scholarly journals Long‐term trends in fruit production in a tropical forest at Ngogo, Kibale National Park, Uganda

Biotropica ◽  
2020 ◽  
Vol 52 (3) ◽  
pp. 521-532 ◽  
Author(s):  
Kevin B. Potts ◽  
David P. Watts ◽  
Kevin E. Langergraber ◽  
John C. Mitani
Keyword(s):  
Tropical Forest ◽  
National Park ◽  
Fruit Production ◽  
Kibale National Park ◽  
Long Term Trends

Intensive tree planting facilitates tropical forest biodiversity and biomass accumulation in Kibale National Park, Uganda

2011 ◽  
Vol 261 (3) ◽  
pp. 703-709 ◽  
Author(s):  
Patrick A. Omeja ◽  
Colin A. Chapman ◽  
Joseph Obua ◽  
Jeremiah S. Lwanga ◽  
Aerin L. Jacob ◽  
...  
Keyword(s):  
Tropical Forest ◽  
National Park ◽  
Biomass Accumulation ◽  
Tree Planting ◽  
Kibale National Park ◽  
Forest Biodiversity

scholarly journals Long-term trends in carnivore abundance using distance sampling in Serengeti National Park, Tanzania

2011 ◽  
Vol 48 (6) ◽  
pp. 1490-1500 ◽  
Author(s):  
Sarah M. Durant ◽  
Meggan E. Craft ◽  
Ray Hilborn ◽  
Sultana Bashir ◽  
Justin Hando ◽  
...  
Keyword(s):  
National Park ◽  
Distance Sampling ◽  
Serengeti National Park ◽  
Long Term Trends

scholarly journals Long-term Effects of Four Groundcover Management Systems in an Apple Orchard

HortScience ◽  
2011 ◽  
Vol 46 (8) ◽  
pp. 1176-1183 ◽  
Author(s):  
Amaya Atucha ◽  
Ian A. Merwin ◽  
Michael G. Brown
Keyword(s):  
Fruit Production ◽  
Apple Orchard ◽  
Weed Suppression ◽  
Management Systems ◽  
Residual Soil ◽  
Long Term Effects ◽  
Long Term Trends ◽  
Total Soil Nitrogen ◽  
Surface Vegetation

Groundcover management systems (GMSs) are essential for fruit production, but very few long-term studies have evaluated orchard GMS sustainability. We evaluated four GMSs—pre-emergence soil-active herbicides (PreHerb), post-emergence herbicide (PostHerb), a turfgrass cover crop (Sod), and hardwood bark mulch (Mulch)—in an apple (Malus domestica Borkh.) orchard over 16 years of continuous observation. There were no consistent long-term trends in fruit yields among GMSs, although during the first 5 years, yields were lower in trees on Sod. Tree growth was greater in PostHerb and Mulch than in Sod during the first 5 years, and during the next decade, trees in Mulch plots were consistently larger than in other GMSs. Total soil nitrogen (N) and carbon (C) content, C-to-N ratios, and essential plant nutrients were much greater in the Mulch soil after 16 years of treatments. Long-term responses of trees to groundcover vegetation indicated that apple trees respond adaptively to compensate for weed and grass competition. Year-round elimination of surface vegetation with residual soil active herbicides may be unnecessary or even detrimental for orchard productivity and soil fertility in established orchards. Post-emergence herbicides that reduce weed competition primarily during the summer months may offer an optimal combination of weed suppression and soil conservation.

scholarly journals An observation of intergroup infanticide in grey-cheeked mangabeys (Lophocebus albigena)

Behaviour ◽  
2020 ◽  
Vol 157 (12-13) ◽  
pp. 1091-1098
Author(s):  
Michelle Brown
Keyword(s):  
Sexual Selection ◽  
National Park ◽  
Kibale National Park ◽  
Primate Species ◽  
Lophocebus Albigena ◽  
Selection Hypothesis ◽  
Sexual Selection Hypothesis ◽  
Intergroup Conflicts

Abstract In primates, infanticide is occasionally observed during intergroup conflicts but does not fit the predictions of the sexual selection hypothesis. I report an observation of an intergroup infanticide during a sub-group foray in grey-cheeked mangabeys (Lophocebus albigena) at the Ngogo site in Kibale National Park, Uganda. Intergroup infanticide appears to be a form of extreme and long-term food defence across primate species, and occurs in conjunction with other forms of food defence.

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