Wood anatomy and growth rate of seasonally dry tropical forest trees in the Marañón River Valley, northern Peru

Marcelo-Peña, José Luis; Santini, L.; Filho, Mário Tomazello

doi:10.1016/j.dendro.2019.04.008

Cited by 14 publications

(9 citation statements)

References 45 publications

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“…These macroscopic anatomical descriptions of growth rings are similar to other species of the genus Cedrela such as the species of C. odorata, with an extensive study on their growth rings (BRIENEN; ZUIDEMA; MARTÍNEZ, 2010;DÜNISCH;BAUCH;BRACAMONTE, 2002;WORBES, 1999). This marking of the marginal parenchyma growth rings with semicircular porosity also recorded in the species of the genus Cedrela such as C. kuelapensis, C. angustifolia, C. lilloi, C. montana, C. angustifolia (PAREDES;LÓPEZ;NAVARRO, 2016;PEÑA;SANTINI;SCHÖNGART et al, 2017).…”

Section: Discussionsupporting

confidence: 55%

“…The characterization of the growth rings of C. alliodora at a macroscopic level in the urban area of Puerto Maldonado agrees with the scientific literature for this species (BRICEÑO; RANGEL; BOGINO, 2016;LEÓN, 2003). These descriptions also coincide with species of the same Cordia genus such as C. iguaguana (fibrous zone and semicircular porosity), C. saccellia (fibrous zone and marginal parenchyma), C. goeldiana (fibrous zone) (PEÑA et al, 2019) and they differ from the species C. apurensis, by presenting indistinct rings (WORBES, 1999).…”

Section: Discussionmentioning

confidence: 62%

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Dendrochronology of Two Forest Species in the Urban Area of the City of Puerto Maldonado, Peru

Cahuana¹,

Guevara

Luque

et al. 2021

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Utilizando métodos dendrocronológicos, avaliamos os anéis de crescimento dessas espécies e sua relação com o clima. As amostras de madeira foram coletadas com a sonda Pressler. As medições e análises dos anéis de crescimento das espécies foram realizadas usando técnicas padrão de dendrocronologia. A série mestre (cronologia), correlacionada com os índices climáticos (precipitação e temperatura), obtidos no banco de dados meteorológico NOAA. Os anéis de crescimento das espécies que crescem na área urbana são diferençados e anuais, delimitados pelo parênquima marginal e porosidade semicircular, além disso, C. alliodora apresenta áreas fibrosas. Ambas as espécies apresentaram uma correlação entre as árvores acima de 0.50. As idades máximas foram de 13 anos para C. allidora e 32 anos para C. fissilis. Da mesma forma, a baixa correlação entre o clima e as cronologias das espécies pode sugerir a influência de outros fatores ecológicos ou antropogênicos que interferem no crescimento dessas espécies. Finalmente, é demonstrado o potencial das espécies florestais para estudos dendrocronológicos na área urbana de Puerto Maldonado, Peru. Palavras-chave: anéis de crescimento, crescimento radial, Cordia alliodora, Cedrela fissilis, Madre de Dios.

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Section: Discussionsupporting

confidence: 55%

Section: Discussionmentioning

confidence: 62%

Dendrochronology of Two Forest Species in the Urban Area of the City of Puerto Maldonado, Peru

Cahuana¹,

Guevara

Luque

et al. 2021

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“…Increment cores from conifer and broadleaved species were selected to test image acquisition differences using a flatbed scanner Epson® Perfection v750 PRO (maximum resolution 6,000 dpi) and CaptuRING. This flatbed scanner is a common digitization tool in dendrochronological research (Marcelo‐Peña et al, 2019; Navarro‐Cerrillo et al, 2020; Venegas‐González et al, 2015).…”

