scholarly journals Floristic composition and dispersal syndromes in Araucaria Forest remnants in the municipality of Colombo, Paraná state, Brazil

Check List ◽  
2015 ◽  
Vol 11 (5) ◽  
pp. 1771 ◽  
Author(s):  
Rafael Fernando da Silva Possete ◽  
Sandra Bos Mikich ◽  
Gerdt Guenther Hatschbach ◽  
Osmar Dos Santos Ribas ◽  
Dieter Liebsch
Keyword(s):  
Endangered Species ◽  
Biodiversity Conservation ◽  
Floristic Composition ◽  
Life Forms ◽  
Species Occurrence ◽  
Araucaria Forest ◽  
Dispersal Syndromes ◽  
Forest Remnants

This study was conducted in Araucaria Forest remnants in the municipality of Colombo, eastern Paraná state, Brazil. Data on species occurrence, life forms and dispersal syndromes were collected once a week along a 9 km transect, revealing the presence of 512 species among trees (n = 135), shrubs (n = 121), herbs (n = 157), climbers (n = 70), epiphytes (n = 24) and hemiparasites (n = 5). Of 469 species classified according to dispersal syndromes, 42.4% were zoochoric, 33.6% autochoric and 23.8% anemochoric. The high richness observed, the highest among similar studies previously conducted in the Araucaria Forest, along with the occurrence of endangered species of trees (and mammals), indicates that the study area is an important remnant for biodiversity conservation.

scholarly journals Floristic composition of the Montane Forest in the Almadina-Barro Preto axis, Southern Bahia, Brazil

2014 ◽  
Vol 14 (1) ◽  
Author(s):  
Macielle Macedo Coelho ◽  
André Márcio Amorim
Keyword(s):  
Species Richness ◽  
Tropical Forests ◽  
Atlantic Forest ◽  
Floristic Composition ◽  
Woody Species ◽  
Life Forms ◽  
Montane Forest ◽  
Forest Remnants ◽  
Southern Bahia ◽  
Arboreal Habit

The aim of this study is to survey the angiosperms of two montane forest remnants in the southern Bahia, Brazil: Corcovado (SCO) and Pedra Lascada (SPL). Both fragments are located in the municipality of Almadina and Barro Preto, respectively, and are 18 km distant from each other. We sampled 899 species of angiosperms distributed in 437 genera and 116 families. The SCO was the richest area with 678 species, distributed in 367 genera and 100 families. SPL showed 466 species in 269 genera and 88 families. The percentage of species identified was 85.8% and of this total, 37.7% are endemic to the Atlantic Forest, 11.2% are endemic to southern Bahia and northern Espírito Santo and 7% are disjunct between the Atlantic Forest and Amazon. The remaining percentages (44.3%) were of species widely distributed. The richest families in the two areas were Orchidaceae (10%), Rubiaceae (7%), Bromeliaceae (5.5%), Melastomataceae (4.2%) and Poaceae (4%). The richest genera were Psychotria (2%),Piper (1.8%), Ocotea (1.6%),Vriesea (1.5%) and Peperomia (1.4%). More than half of the recorded species showed non-arboreal habit, regarding life forms documented. That comes against the assertion that many authors in the tropical forests, where species richness in angiosperms is expected for non-woody species, especially in montane forests. Twelve species have been identified as new, but seven others already described from collections previously obtained in these two areas. Orchidaceae, Rubiaceae, Poaceae and Bromeliaceae showed significant richness in this study these families are commonly reported as the richest in other inventories in the Atlantic Forest in southern Bahia reinforcing their importance to the regional flora. The high levels of richness, endemism, and the growing numbers of new taxonomic discoveries from the SPL and SCO sites indicate the biological importance of these two forest remnants. The implementation of parks or other protected environmental reserves would be essential to the conservation of its species.

scholarly journals Floristic composition and phytogeography of an Araucaria Forest in the Serra da Mantiqueira, Minas Gerais, Brazil

