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Impacts of Global Climate Change on the Phenology of African Tropical Ecosystems
IMPACTS OF GLOBAL CLIMATE CHANGE ON THE PHENOLOGY OF AFRICAN TROPICAL ECOSYSTEMS GABRIELA S. ADAMESCU MSc by Research UNIVERSITY OF YORK Biology October 2016 1 Abstract The climate has been changing at an unprecedented rate, affecting natural systems around the globe. Its impact has been mostly reflected through changes in species’ phenology, which has received extensive attention in the current global-change research, mainly in temperate regions. However, little is known about phenology in African tropical forests. Africa is known to be vulnerable to climate change and filling the gaps is an urgent matter. In this study we assess plant phenology at the individual, site and continental level. We first compare flowering and fruiting events of species shared between multiple sites, accounting for three quantitative indicators, such as frequency, fidelity for conserving a certain frequency and seasonal phase. We complement this analysis by assessing interannual trends of flowering and fruiting frequency and fidelity to their dominant frequency at 11 sites. We complete the bigger picture by analysing flowering and fruiting frequency of African tropical trees at the site and community level. Next, we correlate three climatic indices (ENSO, IOD and NAO) with flowering and fruiting events at the canopy level, at 16 sites. Our results suggest that 30 % of the studied species show plasticity or adaptability to different environments and will most likely be resilient to moderate future climate change. At both site and continental level, we found that annual flowering cycles are dominant, indicating strong seasonality in the case of more than 50% of African tropical species under investigation. -
Floristic Diversity Across the Cameroon Mountains: the Case of Bakossi National Park and Mt Nlonako
Floristic Diversity across the Cameroon Mountains: The Case of Bakossi National Park and Mt Nlonako i Floristic Diversity across the Cameroon Mountains The case of Bakossi National Park and Mt Nlonako Technical Report Prepared and Submitted to the Rufford Small Grant Foundation, UK By Sainge Nsanyi Moses, Ngoh Michael Lyonga and Benedicta Jailuhge Tropical Plant Exploration Group (TroPEG) Cameroon June 2018 ii To cite this work: Sainge, MN., Lyonga, NM., Jailuhge B., (2018) Floristic Diversity across the Cameroon Mountains: The case of Bakossi National Park, and Mt Nlonako. Technical Report to the Rufford Small Grant Foundation UK, by Tropical Plant Exploration Group (TroPEG) Cameroon Authors: Sainge, MN., Lyonga NM., and Jailuhge B., Title: Floristic Diversity across the Cameroon Mountains: The case of Bakossi National Park, and Mt Nlonako. Tropical Plant Exploration Group (TroPEG) Cameroon P.O. Box 18 Mundemba, Ndian division, Southwest Region [email protected]; [email protected], Tel: (+237) 677513599 iii Acknowledgement We must comment that this is the fourth grant awarded as grant number 19476-D (being the second booster RSG ) which Tropical Plant Exploration Group (TroPEG) Cameroon has received from the Rufford Small Grant (RSG) Foundation UK. We are sincerely grateful and wish to express our deep hearted thanks for the immensed support since 2011. Our sincere appreciation also goes to the Government of Cameroon through the Ministry of Scientific Research and Innovation (MINRESI) and the Ministry of Forestry and Wildlife (MINFOF) for granting authorization to carry out this work. Special gratitute goes to Dr. Mabel Nechia Wantim of the University of Buea for her contribution in developing the maps. -
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Int. J. Curr. Res. Biosci. Plant Biol. 4(10), 1-30 (2017) International Journal of Current Research in Biosciences and Plant Biology Volume 4 ● Number 10 (October-2017) ● ISSN: 2349-8080 (Online) Journal homepage: www.ijcrbp.com Original Research Article doi: https://doi.org/10.20546/ijcrbp.2017.410.001 Plant Woody Diversity of the Highest Summit Forest (1156 m), in the Kala Massif, Western Yaoundé Stéphane Nazaire Madiapevo1*, Junelle Makemteu2 and Emmanuel Noumi3 1The University of Bangui, Centrafrique Republic 2Doctor, Faculty of Science, University of Yaoundé I, Yaoundé 3Plant Laboratory, Higher Teachers’ Training