scholarly journals EFEITO DA EXPLORAÇÃO NA RIQUEZA FLORÍSTICA E DIVERSIDADE EM UMA FLORESTA ECOTONAL DA REGIÃO NORTE MATO-GROSSENSE

FLORESTA ◽  
2011 ◽  
Vol 41 (2) ◽  
Author(s):  
Chirle Colpini ◽  
Versides Sebastião de Moraes e Silva ◽  
Thelma Shirlen Soares ◽  
José Vespasiano Lisboa Assumpção ◽  
Roberto Chiaranda
Keyword(s):  
Species Diversity ◽  
Floristic Composition ◽  
Wiener Index ◽  
Northern Region ◽  
Floristic Diversity ◽  
Mato Grosso ◽  
Floristic Richness ◽  
Before And After ◽  
Logged Forest ◽  
Southern Amazonia

O objetivo deste estudo foi avaliar as mudanças ocorridas na riqueza e diversidade de espécies em uma floresta ecotonal na região norte mato-grossense. Os dados foram coletados em três ocasiões (2001, antes da exploração, e em 2003 e 2007, após a exploração), em 74 parcelas de 0,25 ha, sendo 69 para estudar a floresta não explorada e 5 para a explorada, com a retirada dos fustes de árvores com diâmetros comercialmente aceitos no mercado. Todos os indivíduos com diâmetro a 1,3 m de altura do solo (Dap) ≥ 17 cm foram mensurados e identificados. A diversidade florística foi avaliada por meio do quociente de mistura de Jentsch e pelo índice de Shannon-Wiener e a equabilidade pelo índice de Pielou. A variação da riqueza e diversidade de espécies antes e após a exploração madeireira foi pequena, o que confirma o baixo impacto da exploração na composição e diversidade das espécies da floresta.Palavras-chave: Diversidade; equabilidade; Amazônia Meridional. AbstractLogging effects on floristic richness and species diversity in an ecotonal forest in northern region of Mato Grosso state, Brazil. The aim of this research was to evaluate changes in relation to floristic richness and species diversity in an ecotonal forest in northern region of Mato Grosso State, Brazil. Data had been collected along three different moments (2001 [before logging], in 2003 and 2007 [after logging]) in 74 0.25-ha plots (69 in unlogged forest and 5 in logged forest). Trees with diameter ≥ 17 cm and 1.3 m height (dbh) had been measured and identified. Floristic diversity was evaluated by Jentsch Coefficient of Mixture and Shannon-Wiener index as well as its equability by Pielou’s Index. There were little variations before and after logging in relation to floristic richness and species diversity, it confirms low impact of exploration on floristic composition and species diversity of the forest.Keywords: Diversity; equability; Southern Amazonia. 

scholarly journals Floristic Diversity in Secondary Forest under Munduruku Indigenous Agroextractivism

2020 ◽  
pp. 33-40
Author(s):  
Patrícia Chaves de Oliveira ◽  
Beatriz Costa de Oliveira Queiroz de Souza ◽  
Elói Gasparin
Keyword(s):  
Indigenous People ◽  
Plant Species ◽  
Natural Regeneration ◽  
Secondary Forest ◽  
Floristic Composition ◽  
Economic Benefits ◽  
Floristic Diversity ◽  
Native Plant ◽  
Wood Fibers ◽  
Floristic Richness

Aims: Knowledge is currently low about composition, richness and abundance of native plant species from secondary forests in traditional communities in the Tapajós River Basin, Western Amazon. These forests are of great importance to indigenous populations being niches of resistance to the advances of monocultures. The objective of this work was to evaluate the floristic composition of a secondary forest with typical indigenous extractive interventions. Study Design: The secondary forest studied located in indigenous Village. This forest had 15 years of natural regeneration and was therefore an anthropized forest, where the indigenous people removed wood, fibers, oils and fruits, thus characterizing the agroextractivism on this environment and a very particular floristic composition always in evolution. Place and Duration of Study: The research was in Santarem city, Pará state, in Ipaupixuna Village (02°32´46” S, 54°20'15” W) between June 2019 to December 2019. Methodology: The research had a descriptive approach for floristic study, but in the same time had a quantitative point of view with the use of regression analysis. The parameters evaluated were: 1. Species abundance, 2. Floristic Richness; 3. Plant diversity measured by the Jentsch Mixing Coefficient; 4. Relations between Circumference & Height of trees. The size of the sampled area was 1 (one) hectare of secondary forest. Results: A high abundance was found for Tapirira guianensis Aubl followed by Buchenavia huberi Ducke and Bellucia grossularioides (L.) Triana. Fabaceae was the family of greatest quantitative expression in this 15-year-old secondary forest in indigenous landscapes followed by Arecaceae. Conclusion: The secondary forest studied of 15 years of natural regeneration and random anthropogenic interventions by agroextractivists activities of Munduruku Indigenous people showed medium floristic richness and low floristic diversity. Interventions to enrich this secondary forest with plant species with high economic potential can bring environmental and economic benefits to these indigenous people.