Rodriguésia ◽  
2018 ◽  
Vol 69 (4) ◽  
pp. 1909-1925 ◽  
Author(s):  
Daniel S. Santiago ◽  
Ary T. Oliveira Filho ◽  
Luiz Menini Neto ◽  
Fabrício A. Carvalho ◽  
Fátima Regina G. Salimena
Keyword(s):  
Endangered Species ◽  
High Altitude ◽  
Sea Level ◽  
Low Temperatures ◽  
Vascular Plants ◽  
Floristic Composition ◽  
Minas Gerais ◽  
Araucaria Forest ◽  
Minas Gerais State ◽  
Southeastern Region

Abstract The Parque Estadual da Serra do Papagaio (PESP) harbors some unusual fragments of mixed needle-broadleaved forest (MNF) of Minas Gerais state. This study aims to analyze the floristic composition and geographic distribution of the genera represented in the MNF of the PESP. Collections of fertile specimens of vascular plants (excluding epiphytes) were conducted monthly (March 2012-June 2013) in the alluvial and slope areas of MNF in the PESP, in altitudes ranging from 1,650-2,000 m above sea level. The genera were classified into seven phytogeographic groups that were delimited according to their current diversity centers available in the literature. We recorded 310 species belonging to 168 genera and 82 families of vascular plants. The richest families were Asteraceae (49 species), Melastomataceae (33 species) and Rubiaceae (16 species). We observed the presence of species often found in montane and high montane forests of southeastern region, besides of temperate genera, showing that low temperatures caused by high altitude influence the floristic composition of the area. The high richness found denotes the importance of altitude areas for diversity in Atlantic Forest and highlights the biogeographic importance of the region for presenting an unusual phytophysiognomy in the state with endemic and endangered species.

scholarly journals Inventory of ferns and lycophytes within forest fragments of Araucaria in southern Brazil

2018 ◽  
Vol 18 (4) ◽  
Author(s):  
Ivanete Teresinha Mallmann ◽  
Vinícius Leão da Silva ◽  
Jairo Lizandro Schmitt
Keyword(s):  
Life Form ◽  
Species Conservation ◽  
Floristic Composition ◽  
Rio Grande ◽  
Life Forms ◽  
Forest Fragments ◽  
Forest Fragment ◽  
Araucaria Forest ◽  
Floristic Inventory ◽  
Ferns And Lycophytes

Abstract: The Araucaria Forest is a unique plant formation, practically restricted to the Atlantic Forest biome, in the South and Southeast of Brazil. It is immensely fragmented and its area is reduced to a minimum fraction, from 13 to 2% of the original area, due to intense anthropic exploitation. Our study evaluated the richness and floristic composition of ferns and lycophytes within three Araucaria forest fragments, in Rio Grande do Sul, Brazil. For the floristic inventory, a parcel of 1 ha (100x100m) was demarcated inside three fragments, which were classified by size: large (246 ha - H1LF), medium (57 ha - H2MF) and small (5.2 ha - H3SF). Occurring species life forms and preferential substrates up to 4 meters above ground were recorded. In total, 55 species were catalogued, only two of which were lycophytes, distributed in 32 genera and 17 families. Considering the area of fragments, the recorded species richness has decreased, presenting greater numbers in H1LF (48), followed by H2MF (33), and H3SF (29). In the three sites, terrestrial substrate and the hemicryptophyte species life form predominated. We observed that one hectare of a larger forest fragment presented 65% more species than that of a smaller one, considering that the smaller fragment total area represents only 2% of the larger forest's area. On the other hand, one hectare of the smaller fragment contributed 17% to fern and lycophyte species conservation occurring in Brazilian Araucaria Forests, and 8% to the state of Rio Grande do Sul's total richness. The diverse heterogeneity and species composition grants floristic identity to each of the studied forest interiors. Our results highlight the need to include the botanical parameters here analyzed in management, conservation degree evaluation, and maintenance of Araucaria Forests plant biodiversity.

scholarly journals Research on a Biodiversity Conservation Value Assessment Method Based on Habitat Suitability of Species: A Case Study in Gansu Province, China

