The role of breeding range, diet, mobility and body size in associations of raptor communities and land-use in a West African savanna

2013 ◽  
Vol 166 ◽  
pp. 231-246 ◽  
Author(s):  
Ralph Buij ◽  
Barbara M. Croes ◽  
Gerrit Gort ◽  
Jan Komdeur
2011 ◽  
Vol 20 (14) ◽  
pp. 3341-3362 ◽  
Author(s):  
Blandine Marie Ivette Nacoulma ◽  
Katharina Schumann ◽  
Salifou Traoré ◽  
Markus Bernhardt-Römermann ◽  
Karen Hahn ◽  
...  

2020 ◽  
Vol 21 ◽  
pp. e00875
Author(s):  
Larba Hubert Balima ◽  
Blandine Marie Ivette Nacoulma ◽  
Philippe Bayen ◽  
François N’Guessan Kouamé ◽  
Adjima Thiombiano

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Issouf Zerbo ◽  
Markus Bernhardt-Römermann ◽  
Oumarou Ouédraogo ◽  
Karen Hahn ◽  
Adjima Thiombiano

West African Savanna ecosystems are undergoing severe changes in their vegetation composition due to the impact of human land use and changes in climatic conditions. This study aims to examine the effect of climate, land use, and their interaction on species richness and composition of West African herbaceous vegetation. Plot based vegetation sampling was done in Burkina Faso. Specific richness and diversity indices were used to determine the effect of land use, climate, and their interaction. An importance value was computed to determine herbaceous species dominating the communities. Frequency of species is used to examine their distribution pattern. The results showed that climate significantly influenced herbaceous specific richness more than land use. However, land use had a significant effect on herbaceous vegetation composition. Herbaceous species diversity changed with environmental conditions. The floristic composition of dominant species is driven by both climate and land use. The frequency of distribution demonstrated that herbaceous species occurrences were more influenced by the mixed effect of climate and land use than their separate effects. Occasional and rare species are the most important part of herbaceous vegetation. Thus heterogeneity of Savanna ecosystem and vulnerability of herbaceous species are high.


2020 ◽  
Vol 5 ◽  
pp. 7-11
Author(s):  
Malek Abdel-Shehid

Calypso is a popular Caribbean musical genre that originated in the island nation of Trinidad and Tobago. The genre was developed primarily by enslaved West Africans brought to the region via the transatlantic slave trade during the seventeenth and eighteenth centuries. Although West-African Kaiso music was a major influence, the genre has also been shaped by other African genres, and by Indian, British, French, and Spanish musical cultures. Emerging in the early twentieth century, Calypso became a tool of resistance by Afro-Caribbean working-class Trinbagonians. Calypso flourished in Trinidad due to a combination of factors—namely, the migration of Afro-Caribbean people from across the region in search of upward social mobility. These people sought to expose the injustices perpetrated by a foreign European and a domestic elite against labourers in industries such as petroleum extraction. The genre is heavily anti-colonial, anti-imperial, and anti-elitist, and it advocated for regional integration. Although this did not occur immediately, Calypsonians sought to establish unity across the region regardless of race, nationality, and class through their songwriting and performing. Today, Calypso remains a unifying force and an important part of Caribbean culture. Considering Calypso's history and purpose, as well as its ever-changing creators and audiences, this essay will demonstrate that the goal of regional integration is not possible without cultural sovereignty.


2021 ◽  
pp. 1-9
Author(s):  
Adena R Rissman ◽  
Molly C Daniels ◽  
Peter Tait ◽  
Xiaojing Xing ◽  
Ann L Brower

Summary Neoliberal land reforms to increase economic development have important implications for biodiversity conservation. This paper investigates land reform in New Zealand’s South Island that divides leased state-owned stations (ranches) with private grazing leases into state-owned conservation land, private land owned by the former leaseholder and private land under protective covenant (similar to conservation easement). Conserved lands had less threatened vegetation, lower productivity, less proximity to towns and steeper slopes than privatized lands. Covenants on private land were more common in intermediate zones with moderate land-use productivity and slope. Lands identified with ecological or recreational ‘significant inherent values’ were more likely to shift into conserved or covenant status. Yet among lands with identified ecological values, higher-threat areas were more likely to be privatized than lower-threat areas. This paper makes two novel contributions: (1) quantitatively examining the role of scientific recommendations about significant inherent values in land reform outcomes; and (2) examining the use of conservation covenants on privatized land. To achieve biodiversity goals, it is critical to avoid or prevent the removal of land-use restrictions beyond protected areas.


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