Pub Date : 2020-12-22DOI: 10.35513/21658005.2020.2.1
B. Miri, N. Moeini-Naghadeh
Some thrips species are known as predators of eggs, exist as the inactive stages of mites, and can be tiny, especially phytophagous thrips. This study aimed at evaluating the population fluctuation and species diversity of predatory thrips in wheat fields of Eyvan county (Ilam province, Iran) in the year 2016. Thrips specimens were collected and identified by weekly sampling during wheat growth stages (from early April to late June). Wheat bushes were shaken on a white dish. Finally, microscopic slides were prepared and all samples were enumerated. The population fluctuation of predatory thrips was calculated. In this study, six species of predatory thrips belonging to three genera were identified. Amongst them, Aeolothrips intermedius Bagnall (family Aeolothripidae) was the dominant species in both irrigated and rainfed wheat fields accounting for 72.43% and 50.85% of all species, respectively. Biodiversity indices were calculated using the number of species and their relative abundance. Shannon diversity, Simpson’s, Margalef’’s and species richness indices were 1.76, 0.86, 1.25 and 1, respectively. The highest biodiversity was in rainfed fields and during the wheat flowering stage, and the highest Shannon-Wiener evenness index was also in rainfed fields and at the ripening stage. The richness of thrips in rainfed wheat fields during the stem elongation stage was higher than in other wheat stages. Correlation of the density of predatory thrips with temperature and humidity showed a significantly positive correlation with temperature.
{"title":"On collection of predatory thrips (Insecta: Thysanoptera) in wheat fields","authors":"B. Miri, N. Moeini-Naghadeh","doi":"10.35513/21658005.2020.2.1","DOIUrl":"https://doi.org/10.35513/21658005.2020.2.1","url":null,"abstract":"Some thrips species are known as predators of eggs, exist as the inactive stages of mites, and can be tiny, especially phytophagous thrips. This study aimed at evaluating the population fluctuation and species diversity of predatory thrips in wheat fields of Eyvan county (Ilam province, Iran) in the year 2016. Thrips specimens were collected and identified by weekly sampling during wheat growth stages (from early April to late June). Wheat bushes were shaken on a white dish. Finally, microscopic slides were prepared and all samples were enumerated. The population fluctuation of predatory thrips was calculated. In this study, six species of predatory thrips belonging to three genera were identified. Amongst them, Aeolothrips intermedius Bagnall (family Aeolothripidae) was the dominant species in both irrigated and rainfed wheat fields accounting for 72.43% and 50.85% of all species, respectively. Biodiversity indices were calculated using the number of species and their relative abundance. Shannon diversity, Simpson’s, Margalef’’s and species richness indices were 1.76, 0.86, 1.25 and 1, respectively. The highest biodiversity was in rainfed fields and during the wheat flowering stage, and the highest Shannon-Wiener evenness index was also in rainfed fields and at the ripening stage. The richness of thrips in rainfed wheat fields during the stem elongation stage was higher than in other wheat stages. Correlation of the density of predatory thrips with temperature and humidity showed a significantly positive correlation with temperature.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45377478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-22DOI: 10.35513/21658005.2020.2.6
V. D. Hegde, S. Yadav
The earlier compiled collections of Tenebrionidae held at the North Eastern Regional Centre, Zoological Survey of India, Shillong were identified. The present study reports five species of Tenebrionidae belonging to three genera under three tribes of two subfamilies. The collected and identified Tenebrionid species are reported from the Mizoram state for the first time. The synonyms, distribution and images are also provided.
