The giant columnar cactus Pachycereus pringlei adaptively modifies its stem shape from the dry tropics into the arid mid-latitude deserts

Delgado-Fernández, Mariana; Garcillán, Pedro P.; Ezcurra, Exequiel

doi:10.1016/j.jaridenv.2017.07.004

Cited by 6 publications

(3 citation statements)

References 21 publications

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“…In the forage cactus, daily photosynthetically active radiation is close to that of most CAM plants (Nobel, 1982). Due to the allometric variation of the canopy, thickness of the cladodes, height of the plant and branches, the radiation interception models are complex to estimate (Cortazar et al, 1985;Delgado-Fernández et al, 2017;Drezner, 2017), and when radiation is not captured efficiently it compromises the plant's CO2 absorption (Ponce-Bautista et al, 2017).…”

Section: Usage Of Biophysical Resources In Forage Cactussorghum Intercroppingmentioning

confidence: 99%

Interação de agroecossistema consorciado com palma-sorgo em ambiente semiárido: uma revisão

Jardim

Silva

Souza

et al. 2020

J. Env. Anal. Progr.

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Em regiões áridas e semiáridas as condições climáticas e salinização do solo e da água proporcionam declínios na produção de forragem e comprometem o rendimento dos rebanhos. Logo, o uso de espécies forrageiras adaptadas e de alto valor nutricional, torna-se uma alternativa para manter a disponibilidade de alimentos em períodos sazonais. Dentre estas espécies, a palma forrageira é um alimento recomendado para os ruminantes, devido ao alto teor de água em suas estruturas, boa aceitabilidade e baixo custo de produção. A cultura do sorgo, também apresenta elevado potencial forrageiro, alta produção de matéria seca, baixa exigência hídrica, e adaptabilidade à consorciação, auxiliando em melhores produções em ambientes áridos e semiáridos. A utilização de sistemas consorciados acrescidos com a irrigação é de grande relevância para o manejo sustentável da pecuária local, uma vez que esse tipo de sistema maximiza o rendimento de forragem das áreas produtivas. Assim, objetivou-se com a presente revisão ressaltar a importância de estudos relacionados ao consórcio palma-sorgo em condições irrigadas no semiárido para subsidiar políticas de produção contínua de forragem. Os achados dessa revisão encorajam pesquisas no planejamento agrícola de área em ambientes negligenciados sob condições semiáridas com o consórcio de palma-sorgo para produção de forragem.

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Section: Usage Of Biophysical Resources In Forage Cactussorghum Intercroppingmentioning

confidence: 99%

Interação de agroecossistema consorciado com palma-sorgo em ambiente semiárido: uma revisão

Jardim

Silva

Souza

et al. 2020

J. Env. Anal. Progr.

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“…Plant functional traits have become central to our understanding of how plants respond to environmental variation (Gleason, 1926; Harper, 1967; Violle et al, 2007). Environmental gradients, such as exist for temperature, precipitation, and light, are known to drive plant trait variation within species (Bruna & de Andrade, 2011; Delgado‐Fernández et al, 2017; Villanueva‐Almanza et al, 2018), among species of the same genus (Cavender‐Bares et al, 2004, 2020; Mitchell et al, 2015; Savage & Cavender‐Bares, 2012; Willson et al, 2008), and across entire communities of species (Blonder et al, 2017; Cooley et al, 2004; Moles et al, 2009, 2014; Wright et al, 2004). At the same time, it is clear that functional traits can be structured by evolutionary history, such that species, genera, and communities may not vary as much as may be expected based on environmental variation alone (Funk et al, 2017; Swenson & Enquist, 2007; Webb, 2000).…”

Section: Introductionmentioning

confidence: 99%

Climate and shared evolutionary history drive trait variation among species of Neotropical understory monocots

Ávila‐Lovera,

Vargas,

Funk

et al. 2024

Ecosphere

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Environmental variation commonly drives functional trait diversity within species, among species, and across communities. Climate and shared evolutionary history can both influence trait–environment relationships. We studied variation in plant functional traits among closely related Costus species occurring across environmental gradients, the extent to which this variation occurs within single species, and how that variation may be influenced by shared evolutionary history. We measured leaf, aboveground stem, rhizome, and fine root traits of 17 species of Costus in eight sites in Costa Rica and Panama, which varied in elevation, temperature, and precipitation. We then assessed the relationships among traits and environmental variables and estimated the phylogenetic signal of the traits. We observed significant relationships between functional traits and climate. Stomatal conductance decreased, but stem density and rhizome dry matter content increased with decreasing mean annual temperature and precipitation seasonality in both cross‐species and single‐species analyses. This suggests that herbaceous species have a similar trade‐off between plant hydraulic efficiency and safety as found in woody plants. Mean annual temperature was a stronger driver of trait variation than mean annual precipitation. We also found phylogenetic signal in leaf and stem structural traits (i.e., closely related species are more similar than distantly related species), but not in physiological or belowground traits. Our results demonstrate significant trait variation within and among species of Costus, a widespread understory and herbaceous genus in the tropics, which is driven by both climate and shared evolutionary history.

