Guam Rail Rallus owstoni Species Survival Plan

Executive Summary and Summary Recommendations Guam Rail Rallus owstoni Species Survival Plan SSP Coordinator Megan Reinertsen Ross, Lincoln Park Zoo mross@lpzoo.org Guam DAWR Liaison Suzanne Medina SPMAG ADVISOR Colleen Lynch, AZA Population Management Center 30 March 2006 This report was prepared with assistance from the

Executive Summary Guam Rail (Rallus owstoni) Species Survival Plan The Gruiformes TAG Regional Collection Plan, currently in the draft stage, has recommended Guam rails be managed as a SSP. AZA institutions hold 51 individuals at this time in 16 institutions. When gene diversity falls below 90% of that in the founding population, it is expected that reproduction will be increasingly compromised by, among other factors, lower hatch weights, smaller clutch sizes, and greater neonatal mortality. The current gene diversity is 86%, however the potential gene diversity is high (92%). Careful breeding practices are important to maintain the genetic variation within the population. The North American population serves as a support population for the Guam population providing a genetic reservoir as well as a source of individuals for release. Therefore, these breeding recommendations are meant to balance the genetic representation between the mainland and Guam populations, as well as to breed individuals for release to be sent back to Guam. These statistics represent the North American population excluding all birds currently housed on Guam. DEMOGRAPHY Current Population Size 51 Target Population Size RCP incomplete Mean Generation Time (years) 2.82 Projected Population Growth Rate (λ) 1.25 GENETICS Current Potential Current Gene Diversity (% of Wild) 85.78 92.22 Founder Genome Equivalents 6.43 Number of Founders 10 0 Years To 90% Gene Diversity 0 Gene Diversity at 100 Years From Present (%) 26 * RCP in Draft stage Due to lower than expected productivity in pairs recommended to breed for North America (versus for export) in 2005 some chicks produced for export and others designated for export in 2005 will be retained in the North American population in 2006. Low production was, in part, due to the failure of recommended transfers to occur reducing the number of pairs below the expected number. If difficulty in enacting recommendations occurs in 2006 please inform the Species Coordinator so that alternate arrangements can be made and production goals can be met. At this time, the population should be maintained to grow at a rate that does not exceed the limits of the release program or the ability of designated quarantine facilities to export birds. In most SSPs, pairings recommended for populations are prioritized to maintain or increase gene diversity through considerations of mean kinship, avoidance of inbreeding, differences in sire and dam mean kinships, and the degree of uncertainty within a pedigree. However, for this population genetic considerations for pairs have been relaxed to meet demographic goals of the release program. The number of pairings recommended is intended to grow the population in order to supplement the reintroduction population. 6.43 Summary Actions: The SSP will have 12 exportations to the Guam population, 0 importations from the Guam population, 10 North American transfers, and 16 breeding pairs for 2005.

Summary of Breeding and Transfer Recommendations ID Location Sex Disposition Location Breeding With Notes 871 CHICAGOLP F SEND TO CINCINNAT 393 CINCINNAT M HOLD CINCINNAT DO NOT 414 CINCINNAT F HOLD CINCINNAT DO NOT 853 CINCINNAT F SEND TO SD-WAP 1321 CINCINNAT M HOLD CINCINNAT 1410 CINCINNAT F HOLD CINCINNAT 1565 CINCINNAT U SEND TO GUAM DO NOT 1566 CINCINNAT U SEND TO GUAM DO NOT 1560 DISNEY AK F SEND TO GUAM DO NOT 1561 DISNEY AK M SEND TO GUAM DO NOT 1562 DISNEY AK M SEND TO GUAM DO NOT 1459 GAINSVLL F HOLD GAINSVLL 994 LOUISVILL M HOLD LOUISVILL 1460 LOUISVILL F HOLD LOUISVILL 1293 MILWAUKEE M HOLD MILWAUKEE 1320 MILWAUKEE F HOLD MILWAUKEE 266 NZP-CRC M HOLD NZP-CRC DO NOT 372 NZP-CRC M HOLD NZP-CRC DO NOT 727 NZP-CRC F SEND TO SANDIEGOZ 1292 NZP-CRC M HOLD NZP-CRC 1556 NZP-CRC F SEND TO GUAM DO NOT 1557 NZP-CRC F SEND TO GUAM DO NOT 1558 NZP-CRC M SEND TO GUAM DO NOT 1559 NZP-CRC F SEND TO GUAM DO NOT 1318 NZP-WASH M HOLD NZP-WASH 1412 NZP-WASH F HOLD NZP-WASH 1569, 1570, OR 1571, 1571 TO BE PAIRED ANY OF THE THREE DETERMINED TO BE A MALE, breed for export via DAK 872 breed for North America 1410 breed for export via CRC 1321 breed for export via CRC 1322 breed for export via DAK 1460 breed for export via SDZ 994 breed for export via SDZ 1320 breed for North America 1293 breed for North America 988 breed for North America 508 breed for North America 1412 breed for export via CRC 1318 breed for export via CRC

