Page 1. BIOTROPICA 24(2a): 187-194 1992 Phenology of Flowering and Fruiting of an East African Ri... more Page 1. BIOTROPICA 24(2a): 187-194 1992 Phenology of Flowering and Fruiting of an East African Riverine Forest Ecosystem1 Margaret F. Kinnaird2 Department of Wildlife and Range Sciences, University of Florida, Gainesville ...
: The palm, Phoenix reclinata, is heavily exploited by people of the Tana River District of north... more : The palm, Phoenix reclinata, is heavily exploited by people of the Tana River District of northeastern Kenya and provides an important food source for an endangered forest primate, the Tana River crested mangabey (Cercocebus galeritus galeritus). Humans use all parts of the palm; preferential harvesting of the reproductive size classes may affect the palm's population structure, and excessive leaf removal may influence reproduction. Phoenix reclinata accounts for up to 62% of the monthly diet of the mangabey. Mangabeys rely heavily on the fruits and seeds of P. reclinata when other fruits are unavailable; therefore, the elimination of palms and the reduction of fruit production degrade the mangabey's habitat. Human exploitation of P. reclinata may not be sustainable. Regulated harvesting outside protected areas and cessation of harvesting within protected areas are necessary to provide benefits to both the humans and the endangered Tana River crested mangabey.
Global gradients in species biodiversity are expected to reflect tighter packing of species close... more Global gradients in species biodiversity are expected to reflect tighter packing of species closer to the equator. Yet, empirical validation of these patterns has so far focused on less diverse taxa, with comparable assessments of mega-diverse groups historically constrained by the taxonomic impediment. Here we assess the temporal and spatial turnover dynamics of arthropod communities sampled across 129 globally distributed monitoring sites. Overall, we encountered more than 150,000 unique BINs (i.e., species proxies). We show that global differences in community compositional change are linked to latitudinal, spatial, and temporal gradients, which are largely consistent across biogeographic regions. This general latitudinal imprint on community composition provides a mechanistic underpinning for global biodiversity gradients.
Page 1. BIOTROPICA 24(2a): 187-194 1992 Phenology of Flowering and Fruiting of an East African Ri... more Page 1. BIOTROPICA 24(2a): 187-194 1992 Phenology of Flowering and Fruiting of an East African Riverine Forest Ecosystem1 Margaret F. Kinnaird2 Department of Wildlife and Range Sciences, University of Florida, Gainesville ...
: The palm, Phoenix reclinata, is heavily exploited by people of the Tana River District of north... more : The palm, Phoenix reclinata, is heavily exploited by people of the Tana River District of northeastern Kenya and provides an important food source for an endangered forest primate, the Tana River crested mangabey (Cercocebus galeritus galeritus). Humans use all parts of the palm; preferential harvesting of the reproductive size classes may affect the palm's population structure, and excessive leaf removal may influence reproduction. Phoenix reclinata accounts for up to 62% of the monthly diet of the mangabey. Mangabeys rely heavily on the fruits and seeds of P. reclinata when other fruits are unavailable; therefore, the elimination of palms and the reduction of fruit production degrade the mangabey's habitat. Human exploitation of P. reclinata may not be sustainable. Regulated harvesting outside protected areas and cessation of harvesting within protected areas are necessary to provide benefits to both the humans and the endangered Tana River crested mangabey.
Global gradients in species biodiversity are expected to reflect tighter packing of species close... more Global gradients in species biodiversity are expected to reflect tighter packing of species closer to the equator. Yet, empirical validation of these patterns has so far focused on less diverse taxa, with comparable assessments of mega-diverse groups historically constrained by the taxonomic impediment. Here we assess the temporal and spatial turnover dynamics of arthropod communities sampled across 129 globally distributed monitoring sites. Overall, we encountered more than 150,000 unique BINs (i.e., species proxies). We show that global differences in community compositional change are linked to latitudinal, spatial, and temporal gradients, which are largely consistent across biogeographic regions. This general latitudinal imprint on community composition provides a mechanistic underpinning for global biodiversity gradients.
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