How the west was once: vegetation change in south‐west Queensland from 1930 to 1995

Witt, Bradd; Luly, Jon; Fairfax, R. J.

doi:10.1111/j.1365-2699.2006.01531.x

Cited by 24 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Use of satellite images or aerial photographs to study woody plant encroachment and the spatial pattern of vegetation have received increased attention [ Archer et al , 2004; Fensham and Fairfax , 2003; Laliberte et al , 2004; Witt et al , 2006]. However, aerial photos are seldom available prior to 1935, and satellite images useful for discerning vegetation dynamics at the landscape scale are generally not available prior to about 1980 [ Loveland and DeFries , 2004].…”

Section: Introductionmentioning

confidence: 99%

Landscape‐scale vegetation dynamics inferred from spatial patterns of soil δ¹³C in a subtropical savanna parkland

Bai

Boutton

et al. 2009

J. Geophys. Res.

View full text Add to dashboard Cite

[1] Grasslands and savannas around the world have experienced woody plant encroachment during the past 100 years, but we know little regarding the manner in which woody plants spread across the landscape. We used soil d 13 C, aerial photography, and geostatistics to quantify patterns of woody encroachment in a 160 Â 100 m georeferenced grid subdivided into 10 Â 10 m cells in a savanna parkland landscape in southern Texas. d 13 C contour maps revealed that centers of closed contours coincided with centers of woody patches, and that larger woody patches developed from smaller woody plant clusters that spread laterally and coalesced. Areas where woody patches were expanding into grassland were characterized by low densities of soil d 13 C contour lines, and indicated the direction and extent of woody encroachment. Conversely, areas with high contour densities represented grassland-woodland boundaries that were temporally stable. Indeed, aerial photos from 1930, 1941, 1982, and 2003 confirmed that woody patches with low spatial variability in d 13 C corresponded to areas where woody plants had encroached during the past 30-75 years. While aerial photos can only record vegetation cover at the photo acquisition time, kriged maps of soil d 13 C allowed us to accurately reconstruct long-term temporal dynamics of woody plant encroachment into grassland. This approach can reliably reconstruct landscape-scale vegetation changes in areas where historical aerial photography or satellite imagery are unavailable and provides a strong spatial context for studies aimed at understanding the functional consequences of vegetation change.

show abstract

Section: Introductionmentioning

confidence: 99%

Landscape‐scale vegetation dynamics inferred from spatial patterns of soil δ¹³C in a subtropical savanna parkland

Bai

Boutton

et al. 2009

J. Geophys. Res.

View full text Add to dashboard Cite

show abstract

“…Other studies suggest a lack of certainty as to past impacts and future beneficial outcomes (e.g. Witt et al, 2006;Witt, 2013). Recent droughts and very recent floods appear to confirm an ongoing irregular cycle.…”

Section: Fab)mentioning

confidence: 96%

Transition and History in the Grazing Industry – Then … and Now?

Yeates¹

2020

The Proceedings of the Royal Society of Queensland

View full text Add to dashboard Cite

“…While most palaeoenvironmental work has focused on natural faecal deposits in caves and other protected sites like rock ledges, it is also possible to track historical vegetation changes using accumulations of faeces from domesticated taxa. For example, a series of studies (Witt, Moll & Beeton, 1997; Witt et al ., 2000; Witt, Luly & Fairfax, 2006) examined historic vegetation change in Australian rangelands since the 1930s using sheep faecal accumulations beneath shearing sheds. Elevated shearing sheds are common in the semi‐arid rangelands of Australia and provide a protected area where sheep faeces can accrue over decades.…”

Section: Applications Of C and N Isotopes In Faecesmentioning

confidence: 99%

The prospects of poop: a review of past achievements and future possibilities in faecal isotope analysis

2023

View full text Add to dashboard Cite

What can the stable isotope values of human and animal faeces tell us? This often under‐appreciated waste product is gaining recognition across a variety of disciplines. Faecal isotopes provide a means of monitoring diet, resource partitioning, landscape use, tracking nutrient inputs and cycling, and reconstructing past climate and environment. Here, we review what faeces are composed of, their temporal resolution, and how these factors may be impacted by digestive physiology and efficiency. As faeces are often used to explore diet, we clarify how isotopic offsets between diet and faeces can be calculated, as well as some differences among commonly used calculations that can lead to confusion. Generally, faecal carbon isotope (δ13C) values are lower than those of the diet, while faecal nitrogen isotope values (δ15N) values are higher than in the diet. However, there is considerable variability both within and among species. We explore the role of study design and how limitations stemming from a variety of factors can affect both the reliability and interpretability of faecal isotope data sets. Finally, we summarise the various ways in which faecal isotopes have been applied to date and provide some suggestions for future research. Despite remaining challenges, faecal isotope data are poised to continue to contribute meaningfully to a variety of fields.

show abstract

How the west was once: vegetation change in south‐west Queensland from 1930 to 1995

Abstract: and Russell J FairfaxQueensland Herbarium, Mt. Coot-tha Rd, Toowong, QLD 4066 short title: How the west was once

Cited by 24 publications

References 22 publications

Landscape‐scale vegetation dynamics inferred from spatial patterns of soil δ¹³C in a subtropical savanna parkland

Landscape‐scale vegetation dynamics inferred from spatial patterns of soil δ¹³C in a subtropical savanna parkland

Transition and History in the Grazing Industry – Then … and Now?

The prospects of poop: a review of past achievements and future possibilities in faecal isotope analysis

Contact Info

Product

Resources

About

How the west was once: vegetation change in south‐west Queensland from 1930 to 1995

Abstract: and Russell J FairfaxQueensland Herbarium, Mt. Coot-tha Rd, Toowong, QLD 4066 short title: How the west was once

Cited by 24 publications

References 22 publications

Landscape‐scale vegetation dynamics inferred from spatial patterns of soil δ13C in a subtropical savanna parkland

Landscape‐scale vegetation dynamics inferred from spatial patterns of soil δ13C in a subtropical savanna parkland

Transition and History in the Grazing Industry – Then … and Now?

The prospects of poop: a review of past achievements and future possibilities in faecal isotope analysis

Contact Info

Product

Resources

About

Landscape‐scale vegetation dynamics inferred from spatial patterns of soil δ¹³C in a subtropical savanna parkland

Landscape‐scale vegetation dynamics inferred from spatial patterns of soil δ¹³C in a subtropical savanna parkland