Diversity and Distribution of Eulophia in Uganda, East Africa

2013 ◽  
Vol 3 (5) ◽  
pp. 242-260
Author(s):  
Mbeiza Mutekanga Norah

This paper presents a study of the diversity and distribution of the Genus Eulophia, of the family Orchidaceae, in Uganda. Eulophia comprises varied patterned and coloured flowers; is being hybridized and has a high potential in the horticulture industry. Using data from available databases in Makerere University Institute of Environment and Natural Resources ‐ MUIENR (2000), Royal Botanical Gardens, Kew and Leapendemics 1995 and from the herbarium collections, together with information from the field surveys of selected wetlands, a checklist, and distribution map were developed. This allowed for mapping of species distribution ranges and identification of areas of high Eulophia species diversity. The distribution maps of this genus are expected to open new avenues of botanical research, and also to make informed decisions on maintenance, restoration or re‐ introductions in the future. The results show that there are thirty (30) species of Eulophia in Uganda. Their latitude and longitudinal ranges, altitude and habitats where they thrive are presented. Ground truthing for their presence was done with the major focus being in wetlands. From the field surveys, eight species were recorded. The paper concludes by highlighting that despite the rampant alterations in the habitats where Eulophia grows, some still are existent though their numbers are small in each patch. This is a major challenge to continued survival and sustainable management of this species.

2021 ◽  
pp. 0192513X2110380
Author(s):  
José María García-de-Diego ◽  
Livia García-Faroldi

Recent decades have seen an increase in women’s employment rates and an expansion of egalitarian values. Previous studies document the so-called “motherhood penalty,” which makes women’s employment more difficult. Demands for greater shared child-rearing between parents are hindered by a normative climate that supports differentiated gender roles in the family. Using data from the Center for Sociological Research [Centro de Investigaciones Sociológicas] (2018), this study shows that the Spanish population perceives that differentiated social images of motherhood and fatherhood still persist. The “sexual division in parenting” index is proposed and the profile of the individuals who most perceive this sexual division is analyzed. The results show that women and younger people are the most aware of this social normativity that unequally distributes child care, making co-responsibility difficult. The political implications of these results are discussed.


2021 ◽  
Vol 193 (2) ◽  
Author(s):  
Jens Oldeland ◽  
Rasmus Revermann ◽  
Jona Luther-Mosebach ◽  
Tillmann Buttschardt ◽  
Jan R. K. Lehmann

AbstractPlant species that negatively affect their environment by encroachment require constant management and monitoring through field surveys. Drones have been suggested to support field surveyors allowing more accurate mapping with just-in-time aerial imagery. Furthermore, object-based image analysis tools could increase the accuracy of species maps. However, only few studies compare species distribution maps resulting from traditional field surveys and object-based image analysis using drone imagery. We acquired drone imagery for a saltmarsh area (18 ha) on the Hallig Nordstrandischmoor (Germany) with patches of Elymus athericus, a tall grass which encroaches higher parts of saltmarshes. A field survey was conducted afterwards using the drone orthoimagery as a baseline. We used object-based image analysis (OBIA) to segment CIR imagery into polygons which were classified into eight land cover classes. Finally, we compared polygons of the field-based and OBIA-based maps visually and for location, area, and overlap before and after post-processing. OBIA-based classification yielded good results (kappa = 0.937) and agreed in general with the field-based maps (field = 6.29 ha, drone = 6.22 ha with E. athericus dominance). Post-processing revealed 0.31 ha of misclassified polygons, which were often related to water runnels or shadows, leaving 5.91 ha of E. athericus cover. Overlap of both polygon maps was only 70% resulting from many small patches identified where E. athericus was absent. In sum, drones can greatly support field surveys in monitoring of plant species by allowing for accurate species maps and just-in-time captured very-high-resolution imagery.