{"title":"Record of darkling beetles (Coleoptera: Tenebrionidae) from Mizoram state, India","authors":"V. D. Hegde, S. Yadav","doi":"10.35513/21658005.2020.2.6","DOIUrl":"https://doi.org/10.35513/21658005.2020.2.6","url":null,"abstract":"The earlier compiled collections of Tenebrionidae held at the North Eastern Regional Centre, Zoological Survey of India, Shillong were identified. The present study reports five species of Tenebrionidae belonging to three genera under three tribes of two subfamilies. The collected and identified Tenebrionid species are reported from the Mizoram state for the first time. The synonyms, distribution and images are also provided.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48126656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-05DOI: 10.35513/21658005.2020.1.1
Amin Kahalerras, Nedjwa Boucenna, Zinette Bensakhri, Mouhamed Boukhamza, M. Houhamdi
Body size has important effects on reproductive behaviour and fitness of species. Although body size is usually advantageous for territorial species, its direct implication in determining the behaviour of non-territorial species is still not well understood. Here we investigate the reproductive behaviour of a non-territorial damselfly Chalcolestes viridis in northeast Algeria and assess the effects of body size on different behavioural and ecological components. The diurnal pattern of abundance depended on temperature and hour of the day, showing a peak within temperatures ranging between 23° and 26°C. Copulation and oviposition duration were not correlated to body size and did not change across the season. In addition, the species oviposited eggs in wooden substrates that were 150–200 cm above the water surface, and this vertical stratification was negatively correlated to branch diameter and water depth, positively correlated with water width and velocity, but was not correlated with body size and season. Our study suggests that body size might not be very relevant in shaping certain aspects of reproductive behaviour and habitat selection in non-territorial damselflies, but could influence other fitness components.
{"title":"No evidence of body size effects on the reproductive behaviour of a non-territorial damselfly Chalcolestes viridis","authors":"Amin Kahalerras, Nedjwa Boucenna, Zinette Bensakhri, Mouhamed Boukhamza, M. Houhamdi","doi":"10.35513/21658005.2020.1.1","DOIUrl":"https://doi.org/10.35513/21658005.2020.1.1","url":null,"abstract":"Body size has important effects on reproductive behaviour and fitness of species. Although body size is usually advantageous for territorial species, its direct implication in determining the behaviour of non-territorial species is still not well understood. Here we investigate the reproductive behaviour of a non-territorial damselfly Chalcolestes viridis in northeast Algeria and assess the effects of body size on different behavioural and ecological components. The diurnal pattern of abundance depended on temperature and hour of the day, showing a peak within temperatures ranging between 23° and 26°C. Copulation and oviposition duration were not correlated to body size and did not change across the season. In addition, the species oviposited eggs in wooden substrates that were 150–200 cm above the water surface, and this vertical stratification was negatively correlated to branch diameter and water depth, positively correlated with water width and velocity, but was not correlated with body size and season. Our study suggests that body size might not be very relevant in shaping certain aspects of reproductive behaviour and habitat selection in non-territorial damselflies, but could influence other fitness components.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":"1 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48357257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-05DOI: 10.35513/21658005.2020.1.4
T. Teofilova
A lack of sufficient data about ground beetles in maquis and maquis-like habitats in the whole Mediterranean region prompted this study. It brings new data to the knowledge of Carabidae species from Balkan pseudomaquis habitats in Bulgaria and reveals some patterns of species composition from zoogeographic and ecological points of view. Fieldwork was carried out in the period 5 April 2002 – 11 January 2004. A total of 305 specimens from 52 species were found, including two Balkan endemics and one Tertiary relict. These species belong to 23 genera and 12 tribes. Dromius quadrimaculatus (Linnaeus, 1758) and Harpalus fuscicornis Ménétriés, 1832 are new for the Bulgarian Struma Valley. Another 13 species are new for the Pirin Mountains. The richest tribe was Harpalini (21 species), followed by Carabini (6 species), Amarini and Sphodrini (5 species each). The most species-rich genus was Harpalus (13 species). Zoogeographical analysis showed that Euroasiatic and Mediterranean complexes were most prevalent. Xerothermic conditions in the habitats studied were also confirmed by the prevalence of the mesoxerophilous carabids. These habitats occur only locally in Bulgaria and support specific carabid assemblages. Knowledge about their diversity could be a keystone for the conservation of all target species living in these limited areas and encompassed by the adjacent Natura 2000 zones.
