Grazing and plant poaching are also factors leading to the rare Prince Albert vygie dwindling, researchers said
Lost your password? Please enter your username or email address. You will receive a link to create a new password via email.Populations of the endemic species found in the Prince Albert region of the Western Cape have declined over the past 20 years, researchers at theof the South African National Biodiversity Institute’s Threatened Species Programme.
In 2002, various populations of this species were surveyed across an elevation gradient — similar to a slope — they said. Subsequent surveys were conducted in 2020 and 2021, during an intense drought period, and again in 2023 after drought-breaking rains, to assess the condition of the populations.population trends across various sites were investigated in terms of rainfall, elevation, microsite and land use.
“Grazing intensity was not found to significantly affect population size, however, there was a negative effect on populations. Microsite differences are affected by grazing intensity by reducing shade produced by nurse plants and therefore increasing temperature.” Additionally, most of the dead plants were found in the smallest size class while larger individuals were more likely to survive. No recently recruiting individuals were encountered during the 2023 surveys that followed good drought-breaking rains, “therefore, recruitment failure may have also played a role in the observed population changes”.
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