and Yang, 1991; Gao, 1998; Gao and Yu, 2000). The knowledge of the natural history and spatial requirements of threatened species is crucial for promising conservation strategies and the maintenance of viable populations (Crandall et al., 2000). In the light of this, here we provided updated information on the ecology and conservation status of the Hainan Peacock Pheasant, by integrating published data and our field surveys, including the radio-telemetry work in the Bawangling National Nature Reserve (18°57′–19°11′N, 109°3′–109°17′E) in 2000 and 2004 (Li, 2005).

    The peacock pheasants (Polyplectron spp.), comprising of six or seven species, is a group of small, relatively somber forest pheasants in tropical Asia (Madge et al., 2002). Only two taxa of peacock pheasants are distributed in China, the Grey Peacock Pheasant (P. bicalcaratum) in the west and southwest of Yunnan (Delacour, 1977; Cheng et al., 1978; Cheng, 1987; Johnsgard, 1999; Madge et al., 2002; Zheng, 2005) and the Hainan Peacock Pheasant (P. katsumatae) that is endemic to Hainan Island (Cheng, 1987; Zheng, 2005).

    The Hainan Peacock Pheasant was first described in 1906 and was treated as a full species, Polyplectron katsumatae Rothschild. Delacour (1977) lumped it with the Grey Peacock Pheasant and this taxonomic treatment became widely accepted (Johnsgard, 1986, 1999; Cheng, 1987, 1994; Gao and Yang, 1991; del Hoyo et al., 1994; Clements, 2000; Dickinson, 2003); however, some ornithologists still considered the Hainan Peacock Pheasant as a full species (Sibley and Monroe, 1990; Monroe and Sibley 1993; Mackinnon and Phillipps, 1999; Madge et al., 2002; Zheng, 2002, 2005), since taxonomy plays a key role in species conservation (Mace, 2004).

    More recently, molecular markers, including the complete mitochondrial cytochrome b gene and intron G of the nuclear ovomucoid gene, were used to re-evaluate the taxonomy of the Hainan Peacock Pheasant. The results showed phylogeographic monophyly and large genetic distance between the Hainan Peacock Pheasant and the Grey Peacock Pheasant, with sequence differences corroborating the species-level distinction between the two peacock pheasants, which were inferred to have diverged about 1.4 ± 0.3 million years ago, and thus suggested the Hainan Peacock Pheasant should be considered as a full species (Chang et al., 2008).

    The morphological data also indicate that the Hainan Peacock Pheasant (male: 511.7 ± 24.7 mm in body length, n = 5; female: 376.3 ± 45.2 mm in body length, n = 3) is distinct from the Grey Peacock Pheasant (male: 665.5 ± 3.5 mm in body length, n = 2; female: 515.7 ± 51.0 mm in body length, n = 3) (Delacour, 1977; Yang et al., 1995; Madge et al., 2002; see also Chang et al., 2008). In addition, the crest of the Hainan Peacock Pheasant is obviously shorter than that of the Grey Peacock Pheasant. Differences also exist in the color of ocelli, with those of the mantle and wings blue and green, and the tail ocelli have a complete grayish-buff border and a diameter of no more than 15 mm (Cheng, 2002) (Fig. 1, also see www.cnbird.org.cn with the Grey Peacock Pheasant for comparison).

    Figure  1.  The male Hainan Peacock Pheasant (photo by Qing CHENG)
    DownLoad: Full-Size Img PowerPoint

    The taxonomic uncertainty of the Hainan Peacock Pheasant is highly relevant to its conservation status. Among the taxa of Polyplectron spp., Hainan Peacock Pheasant is the smallest among allied species of somber forest peacock pheasants. Considering its limited distribution and small population size, as a full species, it has now been recognized as "Endangered" by the IUCN Red List (IUCN, 2011) to prevent loss of this island endemic.