ID Location Sex Disposition Location Breeding With Notes 1563 NZP-WASH U SEND TO GUAM DO NOT 747 PHILADELP F HOLD PHILADELP 985 breed for North America 985 PHILADELP M HOLD PHILADELP 747 breed for North America 981 PITTS CA M HOLD PITTS CA 993 breed for export via CRC 993 PITTS CA F HOLD PITTS CA 981 breed for export via CRC 1569 PITTS CA U SEND TO TBD 871 do not export -retain for N.A. - determine and report sex to 1570 PITTS CA U SEND TO TBD 1571 PITTS CA U SEND TO TBD 1319 RACINE F HOLD RACINE 995 SAN ANTON F HOLD SAN ANTON 1313 SAN ANTON M HOLD SAN ANTON 1314 SAN ANTON M SEND TO RACINE 1564 SAN ANTON F HOLD SAN ANTON DO NOT 508 SANDIEGOZ F SEND TO NZP-CRC 872 SANDIEGOZ M SEND TO SD-WAP 988 SANDIEGOZ M HOLD SANDIEGOZ 655 SD-WAP F HOLD SD-WAP 986 SD-WAP M HOLD SD-WAP 1322 SD-WAP M SEND TO GAINSVLL 586 SEDGWICK M SEND TO CHICAGOLP 635 SEDGWICK F HOLD SEDGWICK 841 SEDGWICK M HOLD SEDGWICK 543 TRACY AV F HOLD TRACY AV 636 TRACY AV M HOLD TRACY AV 1315 TRACY AV F SEND TO CHICAGOLP facilitate placement 871 do not export -retain for N.A. - determine and report sex to facilitate placement 871 do not export -retain for N.A. - determine and report sex to facilitate placement 1314 breed for North America 1313 breed for North America 995 breed for North America 1319 breed for North America 1292 breed for North America 853 breed for North America 727 breed for North America 986 breed for North America 655 breed for North America 1459 breed for export via DAK 1315 breed for export via SDZ 841 breed for North America 635 breed for North America 636 breed for North America 543 breed for North America 586 breed for export via SDZ

CHICAGOLP Lincoln Park Zoo Chicago, IL 871 F SEND TO CINCINNAT 586 M RECEIVE FROM 1315 F RECEIVE FROM SEDGWICK TRACY AV 1569, 1570, OR 1571, 1571 to be paired with any of the three determined to be a male, breed for export via DAK 1315 breed for export via SDZ 586 breed for export via SDZ CINCINNAT Cincinnati Zoo & Botanical Garden Cincinnati, OH 871 F RECEIVE FROM CHICAGOLP 393 M HOLD CINCINNAT DO NOT 414 F HOLD CINCINNAT DO NOT 853 F SEND TO SD-WAP 1321 M HOLD CINCINNAT 1410 F HOLD CINCINNAT 1565 U SEND TO GUAM DO NOT 1566 U SEND TO GUAM DO NOT 1569, 1570, OR 1571 TO BE PAIRED ANY OF THE THREE DETERMINED TO BE A MALE, breed for export via DAK 872 breed for North America 1410 breed for export via CRC 1321 breed for export via CRC Receive ONE of the following specimens that is determined to be MALE to be bred with 871 1569 U RECEIVE FROM PITTS CA 871 1570 U RECEIVE FROM PITTS CA 871 1571 U RECEIVE FROM PITTS CA 871

