scholarly journals Two new localities of the endangered fish Systomus martenstyni (Kottelat & Pethiyagoda, 1991) (Teleostei: Cyprinidae) found in Sri Lanka

Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1622
Author(s):  
Shalini Lalanthika Rajakaruna ◽  
Gajaba Ellepola ◽  
Thilanka Gunaratne ◽  
Sumedha Madawala ◽  
Kithsiri Ranawana
Keyword(s):  
Sri Lanka ◽  
River Basin ◽  
Habitat Loss ◽  
Habitat Quality ◽  
Endangered Fish ◽  
Quality Degradation ◽  
New Localities ◽  
Conservation Actions ◽  
Two Populations ◽  
Effective Conservation

Systomus martenstyni is an endemic and endangered fish of Sri Lanka. This species was earlier known to be restricted to the Amban Ganga River basin. Recently two populations of S. martenstyni were located in two major tributaries of River Mahaweli: Loggal Oya and Badulu Oya in the Uva province of Sri Lanka. These new populations are relatively small and are facing the threat of habitat quality degradation and habitat loss. Effective conservation actions should be undertaken to conserve this endangered fish species.

scholarly journals Ecology of Mylesinus paucisquamatus Jégu & Santos, 1988, an endangered fish species from the rio Tocantins basin

2016 ◽  
Vol 14 (2) ◽  
Author(s):  
Oscar B. Vitorino Júnior ◽  
Carlos S. Agostinho ◽  
Fernando M. Pelicice
Keyword(s):  
Environmental Changes ◽  
Feeding Habits ◽  
Reproductive Activity ◽  
Dry Season ◽  
Threatened Fish ◽  
Ecological Traits ◽  
Endangered Fish ◽  
Conservation Actions ◽  
Intensive Sampling ◽  
Effective Conservation

ABSTRACT Mylesinus paucisquamatus is a threatened fish endemic to the rio Tocantins basin, with little information about its natural history. Using monitoring data obtained between 1998 and 2009, we investigated the spatial distribution, feeding and reproduction of this species in a long stretch of the middle-upper rio Tocantins. Eighty-one individuals were captured over a decade of intensive sampling. In addition, we recorded the species in only 13 out of 35 sites, particularly in the Tocantins and Paranã rivers. Most individuals were captured alone, while the remaining formed small groups. These results indicate that this fish is rheophilic and rare. We recorded seasonal variation in fish abundance, with higher values during the dry season, indicating seasonal movements. The species is herbivorous and specialized in the consumption of plants attached to substrates, particularly bryophytes. We also observed seasonality in reproduction, since reproductive activity increased during the early dry season. These ecological traits, e.g. , rarity, rheophilic and specialized feeding habits, indicates that M. paucisquamatus is vulnerable to environmental changes, particularly river damming. Considering that three large dams currently regulate and fragment this section of the rio Tocantins, the persistence of this species is jeopardized, demanding effective conservation actions.

JENIS BURUNG DI KAMPUS UNIVERSITAS TANJUNGPURA

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Sutarto Kusuma Indra ◽  
Kustiati Kustiati ◽  
Rafdinal Rafdinal
Keyword(s):  
Habitat Loss ◽  
Human Life ◽  
Natural Habitat ◽  
Bird Species ◽  
Residential Land ◽  
Encounter Rates ◽  
Passer Montanus ◽  
Quality Degradation

Quality degradation, modification, and habitat loss are significant threats to bird species. The natural habitat of birds has been modified into residential land and facilities to meet the needs of human life as happened at Tanjungpura University. This study aims to determine of birds species at Tanjungpura University. Observations were carried out from January to March 2019. The method used in collecting the data from bird was “Encounter rates” which was conducted in the morning starting at 6 – 9 am and at 3 - 6 pm. The data obtained were analyzed with the formula of simple abundance scale and frequency of attendance. The birds found at Universitas Tanjungpura are 28 species classified into 23 genera, 17 families, and seven orders. Birds found to have an abundance order scale are classified into abundant, general, frequent and, unusual categories. Birds included in the abundant category are Collocalia fuciphaga and Passer montanus. The types of bird foods at Tanjungpura University consist of frugivore, insectivore, granivore, herbivore, carnivore, piscivore, omnivore, molluscivore, and nectarivore. The value of attendance frequency have range between 10-100%. The bird species with highest frequency of attendance’s value is Passer montanus, Pycnonotus aurigaster, Pycnonotus goiavier, Collocalia fuciphaga, and Anthreptes malacensis.

scholarly journals Soil loss risk and habitat quality in streams of a meso-scale river basin

2007 ◽  
Vol 64 (4) ◽  
pp. 336-343 ◽  
Author(s):  
Alexandre Marco da Silva ◽  
Lilian Casatti ◽  
Clayton Alcarde Alvares ◽  
Aline Maria Leite ◽  
Luiz Antonio Martinelli ◽  
...  
Keyword(s):  
River Basin ◽  
Habitat Quality ◽  
Urban Areas ◽  
Riparian Vegetation ◽  
Soil Loss ◽  
Buffer Strips ◽  
Physical Damage ◽  
High Chemical ◽  
Sediment Delivery ◽  
Chemical Purity

