scholarly journals An annotated checklist of birds of Paraje Tres Cerros, Corrientes province, Argentina

Check List ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 415-443
Author(s):  
Juan Manuel Fernandez ◽  
Luz Thomann ◽  
Blas Fandiño ◽  
Rodrigo Cajade ◽  
Alejandra Hernando

We provide an updated checklist of birds of a unique landscape in northeastern Argentina, which is characterized by three isolated, rocky outcrops and their surrounding agroecosystem. We recorded 188 bird species, including nine that are globally or nationally threatened. We highlight the presence of several grassland-specialist birds of conservation concern. Of the species recorded, 80.6% are residents and 17.7% are migrants. The heterogeneity of the landscape and its structural complexity accounts the existence of a high avian species diversity, which includes both generalists and specialists. This study confirms the conservation value of this ecosystem, due both to the rocky outcrops and grassland matrix. Grasslands are one of the most threatened biomes in the world.

2020 ◽  
Vol 13 (1) ◽  
pp. 65-80
Author(s):  
Endihnew Tessfa ◽  
Dessalegn Ejigu ◽  
Gezahegn Degife ◽  
Nega Tassie

  Birds are important bio-indicators and provide various ecosystem services including pollination, dispersal, and pest control. However, they are threatened by habitat loss, fragmentation, and degradation. Study on species diversity, relative abundance, and habitat associations of avifauna were conducted in Tara Gedam Monastery forest patch and associated habitats from July 2016 to April 2017. Stratified random sampling approach was used to classify habitats and select sampling plots based on vegetation type. Consequently, forest, bushland, farmland, and plantation habitats were used for data collection. Point count and line transect methods were used to collect data, and Shannon-Weiner and Simpson’s diversity indices were used to estimate the avian species diversity. One-way ANOVA was conducted to compare avian relative abundance and richness among the different habitat types. A total of 98 species of birds belonging to 14 orders and 41 families were recorded in Tara Gedam Monastery forest and associated habitats. Eighty-seven resident bird species and eleven Palearctic migrants were identified of which seven species are endemic to Ethiopia and Eritrea. The highest avian diversity (H’=4.23) was recorded in the study area during the wet season.The highest species similarity index (SI=0.47) was recorded between forest and bushland habitats during the wet season, while the lowest similarity index (SI=0.07) was found between bush-land and farmland habitats during the dry season. Species richness and relative abundance of bird species varied between the wet and dry seasons. Besides birds, Tara Gedam Monastery forest supports a large number of other wild fauna species, which indicates the area’s potential to support biodiversity. Therefore, there must be a collaborative work between the monastery and different governmental and non-governmental organizations to protect the entire ecosystem in order to conserve the whole biodiversity of the area in general and the avifauna in particular.


2008 ◽  
Vol 105 (46) ◽  
pp. 17852-17854 ◽  
Author(s):  
Jai Ranganathan ◽  
R. J. Ranjit Daniels ◽  
M. D. Subash Chandran ◽  
Paul R. Ehrlich ◽  
Gretchen C. Daily

With intensifying demands for food and biofuels, a critical threat to biodiversity is agricultural expansion into native tropical ecosystems. Tropical agriculture, particularly intensive agriculture, often supports few native organisms, and consequently has been largely overlooked in conservation planning; yet, recent work in the Neotropics demonstrates that tropical agriculture with certain features can support significant biodiversity, decades after conversion to farmland. It remains unknown whether this conservation value can be sustained for centuries to millennia. Here, we quantify the bird diversity affiliated with agricultural systems in southwest India, a region continuously cultivated for >2,000 years. We show that arecanut palm (Areca catechu) production systems retain 90% of the bird species associated with regional native forest. Two factors promote this high conservation value. First, the system involves intercropping with multiple, usually woody, understory species and, thus, has high vertical structural complexity that is positively correlated with bird species richness. Second, the system encompasses nearby forests, where large quantities of leaf litter are extracted for mulch. The preservation of these forests on productive land traces back to their value in supplying inputs to arecanut cultivation. The long-term biodiversity value of an agricultural ecosystem has not been documented in South and Southeast Asia. Our findings open a new conservation opportunity for this imperiled region that may well extend to other crops. Some of these working lands may be able to sustain native species over long-time scales, indicating that conservation investments in agriculture today could pay off for people and for nature.


