Results 11 to 20 of about 61,140,095 (227)
High Densities of Large Herbivores Rapidly Disrupt Ecosystem Integrity. [PDF]
Glob Chang BiolHuman‐driven increases in large herbivore populations are emerging as a widespread global change pressure on terrestrial ecosystems. Using the largest hectare‐scale herbivore density manipulation experiment conducted to date, we show that high deer densities rapidly disrupt ecosystem integrity across multiple dimensions of biodiversity and ecosystem ...
Isla J +38 more
europepmc +2 more sources
Emergence, spread, and impact of high-pathogenicity avian influenza H5 in wild birds and mammals of South America and Antarctica. [PDF]
Conserv BiolAbstract The currently circulating high‐pathogenicity avian influenza (HPAI) virus of the subtype H5 causes variable illness and death in wild and domestic birds and mammals, as well as in humans. This virus evolved from the Goose/Guangdong lineage of the HPAI H5 virus, which emerged in commercial poultry in China in 1996, spilled over into wild birds,
Kuiken T +9 more
europepmc +2 more sources
Review of ecological valuation and equivalency analysis methods for assessing temperate nearshore submerged aquatic vegetation. [PDF]
Conserv BiolAbstract Nearshore seagrass, kelp, and other macroalgae beds (submerged aquatic vegetation [SAV]) are productive and important ecosystems. Mitigating anthropogenic impacts on these habitats requires tools to quantify their ecological value and the debits and credits of impact and mitigation.
Pausch RE +10 more
europepmc +2 more sources
The need for carbon finance schemes to tackle overexploitation of tropical forest wildlife. [PDF]
Conserv BiolAbstract Defaunation of tropical forests, particularly from unsustainable hunting, has diminished populations of key seed dispersers for many tree species, driving shifts in forest community composition toward small‐fruited or wind‐dispersed trees with low wood density. Such shifts can reduce aboveground biomass, prompting calls for overexploitation to
Milson CE +3 more
europepmc +2 more sources
Los impactos ambientales de la ciudad de baja densidad en relación con los de la ciudad compacta
Biblio 3w: revista bibliográfica de geografía y ciencias sociales, 2012 In our paper we analyse the scientific bibliography on the environmental impacts of low density cities, in front of the results in the compact cities. We study some aspects such as land, water and energy consumption, transportation, green house gases emissions, etc.
Moliní Fernández, Fernando +1 more
openaire +3 more sources
Brasileiro gosta de "muvuca"?: impacto da densidade humana no comportamento de compra [PDF]
Revista de Administração de Empresas, 2012 Este estudo investigou como as variações de densidade humana nas lojas afetam a percepção de crowding e a satisfação dos consumidores. Por meio de dois experimentos, testou-se como a relação entre a densidade e as respostas dos consumidores é moderada pelas variáveis: familiaridade, habilidade de avaliar a estética de uma loja e nível de renda dos ...
Brandão, Marcelo Moll, Parente, Juracy
openaire +4 more sources
Fatores influentes na densidade mamográfica e seu impacto no Câncer de mama
Brazilian Journal of Health Review, 2023 A mama é composta por tecido adiposo, tecido fibroso de sustentação e tecido glandular associados a vasos sanguíneos, linfáticos e nervos. Um fator de risco para o surgimento do câncer de mama é o aumento na densidade mamográfica no tecido mamário, a densidade mamográfica corresponde à quantidade de tecido fibroglandular nas mamas, apresentando-se como
Nayani Gomes de Lira Soares +4 more
openaire +1 more source
Impacto de la dieta mediterránea sobre las lipoproteínas de alta densidad [PDF]
Revista chilena de cardiología, 2017 Los niveles, la composición lipídica y proteica y las propiedades funcionales de las li-poproteínas de alta densidad (HDL) determinan las funciones biológicas de esta fracción lipoproteica y su papel protector contra el desarrollo de enfermedad cardiovascular.
Echeverría, Guadalupe, Rigotti, Attilio
openaire +2 more sources
Tecnología y Ciencia, 2023 En los últimos años en el departamento de Potosí, con extensión territorial 118.217 Km2 se observa un significativo patrón de cambios en las prácticas de uso de suelo, lo que ha provocado un marcado desequilibrio en el desarrollo sostenible de los ...
Sandra Marlene Subieta Aracena +1 more
doaj +1 more source
Boletín de la Sociedad Argentina de Botánica, 2023 Introducción y objetivos: Acacia melanoxylon (acacia australiana) es una especie exótica invasora que se encuentra en expansión sobre relictos de comunidades nativas de la Reserva Natural Privada Paititi (Sistema de Tandilia, Argentina).
Silvia Clarisa Zaninovich +4 more
doaj +3 more sources