2021 ◽  
pp. 089124322110012
Author(s):  
Meir Yaish ◽  
Hadas Mandel ◽  
Tali Kristal

The economic shutdown and national lockdown following the outbreak of COVID-19 have increased demand for unpaid work at home, particularly among families with children, and reduced demand for paid work. Concurrently, the share of the workforce that has relocated its workplace to home has also increased. In this article, we examine the consequences of these processes for the allocation of time among paid work, housework, and care work for men and women in Israel. Using data on 2,027 Israeli adults whom we followed since the first week of March (before the spread of COVID-19), we focus on the effect of the second lockdown in Israel (in September) on the gender division of both paid and unpaid work. We find that as demand for housework caused by the lockdown increases, women—especially with children—increase their housework much more than men do, particularly when they work from home. The consequences of work from home and other flexible work arrangements for gender inequality within the family are discussed.


2003 ◽  
Vol 24 (2) ◽  
pp. 155-184 ◽  
Author(s):  
Carolyn A. Kapinus ◽  
Michael P. Johnson

Using data from a 1980 national sample of married men and women, the analysis examines the utility of the family life cycle concept, employing as dependent variables constructs from Johnson’s conceptualization of commitment. They argue, in disagreement with two classic critiques of the family life cycle concept, that the predictive power of family life cycle is, for many dependent variables, quite independent of age or length of marriage. Their analyses demonstrate that, when using dependent variables one would expect to be related to the presence and ages of children, family life cycle remains a useful predictive tool.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 352-352
Author(s):  
Athena Koumoutzis ◽  
Kelly Cichy

Abstract Adult children are at risk of emotional strain when parental caregiving needs emerge. Pearlin’s Stress Process Model (1990) and caregiver studies suggest minority caregivers report lower subjective caregiving burden, however, few studies simultaneously consider both the stresses and rewards of caregiving. Using data from Wave II of the Family Exchange Study (N = 243), we examine racial differences in midlife adults’ perceptions (i.e., stress and rewards) of assisting their parents with activities of daily living (ADLs) and the associations between perceptions of ADL assistance and emotional well-being among adults who help their parents with ADLs. Compared to non-minority caregivers (M = 4.18, SD = 0.91), minority caregivers (M = 4.45, SD = 0.84) found it more rewarding to help their mother (t(314) = -2.54, p < .05), whereas non-minority caregivers (M = 2.25, SD = .1.27) found it more stressful to help their father than did minority caregivers (M = 1.64, SD = 0.99), t(162) = 3.01, p < .01). After controlling for demographics and ADL needs, linear regression analyses revealed that the stress of helping parents predicted depression (F(6, 189) = 5.30, p < .001) and race moderated the association (p < .01); the association was only significant for minority caregivers (p < .05). Implications will be discussed.


Phytotaxa ◽  
2021 ◽  
Vol 522 (1) ◽  
pp. 1-14
Author(s):  
JANEJAREE INUTHAI ◽  
SAHUT CHANTANAORRAPINT ◽  
RUI-LIANG ZHU

An account of the Drepanolejeunea subgenus Rhaphidolejeunea in Thailand has been updated based on herbarium specimens and recent collections from field surveys. Five species of Drepanolejeunea, i.e. Drepanolejeunea commutata, D. fleischeri, D. siamensis, D. spicata, and D. yunnanensis are recognized. Of these, Drepanolejeunea commutata, D. fleischeri, and D. yunnanensis are newly reported for Thailand. A key to species, descriptions, distribution ranges and illustrations of each species are provided. The ecology and geographical distribution of the species are noted. Additionally, Drepanolejeunea longicruris is excluded from the country.


Zootaxa ◽  
2017 ◽  
Vol 4358 (2) ◽  
pp. 271 ◽  
Author(s):  
VIRIDIANA LIZARDO ◽  
FEDERICO ESCOBAR ◽  
OCTAVIO ROJAS-SOTO

