Results 21 to 30 of about 36,206 (178)

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1345-1356, July 2026.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha   +3 more
wiley   +1 more source

La investigación en economía en España durante los años 90 : una revisión de la literatura [PDF]

open access: yes, 2006
En este trabajo se revisa la literatura sobre la ordenación de los centros de excelencia en economía en función de los artículos publicados en revistas especializadas que cuentan con un procedimiento de evaluación anónima.
Ruiz-Castillo, Javier
core  

Review of "Los viajeros medievales"

open access: yesPhilologia Hispalensis, 2018
Reseña del libro: Maria Serena Mazzi, Los viajeros medievales, serie Papeles del Tiempo, número 35, Boadilla del Monte (Madrid): Machado Grupo de Distribución, 2018, 382 páginas, ISBN: 978-84-7774-162-6.
Antonio Constán-Nava
doaj   +1 more source

Exploring Costa Rica's fungal trends: Insights from digitized specimens

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1256-1274, July 2026.
Fungi are essential to tropical ecosystems but remain largely absent from conservation agendas. By analyzing over 78,000 fungal records from Costa Rica—a globally recognized biodiversity hotspot—this study reveals key patterns in fungal diversity, distribution, and seasonality.
Melissa Mardones   +2 more
wiley   +1 more source

Effects of selective harvest on antler size of white‐tailed deer in Texas, USA

open access: yesWildlife Monographs, Volume 222, Issue 1, June 2026.
We conducted 20 years of experiments on the selective harvest of white‐tailed deer by antler size, judged inferior, in 2 areas of South Texas, USA. Selective harvest increased the phenotypic antler size of older males in one study area but not the other. There was little evidence of evolution resulting from selective harvesting. Abstract There has been
Don A. Draeger   +8 more
wiley   +1 more source

El tiempo de la familia es un recurso escaso: ¿cómo afecta su distribución en el desempeño?

open access: yes, 2013
El estudio mide el impacto de la distribución del tiempo del padre, la madre y los hijos sobre el atraso escolar de estos últimos. Se trabaja con la Encuesta de Uso del Tiempo, aplicada en el Perú en 2010, y con modelos econométricos de corte transversal.
Beltrán, Arlette   +2 more
core   +1 more source

Role of freshwater availability and terrestrial land‐cover change in the distribution of a declining, terrestrial, insectivorous bird

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Insectivorous, Afro‐Palearctic migrant birds provide cross‐border ecosystem services, but many are declining rapidly. The complex life cycle of migrant birds makes their conservation difficult, but understanding where they spend time during the breeding season can help indicate where those actions will be most effective.
Catrin F. Eden   +5 more
wiley   +1 more source

Harnessing social media data to track species range shifts

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Biodiversity monitoring programs and citizen science data remain heavily biased toward the Global North. Especially in megadiverse countries with limited biodiversity records, incorporating social media data can help address existing data gaps.
Shawan Chowdhury   +15 more
wiley   +1 more source

Educacón y democracia: más allá de la escuela y el maestro

open access: yesEducación y Ciudad, 2015
En más de dos siglos de existencia, la distribución y funcionamiento del espacio y el tiempo escolar no han sufrido transformaciones radicales. La rígida separación entre el salón de clase y el patio de recreo; la minuciosa distribución del tiempo para ...
Carlos Ernesto Noguera R.
doaj  

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