2021 ◽  
Vol 13 (6) ◽  
pp. 3007
Author(s):  
Xiaojiong Zhao ◽  
Jian Wang ◽  
Junde Su ◽  
Wei Sun ◽  
Haoxian Meng
Keyword(s):  
Ecosystem Services ◽  
Endangered Species ◽  
Biodiversity Conservation ◽  
Gansu Province ◽  
Distribution Area ◽  
Suitable Habitat ◽  
Conservation Value ◽  
Value Assessment ◽  
Rare And Endangered Species ◽  
Rare And Endangered

Quantitative assessment and evaluation of ecological parameters and biodiversity conservation are prime concerns for long-term conservation of rare and endangered species and their associated habitats in any ecological region. In this study, Gansu Province, a biodiversity hotspot, was chosen as the research area. We predicted the distribution patterns of suitable habitats for rare and endangered species. The replacement cost method was adopted to calculate the conservation value of rare and endangered species. The suitable habitat distribution area of rare and endangered wild animals reached 351,607.76 km2 (without overlapping area), while that of plants reached 72,988.12 km2 (without overlapping area). The conservation value of rare and endangered wildlife is US $1670.00 million. The high-value areas are mostly concentrated in the south and north of Gansu Province. The conservation value of rare and endangered wild plants is US $56,920.00 million. The high-value areas are mostly concentrated south of Gansu Province. The conservation value is US $58,590.00 million a year, and its distribution trend is gradually decreasing from northeast to southwest, with the highest in the forest area south of Gansu Province, followed by the Qilian Mountain area in the north. These results are of great significance for future improvement of the evaluation index system of ecosystem services and the development of ecosystem services and management strategies.

scholarly journals Genetic diversity in populations of Maytenus dasyclada (Celastraceae) in forest reserves and unprotected Araucaria forest remnants

2017 ◽  
Vol 31 (1) ◽  
pp. 93-101 ◽  
Author(s):  
Manuel Castilhos Reichmann ◽  
Camila Ângela Zanella ◽  
Cláudio Valério Júnior ◽  
Ana Claudia Piovezan Borges ◽  
Tanise Luisa Sausen ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Forest Reserves ◽  
Araucaria Forest ◽  
Forest Remnants

scholarly journals How Bovine Livestock Affects Seed Rain in Subtropical Climate Forest

2019 ◽  
Vol 11 (10) ◽  
pp. 240
Author(s):  
Maureen de Moraes Stefanello ◽  
Ana Paula Moreira Rovedder ◽  
Roselene Marostega Felker ◽  
Matheus Degrandi Gazzola ◽  
Betina Camargo ◽  
...  
Keyword(s):  
Diversity Index ◽  
Morphological Characteristics ◽  
Floristic Composition ◽  
Seed Rain ◽  
Subtropical Climate ◽  
Floristic Similarity ◽  
Management Regime ◽  
Pampa Biome ◽  
Forest Remnants ◽  
History Of

Seed rainfall may be one of the mechanisms most impacted by livestock production in forest remnants. The trampling and cattle grazing alter dynamics, structure and floristic composition of the forest. The present work characterized the seed rainin forest remnants and the possible impacts of the presence and the management regime with different cattle stocks in the Pampa biome, southern region of Brazil. We compared three areas in Seasonal Forest remnants with a management history of 43 years: cattle exclusion area (A1); area with a cattle stock of 0.5 ua ha-1 (A2); and area with cattle stock of 1.0 ua ha-1 (A3). The seed rain was collected quarterly in 16 collectors (1 × 1 m²) per area for 24 months. The seeds were counted and identified according to external morphological characteristics, habit and dispersion syndrome. Shannon diversity index, submitted to the Hutcheson test, Pielou evenness, expected diversity and floristic similarity were determined. The results indicated that the impacts caused by livestock to seed rain were more significant in A3 where a quantitative reduction in the number of seeds was observed, probably due to the low number of plant individuals that make up the community.

scholarly journals The contribution of forest remnants within industrial area to threatened mammal conservation: A case study in liquefied natural gas industry in Bontang, Indonesia

