Results 51 to 60 of about 241,835 (157)

La influencia de la educación y otras variables relevantes en la decisión de emprender: Dos casos de estudio comparados de estudiantes universitarios de Ciencias Sociales y Jurídicas de España y México

open access: yesEducación XX1, 2019
Los informes del Global Entrepreneurship Monitor indican que la tasa de iniciativa emprendedora española es baja respecto de la de otros países como es el que caso mexicano.
Angélica Beatriz Contreras Cueva   +1 more
doaj   +1 more source

The Dynamic Nature of Nearshore Shark Nurseries in the Northern Gulf of Mexico

open access: yesJournal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim Some habitats serve particularly important functions for wildlife. Identifying and appropriately managing these ‘essential habitats’ is critical, especially for wildlife that have faced severe population declines like sharks. Nursery habitats aid in the survival and development of juvenile sharks, which until recently were not formally ...
Philip Matich   +5 more
wiley   +1 more source

Does any fish scale of a fish have the same number of marks? A case study for two Mugilidae species

open access: yesJournal of Fish Biology, Volume 108, Issue 4, Page 1276-1283, April 2026.
Abstract This study evaluates the difference in growth marks in scales from nine body areas of two Mugilidae species from the Gulf of Mexico: Mugil curema and Mugil cephalus. It addresses whether the different body areas show more (or fewer) marks, and which area(s) would be more useful in fish biology studies relying on mark analysis.
Ebenecer Guerra   +6 more
wiley   +1 more source

Foraminiferal Populations in Laguna Madre, Texas [PDF]

open access: yes, 2010
application/pdfForaminiferal populations in Laguna Madre are large, indicating high organic productivity. The fauna is dominated by Miliolidae, believed to be due to general abundance of sand in the substrate.
Phleger, Fred B.
core   +1 more source

Hábitos alimenticios y dieta invernal de Charadrius melodus (Charadriiformes: Charadriidae) en Boca Ciega, Tamaulipas, México

open access: yesRevista de Biología Tropical, 2013
Charadrius melodus es una especie migratoria en peligro de extinción. Cada año, la Laguna Madre recibe aves migratorias invernales, incluyendo a la especie antes mencionada, sin embargo su estabilidad se encuentra amenazada por el cambio de hábitat ...
Iris Banda-Villanueva   +3 more
doaj  

Hábitos alimenticios y dieta invernal de Charadrius melodus (Charadriiformes: Charadriidae) en Boca Ciega, Tamaulipas, México Food habits and winter diet of Charadrius melodus (Charadriiformes: Charadriidae) in Boca Ciega, Tamaulipas, Mexico

open access: yesRevista de Biología Tropical, 2013
Charadrius melodus es una especie migratoria en peligro de extinción. Cada año, la Laguna Madre recibe aves migratorias invernales, incluyendo a la especie antes mencionada, sin embargo su estabilidad se encuentra amenazada por el cambio de hábitat ...
Iris Banda-Villanueva   +3 more
doaj  

Revisiting the taxonomy and nomenclature of Phyla, a small genus of Verbenaceae

open access: yesNordic Journal of Botany, Volume 2025, Issue 12, December 2025.
Phyla is unique within Verbenaceae due to the presence of malpighiaceous hairs. Its taxonomy has long been marked by difficulties in defining species boundaries. The most recent revision of the genus recognized five species and three varieties. In this study, however, we recognize only two species and no varieties: P.
Pedro Henrique Cardoso   +3 more
wiley   +1 more source

Modeled Inflow Validation & Nutrient Loading Estimation in Two Subwatersheds of the Lower Laguna Madre [PDF]

open access: yes, 2016
University of Texas Rio Grande Valley will characterize nutrient loading rates into the Lower Laguna Madre for subwatersheds by monitoring stream flow and water quality (particularly total nitrogen and phosphorus).
DeYoe, Hudson R.   +2 more
core   +1 more source

Wetland use by Greater White-fronted Geese and spatial overlap with waterfowl conservation priority areas in Mexico

open access: yesAvian Conservation and Ecology, 2022
Greater White-fronted Geese (Anser albifrons frontalis) use both agricultural and wetland habitats throughout winter with changes in use exhibited temporally and in relation to environmental and landscape factors.
Jay A. VonBank   +5 more
doaj  

Evolutionary history of Middle American Rhamdia (Siluriformes: Heptapteridae) inferred from comparative mitogenomic data: Insights on historical biogeography and cave colonization in the group

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 6, Page 1501-1518, November 2025.
Investigating the systematics and biogeography of Neotropical catfishes of the genus Rhamdia refined phylogenetic hypotheses, including deep paraphyly of Rhamdia laticauda, supported northward dispersal catalyzed by emergence of the Panamanian Isthmus and imply that cave colonization is widespread, convergent, and recent, with established cave‐dwelling
Jairo Arroyave   +6 more
wiley   +1 more source

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