College, University of Yaoundé I, P. O. Box, 47, Yaoundé *Corresponding author. A bs t r ac t Article Info The purpose of this study was to evaluate the floristic affinities and the Accepted: 02 September 2017 phytogeographical spread of the woody vegetation on the Kala summit in the Kala Available Online: 06 October 2017 massif and to establish their qualitative and quantitative differences by comparing with other forested areas of the tropical regions of the world. Different analysis were based on a comparison of lists of tree species with dbh ≥10cm, inventoried in 1.5-ha K e yw or ds rectangular plots established in the submontane forest at altitudes >1000m. Woody Cameroon plants of diameter lower than 10cm were maintained to be used later for comparison. Flora diversity The floristic list for Kala summit used for this analysis contained 4411 individuals dbh Kala massif ≥1cm belonging to 210 species and regrouped into 46 families. Among this 1843 trees Kala summit dbh ≥10cm belonging to 194 species and 44 families. -
List of Plant Species Identified in the Northern Part of the Lope Reserve, Gabon*
TROPICS 3 (3/4): 249-276 Issued March, 1994 List of Plant Species Identified in the Northern Part of the Lope Reserve, Gabon* Caroline E.G. TUTIN Centre International de Recherche Medicales de Franceville, Franceville, Gabon; Department of Biological and Molecular Sciences, University of Stirling, Scotland. Lee J. T. WHITE NYZS-The Wildlife Conservation Society, U.S.A.; Institute of Cell, Animal and Population Biology, University of Edinburgh, Scotland; Programme de Conservation et Utilisation Rationelle des Ecosystemes Forestiers d'Afrique Centrale (ECOFAC), Composante Gabon (Projet FED, CCE DG VIII). Elizabeth A. WILLIAMSON Psychology Department, University of Stirling, Scotland. Michel FERNANDEZ Centre International de Recherche Medicales de Franceville, Franceville, Gabon; Department of Biological and Molecular Sciences, University of Stirling, Scotland; Programme de Conservation et Utilisation Rationelle des Ecosystemes Forestiers d' Afrique Centrale (ECOFAC), Composante Gabon (Projet FED, CCE DG VIII). Gordon MCPHERSON Missouri Botanical Garden, St. Louis, Missouri, U.S.A. ABSTRACT Research on lowland gorillas (Gorilla g. gorilla) and chimpanzees (Pan t. troglodytes) began at the 'Station d'Etudes des Gorilles et Chimpanzes' in the Lope Reserve, central Gabon, in 1983 and is on-going. This paper lists 676 species of plants belonging to 91 families that occur in the 50 sq. km study area. Data on trees with diameters of 10 cm or more were collected systematically along line transects and opportunistic collections of fertile plants were made. For each plant species, the life-form, habitat preference and density (for trees recorded on transects) are listed. For plants that provide food for gorillas and chimpanzees, the part eaten is given. -
Flora 4.34MB
Baseline Vegetation and Flora Assessment, Yaligimba Concession, Feronia, DRC. Prepared by Leigh-Ann de Wet (M.Sc., Pri. Sci. Nat) For Digby Wells and Associates (International) Limited (Subsidiary of Digby Wells & Associates (Pty) Ltd) November 2015 LD Biodiversity Consulting Biodiversity Assessments, Baseline surveys and Impact Assessments and Integrated Management Solutions. www.ldbiodiversity.co.za [email protected] 083 352 1936 LD Biodiversity Consulting i Yaligimba Concession, Feronia This report should be cited as: L. de Wet (2014). Baseline Vegetation and Flora Assessment, Yaligimba Concession, Feronia, DRC. LD Biodiversity Consulting. Appointment of Specialist Leigh-Ann de Wet (LD Biodiversity Consulting) was commissioned by Digby Wells and Associates (International) Limited (Subsidiary of Digby Wells & Associates (Pty) Ltd) to undertake a vegetation and flora assessment along High Conservation Value Assessment goals (HCVRN 2014). Terms of reference were to review all information available on vegetation and flora of the region, as well as applying knowledge gained from a further brief site visit. Determinations of possible impacts associated with the existing plantation as well comments on High Conservation Value were also required. Details of Specialist Leigh-Ann de Wet LD Biodiversity Consulting Telephone: 083 352 1936 e-mail: [email protected] Expertise of the specialist M.Sc. in Botany from Rhodes University. Registered Professional Natural Scientist with the South African Council for Natural Scientific Professionals (Ecological Science). Registered with RSPO as a certified High Conservation Value Assessor (Plants), since 2011. Founded LD Biodiversity Consulting in 2014. Ecological Consultant since 2009. Conducted, or have been involved in over 100 Ecological Impact Assessments, Baseline surveys, Biodiversity Action Plans and Offset Plans throughout Africa. -
