ADULT HOME RANGE SIZE AND JUVENILE MOVEMENTS OF GRAY HAWKS IN THE LOWER RIO GRANDE VALLEY, TEXAS, USA

被引：1

作者：

Stewart, Michael T. ^{[1
]}

Clark, William S. ^{[2
]}

Millsap, Brian A. ^{[3
]}

Bibles, Brent D. ^{[4
]}

Brush, Timothy ^{[5
]}

机构：

[1] 1816 Clare Dr, Alice, TX 78332 USA

[2] 32301 South Whitehouse Circle, Harlingen, TX 78550 USA

[3] US Fish & Wildlife Serv, Div Migratory Bird Management, Natl Raptor Program, 2105 Osuna NE, Albuquerque, NM 87113 USA

[4] Unity Coll, Silver City, NM 88061 USA

[5] Univ Texas Rio Grande Valley, Dept Biol, Edinburg, TX 78539 USA

来源：

JOURNAL OF RAPTOR RESEARCH | 2023年 / 57卷 / 01期

关键词：

Gray Hawk; Buteo plagiatus; backpack harness; GPS-GSM transmitter; home range; juvenile movement; VHF transmitter; FORESTS;

D O I：

10.3356/JRR-22-23

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

We studied the natural history of Gray Hawks (Buteo plagiatus) in the Lower Rio Grande Valley of Texas. We used GPS-GSMtelemetry to quantify dispersal time and distance, winter home range size of juveniles, and home range size of adults. Home ranges were calculated using the kernel Brownian bridge home range estimator. The median dispersal date for 14 juvenile Gray Hawks was 11 August and they traveled a median straight-line distance of 453 km. Mean winter home range sizes for 11 juveniles was 707 ha. For juveniles, female winter home ranges were larger than those ofmales, and juvenile winter home ranges were larger in natural than in urban areas. Mean 95% home range sizes for 20 adult Gray Hawks was 530 ha. Mean adult male home range size was larger in natural than in urban areas. Adult Gray Hawks remained in their home ranges year-round.

引用

页码：1 / 11

页数：11

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