Results 81 to 90 of about 74,333 (290)

Intraguild interactions shape vocal output and diel activity patterns in sympatric forest owls

open access: yesOikos, EarlyView.
Competition and intraguild predation among sympatric predators may force smaller, subordinate predators to reduce interactions with larger, dominant species via restricted spatial or temporal activity (acquiescence hypothesis). Simultaneously, dominant predators may actively exclude subordinate competitors through frequent vocal and physical aggression
S. Sangeeth Sailas   +3 more
wiley   +1 more source

Combining PCA and DCT for Improved Passive Seismic Data Compression

open access: yesIEEE Access
The seismic surveys conducted by the oil and gas sector result in very large datasets, often exceeding terabytes of data, leading to high costs and technical challenges regarding storage and transmission of such large quantities of data.
Matheus Wagner   +3 more
doaj   +1 more source

Platão e o pensamento grego

open access: yesTrans/Form/Ação, 1982
O Pensamento de Platão tem o encanto das estátuas de Dédalo: esvai-se pelos meandros do discurso, tão logo se pretenda travar com ele uma relação de domínio.
Francisco Benjamin de Souza Netto
doaj   +1 more source

Two centuries of Begonia exploration in the Philippines: Progress and challenges associated with a megadiverse genus in the Global South

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Megadiverse genera represent the highest concentration of plant diversity, but these plants are also located primarily in countries in the Global South where huge gaps in botanical knowledge remain. This study summarized two centuries of Begonia collection records in the Philippines to show how historical events coincide with collection and taxonomic ...
Mark Angelo C. Bucay   +5 more
wiley   +1 more source

Where are the edges of a protected area? Political dispossession in Machu Picchu, Peru

open access: yesConservation & Society, 2011
This report draws on fieldwork done in Machu Picchu, Peru in order to critique the Wittemyer et al. (2008) study on population growth around protected areas. I disagree with the study′s emphasis on reducing people′s motives to economic drives alone.
Pellegrino A Luciano
doaj   +1 more source

Super‐Electron‐Donor Polymers: From Monomer Design to Redox Functionality

open access: yesSmall, EarlyView.
2,2'‐Bipyridinylidenes are known for their “super‐electron‐donor” properties and have therefore been used beyond the field of organic synthesis. Their two‐electron redox process at a low potential of 1.8 V vs. Li/Li+ makes them attractive negative p‐type electrode‐active materials.
Luisa Rzesny   +9 more
wiley   +1 more source

Maintaining the relevance of international journalism – BBC’s Peter Horrocks POLIS Perugia Speech

open access: yes, 2011
This is the text of the speech given by Peter Horrocks, the BBC’s Director of Global News, as the POLIS keynote speech at the International Journalism Festival in Perugia on April 14th.
Horrocks, Peter
core   +1 more source

Biology, ecology, and conservation of the Italian hare Lepus corsicanus: a review

open access: yesWildlife Biology, EarlyView.
The Italian hare Lepus corsicanus, an endemic lagomorph of Italy, serves as a critical case study in evolutionary biology and conservation. Once taxonomically debated, modern genetic and morphological analyses confirm its status as a distinct Pleistocene lineage restricted to the central‐southern Italian Peninsula and Sicily.
Pierangelo Freschi, Valter Trocchi
wiley   +1 more source

Reporting the riots – Paul Lewis at Polis LSE [PDF]

open access: yes, 2011
Burning buildings, wrecked cars, raided shops, youths in hoodies wreaking havoc, and five deaths. These are the lasting images of the London Riots that went on virtually unchecked for four consecutive nights in August 2011, leaving Britain’s leaders and ...
Malmer, Faith
core   +1 more source

Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties

open access: yesJournal of Animal Ecology, EarlyView.
Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea   +15 more
wiley   +1 more source

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