Is the Visual Survey Method Effective for Measuring Fruit Production in Prosopis Tree Species?

Carevic, Felipe S.; Alarcón, Elena; Villacorta, Aliro

doi:10.1016/j.rama.2020.09.001

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…The climate in this area is hyperarid. Rainfall, averaging 0.6 mm per year, is very scarce, and the average annual temperature is 20.9 • C [13]. The vegetation of the area is dominated by woody mesquite species (Prosopis strombulifera, Prosopis tamarugo, Prosopis alba, and Prosopis burkartii), with an understory predominated by Distichlis spicata.…”

Section: Study Areamentioning

confidence: 99%

Identifying Plant Physiological and Climatic Drivers in the Woody Shrub Prosopis strombulifera: Effects of Spring Traits on Flower Sprouting and Fruit Production

Carevic

Contreras

Carmona

et al. 2023

Forests

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Prosopis strombulifera is a widely distributed woody species distributed along arid ecosystems in America. The interannual evolution of ecophysiological parameters and their effects on fruit production and flower sprouting in Prosopis strombulifera were studied for three years in a natural population distributed in the Atacama Desert. Xylem water column tension, pressure–volume curves, specific leaf area (SLA), and chlorophyll fluorescence parameters were assessed. Flower sprouting was assessed in different weeks using tagged flowers. To assess fruit production, four small containers were placed under twenty-five individuals, allowing the estimation of total annual production and individual production. We found considerable variability between years and between individuals. Positive relationships were found between plant water parameters, SLA, and chlorophyll variables measured in spring at flower sprouting and during fruit production. A negative correlation was found between the mean of the minimum temperatures in spring and flower sprouting. These results suggest that spring ecophysiological parameters strongly affect the reproductive status of P. strombulifera. The results also reflect the potential of this species to adapt to a hyperarid climate by preserving a high relative water content before flower sprouting.

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Section: Study Areamentioning

confidence: 99%

Identifying Plant Physiological and Climatic Drivers in the Woody Shrub Prosopis strombulifera: Effects of Spring Traits on Flower Sprouting and Fruit Production

Carevic

Contreras

Carmona

et al. 2023

Forests

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“…The latter two species are small shrubs that are sparsely distributed on the grid. The study area is characterized by extreme hyperarid conditions, with annual precipitation not exceeding 0.6 mm/ year, which occurs mainly during the summer season (Carevic et al, 2021). However, there are years with rainfall pulses that exceed 7 mm/ year, especially in sectors with an altitude above sea level higher than that present in Canchones (Arenas 2019;Lanino & Poblete, 2022).…”

Section: Study Areamentioning

confidence: 99%

Influence of “El Niño Southern Oscillation” periods on plant density of Hoffmannseggia aphylla (Fabaceae) an endangered species

Carevic

Contreras

2023

Bol. Soc. Argent. Bot.

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Backgrounds and aims: Studies on the natural regeneration of plant species under hyperaridity conditions have been scarce, mainly because of the low germination percentage of the species under these conditions. Presumably, sporadic phenomena such as the El Niño Southern Oscillation (ENSO) could have a positive effect on the natural germination of these species, although this effect has not yet been satisfactorily explored. M&M: To test the crucial assumption of our statement, a hyperarid region (average rainfall below 5 mm/year) was used as a model to determine the effect of ENSO years on the natural regeneration rate of adult individuals of the endemic legume Hoffmannseggia aphylla (retama) in the Atacama Desert, northern Chile. Thus, the vegetation density of an endemic leguminous species in a sector of the Pampa del Tamarugal, Tarapacá Region, northern Chile, was analyzed for six years. Results: The density of this species increased during ENSO years, mainly due to water flows from the highest sectors of the Tamarugal pampas, such as the town of Pica, in addition to the increase in humidity and summer rainfall. Conclusion: Our results highlight the transcendence of the ENSO in the regeneration of leguminous plants.

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“…It thus continues a long tradition of masting research focused on temperate forests in Europe, North America, Japan and New Zealand, biases that exist more generally across ecology [7,21,22]. In masting ecology, this is in part a reflection of the underlying biogeography of masting [16], but it clearly neglects important mastingdominated systems in other boreal and temperate systems [23,24], and the emerging evidence that masting is also an important reproductive strategy in the tropics and arid systems [25][26][27]. As evidenced by the pioneering work on the adaptive value and proximate mechanisms of masting in tropical Shorea species [28,29], major insights can be gained from studying these systems.…”

Section: Introductionmentioning

confidence: 99%

The ecology and evolution of synchronized reproduction in long-lived plants

Pesendorfer

Ascoli

Bogdziewicz

et al. 2021

Phil. Trans. R. Soc. B

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Populations of many long-lived plants exhibit spatially synchronized seed production that varies extensively over time, so that seed production in some years is much higher than on average, while in others, it is much lower or absent. This phenomenon termed masting or mast seeding has important consequences for plant reproductive success, ecosystem dynamics and plant–human interactions. Inspired by recent advances in the field, this special issue presents a series of articles that advance the current understanding of the ecology and evolution of masting. To provide a broad overview, we reflect on the state-of-the-art of masting research in terms of underlying proximate mechanisms, ontogeny, adaptations, phylogeny and applications to conservation. While the mechanistic drivers and fitness consequences of masting have received most attention, the evolutionary history, ontogenetic trajectory and applications to plant–human interactions are poorly understood. With increased availability of long-term datasets across broader geographical and taxonomic scales, as well as advances in molecular approaches, we expect that many mysteries of masting will be solved soon. The increased understanding of this global phenomenon will provide the foundation for predictive modelling of seed crops, which will improve our ability to manage forests and agricultural fruit and nut crops in the Anthropocene. This article is part of the theme issue ‘The ecology and evolution of synchronized seed production in plants’.

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Is the Visual Survey Method Effective for Measuring Fruit Production in Prosopis Tree Species?

Cited by 3 publications

References 20 publications

Identifying Plant Physiological and Climatic Drivers in the Woody Shrub Prosopis strombulifera: Effects of Spring Traits on Flower Sprouting and Fruit Production

Identifying Plant Physiological and Climatic Drivers in the Woody Shrub Prosopis strombulifera: Effects of Spring Traits on Flower Sprouting and Fruit Production

Influence of “El Niño Southern Oscillation” periods on plant density of Hoffmannseggia aphylla (Fabaceae) an endangered species

The ecology and evolution of synchronized reproduction in long-lived plants

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