scholarly journals Effects of agricultural systems on the anuran diversity in the Colombian amazon

2020 ◽  
Author(s):  
Juan C. Diaz-Ricaurte ◽  
Nayra Camila Arriaga-Villegas ◽  
Juan David López-Coronado ◽  
Gina Ximena Macias-Garzón ◽  
Bruno F. Fiorillo
Keyword(s):  
Species Composition ◽  
Tropical Rainforest ◽  
Secondary Forest ◽  
Agroforestry Systems ◽  
Management Tool ◽  
Great Similarity ◽  
Agricultural Systems ◽  
Different Types ◽  
Forest Remnants ◽  
Colombian Amazon

AbstractWe provide information on the diversity of anurans from agroforestry systems in the Colombian Amazon. This area is inserted at the tropical rainforest ecosystem and consists mainly of secondary forest remnants surrounded by crops, grasslands, and agroforestry systems. From February to May 2015, we sampled anurans mainly with visual and auditory surveys. We recorded a total of 1096 individuals of 20 species of anurans from six families at the study area. The relictual forest was the richest environment, followed by Achapo and Cacao agroforestry systems. The Achapo system showed great similarity in species composition with relictual forest, however, the latter presented the highest number of exclusive species, whereas the first presented only two and Cacao system didn’t have any exclusive species. Our results show that the richness can vary between the different types of agroforestry systems and highlight their importance as management tool for anurans conservation in the Colombian Amazon.

Agroforestry systems in the Colombian Amazon improve the provision of soil ecosystem services

2021 ◽  
Vol 164 ◽  
pp. 103933
Author(s):  
Leonardo Rodriguez ◽  
Juan Carlos Suárez ◽  
Mirjam Pulleman ◽  
Lised Guaca ◽  
Adrian Rico ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Agroforestry Systems ◽  
Soil Ecosystem ◽  
Soil Ecosystem Services ◽  
Colombian Amazon

scholarly journals Differences of tree species composition and microclimate between a mahogany(swietenia macrophyllaking) plantation and a secondary forest in Mt. Makiling, Philippines

2006 ◽  
Vol 2 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Yong Kwon Lee ◽  
Don Koo Lee ◽  
Su‐Young Woo ◽  
Emmanuel Rodantes G. Abraham ◽  
Wilfredo M. Carandang ◽  
...  
Keyword(s):  
Species Composition ◽  
Tree Species ◽  
Secondary Forest ◽  
Tree Species Composition

scholarly journals Ecology of Cladocera species from Central America based on subfossil assemblages

2016 ◽  
Vol 1 (1S) ◽  
Author(s):  
Marta Wojewódka ◽  
Edyta Zawisza ◽  
Sergio Cohuo ◽  
Laura Macario-González ◽  
Antje Schwalb ◽  
...  
Keyword(s):  
Species Composition ◽  
Central America ◽  
Wide Spectrum ◽  
Great Majority ◽  
Common Species ◽  
Quantitative Composition ◽  
Habitat Conditions ◽  
Mountain Regions ◽  
Different Types ◽  
Lowland Lakes

<p>Cladocera species composition was analyzed in surface sediments of 29 lakes in Central America (Guatemala, El Salvador and Honduras). The material studied was collected with an Ekman grab in autumn 2013 from lakes located in lowland, highland and mountain regions. The study revealed high variability in qualitative and quantitative composition of subfossil Cladocera. A total of 31 Cladocera species (5 planktonic and 26 littoral) were identified, as well as 4 morphotypes that could not be identified (NRR<em> </em>1-4). Planktonic Bosminidae<em> </em>and<em> </em>Daphniidae were the most abundant families. Daphniidae were restricted to water bodies in mountain regions, whereas Bosminidae were widely distributed in lakes with different abiotic conditions. Moreover, Bosminidae species also occurred in highly mineralized waters (&gt; 900 µS cm<sup>-1</sup>). The great majority of the identified Cladocera species belonged to the littoral family Chydoridae. <em>Chydorus </em>cf.<em> sphaericus</em> was the most common species (found in 20 lakes), which probably reflects its tolerance to a wide spectrum of habitat conditions. Cluster analysis discriminated 6 groups of Cladocera species with a high correlation level within groups (≥0.8), which showed different types of correlation with lake characteristics and environmental variables. Canonical correspondence analysis (CCA) showed that altitude and secondly water electrical conductivity were the most important drivers of Cladocera species composition in the region studied. Furthermore, CCA analysis indicated lowland lakes with low water transparency were also characterized by peculiar species assemblages. <strong></strong></p>

scholarly journals Avaliação de Espaços de Desporto Natureza: Paisagem Protegida - Serra de Montejunto

2021 ◽  
Vol 7 (1) ◽  
pp. 34-44
Author(s):  
Carlos Rebelo ◽  
Luís Carvalhinho
Keyword(s):  
Protected Area ◽  
Management Tool ◽  
Different Types ◽  
Sport Activities ◽  
Sports Activities

The protected Area of Serra de Montejunto, as a Protected Area (AP) with potential for nature- based sports and active tourism activities, needs a useful management tool for different types of visitors, similar to the “Nature Sport Charts” existing in other APs in the country. Thus, this research aimed to characterize and evaluate the places for practice of nature-based sports and active tourism activities, namely places of climbing and hiking, using the characterization and evaluation sheets on all previously identified places. The results of this investigation aim to affirm the potential of this AP for sports activities practice in nature and demonstrated the good conditions that exists in practice sites, detecting only the presence of some occasional situations of inadequacy, lack or conservation of equipment. It is concluded that the practice of nature-based sport activities has a great potential in this AP, verifying however the necessity of carrying out strategies that involve: planning, management and maintenance of spaces in order to guarantee conservation and sustainability of the area.

