scholarly journals Effects of soil type and light on height growth, biomass partitioning, and nitrogen dynamics on 22 species of tropical dry forest tree seedlings: Comparisons between legumes and nonlegumes

2017 ◽  
Vol 104 (3) ◽  
pp. 399-410 ◽  
Author(s):  
Christina M. Smith-Martin ◽  
Maria G. Gei ◽  
Ellie Bergstrom ◽  
Kristen K. Becklund ◽  
Justin M. Becknell ◽  
...  
Keyword(s):  
Soil Type ◽  
Tropical Dry Forest ◽  
Forest Tree ◽  
Nitrogen Dynamics ◽  
Height Growth ◽  
Biomass Partitioning ◽  
Dry Forest ◽  
Tree Seedlings

scholarly journals Nutrient deposition enhances post-fire survival in non-N-fixing savanna tree seedlings

2018 ◽  
Author(s):  
Varun Varma ◽  
Mahesh Sankaran
Keyword(s):  
Community Composition ◽  
Seedling Growth ◽  
Growth Rates ◽  
Seedling Survival ◽  
Tropical Dry Forest ◽  
Forest Tree ◽  
Dry Forest ◽  
Tree Seedlings ◽  
Tree Seedling ◽  
Nutrient Deposition

AbstractNutrient deposition can modify plant growth rates and potentially alter the susceptibility of plants to disturbance events, while also influencing properties of disturbance regimes. In mixed tree-grass ecosystems, such as savannas and tropical dry forests, tree seedling growth rates strongly influence the ability of seedlings to survive fire (i.e. post-fire seedling survival), and hence, vegetation structure and tree community composition. However the effects of nutrient deposition on the susceptibility of recruiting trees to fire are poorly quantified. In a field experiment, seedlings of multiple N-fixing and non-N-fixing tropical dry forest tree species were exposed to nitrogen (N) and phosphorus (P) fertilisation, and fire. We quantified nutrient-mediated changes in a) mean seedling growth rates; b) growth rates of the fastest growing individuals and c) post-fire seedling survival. N-fixers had substantially higher baseline post-fire seedling survival, that was unaffected by nutrient addition. Fertilisation, especially with N, increased post-fire survival probabilities in non-N-fixers by increasing the growth rates of the fastest growing individuals. These results suggest that fertilisation can lead to an increase in the relative abundance of non-N-fixers in the resprout community, and thereby, alter the community composition of tropical savanna and dry forest tree communities in the long-term.

Effect of forest fragmentation on fruit and seed predation of the tropical dry forest tree Ceiba aesculifolia

2008 ◽  
Vol 141 (1) ◽  
pp. 241-248 ◽  
Author(s):  
Yvonne Herrerías-Diego ◽  
Mauricio Quesada ◽  
Kathryn E. Stoner ◽  
Jorge A. Lobo ◽  
Yared Hernández-Flores ◽  
...  
Keyword(s):  
Forest Fragmentation ◽  
Seed Predation ◽  
Tropical Dry Forest ◽  
Forest Tree ◽  
Dry Forest ◽  
Ceiba Aesculifolia

scholarly journals Supervivencia y crecimiento de plántulas de Jacaratia mexicana inoculadas con hongos micorrícico arbusculares dentro de un bosque tropical seco

2015 ◽  
Vol 21 (3) ◽  
Author(s):  
Ramón Zulueta-Rodríguez ◽  
Luis G. Hernandez-Montiel ◽  
Bernardo Murillo-Amador ◽  
Miguel V. Córdoba-Matson ◽  
Liliana Lara ◽  
...  
Keyword(s):  
Mycorrhizal Fungi ◽  
Carica Papaya ◽  
Seedling Survival ◽  
Critical Role ◽  
Tropical Dry Forest ◽  
Arbuscular Mycorrhizal ◽  
Forest Tree ◽  
Dry Forest ◽  
Anthropogenic Pressures ◽  
Growth And Survival