In this study, we systematized available distribution data, obtained from biological databases and relevant literature, for Mexican species belonging to the tribe Phanaeini. The main objectives were to provide an overall description of the distribution records in biological collections, to detect potential sampling biases, to describe the seasonality of collections and to obtain species distribution models using the Desktop GARP algorithm. A total of 5,562 records, corresponding to 32 species in Mexico, were compiled, including the recently described Phanaeus zoque Moctezuma & Halffter, 2017. This compilation includes 784 unique collection records at 325 localities. These records were mainly distributed along the Trans-Mexican Volcanic Belt, the Sierra Madre Oriental and Sierra Madre Occidental mountain ranges and throughout the states of Chiapas and Veracruz. The Mexican High Plateau, the state of Tlaxcala and the Yucatan Peninsula are lacking in records. Distribution maps were created for species of three genera (Phanaeus MacLeay, 1819, Coprophanaeus Olsoufieff, 1924, and Sulcophanaeus Olsoufieff, 1924) and for 29 species present in Mexico. These species distributions are largely delimited by geomorphological features and vegetation types and coincide with expert descriptions of this tribe; some species show expanded distribution ranges. These maps provide a starting point for further analyses, the planning of future field studies, and the verification of possible new species in the Mexican territory. 


2018 ◽  
Vol 151 (1) ◽  
pp. 130-141 ◽  
Author(s):  
Rafael G. Barbosa-Silva ◽  
Marcelo Trovó ◽  
Gustavo Martinelli ◽  
Rafaela Campostrini Forzza

Background and aims – As “islands in the sky” of northern South America, the isolated ecosystems of the Pantepui province include a distinct flora with high levels of endemism and which are ancestral areas for many angiosperm lineages. About one fifth of Pantepui angiosperm species are distributed in Poales, a highly diverse angiosperm order.Methods – Recent field trips were carried out on two Brazilian tepuis, by foot and helicopter. Herbarium collections were consulted and compared with the proposed new species. Key results – Four new species of Poales, three Navia Schult. & Schult.f. (Bromeliaceae) and one Paepalanthus Mart. (Eriocaulaceae) were found. Descriptions, illustrations, and distribution maps of the new species, as well as an identification key to Brazilian Navia species, are provided.


Lankesteriana ◽  
2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Jader Oslim Caetano ◽  
Randi Raddatz ◽  
Juliane L. Schmitt ◽  
Carlos R. Schlemper ◽  
Leonardo R.S. Guimarães

In 2013, Caetano and colleagues published two lists of the Orchidaceae of the Municipality of Benedito Novo, Santa Catarina, totalling 99 species. Between January 2014 and September 2016, other field trips were made and new species were found in the region. Thus, in this paper an updated checklist of the Orchidaceae of Benedito Novo is presented based on herbarium collections and field surveys. A total of 184 species distributed in 66 genera are registered, comprising about 35% of the species and 60% of the genera cited for Santa Catarina. The richest genera are Acianthera Scheidw. (18 species), Pabstiella Brieger & Senghas (14), Epidendrum L., Gomesa R.Br., and Maxillaria Ruiz & Pav. (13 each). We also proposed a new combination and a lectotypification in the genus Pabstiella. 


2018 ◽  
Vol 39 (2) ◽  
pp. 252-259 ◽  
Author(s):  
Ben Wielstra ◽  
Daniele Canestrelli ◽  
Milena Cvijanović ◽  
Mathieu Denoël ◽  
Anna Fijarczyk ◽  
...  

Abstract The ‘smooth newt’, the taxon traditionally referred to as Lissotriton vulgaris, consists of multiple morphologically distinct taxa. Given the uncertainty concerning the validity and rank of these taxa, L. vulgaris sensu lato has often been treated as a single, polytypic species. A recent study, driven by genetic data, proposed to recognize five species, L. graecus, L. kosswigi, L. lantzi, L. schmidtleri and a more restricted L. vulgaris. The Carpathian newt L. montandoni was confirmed to be a closely related sister species. We propose to refer to this collective of six Lissotriton species as the smooth newt or Lissotriton vulgaris species complex. Guided by comprehensive genomic data from throughout the range of the smooth newt species complex we 1) delineate the distribution ranges, 2) provide a distribution database, and 3) produce distribution maps according to the format of the New Atlas of Amphibians and Reptiles of Europe, for the six constituent species. This allows us to 4) highlight regions where more research is needed to determine the position of contact zones.


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