2018 ◽  
Author(s):  
Trymore Muderere ◽  
Amon Murwira ◽  
Paradzayi Tagwireyi ◽  
Ngoni Chiweshe

AbstractIn this study, we tested whether urban landscape structure influences avian species diversity using data for Harare, Zimbabwe. Initially, we quantified landscape structure using fragmentation indices derived from a 5m resolution SPOT 5 imagery. We collected bird species data through field-based observations of birds at 35 locations occurring in five land use/land cover types. We quantified avian species diversity using Barger-Parker, Menhinick and Simpson’s Indices. Regression analysis was used to determine the nature and strength of the relationships between avian species diversity and fragmentation indices. Results indicated that woodland specialist avian species are negatively associated with landscape fragmentation, while grassland specialist and generalist avian species positively responded to patch edge density, habitat patch size and shape complexity. Overall, our results suggest that changes in landscape structure due to expansion of built-up areas in tropical urban areas may influence avian species diversity.


Check List ◽  
2012 ◽  
Vol 8 (2) ◽  
pp. 197 ◽  
Author(s):  
Mahmoud S. Abdel-Dayem

Endemic species are usually not very widespread in their distribution, but are only found in a particular region and nowhere else in the world. Because of this, they are of great conservation concern. A checklist of the endemic carabid beetles of Egypt was compiled and updated from published and unpublished records including long-term surveys. As far as can be ascertained, there are 39 valid carabid species and subspecies from 28 genera that are endemic to Egypt including Sinai. These represent about 16.3% of the total carabid fauna recorded from the country, and belong to five subfamilies: Brachininae, Cicindelinae, Harpalinae, Scaritinae, and Trechinae. I provide notes about type localities, depositories and distribution.


Zootaxa ◽  
2021 ◽  
Vol 5069 (1) ◽  
pp. 1-80
Author(s):  
LUCIE OŠLEJŠKOVÁ ◽  
JÁN KRIŠTOFÍK ◽  
ALFRÉD TRNKA ◽  
OLDŘICH SYCHRA

This checklist includes taxa of chewing lice from published records, old collections, and recently collected material from birds and mammals in Slovakia. Data from established collections correspond to five different periods: (1) 1925–1939, collection of Karel Pfleger; (2) 1946–1978, collection of František Balát; (3) 1974–1985, collection of Vladimír Straka; (4) 1997–2012, collection of Ján Krištofík; and (5) 2008–2019, a collection made by the authors of this paper. A total of 255 species of feather lice—67 amblyceran species in 22 genera of families Laemobothriidae, Menoponidae and Ricinidae, and 188 ischnoceran species in 54 genera of the family Philopteridae—and 366 host-louse associations are listed from 171 bird species in 21 orders. In addition, eight species of chewing lice in five genera of the family Trichodectidae are listed from eight species of mammals. Species of chewing lice are reported from about 240 different locations throughout the territory of Slovakia. Also, 43 species of lice and 20 host-louse associations for Slovakia, as well as four host-louse associations for the world, are included as new records. A host-louse list of recorded species is also given.  


2018 ◽  
Vol 58 ◽  
pp. 30
Author(s):  
João Paulo Gava Just ◽  
Jonas Rafael Rodrigues Rosoni ◽  
Rafael Spilere Romagna ◽  
Jairo José Zocche

Coastal lagoons and their surrounding habitats often harbour high biodiversity and some of the most threatened ecosystems in the world. However, in the Neotropics the biodiversity is often poorly described, lacking even inventories of species which therefore limits the assessment of threats and the stablishment of efficient conservation measures. We present here lists of bird species recorded at ten sites along the under-studied coastal lagoons of southern Santa Catarina, Brazil, collected mainly from October 2012 to March 2018. We present quantitative data for endemic and threatened species, identify migratory status and highlight distributional novelties. In total, we recorded 229 species encompassing 63 families, including twelve species of conservation concern, 11 endemic to the Atlantic Forest or Pampas zoogeographical provinces and 38 migrants. We provide new records of seven rare species in Santa Catarina (Larus atlanticus, Calidris pusilla, Aramides ypecaha, Bubo virginianus, Limnornis curvirostris, Phacellodomus ferrugineigula and Pseudocolopteryx flaviventris) and report the first evidence of occurrence of Schoeniophylax phryganophilus for the State. Based on our findings, we discuss the regional diversity and conservation of the avifauna.


