Field data on Vegetation Structure and Effects of Human Use of the Dambos Ecosystem in Northern Mozambique

Mbanze, Aires Afonso; Mário, Amade Martins; Rivaes, Rui; Ribeiro‐Barros, Ana I.; Ribeiro, Natasha

doi:10.1016/j.dib.2019.104454

Cited by 3 publications

(4 citation statements)

References 2 publications

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“…In this study, Both A. tanganyicensis and A. versicolor were found to have a wide distribution wider than traditionally believed. According to Mbanze, et al, [16], A. tanganyicensis and A. versicolor and are represented fairly well in the part of the African continent north of the Limpopo, and they occur together in Zimbabwe as well as in the far north parts of the Transvaal [16]. The distribution of the plants tends to be less dense from eastern parts of the Zimbabwe to the western parts of the country.…”

Section: Discussionmentioning

confidence: 99%

“…In Zimbabwe, the occurrence of the windy season in August mainly may contribute to subclinical cases as the pods would be dry and with reduced toxicity. The most toxic are the young pods in which the toxin is concentrated in the cases of the pod and to a less common in the seeds [16]. Critical period to be wary of possible albiziosis in Zimbabwe is February to May when pods would still be unripe and most toxic, but during this period in Zimbabwe, there are no strong winds.…”

Section: Discussionmentioning

confidence: 99%

“…A. tanganyicensis is also called white paper bark Albizia [14]. The two neurotoxins from A. tanganyicensis were elaborated in 1987 by Steyn, et al, [15,16]. The principal toxin is 4-methoxypyridoxine and is similar in structure to that of the B6 vitamins, pyridoxine.…”

Section: Selection Of Study Sitesmentioning

confidence: 99%

“…The principal toxin is 4-methoxypyridoxine and is similar in structure to that of the B6 vitamins, pyridoxine. It is a neurotoxin that is antagonist to vitamin B6 and interferes with coenzyme activity in the central nervous system [16,17]. Characteristics of animal poisoning in South Africa are similar the features of Albizia poisoning to those in other countries [2] including Zimbabwe.…”

Section: Selection Of Study Sitesmentioning

confidence: 99%

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Distribution of Toxic Plants in Zimbabwe: The Albizia Species

Cecilia¹,

Frank²

2022

J Bot Res

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Toxic plants are a major drawback to livestock production since they can bring about total loss or reduced productivity of affected animals. Intoxications from plants are generally listed last on clinician's differential diagnoses. There are no published articles specifically on the distribution of toxic plants in Zimbabwe despite the presence of these plants in the country. The effects and impacts of these toxic plants may therefore have been overlooked over the years. Thus, it was imperative that an assessment of the distribution of Albizia species of toxic importance in Zimbabwe be carried out. This was also necessary as it would unveil much information to the veterinary profession and farmers leading to the prevention of deaths of ruminants due to albiziosis. The purpose of the survey was to establish the distribution of the toxic Albizia species in Zimbabwe, the associated species, their habitats and the possible factors associated with their spread. Five toxicologists and a botanist participated in the survey. Plant species were identified to genus and species level. Confirmation of the plants was done by an experienced botanist. All the provinces and districts of Zimbabwe were visited by road. The species of the plants, the coordinates of the location of the toxic plants were recorded as well as the nature of the environment in which the plants were located or grew. Quantum GIS was used to plot the maps showing the distribution of the plants in Zimbabwe. Two major Albizia plant species of toxicological importance were encountered: Albizia tanganyincensis and Albizia versciolor. A.tanganyicensis was found mainly in the North Eastern Zimbabwe and the Southern parts of the country. Albizia versicolor was found mainly in the periphery of the central Highveld of Zimbabwe. The main associated species for A.tanganyicensis and A.versicolor is Sterculia africana, which served as an indicator plant as well. Terminalia sericea and Julbernardia globiflora were also associated with these albizia species. The spread of A. tanyanyicensis was found to be attributed to seed and adoption for domestic use as fencing poles and as ornamental plants. A. tanganyicensis and A. versicolor could be causing ruminant poisoning in Zimbabwe, however, cases may go undiagnosed due to the low index of suspicion among both the veterinary profession and poor knowledge among the general public. Albizia tanganyicensis and A. versicolor are well established in Zimbabwe. Veterinarians should have a high index of suspicion when investigating cases of sudden deaths in ruminants with signs of struggle. This study should provide veterinarians and farmers with a raised awareness on the probability of albiziosis in Zimbabwe. Training of farmers on prevention of deaths due Albizia species is of paramount importance.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Selection Of Study Sitesmentioning

confidence: 99%

Section: Selection Of Study Sitesmentioning

confidence: 99%

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Distribution of Toxic Plants in Zimbabwe: The Albizia Species