Jacaratia mexicana is not only an endemic and typical tropical dry forest tree of Mexico, it is considered as a direct ancestor of the papayo (Carica papaya). Locally it is mainly used in traditional medicine, for human food or for feeding backyard animals (forage plant), but its use value is very restricted or even unknown. Nevertheless, various abiotic and anthropogenic pressures in its Mexican habitat are causing populations of this tree to decline alarmingly. Arbuscular mycorrhizal fungi (AMF) are microorganisms that have an important role for the regeneration of tree species by increasing their ability to absorb water and nutrients. The aim of this study was to determine the effect of AMF on growth and survival of seedlings of J.mexicana transplanted within a fragmented area of the remaining dry forest located in the central portion of the state of Veracruz. We measured height, stem diameter, number of leaves, percent seedling survival and mycorrhizal colonization. Results showed increases in all growth-related variables when seedlings were inoculated with AMF. The results suggest that micosymbionts can play a critical role for the regeneration of J.mexicana and possibly other species of tree within the dry forest, especially helping this endemic species that is currently surviving in a fragmented environment under unfavorable conditions of low availability of water and nutrients.Supervivencia y crecimiento de plántulas de Jacaratia mexicana inoculadas con hongos micorrícico arbusculares dentro de un bosque tropical secoJacaratia mexicana no es solo un árbol endémico y típico de los bosques tropicales secos de México, sino que se le considera como ancestro evolutivo del papayo (Carica papaya). Se le aprecia en la medicina tradicional, para alimentación del ser humano o cría de animales de traspatio (planta forrajera), pero su valor de uso es muy restringido o incluso desconocido. Sin embargo, presiones abióticas y antropogénicas de su hábitat natural están causando una alarmante reducción de las poblaciones naturales de esta Caricaceae. Los hongos micorrízicos arbusculares (HMA) son microorganismos que juegan un papel importante en la regeneración de especies debido al aumento de su capacidad para absorber agua y nutrientes. El objetivo de este estudio fue determinar el efecto de los HMA sobre el crecimiento y supervivencia de plántulas de J. mexicana trasplantadas dentro de un área fragmentada del bosque tropical seco ubicado en la parte central del estado de Veracruz. Se determinó en este estudio la altura, diámetro, número de hojas, porcentaje de supervivencia y colonización micorrízica. Los resultados muestran incrementos en todas las variables relacionadas con el crecimiento cuando las plántulas fueron inoculadas con HMA. Los resultados sugieren que estos micosimbiontes pueden desempeñar un papel fundamental para el establecimiento de árboles como J. mexicana y posiblemente de otros componentes dentro del bosque tropical seco, los cuales actualmente sobreviven en un entorno fragmentado y bajo condiciones desfavorables de baja disponibilidad de agua y nutrientes.

Mating Systems of Three Tropical Dry Forest Tree Species1

Biotropica ◽  
1998 ◽  
Vol 30 (4) ◽  
pp. 587-594 ◽  
Author(s):  
Tim James ◽  
Sunitha Vege ◽  
Preston Aldrich ◽  
J. L. Hamrick
Keyword(s):  
Mating Systems ◽  
Tropical Dry Forest ◽  
Forest Tree ◽  
Dry Forest

scholarly journals Source water, phenology and growth of two tropical dry forest tree species growing on shallow karst soils

Trees ◽  
2013 ◽  
Vol 27 (5) ◽  
pp. 1297-1307 ◽  
Author(s):  
Héctor Estrada-Medina ◽  
Louis S. Santiago ◽  
Robert C. Graham ◽  
Michael F. Allen ◽  
Juan José Jiménez-Osornio
Keyword(s):  
Tree Species ◽  
Tropical Dry Forest ◽  
Forest Tree ◽  
Dry Forest ◽  
Source Water ◽  
Forest Tree Species ◽  
Karst Soils
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