2020 ◽  
Vol 48 (1) ◽  
pp. 67-79
Author(s):  
Humayra Mahmud ◽  
Animesh Goshe Ayon ◽  
Md Anwarul Islam

Study on bird species diversity, distribution and relative abundance is important for conservation efforts in local and national scale. However, bird diversity, distribution and relative abundance are little known in Karamjal Forest Station, Sundarbans. Ecological appraisal of bird species diversity, distribution and relative abundance of the avifauna of the Karamjal Forest Station were conducted from June 2015 to April 2016. A total of 156 bird species was recorded during the study period. Of which, one was globally Critically Endangered, Gyps bengalensis and two were Near Threatened i.e., Gyps himalayensis and Lusciniapectardens. The distribution of bird among habitat type was significantly different (f =22.069, p<0.05, df = 2). Walking trail was inhabited the highest species diversity (H’= 3.77) with the highest evenness (J=0.823) while water body was recorded the lowest species diversity (H’= 2.93) with the lowest evenness (J=0.804), it could have a relation to the availability of food items in the habitat. This study showed that despite huge tourist pressures this forest station harbour diverse avian species and thus this area should be managed in order to enhance the population of avian species. Bangladesh J. Zool. 48(1): 67-79, 2020


Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 514
Author(s):  
Zonglei Liang ◽  
Christopher H. Dietrich ◽  
Wu Dai

Xestocephalus Van Duzee is among the most common and widespread genera of Cicadellidae in the temperate and tropical regions of the world. In the present study, 205 specimens of the genus Xestocephalus were collected in Thailand, whereas only a single species of the genus was recorded previously using Malaise trap field sampling, studied by comparative morphology. Seventeen species were recognized, including twelve new species: X. binarius sp. nov., X. chrysanthemum sp. nov., X. cowboyocreus sp. nov., X. densprint sp. nov., X. dimiprocessus sp. nov., X. exproiecturus sp. nov., X. gracilus sp. nov., X. limpidissimus sp. nov., X. malleus sp. nov., X. nonattribus sp. nov., X. recipinams sp. nov., and X. tenusis Liang sp. nov. Four species were recorded in Thailand for the first time: Xestocephalus abyssinicus Heller and Linnavuori, Xestocephalus asper Linnavuori, Xestocephalus ishidae Matsumura, and Xestocephalus toroensis Matsumura. Detailed morphological descriptions of all 17 species are given; photographs of external habitus and male genitalia of the species from Thailand are provided. A checklist of species of the genus is also given, and a key to all Thailand Xestocephalus species is also provided.


Author(s):  
Yvonne R. Schumm ◽  
Dimitris Bakaloudis ◽  
Christos Barboutis ◽  
Jacopo G. Cecere ◽  
Cyril Eraud ◽  
...  

AbstractDiseases can play a role in species decline. Among them, haemosporidian parasites, vector-transmitted protozoan parasites, are known to constitute a risk for different avian species. However, the magnitude of haemosporidian infection in wild columbiform birds, including strongly decreasing European turtle doves, is largely unknown. We examined the prevalence and diversity of haemosporidian parasites Plasmodium, Leucocytozoon and subgenera Haemoproteus and Parahaemoproteus in six species of the order Columbiformes during breeding season and migration by applying nested PCR, one-step multiplex PCR assay and microscopy. We detected infections in 109 of the 259 screened individuals (42%), including 15 distinct haemosporidian mitochondrial cytochrome b lineages, representing five H. (Haemoproteus), two H. (Parahaemoproteus), five Leucocytozoon and three Plasmodium lineages. Five of these lineages have never been described before. We discriminated between single and mixed infections and determined host species-specific prevalence for each parasite genus. Observed differences among sampled host species are discussed with reference to behavioural characteristics, including nesting and migration strategy. Our results support previous suggestions that migratory birds have a higher prevalence and diversity of blood parasites than resident or short-distance migratory species. A phylogenetic reconstruction provided evidence for H. (Haemoproteus) as well as H. (Parahaemoproteus) infections in columbiform birds. Based on microscopic examination, we quantified parasitemia, indicating the probability of negative effects on the host. This study provides a large-scale baseline description of haemosporidian infections of wild birds belonging to the order Columbiformes sampled in the northern hemisphere. The results enable the monitoring of future changes in parasite transmission areas, distribution and diversity associated with global change, posing a potential risk for declining avian species as the European turtle dove.


2008 ◽  
Vol 112 (5) ◽  
pp. 2064-2073 ◽  
Author(s):  
Rick Clawges ◽  
Kerri Vierling ◽  
Lee Vierling ◽  
Eric Rowell

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