Results 11 to 20 of about 2,218 (150)

Entender el extractivismo en regiones fronterizas. Monocultivos y despojo en las fronteras de Costa Rica

Sociedad y Ambiente, 2018
Las regiones fronterizas centroamericanas están marcadas por la presencia de importantes actividades extractivas como la minería, el petróleo y los monocultivos de piña, banano, cítricos y palma africana.
Tania Rodríguez Echavarría, Alexa Obando Campos, Marylaura Acuña Alvarado   +2 more
doaj   +3 more sources

Diversidad de especies de plantas arvenses en tres monocultivos del Bajío, México

Polibotánica, 2022
Las plantas arvenses son fuertes competidoras en los cultivos, por lo que es relevante conocer aspectos de su ecología. El objetivo fue comparar la abundancia, riqueza, diversidad de arvenses presentes en monocultivos de maíz, trigo y sorgo.
Victoria Hernández Hernández, Rafael Guzmán Mendoza   +1 more
doaj   +2 more sources

Monocultivos permanentes y afectación a los derechos bioculturales: tensiones en María la Baja, Montes de María, Colombia [PDF]

Revista de Economia e Sociologia Rural
Resumen La expansión de monocultivos permanentes es un fenómeno que afecta no solo la biodiversidad planetaria y el equilibrio ecosistémico, sino que además pone en riesgo las condiciones de vida de las comunidades cuyos territorios han sido ...
Katleen Marún-Uparela, Rosaura Arrieta-Flórez, Ramón Medina-Arteta, Rafaela Sayas Contreras   +3 more
doaj   +2 more sources

Global effects of forest modification on herpetofauna communities. [PDF]

Conserv Biol, 2023
Abstract As the area covered by human‐modified environments grows, it is increasingly important to understand the responses of communities to the novel habitats created, especially for sensitive and threatened taxa. We aimed to improve understanding of the major evolutionary and ecological processes that shape the assemblage of amphibian and reptile ...
Iglesias-Carrasco M, Medina I, Ord TJ.
europepmc   +2 more sources

Conservation planning on China's borders with Myanmar, Laos, and Vietnam. [PDF]

Conserv Biol, 2021
Abstract Transboundary conservation is playing an increasingly important role in maintaining ecosystem integrity and halting biodiversity loss caused by anthropogenic activities. However, lack of information on species distributions in transboundary regions and understanding of the threats in these areas impairs conservation.
Wang L, Yang B, Bai Y, Lu X, Corlett RT, Tan Y, Chen XY, Zhu J, Liu Y, Quan RC.   +9 more
europepmc   +2 more sources

Tree Diversity Increases Carbon Stocks and Fluxes Above-But Not Belowground in a Tropical Forest Experiment. [PDF]

Glob Chang Biol
We examined the potential of mixed‐species planted forests compared to monospecific forests to act as a nature‐based solution to climate change mitigation through carbon sequestration. By analysing multiple carbon stocks and fluxes over 16 years in the world's oldest tropical tree diversity experiment, we found that planted forests with five tree ...
Schnabel F, Guillemot J, Barry KE, Barry KE, Brunn M, Cesarz S, Eisenhauer N, Gebauer T, Guerrero-Ramirez NR, Handa IT, Madsen C, Mancilla L, Monteza J, Moore T, Oelmann Y, Scherer-Lorenzen M, Schwendenmann L, Wagner A, Wirth C, Potvin C.   +19 more
europepmc   +2 more sources

Monocultivos de dendezeiros, capital transnacional e concentração de terras na Amazônia Paraense

Revista Campo-Território, 2016
A expansão dos monocultivos de dendê na Amazônia Paraense está inserida no contexto das agroestratégias comandadas pelo capital transnacional, as quais são incentivadas por políticas governamentais que estimulam a alocação de grandes investimentos ...
Elielson Pereira da Silva, Sônia Barbosa Magalhães, André Luís Assunção de Farias   +2 more
openaire   +4 more sources

What makes a good pollinator? Abundant and specialised insects with long flight periods transport the most strawberry pollen

Ecological Solutions and Evidence, Volume 4, Issue 3, July–September 2023., 2023
Visitation and pollen data concluded that key pollinators of UK strawberry crops were abundant and had long flight periods (e.g. hoverfies, honeybees, wild bees). Pollinators also used non‐crop flowers, suggesting a need for diversity of resources. Abstract Despite the importance of insect pollination to produce marketable fruits, insect pollination ...
Edith Villa‐Galaviz, Alyssa R. Cirtwill, Rachel Gibson, Thomas Timberlake, Tomas Roslin, Jane Memmott   +5 more
wiley   +1 more source

Ecological and evolutionary effects of crop diversity decrease yield variability

Journal of Ecology, Volume 111, Issue 6, Page 1242-1253, June 2023., 2023
Results highlight the ecological and evolutionary role of plant interactions in crop mixtures, which can affect yield stability, while also reflecting on the importance of climate and resource availability in modifying the diversity‐stability relationship.
Jesús López‐Angulo, Laura Stefan, Nadine Engbersen, Christian Schöb   +3 more
wiley   +1 more source

Plant chemical diversity and its frequency have distinct but complementary effects on insect foraging

Journal of Applied Ecology, Volume 59, Issue 5, Page 1362-1371, May 2022., 2022
Whereas previous work investigates how the amount of chemical diversity in a plant population influences insect ecology, our results indicate that local spatial distribution of diversity is equally important. A key implication of this work is the potential to design cultivar mixtures spatially, at the movement scale of target organisms, to create more ...
Kayleigh C. Hauri, Andrea E. Glassmire, Brendan Randall, Luke N. Zehr, William C. Wetzel   +4 more
wiley   +1 more source