2019 ◽  
Vol 20 (8) ◽  
Author(s):  
SUDRAJAT ◽  
MINTORO DWI PUTRO
Keyword(s):  
Natural Gas ◽  
Biodiversity Conservation ◽  
Industrial Area ◽  
Forest Fragments ◽  
Gas Industry ◽  
East Kalimantan ◽  
Forest Remnants ◽  
Natural Gas Industry ◽  
Mammal Conservation

Abstract. Sudrajat, Putro MD. 2019. The contribution of forest remnants within industrial area to endemic and threatened mammal conservation: A case study in liquefied natural gas industry in Bontang, East Kalimantan, Indonesia. Biodiversitas 20: 2257-2265. Tropical forests harbor high biodiversity, while natural protected area is one of the approaches for biodiversity conservation. However, the conversion of natural forests for various purposes has caused forest fragmentation. A novel strategy of conservation is proposed in the form of protected area within industrial estate as the contribution of industrial company in biodiversity conservation. The purpose of this study is to document the endemic and threatened species of mammals existing at two forest fragments with extent of 15 ha and 7.4 ha in a natural gas refinery industry area in Bontang, East Kalimantan and their potential as biodiversity conservation areas. Mammals were monitored at the two forest fragments through direct surveys, trace identification, mist nets, and camera traps. The results of the study show that according to IUCN Red List there were 23 mammal species (belonging to 18 genera, 15 families and six orders) of conservation concern found within the forest fragments including one species is under Critically Endangered, two are Endangered, four are Vulnerable, ten are Least Concern, one is Near Threatened and three are Not Evaluated. Four of those species are considered as endemic, namely Bornean orangutan, Pongo pygmaeus morio, Müller’s gibbon, Hylobates muelleri, Proboscis monkey, Nasalis larvatus and East Bornean slow loris, Nycticebus menagensis. These findings suggest that forest fragments located in the environment of industrial estate can be considered as important conservation strategy if they are well preserved and maintained.

scholarly journals ENVIRONMENTAL CHANGE AND LANDUSE SCENARIOS UNDER CHANGING CLIMATES: THE EXPERIENCE IN THE UPPER CROSS RIVER REGION, NIGERIA

2020 ◽  
Vol 6 (11) ◽  
pp. 32-42
Author(s):  
Innocent A. Ugbong ◽  
Ivan V. Budagov
Keyword(s):  
Environmental Changes ◽  
Floristic Composition ◽  
Life Forms ◽  
Soil Conditions ◽  
Land Use Patterns ◽  
Cross River ◽  
Cross River State ◽  
Use Patterns ◽  
River Region ◽  
Descriptive Approach

This paper seeks to show that due to changing climates, there are salient marginal Sahelian conditions (conditions of aridity) emerging on the Northern fringes of Cross River State, a state that is geographical positioned in the southern rainforest belt of Nigeria. The paper adopts a simple descriptive approach and shows the distinct characteristics of this zone, in terms of floristic composition and edaphic and geomorphic structures under changing conditions. Some relationships are established between environmental variables like health, water supply and crop-yield on one hand, and climatic variation, floral life-forms and soil conditions on the other. The changing land use patterns relative to environmental changes are also examined. The paper concludes with a look at current and future adaption strategies to these climate-induced conditions.

scholarly journals Assessment of the Vegetation State of Several Under-exploited Agrostis tenuis - Festuca

2012 ◽  
Vol 69 (1) ◽  
Author(s):  
Ionel SAMFIRA ◽  
Veronica SÄ‚RÄ‚TEANU ◽  
Marius BOLDEA ◽  
Branko CUPINA
Keyword(s):  
Floristic Composition ◽  
Life Forms ◽  
Soil Reaction ◽  
Adjacent Area ◽  
Agrostis Tenuis ◽  
Economic Climate ◽  
Hill Area ◽  
Grazing Period ◽  
The Hill ◽  
Pastoral Value

