Demographic Trends in the Cactaceae

Godínez–Álvarez, Héctor; Valverde, Teresa; Ortega–Baes, Pablo

doi:10.1663/0006-8101(2003)069[0173:dtitc]2.0.co;2

Cited by 229 publications

(273 citation statements)

References 96 publications

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“…In addition, if we consider only the adult (G4 stage) individuals of M. conoideus, the rate of survival was high, which is in agreement with the patterns reported for other species in the family (Godínez-Álvarez et al 2003;Godínez-Álvarez & Valiente-Banuet 2004;Hughes et al 2011;Ferrer-Cervantes et al 2012). The decline of survival of Melocactus conoideus along of the months revealed a seasonal influence.…”

Section: Discussionsupporting

confidence: 88%

“…Plant survival can be affected by various ecological factors, including temperature and rainfall, as well as the age structure and population density (Martinez et al 1994;Godínez-Álvarez et al 2003;Mandujano et al 2007;Hughes et al 2011). During periods of low rainfall, plants often show lower growth rates and increased mortality due to the decline in soil moisture (Godínez-Álvarez et al 2003;Hughes et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…During periods of low rainfall, plants often show lower growth rates and increased mortality due to the decline in soil moisture (Godínez-Álvarez et al 2003;Hughes et al 2011). Differences among age states could affect survival among cacti because younger individuals have a lower chance of survival (Godínez-Álvarez & ValienteBanuet 2004;Mandujano et al 2007;Hughes et al 2011).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Survival dynamics of Melocactus conoideus Buining & Brederoo (Cactaceae), a threatened species endemic to northeastern Brazil

et al. 2014

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Studies on the survival of species are essential to understanding their biology and to developing effective conservation and management plans. This study aimed to determine the best model to explain the survival of the species Melocactus conoideus on the basis of time, density, age structure and habitat location, as well as to describe the interactions among those factors. The study was conducted in three M. conoideus habitat patches in the municipality of Vitória da Conquista, in the state of Bahia, Brazil, only one of which was within a "conservation unit" (protected area). In each patch, we selected 120 specimens of M. conoideus, which were marked with identification plates and classified by developmental stage and density. The survival of those individuals was monitored for a period of one year. The overall survival of M. conoideus was 87.5% and was found to correlate with the month, as well as with the interaction between the factors Patch and Density. Our results show that the survival of M. conoideus individuals is related to the intrinsic characteristics of each habitat patch and suggest that more areas should be set aside for the conservation of this species.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Survival dynamics of Melocactus conoideus Buining & Brederoo (Cactaceae), a threatened species endemic to northeastern Brazil

et al. 2014

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“…First, we need to choose study species more carefully, including sufficient numbers of common species that are neither invasive nor threatened/endangered. Several recent studies of cacti, for example, were motivated by the threatened status of the species [49]. Second, data are needed for a wider variety of perennial life forms and taxonomic groups, including other desert dominant families about which little is known (e.g.…”

Section: Precipitation Global Environmental Change and Desert Plant mentioning

confidence: 99%

A demographic approach to study effects of climate change in desert plants

Salguero‐Gómez

Siewert

Casper

et al. 2012

Phil. Trans. R. Soc. B

112

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Desert species respond strongly to infrequent, intense pulses of precipitation. Consequently, indigenous flora has developed a rich repertoire of life-history strategies to deal with fluctuations in resource availability. Examinations of how future climate change will affect the biota often forecast negative impacts, but these-usually correlative-approaches overlook precipitation variation because they are based on averages. Here, we provide an overview of how variable precipitation affects perennial and annual desert plants, and then implement an innovative, mechanistic approach to examine the effects of precipitation on populations of two desert plant species. This approach couples robust climatic projections, including variable precipitation, with stochastic, stage-structured models constructed from long-term demographic datasets of the short-lived Cryptantha flava in the Colorado Plateau Desert (USA) and the annual Carrichtera annua in the Negev Desert (Israel). Our results highlight these populations' potential to buffer future stochastic precipitation. Population growth rates in both species increased under future conditions: wetter, longer growing seasons for Cryptantha and drier years for Carrichtera. We determined that such changes are primarily due to survival and size changes for Cryptantha and the role of seed bank for Carrichtera. Our work suggests that desert plants, and thus the resources they provide, might be more resilient to climate change than previously thought.

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“…plántulas de suculentas se establezcan debajo del dosel de plantas adultas de leñosas, a diferencia de las áreas abiertas Flores-Martínez et al, 1994;Godínez-Álvarez et al, 2003;Flores y Jurado, 2003;Martí-nez-Berdeja y Valverde, 2008;Miquelajauregui y Valverde, 2010).…”

Section: Introductionunclassified

Factores abióticos involucrados en la facilitación entre leñosas y suculentas en el altiplano mexicano.

et al. 2013

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Resumen: Se estudiaron características fi siológicas y morfológicas de plántulas de especies leñosas (nodrizas) y suculentas (protegidas), las cuales se distribuyen en un gradiente ambiental en el Altiplano Mexicano. Del extremo mésico se eligieron Acacia schaffneri, A. farnesiana y Opuntia jaliscana y, del extremo xérico se escogieron A. schaffneri, Prosopis laevigata y O. streptacantha. En un experimento en invernadero, plántulas de 24 semanas de edad fueron sometidas por 90 días a diferentes niveles de radiación (alta = 2133 μmol m

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Demographic Trends in the Cactaceae

Cited by 229 publications

References 96 publications

Survival dynamics of Melocactus conoideus Buining & Brederoo (Cactaceae), a threatened species endemic to northeastern Brazil

Survival dynamics of Melocactus conoideus Buining & Brederoo (Cactaceae), a threatened species endemic to northeastern Brazil

A demographic approach to study effects of climate change in desert plants

Factores abióticos involucrados en la facilitación entre leñosas y suculentas en el altiplano mexicano.

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