Soil loss expectation and possible relationships among soil erosion, riparian vegetation and water quality were studied in the São José dos Dourados River basin, State of São Paulo, Brazil. Through Geographic Information System (GIS) resources and technology, Soil Loss Expectation (SLE) data obtained using the Universal Soil Loss Equation (USLE) model were analyzed. For the whole catchment area and for the 30 m buffer strips of the streams of 22 randomly selected catchments, the predominant land use and habitat quality were studied. Owing mainly to the high soil erodibility, the river basin is highly susceptible to erosive processes. Habitat quality analyses revealed that the superficial water from the catchments is not chemically impacted but suffers physical damage. A high chemical purity is observed since there are no urban areas along the catchments. The water is physically poor because of high rates of sediment delivery and the almost nonexistence of riparian vegetation.

scholarly journals Language barriers in global bird conservation

2021 ◽  
Author(s):  
Pablo Jose Negret ◽  
Scott Consaul Atkinson ◽  
Bradley Woodworth ◽  
Marina Corella Tor ◽  
James Allan ◽  
...  
Keyword(s):  
Scientific Information ◽  
Bird Species ◽  
Language Barriers ◽  
Language Diversity ◽  
Bird Conservation ◽  
Western Asia ◽  
Conservation Actions ◽  
Official Languages ◽  
Multiple Languages ◽  
Effective Conservation

Multiple languages being spoken within a species distribution can impede communication among conservation stakeholders, the compilation of scientific information, and the development of effective conservation actions. Here, we investigate the number of official languages spoken within the distributions of 10,863 bird species to identify which ones might be particularly affected by consequences of language barriers. We show that 1587 species have 10 languages or more spoken within their distributions. Threatened, migratory and wide-ranging species have especially many languages spoken within their distribution. Particularly high numbers of species with many languages within their distribution are found in Eastern Europe, Russia and central and western Asia. Global conservation efforts would benefit from implementing guidelines to overcome language barriers, especially in regions with high species and language diversity.

scholarly journals New record of Barrio’s Frog, Insuetophrynus acarpicus Barrio, 1970 (Anura, Rhinodermatidae), in Los Ríos region, Chile

Check List ◽  
2020 ◽  
Vol 16 (6) ◽  
pp. 1519-1522
Author(s):  
Patricio Contreras Bravo ◽  
Fernando Bustos Véliz ◽  
Ignacio Rodriguez-Jorquera
Keyword(s):  
River Basin ◽  
New Record ◽  
National Park ◽  
The World ◽  
Conservation Actions ◽  
A Site

A new record of the Endangered, Chilean endemic Insuetophrynus acarpicus (Barrio 1970) is reported from Alerce Costero National Park, Chile. This species of frog is one of the most threatened anurans in the world, and, consequently, any new record of this species is highly important for assessing its known distribution and proposing urgent conservation actions. The new record is the first known site in the Chaihuín river basin, 15 km northwest of a site described by Segura in 2017. The new record fills a gap of the known distribution of I. acarpicus.

scholarly journals Finding of rare species of plats in the southern part of the Sinyukha river basin

2021 ◽  
pp. 37-45
Author(s):  
K. V. Zhulenko
Keyword(s):  
Protected Areas ◽  
River Basin ◽  
Plant Species ◽  
Current Distribution ◽  
Rare Species ◽  
Rare Plant ◽  
Anthropogenic Pressure ◽  
Natural Habitats ◽  
Rare Plant Species ◽  
New Localities

Introduction. The Sinyukha river basin, in particular its southern part, is an area with a high level of anthropogenic pressure and a significant level of agricultural development (the proportion of agricultural land is more than 80%), with fragmented natural habitats. Detailed chorological study is needed to supplement the pattern of the distribution of rare plant species, to develop measures for their conservation, to optimize the existing network of protected areas in the region.Рurpose of the study isto analyze the current distribution and describe new finds of some rare plant species in the southern part of the Sinyukha river basin.Methods. The research was conducted in April-June 2021. We surveyed the area of the Sinyukha river valley from the village of Kalamazovo (Vilshansky district, Kirovohrad region) to its confluence with the Southern Bug River in Pervomaisk (Mykolayiv region), as well as – the valleys of its tributaries – Chorny Tashlyk, Malyi Tashlyk and Sukhyi Tashlyk. When locating a rare species, the plants were photographed and georeferenced at a point with GPS-navigator. Species cover is given according to the Broun-Blanquet scale. The distribution maps were performed by free QGIS software.Results.We revealed new and confirmed known localities of 20 rare species:Adonis vernalis, Asplenium septentrionale, Astragalus dasyanthus, A. odessanus, Bellevalia sarmatica, Clematis integrifolia, Crocus reticulatus, Dianthus hypanicus, Ephedra distachya, Hyacinthella leucophaea, Iris pontica, Iris pumila, Ornithogalum boucheanum, Pulsatilla pratensis, Primula veris, Sedum borissovae, Stipa capillata, S. lessingiana, S. pennata, Tulipa hypanica. Among the 20 identified rare species one has the category VU (Vulnerable) in the IUCN red list and belongs to the list of Resolution 6 of the Berne Convention; three species are narrowly local endemics of the Dnieper Upland; 11 are listed in the Red Book of Ukraine (5 of them have the status vulnerable, 1 – rare, 5 – insufficiently known); 5 species are regionally rare in Kirovohrad and 8 – in Mykolayiv regions. Most of the revealed species have a cover less than 5%. Only 9 of the 20 registered rare species characterized by more than five localities within the studied area. Originality. New localities of 20 rare species of plants of different levels of protection have been revealed. Prospects for conservation valuableof their habitats are offered.Conclusion. We have identified a significant number of new localities of rare plant species that are not covered by proper protection. This indicates the need for more detailed chorological research to elucidate the current distribution of rare species and the creation of new protected areas. Key words:rare species; threat category; red lists; natural habitats; chorology.

