Natureza & Conservacao最新文献_第6页

Patterns of granivory in Acacia cyclops stands under biological control at Langebaanweg, South Africa 南非Langebaanweg的Acacia独眼巨人的粒象牙模式受到生物控制

Natureza & Conservacao Pub Date : 2016-01-01 DOI: 10.1016/j.ncon.2016.02.002

Thabiso Michael Mokotjomela

引用次数: 0

Do the size and shape of spatial units jeopardize the road mortality-risk factors estimates? 空间单元的大小和形状是否会危及道路死亡率风险因素的估计？

Natureza & Conservacao Pub Date : 2016-01-01 DOI: 10.1016/j.ncon.2016.01.001

Clara Grilo , Thálita de Resende Cardoso , Ricardo Solar , Alex Bager

引用次数: 10

Conservation of the Amazon rainforest: the role of environmental NGO's 保护亚马逊雨林：环保非政府组织的作用

Natureza & Conservacao Pub Date : 2016-01-01 DOI: 10.1016/j.ncon.2015.12.002

Ricardo Aleixo Correia

引用次数: 1

Some trees do not necessarily mean a forest: a criticism to Ramos and Anjos (2014) 有些树并不一定意味着森林：对拉莫斯和安霍斯的批评（2014）

Natureza & Conservacao Pub Date : 2015-07-01 DOI: 10.1016/j.ncon.2015.10.002

Marcos Ricardo Bornschein

引用次数: 1

Assessing the importance of riparian zones conservation for leaf decomposition in streams 评估河岸带保护对溪流叶片分解的重要性

Natureza & Conservacao Pub Date : 2015-07-01 DOI: 10.1016/j.ncon.2015.11.011

Cinthia G. Casotti , Walace P. Kiffer Jr. , Larissa C. Costa , Juliana V. Rangel , Lorena C. Casagrande , Marcelo S. Moretti

{"title":"Assessing the importance of riparian zones conservation for leaf decomposition in streams","authors":"Cinthia G. Casotti , Walace P. Kiffer Jr. , Larissa C. Costa , Juliana V. Rangel , Lorena C. Casagrande , Marcelo S. Moretti","doi":"10.1016/j.ncon.2015.11.011","DOIUrl":"https://doi.org/10.1016/j.ncon.2015.11.011","url":null,"abstract":"<div><p>Because of changes in riparian zones and water properties, human disturbances in terrestrial ecosystems can affect the decomposition of organic matter and invertebrate assemblages in forest streams. The aim of this study was to evaluate how changes in the riparian zones influenced leaf breakdown rates and colonization by invertebrate shredders. Leaves of <em>Miconia chartacea</em> were incubated in four streams of the same watershed that presented different conservation levels in the riparian zones. Leaf breakdown rates were higher in the presence of shredders and in the most preserved stream. In terms of abundance and biomass, shredders differed among streams, and the importance of these organisms on leaf decomposition decreased in altered streams. These results suggest the conservation level in the riparian zones influenced leaf decomposition mediated by shredders, and the observed decrease in breakdown rates was probably due to the high sensitivity of shredders to changes in the availability of food resources and habitat.</p></div>","PeriodicalId":49776,"journal":{"name":"Natureza & Conservacao","volume":"13 2","pages":"Pages 178-182"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ncon.2015.11.011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72080460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 36

Grassland degradation and restoration: a conceptual framework of stages and thresholds illustrated by southern Brazilian grasslands 草原退化和恢复：以巴西南部草原为例的阶段和阈值概念框架

Natureza & Conservacao Pub Date : 2015-07-01 DOI: 10.1016/j.ncon.2015.08.002

Bianca O. Andrade , Christiane Koch , Ilsi I. Boldrini , Eduardo Vélez-Martin , Heinrich Hasenack , Julia-Maria Hermann , Johannes Kollmann , Valério D. Pillar , Gerhard E. Overbeck

{"title":"Grassland degradation and restoration: a conceptual framework of stages and thresholds illustrated by southern Brazilian grasslands","authors":"Bianca O. Andrade , Christiane Koch , Ilsi I. Boldrini , Eduardo Vélez-Martin , Heinrich Hasenack , Julia-Maria Hermann , Johannes Kollmann , Valério D. Pillar , Gerhard E. Overbeck","doi":"10.1016/j.ncon.2015.08.002","DOIUrl":"https://doi.org/10.1016/j.ncon.2015.08.002","url":null,"abstract":"<div><p>Land degradation is a complex concept that integrates different aspects, including changes in soil conditions, biodiversity, productivity and socio-economic implications, compared to a reference state. We propose a new conceptual framework to analyze degradation stages and restoration thresholds in species-rich natural grasslands. The framework integrates different degradation stages with their respective thresholds and describes key processes of land-use change that lead to certain stages and thresholds. Specifically, we discuss two scenarios of grassland degradation, i.e. unsuitable grassland management and complete change of land use, sometimes followed by spontaneous recovery. We illustrate the framework with the case of south Brazilian grasslands, which are rich in biodiversity, but suffer from a series of degradation processes and are poorly considered from a conservation perspective. The conceptual framework can be applied by studies on degradation and restorability of tropical and subtropical grasslands after changes in management or transition to other land use; it will facilitate decisions on alternative management and conservation.</p></div>","PeriodicalId":49776,"journal":{"name":"Natureza & Conservacao","volume":"13 2","pages":"Pages 95-104"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ncon.2015.08.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72080500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 144

The ecosystem service approach and its application as a tool for integrated coastal management 生态系统服务方法及其作为沿海综合管理工具的应用

Natureza & Conservacao Pub Date : 2015-07-01 DOI: 10.1016/j.ncon.2015.10.001

Carla I. Elliff, Ruy K.P. Kikuchi

引用次数: 40

Functional diversity: an overview of its history and applicability 功能多样性：其历史和适用性概述

Natureza & Conservacao Pub Date : 2015-07-01 DOI: 10.1016/j.ncon.2015.11.001

Livia Maira Orlandi Laureto , Marcus Vinicius Cianciaruso , Diogo Soares Menezes Samia

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引用次数: 148

Dams, politics and drought threat: the march of folly in Brazilian freshwaters ecosystems 大坝、政治和干旱威胁：巴西淡水生态系统的愚蠢进军

Natureza & Conservacao Pub Date : 2015-07-01 DOI: 10.1016/j.ncon.2015.11.003

Dilermando Pereira Lima Junior , André Lincoln Barroso Magalhães , Jean Ricardo Simões Vitule

引用次数: 13

Dams, politics and drought threat: the march of folly in Brazilian freshwaters ecosystems 水坝、政治和干旱威胁:巴西淡水生态系统的愚蠢之旅

Natureza & Conservacao Pub Date : 2015-07-01 DOI: 10.1016/J.NCON.2015.11.003

Dilermando Pereira Lima Junior, A. Magalhães, J. Vitule

引用次数: 13