A Preliminary Checklist of the Vascular Plants and a Key to Ficus of Goualougo Triangle, Nouabalé-Ndoki National Park, Republic of Congo
A Preliminary checklist of the Vascular Plants and a key to Ficus of Goualougo Triangle, Nouabalé-Ndoki National Park, Republic of Congo. Sydney Thony Ndolo Ebika MSc Thesis Biodiversity and Taxonomy of Plants University of Edinburgh Royal Botanic Garden Edinburgh Submitted: August 2010 Cover illustration: Aptandra zenkeri, Olacaceae Specimen: Ndolo Ebika, S.T. 28 By Sydney Thony Ndolo Ebika Acknowledgments Acknowledgments The achievement of this MSc thesis in Biodiversity and Taxonomy of Plants is the result of advice, support, help and frank collaboration between different people and organizations and institutions. Without these people this thesis could not have been achieved. My deep grateful thanks go to both Dr. Moutsamboté, J.-M. ( Rural Development Institute, Marien Ngouabi University, Republic of Congo ) and Dr. Harris, D.J. (Royal Botanic Garden Edinburgh) who gave me a powerful boost in studying plants during the botanic training workshop titled Inventory and Identification they organized at Kabo, Republic of Congo, in August 2006. Especially I would like to thank Dr. Harris, because the collaboration he established with the Goualougo Triangle Ape Project, Nouabalé- Ndoki National Park (NNNP), project I was working for, and his continued support for me has been very important to my training as a botanist. The Goualougo Triangle Ape Project (GTAP) is the area where all of the specimens treated in this thesis were collected. The team of this project was always looking after me night and day from 2006 to 2009. I would like to thank both principal investigators of the Triangle both Dr. Morgan, D. and Dr. Sanz, C. for their support to me. -
Compilation of Available Biological Information on Salonga National Park, Democratic Republic of Congo
COMPILATION OF AVAILABLE BIOLOGICAL INFORMATION ON SALONGA NATIONAL PARK, DEMOCRATIC REPUBLIC OF CONGO September 2007 Dr. Fiona Maisels Wildlife Conservation Society, DRC Biodiversity, Salonga. Complied by Fiona Maisels WCS Africa Programme With the generous help of : Callan Cohen, Ian Harrison, Bila-Isia Inogwabini, Gay Reinartz, Bob Schelly, Lisa Steel, and Melanie Stiassny. Objective: Complete the compilation and synthesis of all existing biological information on the park (spatially and descriptively). Taxa covered are: - Plants - Fish - Birds - Mammals Methods There is little existing documentation of the Salonga area. A few publications list taxa for small areas of this landscape, so individual people were contacted and unpublished information (lists or maps of occurrence of species) requested. The data received, and what is published, are presented in this report either as lists, or as maps culled from existing reports. Each list is accompanied by a map showing sites where the data was collected, and, for the large mammals, maps of distribution have been possible. No data on reptiles or amphibians were found specifically for Salonga. 1. Plants Four main sources were used here. Jean-Baptiste Dhetchuvi and Maisels et al worked in the northern sector of the Salonga National Park, at Botsima (Fig. 1). The Maisels et al list comprises mostly species eaten by primates, or larger trees. Dhetchuvi collected as a botanist, so all life forms are represented. Reinartz and Inogwabini worked mostly out of Etate, again in the northern sector (Fig. 1), to the west of the Park. The Reinartz et al list comprises species used for nests by bonobos, or eaten by bonobos, whereas the Inogwabini list is more general. -
Afbreken Bvg3.Qxd 24-11-2003 16:44 Page 7