Cecilia¹,

Frank²

2022

J Bot Res

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A Livelihood and Farming System approach for effective conservation policies in Protected Areas of Developing Countries: The case study of the Niassa National Reserve in Mozambique

et al. 2020

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Effective conservation requires that conservation policies and management decisions first target local actors who are dependent on natural resource use in Protected Areas (PA) of Developing Countries (DC). In rural areas of DCs, these actors are mainly farmers who also rely on off-farm activities such as harvest of Non-Timber Forest Products (NTFPs) to complement their livelihoods. Here, we propose a novel approach to support the development of policy interventions aimed at achieving conservation goals through the sustainable development of local people in PAs of DCs. The approach consists in identifying the main Livelihood and Farming Systems (LFS) and select those that are more conservation-friendly, and that may contribute to solve conservation and development problems such as Human-wildlife conflict. Identifying the existing LFS can also help in searching for conservation-relevant improvements that can contribute to local people wellbeing, considering the existing FS as the starting point for a sustainable development strategy in PAs of DC. Data from the Niassa National Reserve (NNR), the largest PA in Mozambique, were used to develop this LFS approach. Measures of effort applied in harvesting NTFPs and in managing agricultural inputs and outputs were collected from 329 households through a structured survey. Cluster analysis was performed to identify and characterise the main LFS in the NNR. Based on the cluster results, we have identified four livelihood systems (LS): gatherers, hunters, farmers and employees; four farming systems (FS): specialized in maize, rice and sorghum, and a mixed FS. A Multinomial Logistic Model was also applied to understand the drivers of LFS choice. Livelihood systems were mainly driven by householdlevel socio-economic factors, while FS were driven by village-level biophysical conditions. Households who were employed and had diversified farming and off-farm activities were better off and more resilient to climate change and crop-raiding animals. Intensification appears to occur gradually but has found to be limited by rainfall availability. Based on our findings, we propose that conservation experts and policy-makers should use a LFS approach to re-frame the conservation narrative in PAs of DCs and promote the existing practices that can better protect biodiversity while improving livelihood and welfare of local people.

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Genetic and morphological diversity in populations of Annona senegalensis Pers. occurring in Western (Benin) and Southern (Mozambique) Africa

Donhouedé

Marques

Salako

et al. 2023

PeerJ

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Background Understanding morpho-genetic diversity and differentiation of species with relatively large distributions is crucial for the conservation and sustainable management of their genetic resources. The present study focused on Annona senegalensis Pers., an important multipurpose wild plant, distributed exclusively in natural ecosystems but facing several threats. The study assessed the genetic and morphological diversity, structure, and differentiation of the species in populations from Western (Benin) and Southern (Mozambique) Africa. The material was evaluated to ascertain the environmental (climatic) determinants of the variation within this species. Methods Four sub-populations comprised of 154 individuals were phenotyped based on nineteen plant, fruit, and leaf morphological traits and further genotyped using ten polymorphic nuclear microsatellite (nSSR) markers. Results The results indicated strong differences in plant, fruit, and leaf morphological traits between Western and Southern populations. Furthermore, the studied populations were characterized by high genetic diversity, with an average genetic diversity index of 1.02. Western populations showed higher heterozygosity values (0.61–0.71) than Southern populations (0.41–0.49). Western and Southern populations were clearly differentiated into two different genetic groups, with further genetic subdivisions reflecting four sub-populations. Genetic variation between regions (populations) was higher (69.1%) than among (21.3%) and within (9.6%) sub-populations. Four distinct morphological clusters were obtained, which were strongly associated with the four genetic groups representing each sub-population. Climate, mainly precipitation and temperature indexes, explained the relatively higher variation found in morphological traits from Western (40.47%) in relation to Southern (27.98%) populations. Our study suggests that both environmental and genetic dynamics play an important role in the development of morphological variation in A. senegalensis.

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Field data on Vegetation Structure and Effects of Human Use of the Dambos Ecosystem in Northern Mozambique

Cited by 3 publications

References 2 publications

Distribution of Toxic Plants in Zimbabwe: The Albizia Species

Distribution of Toxic Plants in Zimbabwe: The Albizia Species

A Livelihood and Farming System approach for effective conservation policies in Protected Areas of Developing Countries: The case study of the Niassa National Reserve in Mozambique

Genetic and morphological diversity in populations of Annona senegalensis Pers. occurring in Western (Benin) and Southern (Mozambique) Africa

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