Structure, history and dynamics of a mature oak-beech forest in western Indiana<sup>1</sup>

Cowell, C. Mark; Hayes, James J.

doi:10.3159/1095-5674(2007)134[215:shadoa]2.0.co;2

Cited by 14 publications

(15 citation statements)

References 22 publications

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“…Our results suggest that modern Fagus-dominated forests developed as a result of species-specific responses to multiple disturbances through the historical period, including forest harvesting, hurricanes, and deer herbivory, and the absence of fire. Thus, our results support a growing body of literature that highlights the importance of disturbance interactions in shaping long-term forest structure and composition (e.g., Veblen et al 1994, Pickett and Peterson 1995, Bigler et al 2005, Cowell and Hayes 2007. STAND DEVELOPMENT.…”

Section: Modern Forest Conditionssupporting

confidence: 83%

Multiple and interacting disturbances lead to Fagus grandifolia dominance in coastal New England

Busby

Motzkin

Foster

2008

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Section: Modern Forest Conditionssupporting

confidence: 83%

Multiple and interacting disturbances lead to Fagus grandifolia dominance in coastal New England

Busby

Motzkin

Foster

2008

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“…All sites are within 50 km of one another, in the southern Great Lakes forests ecoregion which is characterized by Alfisols (Olson et al, 2001). Extensive hardwood forests dominated by Quercus alba were common in the region prior to Euro-American settlement (Cowell and Hayes, 2007). These forests were cleared rapidly and converted to agricultural fields during the mid-19th century, and today the region is known as the Corn Belt, dominated by industrial agriculture.…”

Section: Study Sitementioning

confidence: 99%

“…are replaced by subcanopy species such as Acer saccharum (Cowell and Hayes, 2007). High mortality in the subcanopy and a limited role of canopy gaps for favoring Quercus spp.…”

Section: Age Of Trees and Ring-width Incrementsmentioning

confidence: 99%

Species-specific trajectories of nitrogen isotopes in Indiana hardwood forests, USA

McLauchlan

Craine

2012

Biogeosciences

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Abstract.Humans have drastically altered the global nitrogen (N) cycle, and these alterations have begun to affect a variety of ecosystems. In North America, N deposition rates are highest in the central US, yet there are few studies that examine whether N availability has been increasing to different tree species in the forests of the region. To determine the species-specific trajectories of N availability in secondary temperate forests experiencing high N deposition, we measured the N concentrations and composition of stable N isotopes in wood of four tree species from six hardwood forest remnants in northern Indiana, USA. Annual nitrogen deposition rates averaged 5.8 kg ha −1 from 2000 to 2008 in this region. On average, wood δ 15 N values in Quercus alba have been increasing steadily over the past 100 years. In contrast, wood δ 15 N values have been declining in three other hardwood species -Acer saccharum, Carya ovata, and Fagus grandifolia -over the same time period. The species-specific trends suggest a change in the partitioning of ammonium and nitrate among species, due to an increase in nitrification rates over time. With no apparent net change in wood δ 15 N over the past century at the stand level, there is currently little evidence for consistent trends in stand-level N availability over time in the Indiana forests.

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“…wind, fire, logging) on plant population structure and dynamics. In fact, the temperate forests of North America, including Mexico, have experienced a complex history of natural and anthropogenic disturbances (Rzedowski 1978, Cowell & Hayes 2007, Busby et al 2008, Bradshaw et al 2010, Jardel-Peláez et al 2014.…”

Section: Discussionmentioning

confidence: 99%

Population structure of Fagus grandifolia subsp. mexicana in the cloud forest of Hidalgo State, Mexico

Ortiz-Quijano¹,

Sánchez–González²,

López–Mata³

et al. 2016

Bot. Sci.

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The highest densities and largest areas of Fagus grandifolia subsp. mexicana in Mexico grow in the cloud forest of the state of Hidalgo. Although this taxon is endangered, there is little information about its population structure. This study provides data on the structure of heights, diameters and ages of Fagus in three populations in Hidalgo. Additionally, information was obtained on the structure of the beech forests, whose canopy is dominated by Fagus. At each locality, three to five 400 m 2 sample plots, depending on the size of the respective forest, were randomly selected. Within each plot, density and basal area of each species of tree and shrub with diameter greater than 2.5 cm (1.30 m) were estimated. At the species level, populations are dynamic, with a high percentage of young individuals; however, at one of the localities, changes have occurred in the last decade due to anthropogenic activity, and the structure of sizes and diameters in the youngest age categories has changed. Diameter was a good indicator of the age of the trees. At the community level, the dominance of Fagus and other species differed between localities, which is probably related to the degree of disturbance. Population and community structure are related and could be considered as indicators of changes in environmental conditions in the recent past and today. Key words: Age structure, cloud forest, diameter classes, dendrochronology, Fagus grandifolia subsp. mexicana Estructura poblacional de Fagus grandifolia subsp. mexicana en el bosque mesó-filo de montaña del estado de Hidalgo, México Resumen Las poblaciones de Fagus grandifolia subsp. mexicana con mayor densidad de individuos y con mayor extensión territorial de México se desarrollan en el bosque mesófilo de montaña del estado de Hidalgo; dado que este taxón se considera en riesgo de extinción, el objetivo del presente estudio fue aportar datos sobre su estructura de alturas, diámetros y edades en tres poblaciones de Hidalgo. Adicionalmente, se obtuvo información sobre la estructura de los bosques de haya, en los que Fagus domina el dosel. En cada localidad se establecieron al azar entre 3 y 5 parcelas de muestreo de 400 m 2 cada una, dependiendo del tamaño de cada bosque. Dentro de cada parcela se estimó la densidad y área basal de cada especie de árbol y arbusto con diámetro mayor a 2.5 cm, a 1.30 m de altura. A nivel específico, las poblaciones son dinámicas, con un alto porcentaje de individuos jóvenes; sin embargo, en una de las localidades, han ocurrido cambios en la última década por actividades antropogénicas y la estructura de alturas y diámetros en las primeras categorías de edad se ha modificado; el diámetro resultó ser un buen predictor de la edad de los árboles. A nivel comunitario, la dominancia de Fagus y otras especies difirió entre localidades, lo que probablemente se relacione con el grado de perturbación. La estructura poblacional y comunitaria están relacionadas y podrían ser consideradas como indicadoras de cambios en las condiciones ambientales ...

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Structure, history and dynamics of a mature oak-beech forest in western Indiana¹

Cited by 14 publications

References 22 publications

Multiple and interacting disturbances lead to Fagus grandifolia dominance in coastal New England

Multiple and interacting disturbances lead to Fagus grandifolia dominance in coastal New England

Species-specific trajectories of nitrogen isotopes in Indiana hardwood forests, USA

Population structure of Fagus grandifolia subsp. mexicana in the cloud forest of Hidalgo State, Mexico

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Structure, history and dynamics of a mature oak-beech forest in western Indiana1

Cited by 14 publications

References 22 publications

Multiple and interacting disturbances lead to Fagus grandifolia dominance in coastal New England

Multiple and interacting disturbances lead to Fagus grandifolia dominance in coastal New England

Species-specific trajectories of nitrogen isotopes in Indiana hardwood forests, USA

Population structure of Fagus grandifolia subsp. mexicana in the cloud forest of Hidalgo State, Mexico

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Structure, history and dynamics of a mature oak-beech forest in western Indiana¹