Influence of climate stability on endemism of the vascular plants of the Chihuahuan Desert

Sosa, Victoria; Vásquez‐Cruz, Marilyn; Quintanilla, José Ángel Villarreal

doi:10.1016/j.jaridenv.2020.104139

Cited by 15 publications

(13 citation statements)

References 60 publications

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“…In addition to the abiotic conditions, A. lechuguilla also has to respond to biotic pressures. Allelopathic interactions are crucial in hyper-diversified ecosystems such as the xerophytic shrublands, where the lechuguilla grows [ 60 , 61 ]. Among the flavonoids found in the A. lechuguilla residue ( Table 1 and Table 2 ) the flavone, catechin, and O-glycoside derivatives were previously identified as being involved in seed germination inhibition [ 62 ].…”

Section: Discussionmentioning

confidence: 99%

High Throughput Profiling of Flavonoid Abundance in Agave lechuguilla Residue-Valorizing under Explored Mexican Plant

Morreeuw

Quiroz

Ríos-González

et al. 2021

Plants

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Agave lechuguilla waste biomass (guishe) is an undervalued abundant plant material with natural active compounds such as flavonoids. Hence, the search and conservation of flavonoids through the different productive areas have to be studied to promote the use of this agro-residue for industrial purposes. In this work, we compared the proportion of total flavonoid content (TFC) among the total polyphenolics (TPC) and described the variation of specific flavonoid profiles (HPLC-UV-MS/MS) of guishe from three locations. Descriptive environmental analysis, using remote sensing, was used to understand the phytochemical variability among the productive regions. Furthermore, the effect of extractive solvent (ethanol and methanol) and storage conditions on specific flavonoid recovery were evaluated. The highest TPC (16.46 ± 1.09 GAE/g) was observed in the guishe from region 1, which also had a lower normalized difference water index (NDWI) and lower normalized difference vegetation index (NDVI). In contrast, the TFC was similar in the agro-residue from the three studied areas, suggesting that TFC is not affected by the studied environmental features. The highest TFC was found in the ethanolic extracts (6.32 ± 1.66 QE/g) compared to the methanolic extracts (3.81 ± 1.14 QE/g). Additionally, the highest diversity in flavonoids was found in the ethanolic extract of guishe from region 3, which presented an intermedia NDWI and a lower NDVI. Despite the geo-climatic induced variations of the phytochemical profiles, the results confirm that guishe is a valuable raw material in terms of its flavonoid-enriched bioactive extracts. Additionally, the bioactive flavonoids remain stable when the conditioned agro-residue was hermetically stored at room temperature in the dark for nine months. Finally, the results enabled the establishment of both agro-ecological and biotechnological implications.

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Section: Discussionmentioning

confidence: 99%

High Throughput Profiling of Flavonoid Abundance in Agave lechuguilla Residue-Valorizing under Explored Mexican Plant

Morreeuw

Quiroz

Ríos-González

et al. 2021

Plants

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“…We call particular attention to the strong pattern of mixed butterfly phylogenetic endemism in all of the warm deserts of North America. Although more work is needed, it would be unsurprising if these warm deserts were generally areas of diversification and endemism for many clades, based on continuing floristic (Sosa et al, 2020) and faunistic work (Riddle and Hafner, 2006).…”

Section: Comparisons Of Spatial Phylodiversity Patterns Between Butterflies and Flowering Plantsmentioning

confidence: 99%

Spatial phylogenetics of butterflies in relation to environmental drivers and angiosperm diversity across North America

et al. 2021

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Broad-scale, quantitative assessments of insect biodiversity and the factors shaping it remain particularly poorly explored. Here we undertook a spatial phylogenetic analysis of North American butterflies to test whether climate stability and temperature gradients have shaped their diversity and endemism. We also performed the first quantitative comparisons of spatial phylogenetic patterns between butterflies and flowering plants. We expected concordance between the two groups based on shared historical environmental drivers and presumed strong butterfly-host plant specializations. We instead found that biodiversity patterns in butterflies are strikingly different from flowering plants, especially warm deserts. In particular, butterflies show different patterns of phylogenetic clustering compared with flowering plants, suggesting differences in habitat conservation between the two groups. These results suggest that shared biogeographic histories and trophic associations do not necessarily assure similar diversity outcomes. The work has applied value in conservation planning, documenting warm deserts as a North American butterfly biodiversity hotspot.

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“…We call particular attention to the strong pattern of mixed butterfly phylogenetic endemism in all of the warm deserts of North America. While more work is needed, it would be unsurprising if these warm deserts were generally areas of diversification and endemism for many clades, based on continuing floristic 74 and faunistic work 75 .…”

Section: Comparisons Of Spatial Phylodiversity Patterns Between Buttementioning

confidence: 99%

Spatial phylogenetics of butterflies in relation to environmental drivers and angiosperm diversity across North America

Earl

Belitz

Laffan

et al. 2020

Preprint

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Broad-scale quantitative assessments of biodiversity and the factors shaping it remain particularly poorly explored in insects. Here, we undertook a spatial phylogenetic analysis of North American butterflies via assembly of a time-calibrated phylogeny of the region coupled with a unique, complete range assessment for ~75% of the known species. We utilized a suite of phylodiversity metrics and associated environmental data to test whether climate stability and temperature gradients have shaped North American butterfly phylogenetic diversity and endemism. We also undertook the first direct, quantitative comparisons of spatial phylogenetic patterns between butterflies and flowering plants in North America. We expected concordance between butterflies and angiosperms based on both shared historical environmental drivers and presumed strong butterfly-host plant specializations. We instead found that biodiversity patterns in butterflies are strikingly different from flowering plants in some regions of the continent. In particular, the warm desert regions of the southwestern United States and Mexico showed surprisingly high butterfly phylogenetic diversity and endemism, in contrast to much lower values for angiosperms. Butterflies did not show patterns of phylogenetic clustering as found in flowering plants, suggesting differences in habitat conservation between the two groups. Finally, we found weak relationships and spatially structured biases in relative branching timing between angiosperms and butterflies. These results suggest that shared biogeographic histories and trophic associations do not necessarily assure similar diversity outcomes. The work has applied value in conservation planning, documenting warm deserts as an important North American butterfly biodiversity hotspot.

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Influence of climate stability on endemism of the vascular plants of the Chihuahuan Desert

Cited by 15 publications

References 60 publications

High Throughput Profiling of Flavonoid Abundance in Agave lechuguilla Residue-Valorizing under Explored Mexican Plant

High Throughput Profiling of Flavonoid Abundance in Agave lechuguilla Residue-Valorizing under Explored Mexican Plant

Spatial phylogenetics of butterflies in relation to environmental drivers and angiosperm diversity across North America

Spatial phylogenetics of butterflies in relation to environmental drivers and angiosperm diversity across North America

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