This paper examines the various human and non-human factors endangering snail species' population, growth, development and reproduction both in the wild and under domestication; it also highlights the diseases affecting edible snails, conservation consciousness and preventive management practices to be adopted by snail farmers in West Africa in order to ensure the continued existence of these indigenous species with their enormous nutritional, health and economic benefit to mankind.
In recent times, the wild snail species population in West Africa has witnessed a steady decline in its population and biodiversity attributed to the impact of human activities, predators, climatic factors and diseases. With the expected 30% rise in the world’s population from 7.03 billion in 2010 to 9.14 billion in 2030, adequate measures should be taken and adopted to ensure the continued existence of these economic snails biodiversity in the ecosystem. Some of the unsupported snail hunting and population depleting behaviours of the farmers in the region are highlighted and corrected.
Table of Contents
1. Introduction
2. Risk Factors and Human Activities that affect African Land Snails Population
3. Climatic Factors Affecting African Land Snail Population in the Humid Tropics
4. Predators of African Land Snails in the Humid Tropics
5. Diseases and Parasite affecting African Land Snails in the Humid Tropics
6. Preventive Measures under Intensive and Semi-Intensive System of Snail Farming
7. Recommendations
8. Conclusion
Objectives and Topics
The primary objective of this paper is to examine the various human and environmental factors that threaten snail species, and to outline essential management and conservation practices necessary to ensure the sustainable production and survival of indigenous African land snails.
- The impact of anthropogenic activities, such as deforestation and chemical use, on snail biodiversity.
- The influence of climatic variables like temperature, humidity, and wind on snail development.
- Identification of major biological predators, diseases, and parasites affecting snail populations.
- Implementation of intensive and semi-intensive farming systems to improve snail rearing and prevent losses.
Excerpt from the Book
Predators of African Land Snails in the Humid Tropics
Giant African land snails are faced with the challenge of predator in their natural wild habitat, these predators pose a great danger to their normal growth and reproduction of snails, if not checkmated may lead to the decline in population of snail biodiversity or extinction of various snail species in nature. Predators mostly depend on their prey as a source of food for survival in the ecosystem. Snail predators feed on the snail species at their various stages of growth and maturity. According to Akinnusi (2014), snail predators includes: Arthropods – Insects (termites, beetle, mites, moth, driver ants, carabid beetles, cockroaches and soldier ants); Crusteceans: – Millipedes, Centipedes, Cricket, Crabs and Forest Spider; Reptiles:- Lizards and Snakes, Amphibians:- frogs, turtles and toads; nematodes, Rodents:- mice and rats; Aves:- birds, crows, ducks and turkeys as well as Mammal:- man (Ikechukwu, 2012).
Summary of Chapters
Introduction: This chapter highlights the declining population of edible snail species in Nigeria due to over-harvesting and human encroachment into natural habitats, emphasizing the need for organized rearing systems.
Risk Factors and Human Activities that affect African Land Snails Population: This section details how deforestation, agricultural chemical use, and slash-and-burn practices contribute to habitat destruction and the endangerment of snail populations.
Climatic Factors Affecting African Land Snail Population in the Humid Tropics: This chapter explores how variables such as temperature, humidity, soil type, and air movement dictate the growth, reproduction, and survival rates of snails.
Predators of African Land Snails in the Humid Tropics: An overview of the diverse biological threats, including insects, reptiles, birds, and humans, that prey on snails at different life stages.
Diseases and Parasite affecting African Land Snails in the Humid Tropics: This chapter identifies common health threats like fungal infections, bacterial diseases, and nutritional deficiencies that impact snail health in both wild and domestic settings.
Preventive Measures under Intensive and Semi-Intensive System of Snail Farming: This section outlines practical management strategies, such as proper housing construction, soil sanitation, and hygiene protocols to minimize disease spread and predation.
Recommendations: The chapter provides strategic advice for government agencies, research institutions, and farmers to promote sustainable snail farming through training and the development of commercial feeds.
Conclusion: This final chapter reiterates that domesticating indigenous snail species and adopting scientific farming practices are essential for preserving biodiversity and securing a viable protein source.
Keywords
Snail Farming, Snail Risk Factors, Snail Diseases, Snail Predators, Snail Species Conservation, Humid Tropics, African Land Snail, Biodiversity, Animal Protein, Snail Management, Sustainable Agriculture, Habitat Protection, Snail Reproduction, Domesticated Snails, Food Security
Frequently Asked Questions
What is the core focus of this publication?
This document focuses on the challenges facing African land snails in the humid tropics, specifically regarding population decline, environmental threats, and the implementation of sustainable farming and management practices.
What are the primary themes discussed?
The key themes include the impact of human activity, climatic influences on snail survival, biological threats from predators and diseases, and the technical requirements for intensive snail farming systems.
What is the main goal of the research presented?
The goal is to provide a comprehensive guide on how to protect indigenous snail species through domestication and organized rearing to ensure their continued nutritional and economic contribution to society.
Which scientific methods are primarily highlighted?
The paper promotes observational and management-based scientific methods, including environmental sanitation, controlled housing construction, proper dietary management, and the use of standardized sterilization techniques for snail habitats.
What topics are covered in the main section of the document?
The main sections cover the identification of risk factors like deforestation, the effects of climatic conditions such as heat stress and dehydration, common pathogens, and practical, preventive hygiene protocols for snail farmers.
How would you characterize this work based on its keywords?
The work is centered on snail farming, conservation, and management within the specific ecological context of the humid tropics, linking agricultural productivity with biodiversity preservation.
How do climatic factors like temperature specifically influence snail productivity?
Temperature dictates metabolic activity; optimal ranges are 23-28°C. Deviations cause heat stress, leading to reduced feed intake, lower egg production, and potential aestivation or death.
Why is soil management considered a critical preventive measure?
Soil acts as both a habitat and a source of food. Proper sterilization of topsoil is essential to eradicate nematodes, parasites, and harmful microorganisms that threaten snail health and reproduction.
What role does the author suggest for non-governmental organizations?
The author suggests that organizations like the Research Network for Giant African Land Snails (NetGALS) should promote research findings and provide free training seminars to help intending farmers enter the business.
- Quote paper
- Samuel Ekwu (Author), 2016, Snail Farming. Risk Factors, Diseases and Conservation Practice in the Humid Tropics, Munich, GRIN Verlag, https://www.hausarbeiten.de/document/358658