afbreken BvG3.qxd 24-11-2003 16:44 Page 7 Chapter 1 General introduction Barend S. van Gemerden afbreken BvG3.qxd 24-11-2003 16:44 Page 9 African rain forests Tropical rain forests are among the most complex and species-rich eco- systems on Earth (Wilson 1995). The main rain forest area in Africa is the Guineo-Congolian region that extends from Senegal to western Kenya and northern Angola (White 1979; Figure 1a). Although the rain forests in this region are generally less diverse than those in the Neo- tropics and Indo-Malaysia (Huston 1994), they are estimated to house more than half of Africa’s species (Sayer et al. 1992). For example, the region holds some 84% of the primate species, 68% of the passerine bird species and 66% of the butterfly species found in Africa (Crowe & Crowe 1982; Carcasson 1964; Sayer et al. 1992). In addition, an esti- mated 8000 plant species are found in the Guineo-Congolian region (Sayer et al. 1992) Figure 1. Distribution of rain forests in West and Central Africa; a) phytochoria of White (1979) indicating maximum rainforest extent in the Guineo-Congolian centre of endemism (dark grey); b) rain forest cover in 1990 (Iremonger et al 1997); c) protected areas (Iremonger et al. 1997); d) postu- lated Pleistocene rain forest refugia, i.e. centres of local endemism (Sosef 1994). Arrow in a) indicates location of research site in southern Cameroon (3°N, 10°E). 9 While the characteristics and functioning of the African rain forests are still poorly understood, they are increasingly subject to large-scale degra- dation, fragmentation and deforestation (Sayer et al. -
Patterns of Distribution and Endemism of Plants in the Cameroon Mountains
Patterns of Distribution and Endemism of Plants in the Cameroon Mountains TroPEG Cameroon TroPEG Cameroon TroPEG Cameroon TroPEG Cameroon TroPEG Cameroon TroPEG Cameroon Patterns of Distribution and Endemism of Plants in the Cameroon Mountains-TroPEG 2016 Page i TroPEG Cameroon TroPEG Cameroon TroPEG Cameroon TroPEG Cameroon TroPEG Cameroon TroPEG Cameroon Patterns of Distribution and Endemism of Plants in the Cameroon Mountains-TroPEG 2016 Page ii Patterns of Distribution and Endemism of Plants in the Cameroon Mountains A case study of Protected Areas in Cameroon: Rumpi Hills Forest Reserve (RHFR) and the Kimbi Fungom National Park (KFNP). Technical Report Submitted to the Rufford Small Grant Foundation, UK By Sainge Nsanyi Moses Tropical Plant Exploration Group (TroPEG) Cameroon P.O. Box 18 Mundemba, South West Region, Cameroon January 2016 Patterns of Distribution and Endemism of Plants in the Cameroon Mountains-TroPEG 2016 Page iii To cite this work: M. N. Sainge, 2016. Patterns of distribution and Endemism of Plants in the Cameroon Mountains: A case study of Protected Areas in Cameroon: Rumpi Hills Forest Reserve (RHFR) and the Kimbi Fungom National Park (KFNP). Tropical Plant Exploration Group (TroPEG) Cameroon. Author: M. N. Sainge Title: Patterns of distribution and Endemism of Plants in the Cameroon Mountains Subtitle: A case study of Protected Areas in Cameroon: Rumpi Hills Forest Reserve (RHFR) and the Kimbi Fungom National Park (KFNP). Tropical Plant Exploration Group (TroPEG) Cameroon P.O. Box 18 Mundemba, Ndian, Southwest Region [email protected], [email protected] (+237) 677513599 Edited by: Ngoh Michael Lyonga and Benedicta Jailughe Tropical Plant Exploration Group (TroPEG) Cameroon Patterns of Distribution and Endemism of Plants in the Cameroon Mountains-TroPEG 2016 Page iv Acknowledgement We recognize the sponsorship of the Rufford Small Grant Foundation (RSG), UK; this piece of work would not have been realised without this funding (RSG reference 16712-B). -
A Survey of Mycorrhizal Colonization in the 50-Ha Korup Forest Dynamic Plot in Cameroon
American Journal of Plant Sciences, 2014, 5, 1403-1415 Published Online May 2014 in SciRes. http://www.scirp.org/journal/ajps http://dx.doi.org/10.4236/ajps.2014.510155 A Survey of Mycorrhizal Colonization in the 50-ha Korup Forest Dynamic Plot in Cameroon Eneke Esoeyang Tambe Bechem*, George Bindeh Chuyong, Belinda Tengu Fon Department of Botany and Plant Physiology, University of Buea, Buea, Cameroon Email: *[email protected] Received 9 January 2014; revised 18 March 2014; accepted 9 April 2014 Copyright © 2014 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract A study was carried out in the 50-ha Korup Forest Dynamic Plot in South West Cameroon, to eva- luate the diversity of mycorrhizal associations as well as to determine the effect of habitat types on the type of mycorrhizal association. A