Výsledky vyhledávání - "Andrew J. Abraham"

Akademický článek

Using multiscale lidar to determine variation in canopy structure from African forest elephant trails

Autor: Jenna M. Keany, Patrick Burns, Andrew J. Abraham, Patrick Jantz, Loic Makaga, Sassan Saatchi, Fiona Maisels, Katharine Abernethy, Christopher E. Doughty

Publikováno v: Remote Sensing in Ecology and Conservation, Vol 10, Iss 5, Pp 655-667 (2024)

Abstract Recently classified as a unique species by the IUCN, African forest elephants (Loxodonta cyclotis) are critically endangered due to severe poaching. With limited knowledge about their ecological role due to the dense tropical forests they in

Externí odkaz: https://doaj.org/article/12dfc004bf9c4b44a119023b924b89ff

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Akademický článek

Zoogeochemistry of a protected area: Driven by anthropogenic impacts and animal behavior

Autor: Jonas Trepel, Andrew J. Abraham, Erick J. Lundgren, Kristy M. Ferraro, Camilla Fløjgaard, Lars Haugaard, Peter Sunde, Rasmus Ø. Pedersen, Melanie Tietje, Johannes Kamp, Elizabeth leRoux

Publikováno v: Conservation Science and Practice, Vol 6, Iss 5, Pp n/a-n/a (2024)

Abstract Anthropogenic eutrophication of ecosystems is an important driver of biodiversity loss. Even protected areas (PAs) may be impacted by anthropogenic nutrients, for example, from atmospheric deposition or the provision of supplementary feeding

Externí odkaz: https://doaj.org/article/c6b9b49767224f1590d573434f2eeb89

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Akademický článek

The megabiota are disproportionately important for biosphere functioning

Autor: Brian J. Enquist, Andrew J. Abraham, Michael B. J. Harfoot, Yadvinder Malhi, Christopher E. Doughty

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)

Human-driven losses of megafauna and megaflora may have disproportionate ecological consequences. Here, the authors combine metabolic scaling theory and global simulation models to show that past and continued reduction of megabiota have and will con

Externí odkaz: https://doaj.org/article/a916014519b64745a9203ef69482d194

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Akademický článek

Mapping the Leaf Economic Spectrum across West African Tropical Forests Using UAV-Acquired Hyperspectral Imagery

Autor: Eleanor R. Thomson, Yadvinder Malhi, Harm Bartholomeus, Imma Oliveras, Agne Gvozdevaite, Theresa Peprah, Juha Suomalainen, John Quansah, John Seidu, Christian Adonteng, Andrew J. Abraham, Martin Herold, Stephen Adu-Bredu, Christopher E. Doughty

Publikováno v: Remote Sensing, Vol 10, Iss 10, p 1532 (2018)

The leaf economic spectrum (LES) describes a set of universal trade-offs between leaf mass per area (LMA), leaf nitrogen (N), leaf phosphorus (P) and leaf photosynthesis that influence patterns of primary productivity and nutrient cycling. Many quest

Externí odkaz: https://doaj.org/article/3ebcff11fd934103964906210a682dc8

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Akademický článek

Tropical forests are mainly unstratified especially in Amazonia and regions with lower fertility or higher temperatures

Autor: Christopher E Doughty, Camille Gaillard, Patrick Burns, Jenna M Keany, Andrew J Abraham, Yadvinder Malhi, Jesus Aguirre-Gutierrez, George Koch, Patrick Jantz, Alexander Shenkin, Hao Tang

Publikováno v: Environmental Research: Ecology, Vol 2, Iss 3, p 035002 (2023)

The stratified nature of tropical forest structure had been noted by early explorers, but until recent use of satellite-based LiDAR (GEDI, or Global Ecosystems Dynamics Investigation LiDAR), it was not possible to quantify stratification across all t

Externí odkaz: https://doaj.org/article/745ab5928c044860a89dd47a7b0c2b42

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Allometry of sodium requirements and mineral lick use among herbivorous mammals

Autor: Ethan S. Duvall, Brian M. Griffiths, Marcus Clauss, Andrew J. Abraham

Publikováno v: Duvall, E S, Griffiths, B M, Clauss, M & Abraham, A J 2023, ' Allometry of sodium requirements and mineral lick use among herbivorous mammals ', Oikos . https://doi.org/10.1111/oik.10058

Sodium (Na) plays a critical role in the functioning of terrestrial ecosystems. In Na-poor regions, plant consumers may experience Na deficiency and adapt by seeking supplementary Na resources. This can markedly impact animal behavior, space-use, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daf96a94ca21dfdf5e7c71467248a648
https://www.zora.uzh.ch/id/eprint/233982/

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Understanding anthropogenic impacts on zoogeochemistry is essential for ecological restoration

Autor: Andrew J. Abraham, Ethan Duvall, Kristy Ferraro, Andrea B. Webster, Christopher E. Doughty, Elizabeth le Roux, Diego Ellis‐Soto

Publikováno v: Abraham, A J, Duvall, E, Ferraro, K, Webster, A B, Doughty, C E, le Roux, E & Ellis-Soto, D 2023, ' Understanding anthropogenic impacts on zoogeochemistry is essential for ecological restoration ', Restoration Ecology, vol. 31, no. 3, e13778 . https://doi.org/10.1111/rec.13778

Ecological restoration is critical for climate and biodiversity resilience over the coming century. Today, there is strong evidence that wildlife can significantly influence the distribution and stoichiometry of elements across landscapes, with subse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::271408f1ea7c7b4591cba11de0945517
https://pure.au.dk/portal/da/publications/understanding-anthropogenic-impacts-on-zoogeochemistry-is-essential-for-ecological-restoration(5b4301b0-038c-493f-a326-af24735cfd26).html

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