OBSERVATIONS ON THE VEGETATION OF MATO GROSSO, BRAZIL. V. CHANGES IN THE WOODY SPECIES DIVERSITY OF A FOREST IN THE CERRADO–AMAZONIAN FOREST TRANSITION ZONE AND NOTES ON THE FORESTS OF THE REGION

2012 ◽  
Vol 69 (2) ◽  
pp. 239-253 ◽  
Author(s):  
H. A. Mews ◽  
B. S. Marimon ◽  
J. A. Ratter
Keyword(s):  
Species Diversity ◽  
Floristic Composition ◽  
Woody Species ◽  
Permanent Plots ◽  
Ecological Groups ◽  
Forest Transition ◽  
Mato Grosso ◽  
Amazonian Forest ◽  
Semideciduous Seasonal Forest ◽  
Amazonian Forests

The changes in floristic composition, richness, species diversity and ecological groups of a semideciduous seasonal forest located at 14°49′32″S 52°06′20″W in the Cerrado–Amazonian Forest transition, in the area of Nova Xavantina, eastern Mato Grosso, Brazil, were determined between 2003 and 2008. Sixty permanent plots of 10 × 10 m were established, where the individuals with diameter at breast height (dbh) ≥ 5 cm were recorded and identified. The changes in floristic composition over the period were small and species losses and gains were limited to those of low abundance. The species richness and diversity did not change during this period and observations over a longer period will be necessary to determine whether it is a static community or in a succession towards the relatively nearby Amazonian forests. A review of existing works on the transition forest of Mato Grosso is also given.

Vanilla ribeiroi Hoehne (Orchidaceae: Vanilloideae): notes on taxonomy and geographical distribution

Phytotaxa ◽  
2021 ◽  
Vol 490 (1) ◽  
pp. 99-106
Author(s):  
MATHIAS ERICH ENGELS ◽  
ANA KELLY KOCH
Keyword(s):  
20Th Century ◽  
Geographical Distribution ◽  
Northern Region ◽  
The South ◽  
Mato Grosso ◽  
Elusive Species

Vanilla materials collected during botanical explorations in the Northern region of the Mato Grosso State and the South of Pará State, Brazil were identified as V. ribeiroi. An elusive species that was originally described at the beginning of the 20th century, as part of the Rondon Commission. Vanilla ribeiroi is recircumbscribed on the basis of the original and fresh materials, an epitype is designed, and the distribution of the species is extended.

scholarly journals Research on the Influence of Organic Fertilizing and Mulching on Productivity and Phytodiversity on Oligotrophic Grasslands

2013 ◽  
Vol 70 (1) ◽  
pp. 47-54
Author(s):  
Ágnes BALáZSI ◽  
Ioan ROTAR ◽  
Florin PÄ‚CURAR ◽  
Roxana VIDICAN ◽  
Anca BOGDAN
Keyword(s):  
Dry Matter ◽  
Floristic Composition ◽  
Organic Fertilizers ◽  
Festuca Rubra ◽  
Floristic Diversity ◽  
Dry Matter Yield ◽  
Agrostis Capillaris ◽  
Time Intervals ◽  
Apuseni Mountains ◽  
Grassland Type

