{"title":"农景结构及红松鼠对可可荚的破坏","authors":"M. Molina, M. Mazón","doi":"10.47280/revfacagron(luz).v39.n4.06","DOIUrl":null,"url":null,"abstract":"Cocoa is a strategic resource because it hosts high biodiversity, and it is a reliable source of foreign exchange. In Venezuela, fungi and red squirrels mainly affect its productivity. The objective was to evaluate the influence of the cocoa crop structure on the level of damage caused by red squirrels on the pods. The vegetation structure was defined in 15 farms assessing the cocoa tree biomass, the magnitude of shade tree cover, number of associated crops, presence of alternative fruit trees, and the type of ecological succession present in the surrounding. The % of damage was calculated, and nonparametric tests were used to process data. The damage was higher in crops with less shade cover, a more abundant number of associated crops, and alternative fruit trees. Squirrels used the cocoa pods opportunistically but preferred other fruits. It is concluded that pods can be a complementary food for squirrels to the extent that the cocoa plantation is more complex and has a connection with the forest. Shade cover did not directly influenced squirrels, but it is crucial for bird predators which are more sensitive to disturbance.","PeriodicalId":54470,"journal":{"name":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Agrolandscape structure and damage caused by red squirrels to cocoa pods\",\"authors\":\"M. Molina, M. Mazón\",\"doi\":\"10.47280/revfacagron(luz).v39.n4.06\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Cocoa is a strategic resource because it hosts high biodiversity, and it is a reliable source of foreign exchange. In Venezuela, fungi and red squirrels mainly affect its productivity. The objective was to evaluate the influence of the cocoa crop structure on the level of damage caused by red squirrels on the pods. The vegetation structure was defined in 15 farms assessing the cocoa tree biomass, the magnitude of shade tree cover, number of associated crops, presence of alternative fruit trees, and the type of ecological succession present in the surrounding. The % of damage was calculated, and nonparametric tests were used to process data. The damage was higher in crops with less shade cover, a more abundant number of associated crops, and alternative fruit trees. Squirrels used the cocoa pods opportunistically but preferred other fruits. It is concluded that pods can be a complementary food for squirrels to the extent that the cocoa plantation is more complex and has a connection with the forest. Shade cover did not directly influenced squirrels, but it is crucial for bird predators which are more sensitive to disturbance.\",\"PeriodicalId\":54470,\"journal\":{\"name\":\"Revista De La Facultad De Agronomia De La Universidad Del Zulia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2022-11-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Revista De La Facultad De Agronomia De La Universidad Del Zulia\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.47280/revfacagron(luz).v39.n4.06\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"AGRONOMY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revista De La Facultad De Agronomia De La Universidad Del Zulia","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.47280/revfacagron(luz).v39.n4.06","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"AGRONOMY","Score":null,"Total":0}
Agrolandscape structure and damage caused by red squirrels to cocoa pods
Cocoa is a strategic resource because it hosts high biodiversity, and it is a reliable source of foreign exchange. In Venezuela, fungi and red squirrels mainly affect its productivity. The objective was to evaluate the influence of the cocoa crop structure on the level of damage caused by red squirrels on the pods. The vegetation structure was defined in 15 farms assessing the cocoa tree biomass, the magnitude of shade tree cover, number of associated crops, presence of alternative fruit trees, and the type of ecological succession present in the surrounding. The % of damage was calculated, and nonparametric tests were used to process data. The damage was higher in crops with less shade cover, a more abundant number of associated crops, and alternative fruit trees. Squirrels used the cocoa pods opportunistically but preferred other fruits. It is concluded that pods can be a complementary food for squirrels to the extent that the cocoa plantation is more complex and has a connection with the forest. Shade cover did not directly influenced squirrels, but it is crucial for bird predators which are more sensitive to disturbance.
期刊介绍:
La Revista de la Facultad de Agronomía de la Universidad del Zulia publica artículos científicos, notas técnicas, comunicaciones rápidas y artículos invitados originales e inéditos, es decir, que no hayan sido publicados ni enviados simultáneamente a otra revista para su publicación, de autores interesados en el campo agrícola vegetal y agrícola animal. De presentarse el caso que el autor o autores hubiesen enviado o publicado su manuscrito simultáneamente en otra revista, podrán ser sancionados con la no publicación en esta revista por tiempo indefinido.
Se admiten manuscritos escritos en idioma Español, Portugués o Inglés, con un resumen en Español o Portugués y otro en Inglés (Abstract).