Fernando Ramirez – författare

This book explores two Rubus species from South America. It will address the species Rubus bogotensis Kunth and Rubus acanthophyllos Focke. It addresses aspects, such as origin, phenology, propagation, floral and fruit morphology, arthropod visitors, pollination, breeding, morphological diversity, and genetic diversity. It includes new unpublished data and results about plant phenology, flowering, insect visitors, fruit length-weight relationships, and fruit and pyrene morphology. This work includes an in-depth review of the most recently published information on the topic. The Rubus species studies are underutilized crops from Latin America. Furthermore, these species could be used in breeding programs for improvement. They can also be hybridized with other Rubus species to obtain better-quality hybrids. This book contains numerous photographs selected by the author to provide the reader with detailed information about the plant´s morphological features and arthropod visitors.

Recent research has shed light on the crucial role of wood density, a fundamental physical property, as a functional trait. This means wood density isn''t just about how much a piece of wood weighs, but how it influences a plant''s entire strategy for survival and growth. While variations exist between individual species, a surprising trend has emerged: the majority of this variation can be traced back to a plant''s genus or even family. This strong phylogenetic signal indicates that wood density is a deeply ingrained characteristic, shaped by a plant''s evolutionary history. This newfound understanding allows us to leverage wood density as a taxon-based functional trait. By considering the typical wood density of a plant group (like a genus or family), we can improve models and predictions related to various ecological and functional aspects in forests and plantations. Over the past couple of decades, scientists have been actively exploring the connections between wood density and a wide range of plant functions. Denser wood is often linked to slower growth rates, delayed reproduction, and increased mechanical strength. It also influences a plant''s ability to transport water, resist death (mortality rate), and manage internal water balance (water potential). Additionally, wood density is closely tied to physiological aspects such as gas exchange and xylem hydraulic conductance, which are crucial for nutrient and water movement. Wood density is also an important parameter to determine the carbon sequestration capacity of a tree or vegetation, thus important in climate change research. This proposed book will delve into these fascinating connections, highlighting how wood density acts as a key player in shaping the lives of plants and the overall health of forest ecosystems.

This brief reviews the pollination aspects of both wild and domesticated fruit tree species in a global climate change context. It explores cross-pollination mediated by insects, vertebrates and abiotic factors, self-pollination and their global warming implications. The authors identify the link between abiotic factors such as precipitation and severe droughts in the context of tree pollination and climate change. Furthermore, pollination and conservation implications in agriculture as well as wild tree populations are explored. Emphasis has been given to fruit trees growing in tropical, subtropical and temperate environments.