Intraseasonal movements between staging sites by migrating great knots: Longer distances to alternatives decrease the probability of such moves

Peng, He-Bo1,2,3; Chan, Ying-Chi2,3; Huang, Yingrong4; Choi, Chi-Yeung5,6; Zhang, Shou-Dong7,8; Ren, Sicheng9,10; Hassell, Chris J.11; Zhu, Zhenchang1; Melville, David S.12; Ma, Zhijun7,8; Lei, Guangchun9,10; Piersma, Theunis2,3,9,13

2024-04-01

10.1016/j.biocon.2024.110547

BIOLOGICAL CONSERVATION   影响因子和分区

0006-3207

1873-2917

Distance is a key constraint for animals in moving between suitable habitats, but is this also the case in staging long-distance migrating shorebirds that habitually cover thousands of kilometers during migrations? We conducted multi-year field observations, benthic prey sampling and satellite tracking, to compare how endangered great knots Calidris tenuirostris respond to the food shortage at two similarly functioning staging sites (Gaizhou and Beijingzi) in the northern Yellow Sea, China. Food availability declined by >95 % at both sites across the study period, with the intake rates of great knots declining by 87 %. However, whereas the number of great knots declined by 91 % at Gaizhou, only a 29 % decrease was seen at Beiijngzi. Satellite tracking showed that during the time when food was poor in Gaizhou, tagged great knots crossed 20 km to suitable alternative high-quality sites where food was not scarce. From Beijingzi, tagged great knots flew at least 124 km to find a good alternative. We show that longer distances to alternative sites decreased the probability of a bird leaving. Thus, habitat degradation in staging sites induced great knots to move to alternative sites, but only if such alternatives were relatively close. As staging habitats become more isolated, the negative effects of habitat degradation will be more serious due to a distance constraint on exploratory movements. This emphasizes the importance of maintaining networks of nearby high-quality refueling sites for migratory birds to provide buffers in seasons when local food conditions are lean.

Meta-sites Food decline Distance Shorebirds Alternative site Macrobenthos Satellite tracking Intake rate

SCI

英语

其他

National Key Research and Development Program of China[2023YFF1304503] ; National Natural Science Foundation of China[31830089] ; China Scholarship Council[201506100028]

Biodiversity & Conservation ; Environmental Sciences & Ecology

Biodiversity Conservation ; Ecology ; Environmental Sciences

WOS:001224801100001

ELSEVIER SCI LTD

ENVIRONMENT/ECOLOGY

Web of Science

1.Guangdong Univ Technol, Inst Environm & Ecol Engn, Guangdong Prov Key Lab Water Qual Improvement & Ec, Guangzhou, Peoples R China
2.NIOZ Royal Netherlands Inst Sea Res, Dept Coastal Syst, POB 59, NL-1790 AB Den Burg, Texel, Netherlands
3.Univ Groningen, Groningen Inst Evolutionary Life Sci GELIFES, POB 11103, NL-9700 CC Groningen, Netherlands
4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China
5.Duke Kunshan Univ, Div Nat & Appl Sci, Kunshan 215316, Jiangsu, Peoples R China
6.Duke Kunshan Univ, Environm Res Ctr, Kunshan 215316, Jiangsu, Peoples R China
7.Fudan Univ, Minist Educ, Natl Observat & Res Stn Wetland Ecosyst Yangtze Es, Key Lab Biodivers Sci & Ecol Engn, Shanghai 200433, Peoples R China
8.Fudan Univ, Inst Ecochongming SIEC, Sch Life Sci, Shanghai 200433, Peoples R China
9.Beijing Forestry Univ, CEAAF Ctr East Asian Australasian Flyway Studies, Qinghua East Rd 35,Haidian Dist, Beijing 100083, Peoples R China
10.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China
11.Global Flyway Network, POB 3089, Broome, WA 6725, Australia
12.Global Flyway Network, 1261 Dovedale Rd,RD 2 Wakefield, Nelson 7096, New Zealand
13.Univ Groningen, Ctr Global Ecol Change, BirdEyes, Fac Sci & Engn & Campus Fryslan, Zaailand 110, NL-8911 BN Leeuwarden, Netherlands

Peng, He-Bo,Chan, Ying-Chi,Huang, Yingrong,et al. Intraseasonal movements between staging sites by migrating great knots: Longer distances to alternatives decrease the probability of such moves[J]. BIOLOGICAL CONSERVATION,2024,292.

Peng, He-Bo.,Chan, Ying-Chi.,Huang, Yingrong.,Choi, Chi-Yeung.,Zhang, Shou-Dong.,...&Piersma, Theunis.(2024).Intraseasonal movements between staging sites by migrating great knots: Longer distances to alternatives decrease the probability of such moves.BIOLOGICAL CONSERVATION,292.

Peng, He-Bo,et al."Intraseasonal movements between staging sites by migrating great knots: Longer distances to alternatives decrease the probability of such moves".BIOLOGICAL CONSERVATION 292(2024).