Results 61 to 70 of about 7,105 (252)

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

Environmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão, Igor Romeiro dos Santos, Jerônimo Raimundo de Oliveira Neto, Flávio Olimpio Sanches Neto, Felipe Cirqueira Dias, Jéssyca Moreira Morais, Lorranny Pereira de Assis Valadares, Naiara Raica Lopes de Oliveira, Mirelle Garcia Silva Bailão, Luiz Carlos da Cunha, Valter Henrique Carvalho‐Silva, Thiago Lopes Rocha, Elisa Flávia Luiz Cardoso Bailão   +12 more
wiley   +1 more source

Methane emission from tropical savanna Trachypogon sp. grasses [PDF]

Atmospheric Chemistry and Physics, 2006
Methane flux measurements from the soil-grass system were made during the wet season in unperturbed plots and plots where standing dry and green Trachypogon sp. grasses were clipped to just above the soil surface. Results support the surprising discovery
E. Sanhueza, L. Donoso
doaj  

Hominin dispersals: causes, conditions, and outcomes Dispersions des hominines : causes, conditions et issues

Journal of the Royal Anthropological Institute, EarlyView.
The ‘Out of Africa’ model that has dominated palaeoanthropology for nearly three decades was originally based on five elements: a recent ancestry to human populations; an African origin for the ancestral population; limited or no gene flow among archaic hominins and no admixture between modern humans and Neanderthals; a marked difference between the ...
Robert A. Foley, Marta Mirazón Lahr
wiley   +1 more source

Genomic Investigations Unveil the Genetic Underpinnings of Environmental Adaptation in African Goat Populations

Integrative Zoology, EarlyView.
This study integrates genomics and landscape genetics to analyze African goat environmental adaptation. Analyzing 1591 samples, it finds population structure differentiates geographically into four groups, with gene flow between wild Yura goats and North Africans.
Weifeng Peng, Yihua Wang, Yiyuan Zhang, Lei Gao, Lili Wu, Shuping Wang, Yiyang Gao, Wanlu Shi, Kaixin Lu, Rong Deng, Junting Li, Jing Han, Xiaohui Lu, Yujie Liu, Xiaojiao Tang, Yunxia Zhang, Guoyin Li, Li Huang, Mingsheng Yang, Xiaoyan Li   +19 more
wiley   +1 more source

Tree seed dispersal modes affect forest resilience along savanna-forest boundaries

Environmental Research Letters
The effects of global changes on tropical forests and savannas are manifested primarily at their boundaries. The dynamics at these forest-savanna boundaries depend on their shapes, which influence the spread of fires through the savanna landscape.
Max van der Ree, Gerard T Barkema, Arie Staal   +2 more
doaj   +1 more source

Canopy color indices for estimating gross primary production: insights from a savanna ecosystem in the Dry-Hot Valley of Southwest China

Frontiers in Forests and Global Change
IntroductionThe deployment of digital cameras on flux towers offers a practical approach to exploring how seasonal canopy photosynthesis is related to canopy color indices (CCIs).
Ruiwu Zhou, Qinghai Song, Qinghai Song, Yanqiang Jin, Guojing Wen, Xuehai Fei, Yiping Zhang   +6 more
doaj   +1 more source

Putting Rodents at the Center of One Health Programs: A Narrative Synthesis

Integrative Zoology, EarlyView.
Rodents link human, animal, and environmental health across diverse ecosystems. Rodent diversity underpins both zoonotic disease risk and ecosystem function. Environmental change reshapes rodent communities and spillover dynamics. Rodents act as reservoirs, amplifiers, and sentinels of emerging pathogens.
Steven R. Belmain
wiley   +1 more source

Digital behaviour change ecosystems for sustainable innovation

Discover Sustainability
This paper presents a systematic review of the literature on digital behaviour change ecosystems (DBCE) in the context of sustainable innovation. The concept of digital behaviour change ecosystem is gaining increasing attention across multiple domains ...
Kingsley Ofosu-Ampong, Edward Martey, Anthony Renner-Micah   +2 more
doaj   +1 more source

Aligning Transnational due Diligence: The EU Deforestation Regulation and Brazil's Fragmented Beef Governance

Global Policy, EarlyView.
ABSTRACT Transnational due diligence regulations, such as the European Union Regulation on Deforestation‐Free Products (EUDR), are reshaping sustainability governance by transforming voluntary norms into binding global rules. Yet, their effectiveness depends on how well they align with domestic governance systems and on the power asymmetries that ...
John James Loomis, Khalid Nadvi, José Antônio Puppim de Oliveira   +2 more
wiley   +1 more source

Amazonian savannas are an integral part of Brazil’s Amazon “biome”: implications for environmental policies

Discover Conservation
Conservation policies in Brazil differ between the “biomes” into which the country has divided its territory since 2004. The Amazon biome is predominantly tropical forest but also includes unique savanna ecosystems, while the Cerrado biome is composed of
William Douglas Carvalho, Salustiano V. Costa-Neto, Fernando Cesar Paiva Dagosta, Philip M. Fearnside, Renato Richard Hilário, Hernani Fernandes Magalhães de Oliveira, Cláudia Regina da Silva, José Julio de Toledo, Bruna Silva Xavier, Karen Mustin   +9 more
doaj   +1 more source