The study of the grassland type Agrostis tenuis - Festuca rupicola from Valea Bistrei - Otelul Rosu has been necessary due to the great surfaces covered with grasslands from the studied area and due to the social and economic climate characterised by the orientation of the rural community from the adjacent area to agriculture after the failure of the former intensive industry.There have been studied two grassland plots of about 500 hectares, res pectively Gai and Scărisoara. The purpose of this research is to assess the state of the biodiversity and pastoral value of four Agrostis tenuis - Festuca rupicola  grasslands from the hill area. Also, there has been analysed the floristic composition and a series of ecological indexes, respectively humidity, soil reaction, temperature, light, and nitrogen. Other aspects taken in account were the life-forms spectres. The analysed grasslands are placed on Bistrei Valey, in the perimeter of the locality OÅ£elul Roșu, Caraș -Severin County. The researches have been developed during 2010-2012 period. The average elevation level in the studied area is 268 square meters. The soil from the studied area is brown type, with a pH comprised between 4.79 and 5.31. The rainfall amount is about 700 mm and the average temperature is 10 Celsius degrees. The management mode of these grasslands is extensive, the grazing period being 150 days per year. The analysed surfaces are characterised by the lack of the maintenance works, there being present erosion phenomena. The method used for the vegetation analysis is the linear point quadrate method (Daget et Poissonet, 1971), the data being used for the calculation of different ecological indexes and pastoral value. The pastoral value of the species is low in both plots due to the great contribution of the low economical values of the most of the species from the analysed grasslands.

scholarly journals Floristic dissimilarity and indicator species of Araucaria Forest and ecotones.

FLORESTA ◽  
2015 ◽  
Vol 45 (3) ◽  
pp. 497
Author(s):  
Silvana Manfredi ◽  
Juliano Pereira Gomes ◽  
Paula Iaschitzki Ferreira ◽  
Roseli Lopes da Costa Bortoluzzi ◽  
Adelar Mantovani
Keyword(s):  
Indicator Species ◽  
Forest Succession ◽  
Floristic Composition ◽  
Permanent Plots ◽  
Forest Fragments ◽  
Ecological Processes ◽  
Araucaria Forest ◽  
Native Grassland ◽  
Wetland Succession ◽  
Forest Boundary

A busca do conhecimento sobre a expansão das florestas em relação aos ecossistemas associados (campestre e banhado) aborda a presença de fatores ambientais como o fogo e o pastejo, frequentemente descritos como determinantes dos processos ecológicos favoráveis à dinâmica sucessional. Dessa forma, objetivou-se verificar se existem diferenças na composição florística do interior de fragmentos florestais e entre setores de transição floresta-campo e floresta-banhado, bem como identificar espécies indicadoras para cada um desses ambientes. O estudo foi realizado em fragmentos florestais situados nos municípios de Bom Jardim da Serra e Lages (Coxilha Rica), onde foram instaladas duas parcelas permanentes de 50x50 m, subdivididas em setores de 10x10 m, categorizados em três setores: Floresta Ombrófila Mista, transição floresta x campo e transição floresta x banhado. Há dissimilaridade florística entre os fragmentos florestais dos locais e, também, entre os setores de transição (ecótonos). As espécies indicadoras dos ecótonos estão vinculadas ao estágio inicial da sucessão florestal, apresentando potencial para colonização do campo, podendo atuar no início do processo de expansão da fronteira florestal.AbstractFloristic dissimilarity and indicator species of Araucaria Forest and ecotones. The search for knowledge about the expansion of forests in relation to associated ecosystems (native grassland and wetland) addresses the presence of environmental factors such as fire and grazing, often described as determinants of ecological processes in favor of succession dynamics. The objective here was to verify if there are differences among the floristic composition of the interior of forest fragments and transition sectors of forest-native grassland and forest-wetland, as well as to identify indicator species for each of these environments. The research was conducted in forest fragments located in the municipalities of Bom Jardim da Serra and Lages (Coxilha Rica), SC, where we installed two permanent plots of 50x50 m, subdivided into sectors of 10x10 m categorized into three sectors: Araucaria Forest, forest transition x native grassland and forest x wetland transition. There is floristic dissimilarity between the local forest fragments and also between the transition areas (ecotones). The indicator species of ecotones are linked to early stages of forest succession, with potential for colonization of the field, they can operate in the start of the expansion of the forest boundary process.Keywords: Araucaria Forest; native grassland; wetland; succession.

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