Section: Comparison With Flatbed Scannermentioning

confidence: 99%

CaptuRING: A do‐it‐yourself tool for wood sample digitization

et al. 2022

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1. Standard procedures to obtain high-quality images of wood samples have become a bottleneck in the digitization of dendrochronology. Digitization is currently dominated by flatbed scanners, but the use of these devices is limited by sample length and surface flatness. Although several solutions based on digital photography have been published, they lack effective digitization processes or are too expensive to be widely adopted. 2. Free open-source software and hardware has emerged as an alternative to create research tools that combine reduced costs with high reliability. Here we present CaptuRING, an open-source tool for wood sample digitization combining a do-it-yourself hardware based on Arduino® with a DSLR camera and a free open-source software with an easy-to-use graphical user interface. 3. We compared CaptuRing with image acquisition from a standard flatbed scanner Epson® V750PRO. CaptuRING outperforms scanner image resolution and sharpness, while it removes sample size limitations. Moreover, CaptuRing performs this task in less than half of the time needed by Epson® V750PRO flatbed scanner. 4. CaptuRING emerges as a reliable and low-cost tool to capture high-resolution images of wood samples boosting current digitization processes. The combination of free open software and hardware empowers dendrochronology to advance in wood sample digitization.

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“…El incremento de los diámetros en bosques secos es muy lento, con valores anuales son menores a 0,3 cm por año (Murphy y Lugo 1986, Carvajal-Vanegas y Calvo-Alvarado 2013, Mendoza et al 2016. Se han realizado estudios dendrocronológicos en especies de bosques secos tropicales que exploran la edad y el diámetro de las especies (Barbosa et al 2018, Marcelo-Peña et al 2019; sin embargo, C. scabridum es una especie que no reúne las características anatómicas para su estudio a través de la dendrocronología, si bien presenta anillos de crecimiento, éstos no son anuales (Rodríguez et al 1993, Rosero Alvarado 2011, y no podrían relacionarse con el tiempo para calcular la edad de los árboles. Por consiguiente, no sería posible conocer la edad de los árboles en las diferentes etapas de su fenología reproductiva.…”

Section: Relación Entre La Fenología Y Las Clases Diamétricasunclassified

La fenología de <i>Colicodendron scabridum</i>, sapote, en un bosque seco del norte del Perú

et al. 2022

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Colicodendron scabridum, comúnmente llamado sapote, es una de las especies arbóreas más abundantes en los bosques neotropicales estacionalmente secos y un importante alimento para la fauna. Se investigó su fenología reproductiva y su relación con la temperatura y precipitación en siete sitios de Cerro Venado en Lambayeque, Perú, entre 257 y 353 m de altitud; se instalaron siete transectos de 2 m x 300 m, con quince individuos de la especie por transecto. La duración de la floración y fructificación es variable entre individuos, sitios y años. Fructifican entre 85 y 97 % de los árboles. En promedio, el período de fructificación es más corto que el de floración y está desplazado en tres meses. Se empleó la prueba de correlación cruzada para evaluar la relación entre la floración y fructificación con el promedio mensual de temperatura y precipitación. La floración tiene una fuerte correlación negativa con la temperatura media mensual. En contraste, la frecuencia de árboles con frutos mostró una relación positiva con la temperatura. La precipitación no se correlacionó con la floración ni con la fructificación. Los resultados sugieren que la temperatura podría determinar el período de producción de frutos de la especie, afectando la disponibilidad de alimento para la vida silvestre. Las variaciones fenológicas registradas son relevantes para las decisiones de conservación de la especie.

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Wood anatomy and growth rate of seasonally dry tropical forest trees in the Marañón River Valley, northern Peru

Cited by 14 publications

References 45 publications

Dendrochronology of Two Forest Species in the Urban Area of the City of Puerto Maldonado, Peru

Dendrochronology of Two Forest Species in the Urban Area of the City of Puerto Maldonado, Peru

CaptuRING: A do‐it‐yourself tool for wood sample digitization

La fenología de <i>Colicodendron scabridum</i>, sapote, en un bosque seco del norte del Perú

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