Results 31 to 40 of about 44,287 (185)

A new phylogeny of Anastrepha (Diptera: Tephritidae) based on nuclear loci obtained by phylogenomic methods

open access: yesSystematic Entomology, Volume 51, Issue 1, January‐March 2026.
We present an extensive phylogenetic analysis, based on 293 nuclear loci and 728 individuals representing 237 species of Anastrepha, the largest and most economically important New World genus of Tephritidae. The analysis strongly supports the monophyly of most Anastrepha species groups, also revealing previously unknown relationships among species and
Allen L. Norrbom   +19 more
wiley   +1 more source

Length–Weight and Condition Factor of 14 Elasmobranch Species Caught as Bycatch by Artisanal Shrimp Trawls in a Coastal Lagoon System From Northwest Mexico

open access: yesJournal of Applied Ichthyology, Volume 2026, Issue 1, 2026.
The lack of biometric data on chondrichthyan species has impeded the implementation of management strategies essential for the conservation of sharks and rays captured using different fishing gears in coastal ecosystems. This study aims to assess morphometric relationships (length–weight [LW], length–dorsal length [DL], and length–disc width [DW]) and ...
Adrián Felipe González-Acosta   +6 more
wiley   +1 more source

Structure and genetic diversity in wild and cultivated populations of Zapote mamey (Pouteria sapota, Sapotaceae) from southeastern Mexico: its putative domestication center [PDF]

open access: yes, 2019
Tropical fruit trees are an important component of the human diet; however, little is known about their genetic diversity levels. Zapote mamey (Pouteria sapota) is a tree native to southeastern Mexico and Central America, and Mexico is the leading ...
Arias, Renee S.   +5 more
core   +1 more source

Diagnostic Performance of Rose Bengal, Competitive ELISA, and Native Hapten (NH) Assays in S19 Mass‐Vaccinated Cattle in an Endemic Brucellosis Environment

open access: yesTransboundary and Emerging Diseases, Volume 2026, Issue 1, 2026.
Controlling bovine brucellosis requires reliable diagnostics and effective vaccination strategies. We evaluated the performance of three serological assays—the rose bengal test (RBT), competitive ELISA (cELISA), and agar gel immunodiffusion (AGID) with native hapten (NH)+lipopolysaccharide (LPS) antigen—following Brucella abortus S19 vaccination under ...
Wilson J. Bonilla-Machado   +11 more
wiley   +1 more source

Spatial Representativeness of MexFlux as a Regional FLUXNET Network

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 12, December 2025.
Abstract Environmental observatory networks are fundamental in advancing scientific understanding of biogeochemical processes. FLUXNET is a global network of regional eddy covariance networks that measure ecosystem‐scale exchanges of greenhouse gases (e.g., CO2, CH4, H2O) and energy between the biosphere and the atmosphere.
Rodrigo Vargas   +21 more
wiley   +1 more source

The use of ecosystem-based adaptation practices by smallholder farmers in Central America [PDF]

open access: yes, 2017
There is growing interest in promoting the use of Ecosystem-based Adaptation (EbA) practices to help smallholder farmers adapt to climate change, however there is limited information on how commonly these practices are used by smallholder farmers and ...
Avelino, Jacques   +7 more
core   +1 more source

Use of historical data improves early selection in a public rice breeding program

open access: yesCrop Science, Volume 65, Issue 6, November/December 2025.
Abstract Increasing selection accuracy for parental lines in the early stages of a breeding program can significantly shorten the breeding cycle and accelerate genetic gain. Public breeding programs have limited resources, which in many cases implies not having enough funds for genomic selection.
Sheila Scheffel   +5 more
wiley   +1 more source

Parámetros genéticos del crecimiento y la reproducción en ganado cebú

open access: yesRevista de Medicina Veterinaria, 2009
Con el propósito de conocer las correlaciones genéticas entre los rasgos de crecimiento en toros y las características reproductivas en vacas cebú de Cuba, se utilizaron 9490 registros de toros que terminaron la prueba de comportamiento en pastoreo, a ...
Mario Pino Pérez de Utrera   +2 more
doaj   +1 more source

Mapeo de la influencia de los actores sociales de diferente nivel para Centroamérica: cambio climático y agricultura [PDF]

open access: yes, 2016
Los estudios del poder e influencia permiten identificar quién o quiénes son los actores cuyas ideas e intereses prevalecen en la toma de decisiones. Además, indican cómo se entiende y se posiciona en la agenda una problemática determinada y la forma en ...
Castro Colina, Libertad   +3 more
core  

Problemática económica, social y ambiental de la Reserva de Biosfera Bosawás (2009-2013) [PDF]

open access: yes, 2014
El ensayo pretende determinar los principales problemas económicos, sociales y ambientales de la reserva de biosfera Bosawás. Abordando sus causas, deficiencia y afectaciones que evitan potencializar económicamente y de forma sostenible bosawás.
Avellan Castellón, Jessica Rebeca   +2 more
core   +2 more sources

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