Claim · model-written summary
Mesquite increases are irregular and show no clear relation to precipitation variations.
- Taxon
- velvet mesquite
Neltuma velutinae1 - Treatment
- precipitation variationse6
- Outcome
- Mesquite increasese6
- Direction
- no_changeinferrede6
Verbatim
e1“the link between velvet mesquite (Prosopis velutina Woot.) increases and precipitation trends since the turn of the century”
e6“Mesquite increases, however, are irregular, show no clear relation to precipitation variations, and are most likely the result of livestock grazing and/or fire exclusion”
Title
Historic Vegetation Change, Mesquite Increases, and Climate in Southeastern Arizona
Conrad J. Bahre; M. L. Shelton Journal of Biogeography 1993. doi:10.2307/2845722
Other claims from this paper (6)
- Observation No single trend is evident in regional precipitation during the period since 1870.
- Observation No clear evidence shows upward displacement of major vegetation types along a xeric-to-mesic gradient.
- Mechanism Identified long-term vegetation changes appear to be of anthropogenic origin.
- Mechanism Mesquite increases are most likely the result of livestock grazing and/or fire exclusion.
- Observation Long-term directional vegetation changes since the 1870s were identified in southeastern Arizona.
- Mechanism Climatic oscillations have resulted in short-term fluctuations in vegetation.