    The Hainan Peacock Pheasant was once widely distributed in tropical rainforest over most of Hainan Island, especially the central and southwestern mountains (Guangdong Institute of Entomology et al., 1983; Gao, 1998). As a result of habitat loss (Lin and Zhang, 2001) and illegal hunting, both the range and population have decreased drastically since the 1950s (Zheng and Wang, 1998), and the extant population of the Hainan Peacock Pheasant has become fragmented into small, partially isolated populations (Table 1 and Fig. 2).

    Table  1.  Distribution sites of the Hainan Peacock Pheasant in Hainan Island, China
    Number in Fig. 2 Site Protected status a Reference b
    1 Jianfengling NNR 2, 3
    2 Houmiling PNR 1, 2, 3
    3 Jiaxi PNR 3
    4 Bawangling NNR 1, 2, 3
    5 Yinggeling PNR 3
    6 Limushan PNR 2, 3
    7 Panjia PNR 3
    8 Nanweiling 1, 2, 3
    9 Huishan PNR 3
    10 Baimaling 3
    11 Diaoluoshan NNR 1, 2, 3
    12 Wuzhishan NNR 2, 3
    13 Kafaling 3
    14 Maorui 3
    15 Baolong 3
    16 Ganshiling PNR 3
    17 Baomei PNR 3
    18 c Xinglong 1
    a NNR, national nature reserve; PNR, provincial nature reserve.
    b 1, Guangdong Institute of Entomology et al. (1983); 2, Gao (1998); 3, field surveys confirmed by the present study.
    c Historical distribution site recorded by Guangdong Institute of Entomology et al. (1983).
     | Show Table
    DownLoad: CSV
    Figure  2.  Locations of the Hainan Peacock Pheasant found in Hainan Island, China
    DownLoad: Full-Size Img PowerPoint

    The population density of the Hainan Peacock Pheasant in Bawangling National Nature Reserve (NNR) was provisionally estimated at 3.75 birds per km2 in 1992 and 3.74 birds per km2 in 1993 (Gao, 1998). Based on an estimated population of 2700 individuals in 1990s (Gao and Yu, 1990), and assuming the population has declined at 50–79% over the past 15 years (three generations), the population is best placed in the band 250–999 individuals (Chang et al. 2008). However, further surveys are urgently required to assess the population size throughout the entire island.

    The Hainan Peacock Pheasant inhabits only natural tropical forests, e.g. primary and secondary forests in the mountainous regions with 200–1300 m in elevation, and within its habitat, dominant trees include Homalium hainanense, Podocarpus imbricatus, Vatica mangachapoi, Dacry diumpier and Syzygium araiocladum. No peacock pheasants were found in plantations, including rubber tree (Hevea brasiliensis), eucalypt (Eucalyptus spp.) and areca (Areca catechu), though these plantations seemed to be in "good" condition with dense forest cover. In Bawangling NNR, habitat features, such as density and coverage of shrub, distance to water, grass abundance and human disturbance, were among main factors influencing habitat use of the Hainan Peacock Pheasant (Li, 2005).

    Radio-tracking data showed that the home range of the Hainan Peacock Pheasant was much small and relatively fixed (male: 2.95 ha, with a range of 2.32–8.59 ha, n = 3; female: 2.54 ha, with a range of 1.48–3.4 ha, n = 1). Several local hunters also reported that the Hainan Peacock Pheasant was much easy to capture within its fixed foraging sites, and it turned out to be the case further confirmed by us using walk-in traps.

    The Hainan Peacock Pheasant usually lives solitarily, or in pairs during the breeding season, rather than in groups (more than two birds), and monogamy is suggested as its mating system (Gao and Yang, 1991) but this needs further investigation. The breeding season is from February to June and lasts long enough up to five months, while males mark their territories by loudly crowing with "guo-guo-guo…", much different from its alarming call "ga-ga". All nests found were on the ground in the forest near the ridge, either at the base of trees, or under the rocks, with a small clutch size of only 1 egg or 2 eggs (n = 5) (Table 2). The egg size and mass, incubation periods and reproductive success remain unknown, but low fecundity together with high predation is suggested in this rare tropical pheasant.