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“…En algunos bosques tropicales caducifolios y trópicos secos los cactus columnares son especies muy conspicuas, aunque han sido poco estudiadas (Bullock 2000, Delgado-Fernández et al 2017, Munguía-Rosas & Sosa 2010, Vázquez-Castillo et al 2019, y aún se desconoce sobre su dinámica poblacional y el tipo de reclutamiento en ambientes más húmedos que se caracterizan por tener temporada de lluvia totalmente predecible. Por ejemplo, en la estación biológica de Chamela la precipitación promedio anual es de 731 mm (Ayala 2016) y en la selva baja caducifolia del centro del estado de Veracruz hay registros de 750 mm promedio anual (Trejo-Vázquez 1999).…”

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Estructura poblacional de dos especies de cactáceas columnares en un bosque tropical caducifolio

et al. 2020

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Autor de correspondencia: armartinez@uv.mx ResumenLa estructura poblacional es un atributo demográfico que se define en parte por el reclutamiento de las especies. Una aproximación para describir la estructura es estimando un ajuste log-normal a la distribución de tallas diamétricas en cactáceas columnares, lo que indicaría si hay un ajuste unimodal o multimodal.¿Cómo es la estructura de tamaños y la distribucón local de las columnares simpátricas Pilosocereus palmeri y Cephalocereus scoparius, que se desarrollan en el bosque tropical caducifolio del centro de Veracruz?El estudio se realizó en la selva baja caducifolia que se ubica a 5 km de la localidad de Cerro Gordo, municipio de Emiliano, Zapata, Veracruz, México, durante la época de lluvias del 2013.Medimos el diámetro basal de los individuos de las dos especies columnares en 20 parcelas rectangulares de 50 × 10 metros. Ajustamos el modelo distribución log-normal a las tallas diamétricas y obtuvimos la densidad poblacional y distribución espacial.La densidad poblacional difiere en más del doble entre las dos especies de columnares. Además, la distribución de frecuencia de tallas diamétricas de P. palmeri se ajustó a una curva log-normal a diferencia de lo estimado en C. scoparius y ambas especies tienen distribución espacial agregada.El ajuste log-normal de las tallas diamétricas de P. palmeri es unimodal e indica reclutamiento constante en la población, pero C. scoparius, tiene reclutamiento en pulsos con distribución de tipo multimodal. Además, ambas especies tienen diferente densidad poblacional, aunque similar distribución espacial agregada.Distribución, estructura, log-normal, reclutamiento. AbstractThe population structure is a demographic attribute that defines its viability and indicates the frequency of recruitment of new individuals. An approach to describe the population structure is by fitting a log-normal distribution of diametric sizes in columnar cacti, which indicates whether there is an adjust unimodal or multimodal distribution.How is the distribution of diametric sizes and local spatial distribution pattern of the sympatric Pilosocereus palmeri and Cephalocereus scoparius columnar cacti in the tropical deciduous forest of Central Veracruz?The study was conducted in the tropical deciduous forest which is located 5 km from town of Cerro Gordo area, Veracruz, Mexico, during the 2013 rainy season.We measured the basal diameter of the individuals of the two columnar species in 20 rectangular plots of size 50 × 10 meters. We adjust the log-normal distribution to the diametric size model and obtained the population density and space distribution.The population density is different more than double between the two columnar species. In addition, the frequency distribution of diametric sizes of P. palmeri adjusted a log-normal curve in contrast to that recorded in C. scoparius that was in pulse and both species have aggregate space distribution.The log-normal adjustment of the diametric sizes of P. palmeri is unimodal and indicates constant recruitm...

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The giant columnar cactus Pachycereus pringlei adaptively modifies its stem shape from the dry tropics into the arid mid-latitude deserts

Cited by 6 publications

References 21 publications

Interação de agroecossistema consorciado com palma-sorgo em ambiente semiárido: uma revisão

Interação de agroecossistema consorciado com palma-sorgo em ambiente semiárido: uma revisão

Climate and shared evolutionary history drive trait variation among species of Neotropical understory monocots

Estructura poblacional de dos especies de cactáceas columnares en un bosque tropical caducifolio

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