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You searched for: Source 2011 v.33 no.1 Remove constraint Source: 2011 v.33 no.1 Subject rangelands Remove constraint Subject: rangelands
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1. Vegetation Maps at the Passage of the Taylor Grazing Act (1934): A Baseline to Evaluate Rangeland Change After a Regime Shift

Author:
Rhonda Skaggs; Zach Edwards; Brandon Bestelmeyer; John B. Wright; Jeb Williamson; Phil Smith
Source:
Rangelands 2011 v.33 no.1 pp. 13-19
ISSN:
0190-0528
Subject:
base maps; grazing; public lands; rangelands; surveys; vegetation cover; New Mexico
Abstract:
... Data from New Mexico range survey maps created shortly after the passage of the Taylor Grazing Act in 1934 have been preserved and are being used to document changes in vegetation. The range survey data were collected at the time of a critical shift in rangeland policy and practice in federal lands of the United States. This paper describes the historical context of the post-Taylor range surveying ...
Handle:
10113/57491
DOI:
10.2111/rangelands-d-10-00031.1

2. A new empirical model of sub-daily rainfall intensity and its application in a rangeland biophysical model

Author:
Fraser, G.W.; Carter, J.O.; McKeon, G.M.; Day, K.A.
Source:
Rangeland journal 2011 v.33 no.1 pp. 37-48
ISSN:
1036-9872
Subject:
rangelands; pastures; equations; geographical variation; data collection; growth models; rain; rain intensity; hydrologic models; temperature; runoff; climate; Australia
Abstract:
... Sub-daily rainfall intensity has a significant impact on runoff and erosion rates in northern Australian rangelands. However, it has been difficult to include sub-daily rainfall intensity in rangeland biophysical models using historical climate data due to the limited number of pluviograph stations with long-term records. In this paper a new empirical model ('Temperature I15' model) was developed ...
DOI:
10.1071/RJ10037

3. Habitat use and trophic structure in a microbat assemblage on the edge of the southern rangelands, Western Australia: insights from stable isotope analysis

Author:
Dunlop, J.N.; Bullen, R.D.
Source:
Rangeland journal 2011 v.33 no.1 pp. 1-7
ISSN:
1036-9872
Subject:
Chiroptera; Formicidae; arid zones; climate change; drought; fur; habitats; rangelands; shrublands; stable isotopes; trophic relationships; woodlands; Western Australia
Abstract:
... The microbat assemblage on Charles Darwin Reserve was investigated between 2007 and 2009 to provide a benchmark for monitoring long-term responses to climate change on a major bioregional boundary, the mulga-eucalypt line. Stable isotope analysis of bat fur was used to interpret the current local habitat and trophic relationships between microbat species with different biogeographical affinities. ...
DOI:
10.1071/RJ10028

4. Increased grazing and dominance of an exotic pasture (Bothriochloa pertusa) affects vertebrate fauna species composition, abundance and habitat in savanna woodland

Author:
Kutt, Alex S.; Fisher, Alaric
Source:
Rangeland journal 2011 v.33 no.1 pp. 49-58
ISSN:
1036-9872
Subject:
Bothriochloa pertusa; Eucalyptus; birds; cattle; ecosystems; fauna; grasses; grazing; habitats; indigenous species; introduced species; landscapes; models; pastures; rangelands; reptiles; savannas; species diversity; trees; weeds; woodlands; Queensland
Abstract:
... The invasion of exotic pasture species into intact woodlands has the potential to affect native fauna by altering habitat structure and ecosystem function. The spread of these weeds is generally in concert with cattle grazing, so that fauna or habitat change is due to multiple interrelated causes. In this study we investigated whether the spread of the introduced pasture grass Bothriochloa pertusa ...
DOI:
10.1071/RJ10065