    Table  2.  Nests of the Hainan Peacock Pheasant
    Nest No.
    1 2 3 4 5 6
    Date June 11, 1988 Feb 23, 2001 Feb 27, 2001 April 2003 April 26, 2000
    Location Xinglong Bawangling Bawangling Bawangling Bawangling Bawangling
    Nest site Forest, ground Forest, ground Forest, ground Forest, ground Forest, ground Forest, ground
    Elevation (m) 200 950 1025 1025 1030
    Nest material Dead leaves and grass Dead leaves Dead leaves Dead leaves Dead leaves Dead leaves
    Nest size (cm) 15 × 15 × 3 23 × 20 × 3 19 × 18 × 7
    Clutch size 1 2 2 1 2
    Egg color Pure white Pure white Pure white Pure white
    Nest fate Collected Collected 2 nestlings Predated 1 nestling
    Reference Guangdong Institute of Entomology et al. (1983) Gao and Yang (1991) This study This study This study This study
     | Show Table
    DownLoad: CSV

    Deforestation and replacement with exotic tree species such as Acacia mangium, and Eucalyptus spp. occurred in some forest areas (Fig. 3) and these are important threats to the Hainan Peacock Pheasant and other forest birds, e.g., Hainan Partridge (Arborophila ardens), even though few local people could benefit from these activities (Liang et al., 2005).

    Figure  3.  Replacement with exotic tree specie (Acacia mangium) in Yinggeling natural forest, Hainan Island, China (Photo by Canchao YANG)
    DownLoad: Full-Size Img PowerPoint

    Illegal hunting of birds is found in most surveyed areas, and is carried out mainly for sale in markets, rather than by local people for their own consumption (Liang et al., 2005). From December 1987 to August 1988, more than 30 hunted peacock pheasants were found in Bawangling, Nanweiling, Limushan and Diaoluoshan areas (Gao and Yang, 1991). Among 17 current distribution sites of the Hainan Peacock Pheasant (Table 1), and during a survey period of 2002–2006, at least one hunted peacock pheasant was found at 10 sites (58.8%), including three national nature reserves and five provincial nature reserves, suggesting that almost none of these reserves was secure from illegal hunting or trapping. However, illegal hunting was much more common in forest areas outside the nature reserves, e.g. Nanweiling (Liang, unpublished data) and Baimaling (Nanmao) (Gong et al., 2006; Liang, Cai and Yang, unpublished data), whilst egrets and swallows were well protected in most areas of Hainan (Liang et al., 2006; Zhang et al., 2010). This suggest that local traditional culture should play a key role in conservation (Liang et al., 2010), and should be taken into account for any promising conservation strategies for this threatened species.

    The findings that the Hainan Peacock Pheasant was not found in any of the forest plantations, let alone any other man-made habitat, and that hunting for this peacock pheasant was common, indicate indirectly that loss of habitat and hunting must have greatly reduced its numbers, and the population is likely to have declined rapidly. Apparently, conservation status of the Hainan Peacock Pheasant is not so satisfactory, and further surveys are urgently required to assess the population size and habitat requirements of this endangered and rare tropical pheasant throughout the entire island. Also, future investigation should focus on life history traits in relation to its vulnerability.

    This work was supported by the National Natural Science Foundation of China (Nos. 30860044, 30360015 and 39830030) and by Program for New Century Excellent Talents in University (NCET-10-0111). We thank the Forestry Department of Hainan Province for support and permission to carry out the study. Qing CHEN and Wenba SU provided the photo of the Hainan Peacock Pheasant. Jiankang SHI kindly helped with distribution figure. We also thank Jichao WANG, Jingrui LI, Canchao YANG, Yan CAI for their help in the field survey.

