The ecology of Yucca (Agavaceae) over an environmental gradient in the Mohave Desert: distribution and interspecific interactions

Yeaton, Richard I.; Yeaton, Robin W.; Waggoner, John P.; Horenstein, J.E.

doi:10.1016/s0140-1963(18)31335-1

Cited by 17 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…digital elevation model (DEM) was used to provide elevation values (30 m resolution); from this, slope and aspect were derived. Parker (1991) found that slope was an important determinant in Sonoran vegetation distribution, while elevation was important in explaining the range of several Yucca species in the Mojave Desert (Yeaton et al 1985). Aspect was scaled to an index of “southwestness” using a cosine transform (cos(aspect−225°)), a modification of an original formula proposed by Beers, Dress, and Wensel (1966).…”

Section: Methodsmentioning

confidence: 99%

Incorporating Spatial Dependence in Predictive Vegetation Models: Residual Interpolation Methods

Miller

2005

The Professional Geographer

View full text Add to dashboard Cite

Predictive vegetation modeling can be used statistically to relate the distribution of vegetation across a landscape as a function of important environmental variables. Often these models are developed without considering the spatial pattern that is inherent in biogeographical data, resulting from either biotic processes or missing or misspecified environmental variables. Including spatial dependence explicitly in a predictive model can be an efficient way to improve model accuracy with the available data. In this study, model residuals were interpolated and added to model predictions, and the resulting prediction accuracies were assessed. Adding kriged residuals improved model accuracy more often than adding simulated residuals, although some alliances showed no improvement or worse accuracy when residuals were added. In general, the prediction accuracies that were not increased by adding kriged residuals were either rare in the sample or had high nonspatial model accuracy. Regression interpolation methods can be an important addition to current tools used in predictive vegetation models as they allow observations that are predicted well by environmental variables to be left alone, while adjusting over-and underpredicted observations based on local factors.

show abstract

Section: Methodsmentioning

confidence: 99%

Incorporating Spatial Dependence in Predictive Vegetation Models: Residual Interpolation Methods

Miller

2005

The Professional Geographer

View full text Add to dashboard Cite

show abstract

“…In addition to Y. brevifolia , two other Yucca species in southern California have indehiscent fruits with large seeds and are candidates for animal dispersal: Y. schidigera and Y. baccata ( Yeaton et al, 1985 ;Waitman et al, 2012 ). Yucca schidigera leaf rosettes are elevated (0.5-5 m) on stems, which likely favors visits by climbing rodents ( Gucker, 2006b ).…”

Section: Discussionmentioning

confidence: 99%

Yucca brevifolia fruit production, predispersal seed predation, and fruit removal by rodents during two years of contrasting reproduction

Borchert¹,

DeFalco

2016

American J of Botany

View full text Add to dashboard Cite

Yucca brevifolia Englem. (Joshua tree) is perhaps the most recognizable living symbol of the Mojave Desert. In the late Pleistocene, this arborescent yucca was widely distributed in most of southeastern California, southern Nevada, southwestern Arizona, and northern Mexico ( Cole et al., 2011 ). Warming during the Holocene caused its range to contract northward into the present-day archipelago of large, disjunct patches scattered across eastern California, southern Nevada western Arizona, and southwestern Utah ( Cole et al., 2011 ). According to climate models, the current distribution of Y. brevifolia is predicted to shrink even further as the Southwest deserts continue to warm (

show abstract

“…Joshua trees appear to compete for soil moisture, because plant size increases with increasing spacing from other Yucca plants (Yeaton et al 1985). Availability of soil moisture likely affects the water content, growth, and size of plants.…”

Section: William D Wiesenbornmentioning

confidence: 99%

Bagnalliella mojave(Thysanoptera: Phlaeothripidae) Thrips Inhabit Small and IsolatedYucca brevifolia(Agavaceae) Host Plants

Wiesenborn

2015

Florida Entomologist

View full text Add to dashboard Cite

The ecology of Yucca (Agavaceae) over an environmental gradient in the Mohave Desert: distribution and interspecific interactions

Cited by 17 publications

References 14 publications

Incorporating Spatial Dependence in Predictive Vegetation Models: Residual Interpolation Methods

Incorporating Spatial Dependence in Predictive Vegetation Models: Residual Interpolation Methods

Yucca brevifolia fruit production, predispersal seed predation, and fruit removal by rodents during two years of contrasting reproduction

Bagnalliella mojave(Thysanoptera: Phlaeothripidae) Thrips Inhabit Small and IsolatedYucca brevifolia(Agavaceae) Host Plants

Contact Info

Product

Resources

About