total of 781 individual trees belonging to 51 families, 165 genera and 252 tree species, were sampled from the four habitat types found in the plot: low drier, hill slope, ridge top and wetland complexes. In each habitat type, all stems ≤ 1 cm depth at breast height had already been tagged, measured, mapped and identified to the species level. Root sam- ples were collected, cleared, stained and examined microscopically for mycorrhizal type. Of the total number of species sampled, 248 (98.41%) formed mycorrhizal associations with only 4 (1.59%) being non mycorrhizal. For mycorrhizal trees, 232 (93.55%) formed exclusively arbus- cular mycorrhiza, 10 (4.03%) formed ectomycorrhiza, while 6 (2.42%) formed both ecto- and ar- buscular mycorrhiza. -
The Abundance and Diversity of Bird Species in Logged Ehor Forest Reserve Edo State, Nigeria
Scientific Reports in Life Sciences 2021, 2(1): 13-28 DOI: http://dx.doi.org/10.22034/srls.2020.520831.1008 Research Article The abundance and diversity of bird species in Logged Ehor Forest Reserve Edo state, Nigeria Okosodo Ehi Francis Department of Leisure and Tourism, Federal Polytechnic Ilaro, Ogun State *Corresponding email: francis .okosodo@federalpolyilaro .edu .ng Received: 12 December 2020 / Revised: 20 January 2021 / Accepted: 30 January 2021 / Published online: 4 Februry 2021. How to cite: Okosodo F.F. (2021). The abundance and diversity of bird species in Logged Ehor Forest Reserve Edo state, Nigeria2(1), 13-28. DOI: DOI: http://dx.doi.org/10.22034/srls.2020.520831.1008 Abstract The abundance and diversity of bird species were studied in Ehor Forest Reserve Edo state, Nigeria. The study area was divided into three compartments based on their different land-use types. The line transects method was used to collect bird species diversity and abundance in the study area. In all of 60 transect lines were randomly placed, measuring 1000 m. Each transect was divided into 200 m sections, with each block having 20 transects randomly placed. The site size determined the number of transect lines. Data were collected for six months (Dry and Wet seasons) in 20018. The quadrant method was used to determine plant species composition. This method involves a total enumeration count (TEC) of all trees above 1m in height and a Basal area of not less than 10cm from 25×25m2 quadrant sample plot, which was randomly selected through balloting from each sampling compartments. -
Preliminary Checklist of Vascular Plants of Bioko Island (Equatorial Guinea)
Botanica Complutensis 37: 109-133. 2013 ISSN: 0214-4565 http://dx.doi.org/10.5209/rev_BOCM.2013.v37.42275 Preliminary checklist of vascular plants of Bioko Island (Equatorial Guinea) Mauricio Velayos1*, Francisco Cabezas1, Patricia Barberá1, Manuel de la Estrella2, Carlos Aedo1, Ramón Morales1, Alejandro Quintanar1, Guillermo Velayos3 and Maximiliano Fero4 Abstract: Velayos, M.; Cabezas, F.; Barberá, P.; Estrella, M.; Aedo, C.; Morales, R.; Quintanar, A.; Velayos, G. & Fero, M. 2013. Preliminary checklist of vascular plants of Bioko Island (Equatorial Guinea). Bot. Complut. 37: 109-133. We present a list of taxa of vascular plants growing on Bioko (Equatorial Guinea). We are aware that there are still many unexplored areas, so it should be consider just as a first draft list. It is based on both herbarium specimens and on bibliographic references. The complete data, sup- porting each record, can be consulted in our online database at http://www.floradeguinea.com/herbario/. To the moment, there are known 2029 taxa from the island. Key words: biodiversity, Gulf of Guinea Islands, Equatorial Guinea, Bioko, floristic. Resumen: Velayos, M.; Cabezas, F.; Barberá, P.; Estrella, M.; Aedo, C.; Morales, R.; Quintanar, A.; Velayos, G. & Fero, M. 2013. Catálogo pre- liminar de plantas vasculares de la isla de Bioko (Guinea Ecuatorial). Bot. Complut. 37: 109-133. Presentamos el catálogo de táxones de plantas vasculares que crecen en Bioko (Guinea Ecuatorial). Somos conscientes de que existen aun numerosas zonas inexploradas, de manera que debe ser considerada únicamente como una lista preliminar. El catálogo está basado tanto en ma- terial de herbario como en referencias bibliográficas. Los datos sobre los que se basa cada cita pueden consultarse directamente en nuestra base de datos en http://www.floradeguinea.com/herbario/.