    • References (82)
  • Allan DG. 1993. Aspects of the biology and conservation status of the blue crane Anthropoides Paradiseus, and the Ludwig's Neotis Ludwigii and Stanley's N. Denhami Stanleyi bustards in Southern Africa. M.S. Thesis. University of Cape Town, Cape Town.
    An S, Li H, Guan B, Zhou C, Wang Z, Deng Z, Zhi Y, Lui Y, Xu C, Fang S, Jiang J, Li H. 2007. China's natural wetlands: past problems, current status, and future challenges. Ambio, 36: 335–342.
    Austin JE. 2012. Conflicts between Sandhill Cranes and farmers in the Western United States: evolving issues and solutions. In: Harris J (ed). Procs of the Cranes, Agriculture, and Climate Change Workshop at Muraviovka Park. Russia, 28 May–3 June 2010, pp 131–139.
    Austin JE. In preparation. Threats to cranes related to agriculture. In: Austin J, Morrison K, Mirande C (eds) Cranes and Agriculture — a Practical Guide to Conservationists and Land Managers. International Crane Foundation, Baraboo, Wisconsin.
    Beilfuss R, Bento C, Hancock P, Kamweneshe B, McCann K, Morrison K, Rodwell L. 2003. Water, wetlands, and wattled cranes: a regional monitoring and conservation program for Southern Africa. International Conference on Environmental Monitoring of Tropical and Subtropical Wetlands. Okavango Research Center, Maun, Botswana.
    Beilfuss R, Brown C. 2006. Assessing Environmental Flow Requirements for the Marromeu Complex of the Zambezi Delta: Application of the DRIFT Model (downstream response to imposed flow transformations). Museum of Natural HistoryUniversity of Eduardo Mondlane, Maputo, Mozambique.
    Beilfuss R, Dodman T, Urban E K. 2007. The status of cranes in Africa in 2005. Ostrich, 78: 175–184.
    Beilfuss R. 2009. Securing waters for cranes, ourselves, our world. ICF Bugle, 35: 1–2.
    Beilfuss R. 2010. Modeling trade-offs between hydropower generation and environmental flow scenarios: a case study of the Lower Zambezi River Basin, Mozambique. JRBM, 8: 331–347.
    Beilfuss R. 2012. A Risky Climate for Southern African Hydro: Addressing Hydrological Risks and Consequences for Zambezi River Basin Dams. International Rivers, Berkeley, California.
    Beilfuss R. 2013. Water for whoopers is water for all. ICF Bugle, 39: 1–2.
    Beilfuss RD, Brown C. 2010. Assessing environmental flow requirements and tradeoffs for the Lower Zambezi River and Delta, Mozambique. JRBM, 8: 127–138.
    Bento CM. 2002. The status and prospects of wattled cranes Grus carunculatus in the Marromeu Complex of the Zambezi Delta. M.S. Dissertation. University of Cape Town, South Africa.
    BirdLife International. 2013. IUCN Red List for birds. . Accessed 10 July 2013.
    Bishop MA, Tsamchu D, Li F. 2012. Number and distribution of black-necked cranes wintering in Zhigatse Prefecture, Tibet. Chinese Birds, 3: 191–198.
    Bishop MA, Tsamchu D. 2007. Tibet Autonomous Region. January 2007 survey for black-necked crane, common crane, and bar-headed goose. China Crane News, 11: 24–26.
    Borad CK, Mukherjee A, Patel SB, Parasharya BM. 2002. Breeding performance of Indian sarus crane Grus antigone antigone in the paddy crop agroecosystem. Biodiv Conserv, 11: 795–805.
    Brander L, Raymond M, Florax JGM, Vermaat JE. 2006. The empirics of wetland valuation: a comprehensive summary and a meta-analysis of the literature. Environ Resour Econ, 33: 223–250.
    Chavez-Ramirez F, Dumesnil M, and Smith E. 2013. A thousand whoopers. The Nature Conservancy. . Accessed 10 July 2013.
