Local discourses on climate change adaptation are very relevant to many developing countries which suffer the most of climate change impacts. Smallholder farmers are a backbone to the Ghanaian economy. However, the ac...Local discourses on climate change adaptation are very relevant to many developing countries which suffer the most of climate change impacts. Smallholder farmers are a backbone to the Ghanaian economy. However, the activities of smallholder farmers are threatened by climate-related risk increasing their vulnerability. This study aims to review knowledge on climate change adaptation for the ultimate goal of fostering climate-resilience among smallholder farmers. This paper uses purposive sampling to systematically review recent available literature on the theme “adaptation of smallholder farmers in Ghana”. In order to avoid the duplication of the information and track data sources for accuracy purpose, Mendeley version 1.19.4 software was used to incorporate articles while MS EXCEL Version 2019 was used to categorize the types and key examples of adaptation strategies used by smallholders. It was found that the most utilized adaptation types are farm management and technology (67%) and diversification on and beyond the farm (20.6%) with less adoption for knowledge management, networks and governance (5.4%);farm financial management (4%);government interventions in rural infrastructure, the rural health care services, and risk reduction for the rural population (3%). Although the strategies enlisted above help to adapt to climate change, challenges such as poor and unsustainable agricultural practices, socio-cultural constraints, institutional barriers and under-representation of other regions (except Northern Ghana) in the study of climate change adaptation of smallholder farmers in Ghana remain. The study therefore advocates for strengthening the link between research institutions and the extension officers and enhanced deployment of agricultural extension services to smallholder farmers in the rural areas among others.展开更多
Skull characteristics play an important role in the systematics of tailed salamanders, in this study, the skulls ofLiua shihi and L. tsinpaensis were compared using a clearing and double-staining technique. The result...Skull characteristics play an important role in the systematics of tailed salamanders, in this study, the skulls ofLiua shihi and L. tsinpaensis were compared using a clearing and double-staining technique. The results showed that in L. tsinpaensis, the vomerine tooth rows are in a ＂ ＂ shape, the length of the inner vomerine tooth series is nearly equal to that of the outer series, the vomerine tooth rows do not extend beyond the choanae, an ossified articular bone is absent, the basibranchial is rod shaped, the radial loops exhibit a figure-eight shape, the cornua has two cylindrical branches, the urohyal is rod shaped, and the end of the ceratohyal is not ossified; these features differ considerably from those of L. shihi. The ossification of the posterior portion of the ceratohyal and the present or absent of ossified articular might represent ecological adaptation to feeding in different environments.展开更多
文摘Local discourses on climate change adaptation are very relevant to many developing countries which suffer the most of climate change impacts. Smallholder farmers are a backbone to the Ghanaian economy. However, the activities of smallholder farmers are threatened by climate-related risk increasing their vulnerability. This study aims to review knowledge on climate change adaptation for the ultimate goal of fostering climate-resilience among smallholder farmers. This paper uses purposive sampling to systematically review recent available literature on the theme “adaptation of smallholder farmers in Ghana”. In order to avoid the duplication of the information and track data sources for accuracy purpose, Mendeley version 1.19.4 software was used to incorporate articles while MS EXCEL Version 2019 was used to categorize the types and key examples of adaptation strategies used by smallholders. It was found that the most utilized adaptation types are farm management and technology (67%) and diversification on and beyond the farm (20.6%) with less adoption for knowledge management, networks and governance (5.4%);farm financial management (4%);government interventions in rural infrastructure, the rural health care services, and risk reduction for the rural population (3%). Although the strategies enlisted above help to adapt to climate change, challenges such as poor and unsustainable agricultural practices, socio-cultural constraints, institutional barriers and under-representation of other regions (except Northern Ghana) in the study of climate change adaptation of smallholder farmers in Ghana remain. The study therefore advocates for strengthening the link between research institutions and the extension officers and enhanced deployment of agricultural extension services to smallholder farmers in the rural areas among others.
基金supported by grants from the National Natural Science Foundation of China(NSFC 30900138,31471971)
文摘Skull characteristics play an important role in the systematics of tailed salamanders, in this study, the skulls ofLiua shihi and L. tsinpaensis were compared using a clearing and double-staining technique. The results showed that in L. tsinpaensis, the vomerine tooth rows are in a ＂ ＂ shape, the length of the inner vomerine tooth series is nearly equal to that of the outer series, the vomerine tooth rows do not extend beyond the choanae, an ossified articular bone is absent, the basibranchial is rod shaped, the radial loops exhibit a figure-eight shape, the cornua has two cylindrical branches, the urohyal is rod shaped, and the end of the ceratohyal is not ossified; these features differ considerably from those of L. shihi. The ossification of the posterior portion of the ceratohyal and the present or absent of ossified articular might represent ecological adaptation to feeding in different environments.
