Results 91 to 100 of about 224,204 (252)

Potential distribution and susceptibility of Coffea arabica L. to climate change impacts

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Ecological niche models (ENMs) are vital for understanding the impact of historical factors on ecosystems and predicting future climate change scenarios. These models help assess how environmental shifts affect agricultural species like coffee, which supports millions of people globally.
Yuliana Grisel García‐Martínez   +1 more
wiley   +1 more source

Concepciones alternativas sobre los conceptos de energía, calor y temperatura de los docentes en formación del Instituto Pedagógico en Santiago, Panamá / Alternative conceptions about the concept of energy, heat and temperature in the students from the...

open access: yesActualidades Investigativas en Educación, 2012
El artículo presenta los resultados de una investigación realizada en el año 2009 en el Instituto Pedagógico Superior Juan Demóstenes Arosemena. La metodología utilizada en el estudio es del tipo descriptiva cuantitativa y se utilizó una prueba de ...
Viterbo Rodríguez, Susana Díaz-Higson
doaj   +1 more source

Length-weight relationships of the anchoveta, Cetengraulis mysticetus, in the Gulf of Panama [PDF]

open access: yes, 1965
ENGLISH: Knowledge of the length-frequency distribution and the length-weight relationships of the anchoveta is essential for converting the catch statistics of that species from pounds to numbers of fish. Such conversions are necessary for various types
Bayliff, William H.
core  

Foodways in transition: food plants, diet and local perceptions of change in a Costa Rican Ngäbe community [PDF]

open access: yes, 2016
Background Indigenous populations are undergoing rapid ethnobiological, nutritional and socioeconomic transitions while being increasingly integrated into modernizing societies. To better understand the dynamics of these transitions, this article aims
A Constenla   +62 more
core   +1 more source

Inferring camera trap detection zones for rare species using species‐ and camera‐specific traits: a meta‐level analysis

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Camera trap detection zones are critical for estimating wildlife population sizes, but data scarcity hampers accurate measurement. Through a meta‐level analysis and modeling approach, we show that biological, environmental and camera trap traits can reliably predict detection zones, and that fewer than 25 detection events can yield <15% error when ...
Johannes N. Wiegers   +2 more
wiley   +1 more source

Trade-offs Between Water Transport Capacity and Drought Resistance in Neotropical Canopy Liana and Tree Species [PDF]

open access: yes, 2016
In tropical forest canopies, it is critical for upper shoots to efficiently provide water to leaves for physiological function while safely preventing loss of hydraulic conductivity due to cavitation during periods of soil water deficit or high ...
De Guzman, Mark E.   +3 more
core   +1 more source

Political Stability and Economic Development: Institutional Sclerosis and the Moderating Role of Institutions

open access: yesSustainable Development, EarlyView.
ABSTRACT This study investigates the non‐linear effects of political stability on economic development and explores the moderating role of institutional factors. Drawing on panel data from 162 countries between 2007 and 2022, we employ a system generalised method of moments (system‐GMM) estimator to test the hypothesis that political stability follows ...
Yu Ri Kim   +3 more
wiley   +1 more source

El papel del mar y de las costas en el Panamá pre-hispánico y del periodo del contacto: redes locales y relaciones externas

open access: yesRevista de Historia, 2001
Introducción La privilegiada situación geográfica de Panamá ha servido para otorgarle los epítetos turísticos de "puente del mundo" y "crisol de raza", perogrulladas, por cierto, que no obstante reflejan el hecho de que esta angosta franja de tierra ...
Richard G. Cooke, Luis Alberto Sánchez
doaj  

Primera cita del género Neuroterus Hartig (Hymenoptera, Cynipidae, Cynipini) para América Central, con descripción de tres especies nuevas de Panamá y Costa Rica

open access: yesGraellsia, 2017
Se describen tres nuevas especies del género Neuroterus Hartig, 1840 (Hymenoptera: Cynipidae: Cynipini) de Panamá y Costa Rica: Neuroterus elvisi sp. n., Neuroterus pulchrigalla sp. n. y Neuroterus glandiphilus sp. n..
E. Medianero, J. L. Nieves-Aldrey
doaj   +1 more source

Globalization and Decent Work, Options for Panama [PDF]

open access: yes, 2002
An analysis of economic trends in Panama, including the effects of trade liberalization and poverty on employment and child ...
Egger, Phillip
core   +1 more source

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