    Chavez-Ramirez F, Hunt HE, Slack RD, and Stehn TV. 1996. Ecological correlates of whooping crane use of fire-treated upland habitats. Conserv Biol, 10: 217–223.
    Chavez-Ramirez F, Wehtje W. 2012. Potential impact of climate change scenarios on whooping crane life history. Wetlands 32: 11–20.
    Constanza R, d'Arge R, de Groot R, Farber S, Grasso M, Hannon B, Limburg K, Naeem S, O'Neill RV, Paruelo J, Raskin R, Sutton P, van den Belt M. 1998. The value of ecosystem services: putting the issues in perspective. Ecol Econ, 25: 67–72.
    de Leeuw J, Shankman D, Wu G, de Boer WF, Burnham J, He Q, Yesou H, Xiao J. 2010. Strategic assessment of the magnitude and impacts of sand mining in Poyang Lake, China. Region Environ Change, 10: 95–102.
    Dugan P. 1993. Wetlands in Danger — A World Conservation Atlas. Oxford University Press, New York, USA.
    Finlayson CM, Spiers AG. 1996. Global review of wetland resources and priorities for wetland inventory. Supervising Scientist Report 144 / Wetlands International Publication 53, Supervising Scientist, Canberra, Australia.
    Fox AD, Cao L, Zhang Y, Barter M, Zhao MJ, Meng FJ, Wang SL. 2010. Declines in the tuber-feeding waterbird guild at Shengjin Lake National Nature Reserve, China — a barometer of submerged macrophyte collapse. Aquatic Conserv: Mar Freshw Ecosyst. doi: .
    Goroshko O, Tseveenmyadag N. 2002. Status and conservation of cranes in Daurian Steppes (Russia and Mongolia). China Crane News, 6: 5–7.
    Goroshko O. 2012. Global climate change and conservation of cranes in the Amur River Basin. In: Harris J (ed) Cranes, Agriculture, and Climate Change. Abstract in: Proceedings of a workshop organized by the International Crane Foundation and Muraviovka Park for Sustainable Land Use. International Crane Foundation, Baraboo, Wisconsin, p 143.
    Grice T, Nicholas M, Williams P, Collins E. 2010. Using fire to manage para grass in wetlands: a Queensland case study. In: Atkins S, Winderlich S (eds) Kakadu National Park Landscape Symposia Series 2007–2009. Symposium 3: Fire management, 23–24 April 2008, Aurora Kakadu (South Alligator), Kakadu National Park. Internal Report 566, February, Supervising Scientist, Darwin. . Accessed 10 July 2013.
    Guo H, Hu Q, Zhang Q, Feng S. 2012. Effects of the Three Gorges Dam on Yangtze River flow and river interaction with Poyang Lake, China: 2003–2008. J Hydrol, 416–417: 19–27.
    Harris J, Zhuang H. 2010. An ecosystem approach to resolving conflicts between ecological and economic priorities for Poyang Lake wetlands. Unpublished report. IUCN and International Crane Foundation, Baraboo, Wisconsin.
    Harris J. 1992. Managing nature reserves for cranes in China. Proc N Am Crane Workshop, 6: 1–11.
    Harris J. 2009. Safe flyways for the Siberian crane: a flyway approach conserves some of Asia's most beautiful wetlands and waterbirds. International Crane Foundation, Baraboo, Wisconsin.
    Harris J. 2012a. Cranes, Agriculture, and Climate Change. Proceedings of a workshop organized by the International Crane Foundation and Muraviovka Park for Sustainable Land Use. International Crane Foundation, Baraboo, Wisconsin. p 154.
    Harris J. 2012b. Introduction: cranes, agriculture, and climate change. In: Harris J (ed) Cranes, Agriculture, and Climate Change. Proceedings of a workshop organized by the International Crane Foundation and Muraviovka Park for Sustainable Land Use. International Crane Foundation, Baraboo, Wisconsin, pp 1–14.
