Method development: Assigning sex to African clawless otter spraints and assessing stability of faecal androgen and progestagen metabolites post-defaecation

Autor: Marli Burger, Andrea B. Webster, Tshepiso L. Majelantle, Juan Scheun, Andre Ganswindt

Publikováno v: MethodsX, Vol 13, Iss , Pp 102883- (2024)

Monitoring reproductive physiology in wildlife can be a useful tool for assessing population dynamics for conservation and management purposes. Utilizing non-invasive approaches for this, such as quantifying reproductive hormone metabolites from faec

Externí odkaz: https://doaj.org/article/20e4fe91b73b49e29e2a80d0ef1832c3

Optimised ICP-MS quantification method for using animal faeces as a measure of protected area ecosystem health

Autor: Andrea B. Webster, Andre Ganswindt, Charney Small, Riana Rossouw

Publikováno v: MethodsX, Vol 8, Iss , Pp 101441- (2021)

Pollution is a key threat to biodiversity and ecosystem health within protected areas. Using a non-invasive, multi-matrix approach, sediment, vegetation and faecal material from lion (Panthera leo) and giraffe (Giraffa camelopardalis) were collected

Externí odkaz: https://doaj.org/article/2196d4bf98f64b8baa735d471cf33409

Large predators can mitigate nutrient losses associated with off-site removal of animals from a wildlife reserve

Autor: Tomos O. Prys-Jones, Duncan McFayden, Marcus Clauss, Elizabeth le Roux, Dylan Smith, Andrea B. Webster, Christopher E. Doughty, Pieter C. de Jager, Andrew J. Abraham

Publikováno v: Abraham, A J, Webster, A B, Prys-Jones, T O, le Roux, E, Smith, D, McFayden, D, de Jager, P C, Clauss, M & Doughty, C E 2021, ' Large predators can mitigate nutrient losses associated with off-site removal of animals from a wildlife reserve ', Journal of Applied Ecology, vol. 58, no. 7, pp. 1360-1369 . https://doi.org/10.1111/1365-2664.13878

Animals concentrate key nutrients in their bodies. In fenced wildlife reserves where nutrient input and/or retention is low, the off-site removal of animals may constitute a significant loss of nutrients for the ecosystem. Here we add wildlife captur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55488c4be3d6779ba58b1be6585d31bb
https://pure.au.dk/portal/da/publications/large-predators-can-mitigate-nutrient-losses-associated-with-offsite-removal-of-animals-from-a-wildlife-reserve(dbaa4d7d-c78f-4094-b055-697e58602dc0).html

Assessment of trace element concentrations in sediment and vegetation of mesic and arid African savannahs as indicators of ecosystem health

Autor: Andre Ganswindt, Riana Rossouw, Andrea B. Webster, Nigel C. Bennett, F. Javier Callealta

Publikováno v: The Science of the total environment. 760

The savannah biome supports unique biodiversity and provides a multitude of ecosystem services. Defining background concentrations for trace elements in the environment is beneficial for the determination of nutrient deficiencies/hotspots and for the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6172f04c4402785e822babb3248887e
https://pubmed.ncbi.nlm.nih.gov/33187707

A non-invasive assessment of essential trace element utilization at different trophic levels in African wildlife

Autor: Andre Ganswindt, F.J. Callealta, Nigel C. Bennett, Andrea B. Webster

Publikováno v: Journal of Environmental Management. 293:112820

The complex relationships that exist between terrestrial mammals and their habitats make African ecosystems highly interactive environments. Anthropogenic activities including climate change have altered geochemical cycles, which influence nutrient a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9519368ef4d771831cb263d2ba8e8a99
https://doi.org/10.1016/j.jenvman.2021.112820