東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Barrier effects of roads and traffic...

Chen, Hsiang Ling.

Linked to FindBook

Google Book

Amazon

博客來

Barrier effects of roads and traffic on animal occurrence, space use, and movements.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Barrier effects of roads and traffic on animal occurrence, space use, and movements./
Author:	Chen, Hsiang Ling.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2015,
Description:	198 p.
Notes:	Source: Dissertation Abstracts International, Volume: 76-09(E), Section: B.
Contained By:	Dissertation Abstracts International76-09B(E).
Subject:	Ecology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3700188
ISBN:	9781321700404

Barrier effects of roads and traffic on animal occurrence, space use, and movements.
Chen, Hsiang Ling.

Barrier effects of roads and traffic on animal occurrence, space use, and movements. - Ann Arbor : ProQuest Dissertations & Theses, 2015 - 198 p.

Source: Dissertation Abstracts International, Volume: 76-09(E), Section: B.

Thesis (Ph.D.)--The University of Arizona, 2015.

Habitat fragmentation and destruction caused by linear infrastructure, including roads, railways, and power line corridors, are recognized as major threats to biodiversity around the world. Roads can act as barriers by impeding animal movement and restricting animal space use. An understanding of factors that influence barrier effects is important to discern the impacts of habitat fragmentation and to develop appropriate mitigation. The barrier effects of roads are driven by several distinct but not mutually exclusive mechanisms that include traffic, edge, and gap avoidance. We used an endangered forest obligate, the Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis ), as our study organism to assess effects of traffic noise on animal occurrence and demonstrated that traffic noise had spatially extensive and negative effects on site occupancy after accounting for effects of distance from roads and the environment. We investigated barrier effects of forest roads and assessed effects of traffic, road edges, and canopy gaps on space use of Mt. Graham red squirrels and compared to the response of introduced, edge-tolerant Abert's squirrels (Sciurus aberti). Forest roads acted as partial barriers for red squirrels regardless of traffic volume likely due to avoidance of canopy gap created by roads, whereas Abert's squirrels showed no avoidance of roads. Therefore, roads restricted movement and space use of a native forest-dependent species while creating habitat preferred by an introduced, edge-tolerated species. Through a meta-analysis of studies that quantified road crossing behavior by mammals, we found that all types of roads, from major highways to narrow forest roads, can impede movement for certain species of mammals. Magnitude of barrier effects of roads decreased as species body mass increased, and was affected positively by increasing road width. We suggest that the species-specific magnitude of barrier effects of roads may be anticipated with basic information from life history traits and road characteristics that are readily accessed through open resources or easily measured.

ISBN: 9781321700404Subjects--Topical Terms:

516476
Ecology.

Barrier effects of roads and traffic on animal occurrence, space use, and movements.
LDR:03093nmm a2200313 4500 001 2121087
005 20170724102946.5
008 180830s2015 ||||||||||||||||| ||eng d
020 $a 9781321700404
035 $a (MiAaPQ)AAI3700188
035 $a AAI3700188
040 $a MiAaPQ $c MiAaPQ
100 1 $a Chen, Hsiang Ling. $3 3283079
245 1 0 $a Barrier effects of roads and traffic on animal occurrence, space use, and movements.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2015
300 $a 198 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-09(E), Section: B.
500 $a Adviser: John L. Koprowski.
502 $a Thesis (Ph.D.)--The University of Arizona, 2015.
520 $a Habitat fragmentation and destruction caused by linear infrastructure, including roads, railways, and power line corridors, are recognized as major threats to biodiversity around the world. Roads can act as barriers by impeding animal movement and restricting animal space use. An understanding of factors that influence barrier effects is important to discern the impacts of habitat fragmentation and to develop appropriate mitigation. The barrier effects of roads are driven by several distinct but not mutually exclusive mechanisms that include traffic, edge, and gap avoidance. We used an endangered forest obligate, the Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis ), as our study organism to assess effects of traffic noise on animal occurrence and demonstrated that traffic noise had spatially extensive and negative effects on site occupancy after accounting for effects of distance from roads and the environment. We investigated barrier effects of forest roads and assessed effects of traffic, road edges, and canopy gaps on space use of Mt. Graham red squirrels and compared to the response of introduced, edge-tolerant Abert's squirrels (Sciurus aberti). Forest roads acted as partial barriers for red squirrels regardless of traffic volume likely due to avoidance of canopy gap created by roads, whereas Abert's squirrels showed no avoidance of roads. Therefore, roads restricted movement and space use of a native forest-dependent species while creating habitat preferred by an introduced, edge-tolerated species. Through a meta-analysis of studies that quantified road crossing behavior by mammals, we found that all types of roads, from major highways to narrow forest roads, can impede movement for certain species of mammals. Magnitude of barrier effects of roads decreased as species body mass increased, and was affected positively by increasing road width. We suggest that the species-specific magnitude of barrier effects of roads may be anticipated with basic information from life history traits and road characteristics that are readily accessed through open resources or easily measured.
590 $a School code: 0009.
650 4 $a Ecology. $3 516476
650 4 $a Wildlife conservation. $2 fast $3 542165
650 4 $a Environmental studies. $3 2122803
650 4 $a Environmental management. $3 535182
690 $a 0329
690 $a 0284
690 $a 0477
690 $a 0474
710 2 $a The University of Arizona. $b Natural Resources. $3 1020934
773 0 $t Dissertation Abstracts International $g 76-09B(E).
790 $a 0009
791 $a Ph.D.
792 $a 2015
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3700188