    Hayes M, Barzen J. In preparation. Territory availability best explains fidelity in sandhill cranes.
    Hudson V. 2000. Captive cranes and trade — A South African perspective. In: Morrison KL (ed) Proceedings of the 12th South African Crane Working Group Workshop 22–23 November 2000. Endangered Wildlife Trust, South Africa.
    Hunt RA, Gluesing EA. 1976. The sandhill crane in Wisconsin. In: Lewis JC (ed) Proceedings of the International Crane Workshop. Oklahoma State University, Stillwater, pp 19–34.
    Johnson DN, Barnes PR. 1991. The breeding biology of the wattled crane in Natal. In: Harris JT (ed) Proceedings of 1987 International Crane Workshop; Qiqihar, 1–10 May 1987, Heilongjiang Province China. International Crane Foundation, Baraboo, Wisconsin, pp 377–386.
    Koga K. 2008. The status review of the Tancho in Hokkaido: current threats. In: Koga K, Hu D, Momose K (eds) The Current Status and Issues of the Red-crowned Crane. Proceedings of the Meeting "Establishment of a Feasible International Project for Protection of the Tancho Grus japonensis in 2007". Tancho Protection Group, Kushiro, Japan, pp 13–20.
    Kong B, Zhang SQ, Zhang B, Na XD, Li, XF, Lu XN. 2007. Analysis of burn severity of wetlands in Zhalong Nature Reserve and impact of fire on red crowned crane habitat. . Accessed 10 July 2013. (in Chinese)
    Korontzi S, McCarty J, Loboda T, Kumar S, Justice C. 2006. Global distribution of agricultural fires in croplands from 3 years of Moderate Resolution Imaging Spectroradiometer (MODIS) data. Glob Biogeochem Cycle, 20: GB2021.
    Krapu G. In preparation. Eurasian crane species assessment. In: Harris J, Mirande C (eds) WI/IUCN Crane Conservation Plan. International Crane Foundation, Baraboo, Wisconsin.
    Kruse KL, Dubovsky JA, Cooper TR. 2012. Status and harvests of sandhill cranes: mid-continent, Rocky Mountain, Lower Colorado River Valley and eastern populations. Administrative Report, U.S. Fish and Wildlife Service, Denver, Colorado. p 14.
    Lacy A, Cullen E, Barzen J, Schramm S. 2010. Protect your corn from cranes. UW Extension Bulletin A3897. University of Wisconsin-Madison.
    Lacy A. In preparation. Developing Anthraquinone (AQ) as a crane deterrent. In: Austin JE, Morrison K, Mirande C (eds) Cranes and Agriculture — A Practical Guide to Conservationists and Land Managers. International Crane Foundation, Baraboo, Wisconsin.
    Li F, Li P. 1991. The spring migration of Siberian cranes at Lindian County, Heilongjiang Province, China. In: Harris J (ed) Proceedings 1987 International Crane Workshop. International Crane Foundation, Baraboo, Wisconsin, pp 133–134.
    Li F, Wu J, Harris J, Burnham J. 2012. Number and distribution of cranes wintering at Poyang Lake, China during 2011–2012. Chinese Birds, 3: 180–190.
    Liu J, Zhang Q, Xu C, Zhang Z. 2009. Characteristics of runoff variation of Poyang Lake watershed in the past 50 years. Trop Geogr, 29: 213–218.
    Liu Q, Li F, Buzzard P, Qian F, Zhang F, Zhao J, Yang J, Yang X. 2012. Migration routes and new breeding areas of blacknecked cranes. Wilson J Ornithol, 124: 704–712.
    Luo J, Wang Y, Yang F, Liu Z. 2012. Effects of human disturbance on the hooded crane (Grus monacha) at stopover sites in northeastern China. Chinese Birds, 3: 206–216.
    McCann K, Theron LJ, Morrison K. 2007. Conservation priorities for the blue crane (Anthropoides paradiseus) in South Africa — the effects of habitat changes on distribution and numbers. Ostrich, 78: 205–211.
