Zobrazeno 1 - 10
of 500
pro vyhledávání: '"J, Samways"'
Publikováno v:
Environmental and Sustainability Indicators, Vol 24, Iss , Pp 100478- (2024)
Biological surrogates are valuable for conservation when they are easy and cost-effective to sample, sensitive to anthropogenic change, and show similar assemblage patterns to other taxa. The umbrella index (UI) developed by Fleishman et al. (2000),
Externí odkaz:
https://doaj.org/article/4adefc2280484d2d8e5308d1d2c17bb4
Publikováno v:
Ecology and Evolution, Vol 14, Iss 8, Pp n/a-n/a (2024)
Abstract The Greater Cape Floristic Region at the southern tip of Africa is a global megadiversity hotspot. The region's biodiversity has been driven by a long history of topographic, climatic, and sea level change coupled with geological uplift, and
Externí odkaz:
https://doaj.org/article/26eb0b5ea53f460faf64aeb12645c01f
Autor:
Hayat Mahdjoub, Rabah Zebsa, Amin Kahalerras, Hichem Amari, Soufyane Bensouilah, Michael J. Samways, Rassim Khelifa
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Movement is essential for the maintenance of populations in their natural habitats, particularly for threatened species living in fluctuating environments. Empirical evidence suggests that the probability and distance of movement in territor
Externí odkaz:
https://doaj.org/article/1f0a177ec91048f08488bc0f965db6ff
Autor:
Sophie Kratschmer, Bärbel Pachinger, René Gaigher, James S. Pryke, Julia vanSchalkwyk, Michael J. Samways, Annalie Melin, Temitope Kehinde, Johann G. Zaller, Silvia Winter
Publikováno v:
Ecology and Evolution, Vol 11, Iss 12, Pp 7927-7945 (2021)
Abstract Wild bees are threatened by multiple interacting stressors, such as habitat loss, land use change, parasites, and pathogens. However, vineyards with vegetated inter‐rows can offer high floral resources within viticultural landscapes and pr
Externí odkaz:
https://doaj.org/article/d2498fab8451425aacdfabc5d4954639
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract While climate change severely affects some aquatic ecosystems, it may also interact with anthropogenic factors and exacerbate their impact. In dry climates, dams can cause hydrological drought during dry periods following a great reduction i
Externí odkaz:
https://doaj.org/article/30614f40533243ee9febb7d9c9a3a365
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
Abstract Mountains influence species distribution through differing climate variables associated with increasing elevation. These factors determine species niche ranges and phenology. Although the distribution patterns of some specific insect groups
Externí odkaz:
https://doaj.org/article/1ddc6374f83a4a41b2c9f6d9ebfd8c37
With up to a quarter of all insect species heading towards extinction over the next few decades, there is now a pressing need to summarize the techniques available for measuring insect diversity in order to develop effective conservation strategies.
Autor:
Rassim Khelifa, Charl Deacon, Hayat Mahdjoub, Frank Suhling, John P. Simaika, Michael J. Samways
Publikováno v:
Frontiers in Environmental Science, Vol 9 (2021)
Freshwater habitats worldwide are experiencing many threats from environmental and anthropogenic sources, affecting biodiversity and ecosystem functioning. In Africa, particularly in Mediterranean climate zones, rapid human population growth is predi
Externí odkaz:
https://doaj.org/article/8abb107f9fdf48b0ac097c134be6825a
Publikováno v:
Ecology and Evolution, Vol 9, Iss 10, Pp 5777-5786 (2019)
Abstract Fire is a major disturbance factor in many terrestrial ecosystems, leading to landscape transformation in fire‐prone areas. Species in mutualistic interactions are often highly sensitive to disturbances like fire events, but the degree and
Externí odkaz:
https://doaj.org/article/99597d13376242638e6ed1bff91954e9
Autor:
S. Adu-Acheampong, M. J. Samways
Publikováno v:
Biosystems Diversity, Vol 27, Iss 1, Pp 26-32 (2019)
Understanding the link between species traits and how they use various elements in a heterogeneous agro-natural landscape is essential for conservation planning. Land-use and season affect the availability of resources for herbivorous insects such as
Externí odkaz:
https://doaj.org/article/33455663b4aa490699b7cbe9be01b916