Desmids from ephemeral pools and aerophytic habitats from the Czech Republic

Biologia ◽  
2008 ◽  
Vol 63 (6) ◽  
Author(s):  
Jan Šťastný
Keyword(s):  
Czech Republic ◽  
Species Composition ◽  
Temporary Pools ◽  
Multivariate Statistic ◽  
The Czech Republic ◽  
Statistic Method ◽  
Ephemeral Pools ◽  
Different Types ◽  
Distribution And Ecology ◽  
Wetland Habitats

AbstractThe distribution and ecology of desmids in wetland habitats in the Czech Republic were studied during 2003–2007. Samples were taken also from various aerophytic habitats and temporary pools thet had not been sufficiently studied before. Altogether 110 desmids taxa were found in 31 samples which were ordinated on the basis of their desmid species composition using a multivariate statistic method. The discussion focuses on the most interesting findings and on the factors that influence the distribution of desmids in different types of aerophytic habitats.

scholarly journals Taxonomic structure of local floras in Sidinskiy and Pribaitakskiy steppes (Krasnoyarsk region)

2019 ◽  
Vol 16 ◽  
pp. 00002
Author(s):  
Ekaterina Antipova ◽  
Olga Enulenko
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Taxonomic Structure ◽  
Central European ◽  
Krasnoyarsk Region ◽  
Full Species ◽  
Central Asian ◽  
Different Types ◽  
Sayan Mountain ◽  
Mountain Country

Sidinskiy and Pribaitakskiy steppes are the part of the Minusinsk province of the Altai-Sayan mountain country. On the territory of steppes 12 local floras (LF) were marked and examined using the same method. Studies were carried out according to the recommendations of A.I. Tolmachev (1931): identification of different types of ecotypes of LF, the full species composition of ecotypes (flora inventory), tracking the completeness of detection in LF. In the Sidinskiy steppe the number of families in the LF varies from 25 (Syida) to 43 (v. Alha), in the Pribaitakskiy steppe there is a big difference in the number of families in the LF from 31 (Krasnoyarsk reservoir, Tuba) to 65 (Mayak, Idra). The leading families in the local steppe flora are Asteraceae, Poaceae, Fabaceae. The Fabaceae family ranks third in the top of ten families in 50 % of LF, determining the type of flora as the Mediterranean-Central Asian (Fabaceae-type). Different types of LF allow to determine the type of all steppe flora as mixed, combining features of boreal (Asteraceae-Poaceae- type) and steppes flora (Fabaceae-type) with close ties with Central European floras (Rosaceae-type). 4 distinct levels of species richness are determined: 1 − 496-544; 2 − 408-413; 3 − 319-374; 4 − 279-298 species.

scholarly journals The PROMETHEE Framework for Comparing the Sustainability of Agricultural Systems

Resources ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 74 ◽  
Author(s):  
Byomkesh Talukder ◽  
Keith W. Hipel
Keyword(s):  
Decision Analysis ◽  
Evaluation Method ◽  
Sustainability Indicators ◽  
Preference Ranking ◽  
Analysis Tool ◽  
Agricultural Systems ◽  
Coastal Bangladesh ◽  
Alternative Systems ◽  
Different Types

The PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluation) method is applied to five different types of agricultural systems in coastal Bangladesh in order to rank the alternatives from most to least suitable according to a range of sustainability indicators. More specifically, composite indicators from six sustainability categories—productivity, stability, efficiency, durability, compatibility, and equity—are used for this assessment. The case study demonstrates that PROMETHEE constitutes a flexible MCDA (Multi-Criteria Decision Analysis) tool to investigate the sustainability of agricultural systems, rank the different alternative systems, and provide valuable insights.

Redescription and variation of Micrurus paraensis Cunha & Nascimento 1973 (Serpentes: Elapidae)

Zootaxa ◽  
2007 ◽  
Vol 1470 (1) ◽  
pp. 35-46 ◽  
Author(s):  
DARLAN TAVARES FEITOSA ◽  
ANA LÚCIA DA COSTA PRUDENTE ◽  
ANA CAROLINE DE LIMA
Keyword(s):  
Tropical Rainforest ◽  
Secondary Forest ◽  
Forest Vegetation ◽  
External Morphology ◽  
Mato Grosso

A Neotropical snake, Micrurus paraensis Cunha & Nascimento 1973 from east of Pará state, Brazil is described. This snake is found in secondary forest vegetation and remnants of tropical rainforest in Suriname, and Brazil from Pará, Maranhão, Mato Grosso and Rondônia states. Some authors disagree about the validity of the specific status and they prefer to maintain the subspecific status. The objective of this paper is to enlarge the knowledge about M. paraensis morphology with a description of new systematic characters. External morphology of 64 specimens were analyzed. The species is characterized by the number of black bands on body (12 to 21) and by having a black cap beginning on rostral. The hemipenis is long and bifurcated.

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