    McCann K, Wilkins H. 1995. A study of the annual biology and movement patterns of the three crane species in the KwaZulu-Natal Midlands — for the purpose of aiding the selection of the route for the Ariadne-Venus 400 kV transmission powerline. Unpublished report. Endangered Wildlife Trust, Johannesburg.
    McCann K. 2000. Blue crane. In: Barnes KN (ed) The ESKOM Red Data Book of Birds of South Africa, Lesotho and Swaziland. BirdLife South Africa, Johannesburg, p 92–94.
    McCann K. 2003. Population size and distribution of blue, grey crowned and wattled crane in KwaZulu-Natal, South Africa, determined by an aerial survey during July 2003. Indwa, 1: 18–26.
    Meine CM, Archibald GW. 1996. Status Survey and Conservation Action Plan: the cranes. IUCN, Gland, Switzerland.
    Mewes W. 2010. Population development, range of distribution and population density of Common Cranes Grus grus in Germany and its federal states. Vogelwelt, 131: 75–92.
    Mirande C, Lacy R, Seal U. 1992. Whooping crane (Grus americana) conservation viability assessment workshop report. Conservation Breeding Specialist Group, St. Paul, Minnesota.
    Morrison K, Beall F, Friedmann Y, Gichuki C, Gichuki N, Jordan M, Kaita M, Ndang'ang'a P, Muheebwa J. 2007. African Crane Trade Project: Trade Mitigation Planning Workshop. CBSG Southern Africa and International Crane Foundation/Endangered Wildlife Trust Partnership, Johannesburg.
    Morrison K, Botha B, Shaw K. 2012. Climate change threatens the agriculture landscape important for Blue Cranes in South Africa. In: Harris J (ed) Cranes, Agriculture, and Climate Change. Proceedings of a workshop organized by the International Crane Foundation and Muraviovka Park for Sustainable Land Use. International Crane Foundation, Baraboo, Wisconsin, USA, pp 105–108.
    Murphy L, Schad K. 2013. Population Analysis & Breeding and Transfer Plan for Grey-crowned Crane (Balearica regulorum) Yellow Species Survival Plan Program. AZA Population Management Center at Lincoln Park Zoo, Chicago, Illinois.
    Nesbitt SA, Tacha TC. 1997. Monogamy and productivity in sandhill cranes. Proc N Am Crane Workshop, 7: 10–17.
    Nowald G, Fanke J. In preparation a. Why cranes are found on agricultural lands. In: Austin J, Morrison K, Mirande C (eds) Cranes and Agriculture — A Practical Guide to Conservationists and Land Managers. International Crane Foundation, Baraboo, Wisconsin.
    Nowald G, Fanke J. In preparation b. Development of stop-over area for Eurasian cranes and the influence of agriculture in the Rügen-Bock region in northeast Germany. In: Austin J, Morrison K, Mirande C (eds) Cranes and Agriculture — A Practical Guide to Conservationists and Land Managers. International Crane Foundation, Baraboo, Wisconsin.
    Olupot W, Mugabe H, Plumptre AJ. 2010. Species conservation on human-dominated landscapes: the case of crowned crane breeding and distribution outside protected areas in Uganda. Africa J Ecol, 48: 119–125.
    Organisation for Economic Co-operation and Development (OECD). 1996. Guidelines for aid agencies for improved conservation and sustainable use of tropical and subtropical wetlands. Organisation for Economic Co-operation and Development, Paris, France.