scholarly journals Implications of Spatially Variable Costs and Habitat Conversion Risk in Landscape-Scale Conservation Planning

2018 ◽  
Vol 9 (2) ◽  
pp. 402-414 ◽  
Author(s):  
Max Post van der Burg ◽  
Neil Chartier ◽  
Ryan Drum
Keyword(s):  
Spatial Variation ◽  
Habitat Loss ◽  
Tallgrass Prairie ◽  
Habitat Conservation ◽  
Optimal Placement ◽  
Management Actions ◽  
The North ◽  
Conservation Costs ◽  
Conservation Actions

Abstract “Strategic habitat conservation” refers to a process used by the U.S. Fish and Wildlife Service to develop cost-efficient strategies for conserving wildlife populations and their habitats. Strategic habitat conservation focuses on resolving uncertainties surrounding habitat conservation to meet specific wildlife population objectives (i.e., targets) and developing tools to guide where conservation actions should be focused on the landscape. Although there are examples of using optimization models to highlight where conservation should be delivered, such methods often do not explicitly account for spatial variation in the costs of conservation actions. Furthermore, many planning approaches assume that habitat protection is a preferred option, but they do not assess its value relative to other actions, such as restoration. We developed a case study to assess the implications of accounting for and ignoring spatial variation in conservation costs in optimizing conservation targets. We included assumptions about habitat loss to determine the extent to which protection or restoration would be necessary to meet an established population target. Our case study focused on optimal placement of grassland protection or restoration actions to influence bobolink Dolichonyx oryzivorus populations in the tallgrass prairie ecoregion of the north central United States. Our results show that not accounting for spatially variable costs doubled or tripled the cost of meeting the population target. Furthermore, our results suggest that one should not assume that protecting existing habitat is always a preferred option. Rather, our results show that the balance between protection and restoration can be influenced by a combination of desired targets, assumptions about habitat loss, and the relative cost of the two actions. Our analysis also points out how difficult it may be to reach targets, given the expense to meet them. We suggest that a full accounting of expected costs and benefits will help to guide development of viable management actions and meaningful conservation plans.

Cutthroat Trout: Evolutionary Biology and Taxonomy

2018 ◽  
Keyword(s):  
River Basin ◽  
Evolutionary Biology ◽  
Colorado River ◽  
Cutthroat Trout ◽  
Green River ◽  
South Platte River ◽  
Continental Divide ◽  
San Juan River ◽  
Conservation Actions ◽  
Platte River Basin

<em>Abstract</em>.—Despite major declines in distribution and abundance of Cutthroat Trout <em>Oncorhynchus clarkii </em>across their native range since European settlement, substantial morphological and genetic diversity remains. For example, recent molecular investigations revealed the presence of six discrete lineages of Cutthroat Trout native to the Southern Rocky Mountains rather than four as previously thought. These include the previously recognized Yellowfin Cutthroat Trout <em>O. c. macdonaldi </em>(extinct) and Rio Grande Cutthroat Trout <em>O. c. virginalis</em>, as well as the true native of the South Platte River basin, located east of the Continental Divide, which we continue to refer to as Greenback Cutthroat Trout. Within the range of Colorado River Cutthroat Trout <em>O. c. pleuriticus</em>, which is located west of the Continental Divide, we highlight two divergent clades that historically occupied upstream, coldwater reaches of the Green River and Colorado River basins. Both are also found outside their historical ranges as well, due to extensive, mostly undocumented stocking in the early 20th century that served to conceal native diversity in the region. An additional clade closely aligned with those two Colorado River groups historically occupied the San Juan River basin. In this chapter, we discuss both molecular and morphomeristic evidence that indicates distinct lineages are aligned with major drainage basins, information that guides ongoing conservation actions.

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