Organic fertilizers have an influence on the floristic composition of grasslands. Fertilizing with manure favours the phytodiversity of grasslands. The objective of the study was to follow the influence of mulching and organic fertilizing in small quantities and at various time intervals upon dry matter yield and phytodiversity of Agrostis capillaris L. - Festuca rubra L. grassland type in the Apuseni Mountains. Seven treatments  ( control  ( mowed 1/year ) ; mulch 1/year; mulch 1/year + 5 t/ha manure /year; mulch 1/year + 5 t/ha manure/2 years; mulch 1/year + 10 t/ha manure/2 years; mulch 1/year + 10 t/ha manure/3 years; abandonment )  were evaluated experimentally. Organic fertilizing in low quantities could be a way to maintain the floristic diversity of oligotrophic grasslands in Apuseni Mountains.

scholarly journals The Species Diversity and Structure of The Limited Production Forest in Arui Watershed of Manokwari District of West Papua, Indonesia

2019 ◽  
Vol 11 (2) ◽  
pp. 279-288
Author(s):  
Mahmud Mahmud ◽  
Ambar Kusumandari ◽  
Sudarmadji Sudarmadji ◽  
Nunuk Supriyatno
Keyword(s):  
Species Diversity ◽  
Wiener Index ◽  
Systematic Sampling ◽  
Forest Conversion ◽  
Vegetation Analysis ◽  
Importance Value Index ◽  
Importance Value ◽  
Forestry Sector ◽  
West Papua ◽  
Chisocheton Ceramicus

The detailed causal factors of flood have not been established, whether because of the damage of upper watershed, sedimentation resulting in shallow river, forest conversion, the decrease in abundance and structure or high rainfall. The study aimed at finding out the species diversity and structure of the limited production forest (LPF) from the seedling to the tree stage of Arui watershed in Manokwari district. The species diversity was determined based on Shannon-Wiener index, while vegetation structure was determined based on Importance Value Index. There were totally 92 plots of samples drawn using systematic sampling. The results of vegetation analysis showed that there were 174 species of 43 families with the species diversity of 1.5-1.8 that was categorized as moderate. The four dominant species that were always found in seedling, sapling, pole and tree stages included: Pometia pinnata, Teijsmanniodendron bogoriense, Chisocheton ceramicus, and Horsfieldia irya. The conversion of the LPF into non-forestry sector for the purpose of accelerating development must be reviewed by considering hydrology, land, biodiversity, and social and regional aspects in order to prevent and to reduce flood in the coming days.

scholarly journals Diversity and distribution of nearshore barnacle cyprids in southern California through the 2015–16 El Niño

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7186 ◽  
Author(s):  
Malloree L. Hagerty ◽  
Nathalie Reyns ◽  
Jesús Pineda ◽  
Annette F. Govindarajan
Keyword(s):  
Species Diversity ◽  
El Niño ◽  
Thermal Stratification ◽  
Southern California ◽  
El Nino ◽  
Southern Oscillation ◽  
Balanus Glandula ◽  
Unknown Species ◽  
Before And After ◽  
La Jolla

Abundance, species diversity, and horizontal distributions of barnacle cyprids offshore of La Jolla, southern California were described from May 2014 to August 2016 to determine how the nearshore barnacle larval assemblage changed before, during, and after the 2015–16 El Niño. The entire water column was sampled at five stations located within one km of shore with water depths of 4, 6, 8, 10, and 12 m during 33 cruises that encompassed the time when El Niño conditions impacted the area. Nearshore temperature and thermal stratification was concurrently measured using a CTD. Six identified cyprid species, including Chthamalus fissus, Pollicipes polymerus, Megabalanus rosa, Tetraclita rubescens, Balanus glandula, and B. trigonus, along with four unknown species, were collected in our samples. DNA barcoding was used to confirm identifications in a subset of the larvae. C. fissus was more than eight times more abundant than any other species, and while abundance varied by species, cyprid density was highest for all species except for M. rosa before and after the El Niño event, and lower during the environmental disturbance. There were significant differences in cross-shore distributions among cyprid species, with some located farther offshore than others, along with variability in cross-shore distributions by season. C. fissus cyprids were closest to shore during spring-summer cruises when waters were the most thermally stratified, which supports previous findings that C. fissus cyprids are constrained nearshore when thermal stratification is high. Relative species proportions varied throughout the study, but there was no obvious change in species assemblage or richness associated with El Niño. We speculate that barnacle cyprid species diversity did not increase at our study site during the 2015–16 El Niño, as it has in other areas during previous El Niño Southern Oscillation events, due to the lack of anomalous northward flow throughout the 2015–16 event.

