Meet the editor

Dr. Levente Hufnagel is an associate professor and the head of the Research Institute of Multidisciplinary Ecotheology, John Wesley Theological College, Budapest, Hungary. He works on ecology, biogeography, ecological research methodology, and sustainability and has more than twenty years of experience leading Hungarian academic institutions. He has taught and supervised Ph.D., MSc, and BSc students from various social

and cultural backgrounds. He has published more than 240 scientific publications (on both aquatic and terrestrial ecological aspects of plants, animals, and microbes at the community as well as population levels) and has more than 1000 independent citations. As a participant in several big ecological research and development projects, Dr. Hufnagel has significant experience in multidisciplinary collaborations (with more than 200 coauthors in different publications). He is editor-in-chief of an international scientific journal. Dr. Hufnagel graduated from Eötvös Lorand University, Budapest, Hungary, with a master's degree in Ecology and Evolutionary Biology and a Ph.D. in Hydrobiology. He also has a Ph.D. in Agricultural Science from Szent István University as well as other degrees from the Corvinus University of Budapest and Adventist Theological College.

Contents

**Section 1**

**Preface XI**

Natural History and Ecosystems **1**

**Chapter 1 3**

**Chapter 2 15**

**Chapter 3 41**

**Chapter 4 59**

**Chapter 5 95**

**Chapter 6 115**

*by Joaquín Sosa-Ramírez, Vicente Díaz-Núñez and Diego R. Pérez-Salicrup*

Tropical Subterranean Ecosystems in Mexico, Guatemala and Belize: A Review of Aquatic Biodiversity and Their Ecological Aspects *by Luis M. Mejía-Ortíz, Peter Sprouse, Juan C. Tejeda-Mazariegos,* 

*Jair Valladarez, Oscar Frausto-Martínez, Alejandro L. Collantes-Chavez-Costa,* 

A Natural History of Floating *Sargassum* Species (Sargasso) from Mexico *by José Luis Godínez-Ortega, Juan V. Cuatlán-Cortés, Juan M. López-Bautista* 

The Endangered Species *Dioon edule* in the Sierra Madre Oriental in San

Rediscovering Kemp's Ridley Sea Turtle (*Lepidochelys kempii*): Molecular

Introductory Chapter: Biodiversity of Mexico

Ecology of Plant Communities in Central Mexico

*Guillermo Ruíz-Cancino and German Yáñez*

Luis Potosí: Demography and Genetic Diversity

*César Paúl Ley-Quiñónez, A. Alonso Aguirre and Alan Alfredo Zavala-Norzagaray*

*by Gabriel Rubio-Méndez, Alberto Prado, Jacqueline C. Bede, José Arturo De-Nova, Joel Flores, Juan Antonio Reyes-Agüero* 

*by Miguel Angel Reyes-López, Fátima Yedith Camacho-Sánchez, Catherine E. Hart, Valeria Leal-Sepúlveda, Kevin Alan Zavala-Félix,* 

*and Brigitta I. van Tussenbroek*

*and Laura Yáñez-Espinosa*

Analysis and Threats

*by Levente Hufnagel and Ferenc Mics*
