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991.
Major shifts in Amazon wildlife populations from recent intensification of floods and drought 下载免费PDF全文
Richard Bodmer Pedro Mayor Miguel Antunez Kimberlyn Chota Tula Fang Pablo Puertas Marlini Pittet Maire Kirkland Mike Walkey Claudia Rios Pedro Perez‐Peña Peter Henderson William Bodmer Andy Bicerra Joseph Zegarra Emma Docherty 《Conservation biology》2018,32(2):333-344
In the western Amazon Basin, recent intensification of river‐level cycles has increased flooding during the wet seasons and decreased precipitation during the dry season. Greater than normal floods occurred in 2009 and in all years from 2011 to 2015 during high‐water seasons, and a drought occurred during the 2010 low‐water season. During these years, we surveyed populations of terrestrial, arboreal, and aquatic wildlife in a seasonally flooded Amazonian forest in the Loreto region of Peru (99,780 km2) to study the effects of intensification of natural climatic fluctuations on wildlife populations and in turn effects on resource use by local people. Shifts in fish and terrestrial mammal populations occurred during consecutive years of high floods and the drought of 2010. As floods intensified, terrestrial mammal populations decreased by 95%. Fish, waterfowl, and otter (Pteronura brasiliensis) abundances increased during years of intensive floods, whereas river dolphin and caiman populations had stable abundances. Arboreal species, including, macaws, game birds, primates, felids, and other arboreal mammals had stable populations and were not affected directly by high floods. The drought of 2010 had the opposite effect: fish, waterfowl, and dolphin populations decreased, and populations of terrestrial and arboreal species remained stable. Ungulates and large rodents are important sources of food and income for local people, and large declines in these animals has shifted resource use of people living in the flooded forests away from hunting to a greater reliance on fish. 相似文献
992.
Tałałaj Izabela Anna Biedka Paweł Bartkowska Izabela 《Environmental Chemistry Letters》2019,17(3):1177-1193
Environmental Chemistry Letters - Landfill leachates from municipal landfills are usually heavily contaminated and thus require treatments before direct discharge into natural waters. Selecting the... 相似文献
993.
Díaz-Mendoza Claudia Mouthon-Bello Javier Pérez-Herrera Natalia Lucia Escobar-Díaz Stephanie María 《Environmental science and pollution research international》2020,27(32):39913-39922
Environmental Science and Pollution Research - Plastics have become strong environmental stressors of coastal marine ecosystems. Their introduction into the marine ecosystem is subjected to... 相似文献
994.
Kirmizakis Panagiotis Doherty Rory Mendonça Carlos A. Costeira Ricardo Allen Chris C. R. Ofterdinger Ulrich S. Kulakov Leonid 《Environmental science and pollution research international》2019,26(10):9981-9991
Environmental Science and Pollution Research - Here, we show the electrical response, bacterial community, and remediation of hydrocarbon-contaminated groundwater from a gasworks site using a... 相似文献
995.
Abdel-Daim Mohamed M. Abushouk Abdelrahman Ibrahim Bungău Simona G. Bin-Jumah May El-kott Attalla F. Shati Ali A. Aleya Lotfi Alkahtani Saad 《Environmental science and pollution research international》2020,27(10):10228-10235
Environmental Science and Pollution Research - Malathion is a potent organophosphate insecticide that inhibits acetylcholinesterase (AChE) enzyme. Our experimental objective was to investigate the... 相似文献
996.
Currently a debate exists about whether the reduced growth of macrophytes with increased nitrogen loading in shallow ecosystems is determined by ecological or physiological factors. To discover whether nitrate in the water is detrimental per se to charophytes, we subjected Chara hispida and Chara vulgaris specimens, collected from two habitats greatly differing in nitrate concentrations (1.5 and 10?mg NO3-N/L, annual means), to a wide nitrate range (0.5–50?mg NO3-N/L) in two experiments (with free-floating specimens using nitrate as the sole N source, and with planted specimens, with other N sources in sediment). Charophytes grew both unplanted and planted in all treatments, and growth reductions occurred at the highest concentration in all cases. Some charophyte responses when faced with nitrate increases were different depending on (i) the species and (ii) population origin. Under the most realistic situation, the growth of both planted C. vulgaris populations was higher than that of C. hispida populations. C. vulgaris specimens from the nitrate-rich waterbody adapted best to the highest nitrate concentrations when they grew floating. Despite charophytes being vital and growing under high-nitrate concentrations in short-term laboratory experiments, such a situation in the environment may eventually not be sustainable, since ecological factors act in the field. 相似文献
997.
Giovanna Moura Calazans Carolina Cristiane Pinto Elizângela Pinheiro da Costa Anna Flávia Perini Sílvia Corrêa Oliveira 《Environmental monitoring and assessment》2018,190(12):726
Surface water quality monitoring networks are usually deployed and rarely re-evaluated with regard to their effectiveness. In this sense, this work sought to evaluate and to guide optimization projects for the water quality monitoring network of the Velhas river basin, using multivariate statistical methods. The cluster, principal components, and factorial analyses, associated with non-parametric tests and the analysis of violation to the standards set recommended by legislation, identified the most relevant water quality parameters and monitoring sites, and evaluated the sampling frequency. Thermotolerant coliforms, total arsenic, and total phosphorus were considered the most relevant parameters for characterization of water quality in the river basin. The monitoring sites BV156, BV141, BV142, BV150, BV137, and BV153 were considered priorities for maintenance of the network. The multivariate statistical analysis showed the importance of a monthly sampling frequency, specifically the parameters considered most important. 相似文献
998.
999.
Delesposte Jamile Eleutério Rangel Luís Alberto Duncan Meiriño Marcelo Jasmim Narcizo Ramon Baptista Alencar Junior André Armando Mendonça de 《The Environmentalist》2021,41(4):501-522
Environment Systems and Decisions - Sustainable innovation has gained prominence in recent years, due to the demands imposed by global competition, social pressures and the needs of consumers and... 相似文献
1000.
Wachowicz-Pyzik Anna Sowiżdżał Anna Pająk Leszek 《Environmental geochemistry and health》2022,44(7):2325-2339
Environmental Geochemistry and Health - The article presents environmental aspects related to the use of geothermal waters of the Lower Jurassic in the area of the Szczecin Trough. The research... 相似文献