Search Results - "Dirzo, R."

The deadly route to collapse and the uncertain fate of Brazilian rupestrian grasslands by Fernandes, G. Wilson, Barbosa, N. P. U., Alberton, B., Barbieri, A., Dirzo, R., Goulart, F., Guerra, T. J., Morellato, L. P. C., Solar, R. R. C.

“…Rupestrian grasslands are biodiverse, evolutionary old vegetation complexes that harbor more than 5000 species of vascular plants and one of the highest levels…”
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Niche partitioning among and within sympatric tropical seabirds revealed by stable isotope analysis by Young, Hillary S., McCauley, Douglas J., Dirzo, Rodolfo, Dunbar, Robert B., Shaffer, Scott A.

“…The low productivity and unpredictable nature of resources in tropical waters would appear to make resource partitioning among predators difficult. Yet, stable…”
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Biodiversity science evolves by Dirzo, Rodolfo, Loreau, Michel

“…Despite the efforts to ensure biodiversity conservation, the planet's biodiversity is still threatened by human activities. This week, DIVERSITAS, the…”
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Richness and Abundance of Ichneumonidae in a Fragmented Tropical Rain Forest by Ruiz-Guerra, B, Hanson, P, Guevara, R, Dirzo, R

“…Because of the magnitude of land use currently occurring in tropical regions, the local loss of animal species due to habitat fragmentation has been widely…”
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Simulated seed predation reveals a variety of germination responses of neotropical rain forest species by Vallejo-Marín, Mario, Domínguez, César A, Dirzo, Rodolfo

“…Seed predation, an omnipresent phenomenon in tropical rain forests, is an important determinant of plant recruitment and forest regeneration. Although seed…”
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evolution of ecology in Mexico: facing challenges and preparing for the future by Martínez, ML, Manson, RH, Balvanera, P., Dirzo, R., Soberón, J., García-Barrios, L., Martínez-Ramos, M., Moreno-Casasola, P., Rosenzweig, L., Sarukhán, J.

“…We review and analyze the historical development and challenges facing ecology as a science in Mexico, a country with limited financial and human (one…”
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Morphological variation in the flowers of Jacaratia mexicana A. DC. (Caricaceae), a subdioecious tree by Aguirre, A., Vallejo-Marín, M., Piedra-Malagón, E. M., Cruz-Ortega, R., Dirzo, R.

“…The Caricaceae is a small family of tropical trees and herbs in which most species are dioecious. In the present study, we extend our previous work on dioecy…”
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Rates of deforestation in Los Tuxtlas, a Neotropical area in southeast Mexico by Dirzo, R. (Centro de Ecologia, UNAM, Mexico, D.F.), Garcia, M.C

“…On the basis of ground surveys, aerial photographs (for 1967 and 1976), and satellite imagery (for 1986), maps of rain forest distribution were developed for…”
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EVOLUTIONARY ECOLOGY OF DATURA STRAMONIUM L. IN CENTRAL MEXICO: NATURAL SELECTION FOR RESISTANCE TO HERBIVOROUS INSECTS by Núñez‐Farfán, Juan, Dirzo, Rodolfo

“…It has been assumed that herbivores constitute a selective agent for the evolution of plant resistance. However, few studies have tested this hypothesis. In…”
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role of an avian nectar robber and of hummingbird pollinators in the reproduction of two plant species by Arizmendi, M.C, Dominguez, C.A, Dirzo, R

“…1. Flower nectar robbers which extract flower rewards to pollinators but do not pollinate, may reduce the fitness of the plant. In this study we combined field…”
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Contemporary neotropical defaunation and forest structure, function, and diversity--a sequel to John Terborgh by Dirzo, R, Miranda, A

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Ecological Science and the Human Predicament by Bazzaz, Fakhri, Ceballos, Gerardo, Davis, Margaret, Dirzo, Rodolfo, Ehrlich, Paul R., Eisner, Thomas, Levin, Simon, Lawton, John H., Lubchenco, Jane, Matson, Pamela A., Mooney, Harold A., Raven, Peter H., Roughgarden, Joan E., Sarukhan, Jose, Tilman, G. David, Vitousek, Peter, Walker, Brian, Wall, Diana H., Wilson, Edward O., Woodwell, George M.

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Deforestation of seasonally dry tropical forest: a national and local analysis in Mexico by Trejo, Irma, Dirzo, Rodolfo

“…Seasonally dry tropical forests in the neotropics reach their northernmost distribution in Mexico. This vegetation type has both a high diversity and endemism,…”
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Within- and among-year variation in the levels of herbivory on the foliage of trees from a Mexican tropical deciduous forest by Filip, V. (Universidad Nacional Autonoma de Mexico, Mexico, D.F., Mexico.), Dirzo, R, Maass, J.M, Sarukhan, J

“…Discrete (i.e., one-time) measurements of the levels of herbivore damage on the foliage of trees (16 species) were made for three consecutive years in the…”
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GLOBAL STATE OF BIODIVERSITY AND LOSS by Dirzo, Rodolfo, Raven, Peter H

“…Biodiversity, a central component of Earth's life support systems, is directly relevant to human societies. We examine the dimensions and nature of the Earth's…”
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Floristic diversity of Mexican seasonally dry tropical forests by Trejo, Irma, Dirzo, Rodolfo

“…Studies of the variation in tropical plant species diversity and itsrelationship with environmental factors are largely based on research intropical moist/wet…”
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Effects of fragmentation on pollinator abundance and fruit set of an abundant understory palm in a Mexican tropical forest by Aguirre, Armando, Dirzo, Rodolfo

“…Tropical forest fragmentation affects both biodiversity and plant reproductive success when small, isolated fragments sustain a reduced diversity or abundance…”
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Flower morphometry of Rhizophora mangle (Rhizophoraceae): geographical variation in Mexican populations by Dominguez, C.A, Eguiarte, L.E, Nunez-Farfan, J, Dirzo, R

“…We explored the patterns of intra- and interpopulation variation in flower morphology of the red mangrove, Rhizophora mangle. Twelve populations in Mexico were…”
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effects of gap size and age on the understorey herb community of a tropical Mexican rain forest by Dirzo, R, Horvitz, C.C, Quevedo, H, Lopez, M.A

“…1. The effects of gap age and size on understorey herb communities and their light environments (indirect skylight and direct sunlight estimated from…”
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Biodiversity - Global biodiversity scenarios for the year 2100 by Sala, O E, Chapin, F S, Armesto, J J, Berlow, E, Bloomfield, J, Dirzo, R, Huber-Sanwald, E, Huenneke, L F, Jackson, R B, Kinzig, A, Leemans, R, Lodge, D M, Mooney, H A, Oesterheld, M, Poff, N L, Sykes, Martin, Walker, B H, Walker, M, Wall, D H

“…Scenarios of changes in biodiversity for the year 2100 can now be developed based on scenarios of changes in atmospheric carbon dioxide, climate, vegetation,…”
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