DISNEY AK Disney's Animal Kingdom Bay Lake, FL 1560 F SEND TO GUAM DO NOT 1561 M SEND TO GUAM DO NOT 1562 M SEND TO GUAM DO NOT GAINSVLL Santa Fe Teaching Zoo Gainesville, FL 1459 F HOLD GAINSVLL 1322 breed for export via DAK 1322 M RECEIVE FROM SD-WAP 1459 breed for export via DAK LOUISVILL Louisville Zoological Garden Louisville, KY 994 M HOLD LOUISVILL 1460 breed for export via SDZ 1460 F HOLD LOUISVILL 994 breed for export via SDZ MILWAUKEE Milwaukee County Zoological Gardens Milwaukee, WI 1293 M HOLD MILWAUKEE 1320 breed for North America 1320 F HOLD MILWAUKEE 1293 breed for North America

NZP-CRC NZP-Conservation & Res.Center Front Royal, VA 266 M HOLD NZP-CRC DO NOT 372 M HOLD NZP-CRC DO NOT 727 F SEND TO SANDIEGOZ 988 breed for North America 1292 M HOLD NZP-CRC 508 breed for North America 1556 F SEND TO GUAM DO NOT 1557 F SEND TO GUAM DO NOT 1558 M SEND TO GUAM DO NOT 1559 F SEND TO GUAM DO NOT 508 F RECEIVE FROM SANDIEGOZ 1292 breed for North America NZP-WASH National Zoological Park - Wash Washington, DC 1318 M HOLD NZP-WASH 1412 breed for export via CRC 1412 F HOLD NZP-WASH 1318 breed for export via CRC 1563 U SEND TO GUAM DO NOT

PHILADELP Philadelphia Zoological Gardens Philadelphia, PA 747 F HOLD PHILADELP 985 breed for North America 985 M HOLD PHILADELP 747 breed for North America PITTS CA National Aviary in Pittsburgh Pittsburgh, PA 981 M HOLD PITTS 993 breed for export via CRC CA 993 F HOLD PITTS CA 981 breed for export via CRC 1569 U SEND TO TBD 871 Determine and report sex ONE MALE 1570 U SEND TO TBD 871 is to be transferred to CINCINNAT to be paired with 871 the remaining TWO 1571 U SEND TO TBD 871 specimens are to be exported via CRC to GUAM as previously recommended RACINE Racine Zoological Garden Racine, WI 1319 F HOLD RACINE 1314 breed for North America 1314 M RECEIVE FROM SAN ANTON 1319 breed for North America

SAN ANTON San Antonio Zool. Gardens & Aquarium San Antonio, TX 995 F HOLD SAN ANTON 1313 breed for North America 1313 M HOLD SAN ANTON 995 breed for North America 1314 M SEND TO RACINE 1319 breed for North America 1564 F HOLD SAN ANTON DO NOT SANDIEGOZ San Diego Zoological Garden San Diego, CA 727 F RECEIVE FROM NZP-CRC 988 breed for North America 508 F SEND TO NZP-CRC 1292 breed for North America 872 M SEND TO SD-WAP 853 breed for North America 988 M HOLD SANDIEGOZ 727 breed for North America SD-WAP San Diego Wild Animal Park Escondido, CA 853 F RECEIVE FROM CINCINNAT 872 breed for North America 872 M RECEIVE FROM SANDIEGOZ 853 breed for North America 655 F HOLD SD-WAP 986 breed for North America 986 M HOLD SD-WAP 655 breed for North America 1322 M SEND TO GAINSVLL 1459 breed for export via DAK SEDGWICK Sedgwick County Zoo Wichita, KS 586 M SEND TO CHICAGOLP 1315 breed for export via SDZ 635 F HOLD SEDGWICK 841 breed for North America 841 M HOLD SEDGWICK 635 breed for North America

