ORCID Profile
0000-0001-6055-7378
Current Organisation
University of East Anglia
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Publisher: The Royal Society
Date: 02-08-2005
Abstract: Across large parts of the world, wildlife has to coexist with human activity in highly modified and fragmented landscapes. Combining concepts from population viability analysis and spatial reserve design, this study develops efficient quantitative methods for identifying conservation core areas at large, even national or continental scales. The proposed methods emphasize long-term population persistence, are applicable to both fragmented and natural landscape structures, and produce a hierarchical zonation of regional conservation priority. The methods are applied to both observational data for threatened butterflies at the scale of Britain and modelled probability of occurrence surfaces for indicator species in part of Australia. In both cases, priority landscapes important for conservation management are identified.
Publisher: Wiley
Date: 24-09-2021
Abstract: Identifying important sites for bio ersity is vital for conservation and management. However, there is a lack of accessible, easily applied tools that enable practitioners to delineate important sites for highly mobile species using established criteria. We introduce the R package ‘track2KBA’, a tool to identify important sites at the population level using tracking data from in idual animals based on three key steps: (a) identifying in idual core areas, (b) assessing population‐level representativeness of the s le and (c) quantifying spatial overlap among in iduals and scaling up to the population. We describe package functionality and exemplify its application using tracking data from three taxa in contrasting environments: a seal, a marine turtle and a migratory land bird. This tool facilitates the delineation of sites of ecological relevance for erse taxa and provides output useful for assessing their importance to a population or species, as in the Key Bio ersity Area (KBA) Standard. As such, ‘track2KBA’ can contribute directly to conservation planning at global and regional levels.
Publisher: Springer Science and Business Media LLC
Date: 13-11-2018
DOI: 10.1038/S41467-018-07273-Z
Abstract: Climate change is affecting bio ersity, but proximate drivers remain poorly understood. Here, we examine how experimental heatwaves impact on reproduction in an insect system. Male sensitivity to heat is recognised in endotherms, but ectotherms have received limited attention, despite comprising most of bio ersity and being more influenced by temperature variation. Using a flour beetle model system, we find that heatwave conditions (5 to 7 °C above optimum for 5 days) damaged male, but not female, reproduction. Heatwaves reduce male fertility and sperm competitiveness, and successive heatwaves almost sterilise males. Heatwaves reduce sperm production, viability, and migration through the female. Inseminated sperm in female storage are also damaged by heatwaves. Finally, we discover transgenerational impacts, with reduced reproductive potential and lifespan of offspring when fathered by males, or sperm, that had experienced heatwaves. This male reproductive damage under heatwave conditions provides one potential driver behind bio ersity declines and contractions through global warming.
Publisher: Wiley
Date: 31-10-2011
Publisher: Wiley
Date: 14-01-2009
Location: United Kingdom of Great Britain and Northern Ireland
Location: Portugal
No related grants have been discovered for Aldina Franco.