| Tag |
First Indicator |
Second Indicator |
Subfields |
| LEADER |
00000ctm a2200000Ia 4500 |
| 001 |
in00000015548 |
| 005 |
20220104090801.0 |
| 008 |
880517s1986 xx a bm 000 0 eng d |
| 035 |
|
|
|9 AAA8218AM
|
| 035 |
|
|
|a (OCoLC)17963696
|
| 035 |
|
|
|a (OCoLC)ocm17963696
|
| 040 |
|
|
|a TXA
|b eng
|c TXA
|d OCLCQ
|d OCLCG
|d OCLCQ
|d OCLCO
|d TXA
|
| 049 |
|
|
|a TXAM
|
| 099 |
|
|
|a 1986
|a Disser-
|a tation
|a F238
|
| 100 |
1 |
|
|a Farquhar, Charles Craig,
|d 1954-
|
| 245 |
1 |
0 |
|a Ecology and breeding behavior of the white-tailed hawk on the northern coastal prairies of Texas /
|
| 264 |
|
1 |
|c 1986.
|
| 300 |
|
|
|a x, 71 leaves :
|b illustrations ;
|c 29 cm
|
| 336 |
|
|
|a text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a unmediated
|b n
|2 rdamedia
|
| 338 |
|
|
|a volume
|b nc
|2 rdacarrier
|
| 500 |
|
|
|a "Major subject: Wildlife and Fisheries Sciences."
|
| 500 |
|
|
|a Typescript (photocopy).
|
| 500 |
|
|
|a Vita.
|
| 502 |
|
|
|b Ph. D.
|c Texas A & M University
|d 1986
|
| 504 |
|
|
|a Includes bibliographical references (leaves 61-67).
|
| 520 |
3 |
|
|a I examined the ecology and breeding biology of a population of white-tailed hawks (Buteo albicaudatus hypospodius; 6 pairs, 1983, 1984; 7 pairs 1985) at the Attwater Prairie Chicken National Wildlife Refuge in Colorado County, Texas. The hawks nested almost exclusively (18/20 nests) in Macartney rose (Rosa bracteata). Incubation periods ranged from 29-32 days (x = 31.2 da.; Mar-Apr) and fledging occurred at 7-7.5 weeks (May-Jun). The fledglings were dependent upon their parents for up to 7 months after leaving the nest. Adults typically chased the immatures away at the onset of the breeding season. Subadult hawks occasionally returned to their natal territories. Utilization distributions (70%), were estimated using sight locations from 10 pairs of adults (1984-1985) and radio locations from 2 of the immatures (1984). Immatures dramatically increased their home ranges over their first 7 months of flight (37 ha-147 ha, x = 59 ha for bird #9; 16 ha-199 ha, x = 72 ha for bird #14). Home ranges of adult males were nearly 3 times larger than those of females during the breeding season (males, x = 33 ha, females, x = 14 ha, 1984; males, x = 34 ha, females, x = 13 ha, 1985). Males increased and females decreased their home ranges after the onset of incubation. All pairs always copulated and always laid eggs. Nesting success was high in 1983 (100%) and 1985 (100%) and lower in 1984 (71%). Breeding adults performed an interesting behavior which may function in courtship or pair bonding, not previously described, involving placing of long woody stems or branches up to 2.5 m in length on nests. I recorded 1 instance of renesting when 1 egg was abandoned early in the season; the pair fledged 2 young later in the season. Time-activity data suggest this species alters the length of its daily incubation sessions, possibly in accordance with temperature. From field observations, I noted distinct intersexual variation in alarm calls which is useful in field-sexing. Prey taxa are variable: biomass is composed chiefly of small mammals, birds, and reptiles.
|
| 650 |
|
0 |
|a Hawks
|x Ecology.
|
| 650 |
|
0 |
|a Hawks
|x Reproduction.
|
| 650 |
|
4 |
|a Major wildlife and fisheries sciences.
|
| 655 |
|
7 |
|a Academic theses
|2 lcgft
|
| 700 |
1 |
|
|a Arnold, Keith A.,
|e degree supervisor.
|
| 700 |
1 |
|
|a Odom, Ted W.,
|e degree committee member.
|
| 700 |
1 |
|
|a Silvy, Nova J.,
|e degree committee member.
|
| 700 |
1 |
|
|a Slack, R. Douglas,
|e degree committee member.
|
| 710 |
2 |
|
|a Texas A & M University,
|e degree granting institution.
|
| 856 |
4 |
1 |
|u http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=752633971&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD
|z Link to ProQuest copy
|t 0
|
| 856 |
4 |
1 |
|u https://hdl.handle.net/1969.1/DISSERTATIONS-21927
|z Link to OAKTrust copy
|t 0
|
| 994 |
|
|
|a C0
|b TXA
|
| 999 |
f |
f |
|s 46016a6a-9d45-3c8c-a209-6db48f9b1972
|i 11a2c7ce-73c0-3509-a769-4024e7bc1881
|t 0
|
| 952 |
f |
f |
|p noncirc
|a Texas A&M University
|b J.J. Pickle Campus
|c High Density Repository
|s HDR
|d Remote Storage
|t 0
|e 1986 Dissertation F238
|h Other scheme
|i unmediated -- volume
|m A14839615512
|
| 952 |
f |
f |
|a Texas A&M University
|b College Station
|c Electronic Resources
|s www_evans
|d Available Online
|t 0
|e 1986 Dissertation F238
|h Other scheme
|
| 998 |
f |
f |
|a 1986 Dissertation F238
|t 0
|l Remote Storage
|
| 998 |
f |
f |
|a 1986 Dissertation F238
|t 0
|l Available Online
|