Results 51 to 60 of about 952,973 (212)

Insights from equitable governance assessments in conservation areas around the world

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Global policy commitments to ensure that protected and conserved areas (PCAs) are equitably governed have increased interest in empirically assessing and analyzing social equity. Although numerous assessments have been conducted in individual PCAs, there is limited empirical insight into equity as a multidimensional concept beyond the site ...
Naira Dehmel   +28 more
wiley   +1 more source

Del mecanicismo a la complejidad en la biología

open access: yesRevista de Biología Tropical, 2008
A través de la historia, los organismos vivos han sido estudiados desde diferentes puntos de vista. Presento tres etapas, la primera totalmente ligada al ambiente que rodea al ser humano, la segunda que se basa en las leyes de la química y la física, y ...
Libia Herrero Uribe
doaj  

Valor nutritivo de alimentos energéticos para a tilápia-do-nilo

open access: yesBoletim do Instituto de Pesca, 2016
O objetivo do presente trabalho foi determinar os coeficientes de digestibilidade aparente (CDA) da matéria seca (CDAms), energia bruta (CDAeb), proteí­­na bruta (CDApb), aminoácidos (CDAaa) e fósforo (CDAp) dos alimentos energéticos milho e farelos de ...
Rafael Lopes da SILVA   +5 more
doaj   +1 more source

Los organismos incrustantes de las costas argentinas [PDF]

open access: yes, 1972
Se ha estudiado la fijación de flora y fauna marinas sobre Ulva lactuca. Se eligieron dos zonas de trabajo, dentro y fuera del puerto de Mar del Plata, a fin de determinar cuáles son los factores que condicionan los fenómenos de epibiosis.
Piriz, María Luz
core  

Survival, rarity, and extinction in tropical stony corals

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Many reef‐building tropical corals are becoming rare. We considered the meaning of rarity in corals and highlighted taxa that have reached low abundances in the last few decades. The difficulties of quantifying rarity in the marine environment arise from the sheer scale and 3‐dimensional nature of the biome and the inherent challenges therein ...
Bryan Wilson, Peter J. Edmunds
wiley   +1 more source

Organismos y Teleología en la Critica del Juicio de I. kant

open access: yesRevista Filosofía UIS
El autor aborda el problema de los organismos, entendidos estos como entidades materiales Que se extienden en el espacio y en el tiempo, regidos por leyes de atracción, repulsión y leyes mecánicas que dominan el movimiento.
Alejandro Rosas
doaj   +2 more sources

Como controlar pragas e doenças em sistemas agroecológicos? [PDF]

open access: yes, 2017
Em geral a primeira pergunta que os técnicos e agricultores convencionais fazem em relação aos sistemas de produção agroecológicos é ?que produto vocês usam para controlar as pragas e doenças??.
BORSATO, A. V., FEIDEN, A.
core  

The frequency and importance of polyploidy in tropical rainforest tree radiations

open access: yesNew Phytologist, Volume 249, Issue 4, Page 2103-2114, February 2026.
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Rowan J. Schley   +9 more
wiley   +1 more source

Artificial wrecks: Unwanted consequences of the deliberate sinking of ships for recreational diving

open access: yesEcología Austral
Artificial reefs are submerged human-made objects. In particular, the artificial wrecks are intentionally submerged obsolete ships. Once deployed, these wrecks are rapidly colonized by diverse benthic communities.
Karen L. Castro   +4 more
doaj   +1 more source

Structure, biogenesis and nutricional dependence of Paxillus ammoniavirescens sclerotia (Boletales, Paxillaceae)

open access: yesAnales del Jardín Botánico de Madrid, 2017
The objective of this work was to study the structure, composition, and biogenesis of Paxillus ammoniavirescens sclerotia, as well as their possible use as inoculum for birch mycorrhizae.
Elena Fernández-Miranda Cagigal   +1 more
doaj   +1 more source

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