TRACY AV Tracy Aviary Salt Lake City, UT 543 F HOLD TRACY AV 636 breed for North America 636 M HOLD TRACY AV 543 breed for North America 1315 F SEND TO CHICAGOLP 586 breed for export via SDZ GUAM 1565 U RECEIVE FROM CINCINNAT DO NOT 1566 U RECEIVE FROM CINCINNAT DO NOT 1560 F RECEIVE FROM DISNEY AK DO NOT 1561 M RECEIVE FROM DISNEY AK DO NOT 1562 M RECEIVE FROM DISNEY AK DO NOT 1556 F RECEIVE FROM NZP-CRC DO NOT 1557 F RECEIVE FROM NZP-CRC DO NOT 1558 M RECEIVE FROM NZP-CRC DO NOT 1559 F RECEIVE FROM NZP-CRC DO NOT 1563 U RECEIVE FROM NZP-WASH DO NOT

Ordered Mean Kinship Males Females SB# MK %Known Age Location SB# MK %Known Age Location 393 0.085 100.0 12 CINCINNAT 853 0.081 100.0 6 CINCINNAT 841 0.093 100.0 6 SEDGWICK 414 0.093 100.0 12 CINCINNAT 266 0.102 100.0 15 NZP-CRC 508 0.100 100.0 9 SANDIEGOZ 636 0.115 100.0 7 TRACY AV 727 0.103 100.0 7 NZP-CRC 1292 0.117 100.0 5 NZP-CRC 655 0.115 100.0 7 SD-WAP 372 0.118 100.0 14 NZP-CRC 747 0.117 100.0 7 PHILADELP 1293 0.124 100.0 6 MILWAUKEE 635 0.123 100.0 7 SEDGWICK 1313 0.129 100.0 4 SAN ANTON 1460 0.129 100.0 2 LOUISVILL 1314 0.129 100.0 4 SAN ANTON 1459 0.143 100.0 2 GAINSVLL 986 0.130 100.0 5 SD-WAP 1564 0.143 100.0 1 SAN ANTON 988 0.130 100.0 5 SANDIEGOZ 1410 0.147 100.0 3 CINCINNAT 985 0.132 100.0 5 PHILADELP 543 0.151 100.0 9 TRACY AV 872 0.147 100.0 5 SANDIEGOZ 1560 0.152 100.0 1 DISNEY AK 1561 0.152 100.0 1 DISNEY AK 1412 0.154 100.0 3 NZP-WASH 1562 0.152 100.0 1 DISNEY AK 1565 0.162 100.0 U0 CINCINNAT 981 0.154 100.0 5 PITTS CA 1566 0.162 100.0 U0 CINCINNAT 1565 0.162 100.0 U0 CINCINNAT 995 0.163 100.0 4 SAN ANTON 1566 0.162 100.0 U0 CINCINNAT 1315 0.163 100.0 4 TRACY AV 994 0.163 100.0 4 LOUISVILL 1319 0.163 100.0 3 RACINE 1322 0.163 100.0 3 SD-WAP 871 0.164 100.0 5 CHICAGOLP 586 0.166 100.0 8 SEDGWICK 1569 0.166 100.0 U0 PITTS CA 1569 0.166 100.0 U0 PITTS CA 1570 0.166 100.0 U0 PITTS CA 1570 0.166 100.0 U0 PITTS CA 1571 0.166 100.0 U0 PITTS CA 1571 0.166 100.0 U0 PITTS CA 1556 0.169 100.0 1 NZP-CRC 1321 0.168 100.0 3 CINCINNAT 1557 0.169 100.0 1 NZP-CRC 1558 0.169 100.0 1 NZP-CRC 1559 0.169 100.0 1 NZP-CRC 1563 0.169 100.0 U1 NZP-WASH 1563 0.169 100.0 U1 NZP-WASH 1318 0.175 100.0 4 NZP-WASH 993 0.170 100.0 5 PITTS CA 1320 0.170 100.0 3 MILWAUKEE This list is current to date of analysis and values are subject to change with any birth, death, import, export, inclusion, or exclusion