scholarly journals MOSCAS-DAS-FRUTAS (DIPTERA: TEPHRITIDAE), SUAS PLANTAS HOSPEDEIRAS E PARASITOIDES (HYMENOPTERA: BRACONIDAE) NO NORTE DO ESTADO DE MATO GROSSO, BRASIL

Nativa ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 513
Author(s):  
Michele Emily Souza da Silva ◽  
Michel Ariquenes Wochner ◽  
Maria do Socorro Miranda de Sousa ◽  
Marliton Rocha Barreto ◽  
Ricardo Adaime da Silva
Keyword(s):  
Host Plants ◽  
Ceratitis Capitata ◽  
Fruit Fly ◽  
Northern Region ◽  
Fruit Flies ◽  
Economic Losses ◽  
Mato Grosso ◽  
Northern State ◽  
First Time ◽  
Plastic Containers

As moscas-das-frutas estão presentes em todas as regiões do Brasil e são responsáveis por grandes perdas econômicas em pomares comerciais. Este trabalho teve o objetivo de determinar a riqueza de espécies de moscas-das-frutas, suas respectivas plantas hospedeiras e seus parasitoides em municípios da região norte de Mato Grosso. Foram realizadas coletas de frutos de 34 espécies vegetais, de julho de 2016 a novembro de 2017. Os frutos coletados foram acondicionados em recipientes plásticos para observar a emergência das moscas-das-frutas e parasitoides. Foram obtidos 2.709 espécimes de moscas-das-frutas (cinco espécies) e 179 espécimes de parasitoides (três espécies). Este trabalho apresenta os primeiros registros de hospedeiros de moscas-das-frutas para o Mato Grosso. Adicionalmente, os parasitoides Utetes anastrephae Viereck e Asobara anastrephae (Muesebeck) são relatados pela primeira vez no Estado.Palavras-chave: Anastrepha; Ceratitis capitata; Relação tritrófica; Amazônia Meridional. FRUIT FLIES, THEIR HOST PLANTS AND PARASITOIDS IN THE NORTHERN STATE OF MATO GROSSO, BRAZIL ABSTRACT: Fruit flies are present in all regions of Brazil and are responsible for large economic losses in commercial orchards. This work aimed to determine the richness of fruit fly species, their host plants and their parasitoids in municipalities in the northern region of Mato Grosso. We collected fruits from 34 plant species, from July 2016 to November 2017. The collected fruits were packed in plastic containers to observe the emergence of fruit flies and parasitoids. We obtained 2,709 specimens of fruit flies (five species) and 179 specimens of parasitoids (three species). This work presents the first records of hosts of fruit flies for Mato Grosso. In addition, the parasitoids Utetes anastrephae Viereck and Asobara anastrephae (Muesebeck) are reported for the first time in the State.Keywords: Anastrepha; Ceratitis capitata; Tritrophic relationship; Southern Amazon.

scholarly journals An annotated checklist of the psyllids of California (Hemiptera: Psylloidea)

Zootaxa ◽  
2012 ◽  
Vol 3193 (1) ◽  
pp. 1 ◽  
Author(s):  
DIANA M. PERCY ◽  
ALESSANDRA RUNG ◽  
MARK S. HODDLE
Keyword(s):  
Biological Control ◽  
Species Diversity ◽  
North America ◽  
Key Words ◽  
Pest Species ◽  
Floristic Diversity ◽  
Control Programs ◽  
New Synonym ◽  
Annotated Checklist ◽  
Key Words Biogeography

A revised checklist to the species of Psylloidea (Hemiptera) from California is presented, with information on host plantdata, distributions, introduced and pest species, parasites, parasitoids, and predators, and biological control programs. Thelist includes 164 species, of which six are newly recorded. In total, this comprises a 26% increase in the number of speciesrecorded for California since the last published checklist in 1988. Choricymoza Bliven is a new synonym of PhylloplectaRiley, and 10 species previously in Euphalerus Schwarz are recombined under Nyctiphalerus Bliven. California has therichest native psyllid fauna in North America, and the influence of climatic and floristic diversity on this diversificationis considered. Key words: biogeography, host plant, jumping plant lice, species diversity, pest species.

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