    Pshennikov A. 2012. Dynamics of tundra landscapes in areas of Siberian crane reproduction. In: Harris J (ed) Cranes, Agriculture, and Climate Change. Proceedings of a workshop organized by the International Crane Foundation and Muraviovka Park for Sustainable Land Use. International Crane Foundation, Baraboo, Wisconsin, USA, pp 147–148.
    Reisse L, Marti K. 2011. Population Analysis & Breeding and Transfer Plan for Black Crowned Crane (Balearica pavonina) Yellow Species Survival Plan Program. AZA Population Management Center at Lincoln Park Zoo, Chicago, Illinois.
    Shaw JM, Jenkins AR, Smallie JJ, Ryan PG. 2010. Modeling power-line collision risk for blue cranes Anthropoides paradiseus in South Africa. Ibis, 152: 590–599.
    Smallie J. 2002. Cranes and power lines in the Eastern Cape. Crane Link, 12: 8.
    Su L, Harris J, Barzen J. 2004. Changes in population and distribution for greater sandhill cranes in Wisconsin. Passenger Pigeon, 66: 317–326.
    Su L, Zou H. 2012. Status, threats and conservation needs for the continental population of the Red-crowned Crane. Chinese Birds, 3: 147–164.
    Su L. 2003. Habitat selection by sandhill cranes, Grus canadensis tabida, at multiple geographic scales in Wisconsin. Ph. D. dissertation. University of Wisconsin-Madison.
    Su L. 2008. Challenges for red-crowned crane conservation in China. In: Koga K, Hu D, Momose K (eds) The Current Status and Issues of the Red-crowned Crane. Proceedings of the Meeting "Establishment of a Feasible International Project for Protection of the Tancho Grus japonensis in 2007". Tancho Protection Group, Kushiro, Japan, pp 63–73.
    Swengel S. 1996. Red-crowned crane (Grus japonensis). In: Meine CD, Archibald GW (eds). Status Survey and Conservation Action Plan: the Cranes. IUCN, Gland, Switzerland, pp 194–204.
    Teraoka H. 2008. Heavy-metal contamination status of the Tancho in Japan — extensive mercury pollution. In: Koga K, Hu D, Momose K (eds) The Current Status and Issues of the Redcrowned Crane. Proceedings of the Meeting "Establishment of a Feasible International Project for Protection of the Tancho Grus japonensis in 2007". Tancho Protection Group, Kushiro, Japan, pp 21–26.
    Walkinshaw LH. 1949. The Sandhill Cranes. Cranbrook Institute of Science, pp 1–202.
    Wang GX, Li YS, Wu QB, Wang YB. 2006. Impacts of permafrost changes on alpine ecosystem in Qinghai-Tibet Plateau. Science in China, Series D: Earth Sciences, 49: 1156–1169.
    Wetlands International. 2012. Waterfowl Population Estimates, Fifth Edition. Wetlands International, Wageningen, The Netherlands. .
    Wu Z, Han X, Wang L. 1991. Observations of migratory Siberian cranes at Momoge Nature Reserve. In: Harris J (ed) Proceedings 1987 International Crane Workshop. International Crane Foundation, Baraboo, Wisconsin, pp 135–137.
    Yang R, Wu HQ, Yang XJ, Jiang WG, Zuo L, Xiang ZR. 2005. A preliminary observation on breeding behavior of black-necked cranes at Ruoergai, Sichuan Province. In: Li FS, Yang XJ, Yang F (eds) Status and Conservation of Black-necked Cranes on the Yunnan and Guizhou Plateau, People's Republic of China. Yunnan Nationalities Publishing House, Kunming, pp 163– 169. (in Chinese)
    Yang XY, Dai B, Long TL, Zhang RL, Xiong QQ. 1996. Study of influences from land use on waterfowls in Ruoergai wetland. In: Wild Animal and Plant Conservation Department of Ministry of Forestry (ed) Wetland Conservation and Wise Utilization — Proceedings of China's Wetland Conservation Workshop. China Forestry Publishing House, Beijing, pp 266–271. (in Chinese)
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