{"title":"Pseudomaquises in SW Bulgaria as a habitat for the ground beetles (Coleoptera: Carabidae)","authors":"T. Teofilova","doi":"10.35513/21658005.2020.1.4","DOIUrl":"https://doi.org/10.35513/21658005.2020.1.4","url":null,"abstract":"A lack of sufficient data about ground beetles in maquis and maquis-like habitats in the whole Mediterranean region prompted this study. It brings new data to the knowledge of Carabidae species from Balkan pseudomaquis habitats in Bulgaria and reveals some patterns of species composition from zoogeographic and ecological points of view. Fieldwork was carried out in the period 5 April 2002 – 11 January 2004. A total of 305 specimens from 52 species were found, including two Balkan endemics and one Tertiary relict. These species belong to 23 genera and 12 tribes. Dromius quadrimaculatus (Linnaeus, 1758) and Harpalus fuscicornis Ménétriés, 1832 are new for the Bulgarian Struma Valley. Another 13 species are new for the Pirin Mountains. The richest tribe was Harpalini (21 species), followed by Carabini (6 species), Amarini and Sphodrini (5 species each). The most species-rich genus was Harpalus (13 species). Zoogeographical analysis showed that Euroasiatic and Mediterranean complexes were most prevalent. Xerothermic conditions in the habitats studied were also confirmed by the prevalence of the mesoxerophilous carabids. These habitats occur only locally in Bulgaria and support specific carabid assemblages. Knowledge about their diversity could be a keystone for the conservation of all target species living in these limited areas and encompassed by the adjacent Natura 2000 zones.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":"30 1","pages":"27-36"},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48707222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-05DOI: 10.35513/21658005.2020.1.2
C. Battisti, V. Ferri, L. Luiselli, G. Amori
In wind-farm impact assessments, it is useful to know the level of uncertainty that characterizes some key variables used to assess the sensitivity to risk in species of conservation concern. Here, we have introduced the use of the Shannon entropy as a value of ecological uncertainty of the prediction of the risk assessment index, obtained from two ecological traits (flight altitude and flight type). We based our evaluation of risk sensitivity on sampling of three common raptor birds (Gyps fulvus, Falco tinnunculus, Buteo buteo) all co-occurring in a wind farm landscape (central Italy). As to flight altitude, Gyps fulvus prefers the flight altitude category > 300 m, Falco tinnunculus categorises closer to the ground and Buteo does not show a clear preference for any particular flight altitude category. As regards the flight type, Gyps fulvus showed significant preference for circular and thermal flight patterns, Falco tinnunculus for rapid horizontal/vertical flight patterns, while Buteo was found to prefer constant directions and circular and thermal flight patterns. Multiplication of the scores associated with these eco-behavioural traits by the number of recorded occurrences allowed estimation of risk sensitivity used to compute the risk assessment index. We normalized the partial scores of the risk associated with these traits with H' values, thus obtaining more reliable speciesspecific normalized risk indices. The greater the entropy, the greater the level of uncertainty associated with it, and the lower the reliability of the risk index. Therefore, the entropy associated with flight behaviour diversity (altitude or type) could be a proxy for assessing uncertainty in wind power impact assessment. We think that normalizing indices of risk by including a measure of uncertainty can support decision makers in bird conservation and wind farm management.
{"title":"Introducing ecological uncertainty in risk sensitivity indices: the case of wind farm impact on birds","authors":"C. Battisti, V. Ferri, L. Luiselli, G. Amori","doi":"10.35513/21658005.2020.1.2","DOIUrl":"https://doi.org/10.35513/21658005.2020.1.2","url":null,"abstract":"In wind-farm impact assessments, it is useful to know the level of uncertainty that characterizes some key variables used to assess the sensitivity to risk in species of conservation concern. Here, we have introduced the use of the Shannon entropy as a value of ecological uncertainty of the prediction of the risk assessment index, obtained from two ecological traits (flight altitude and flight type). We based our evaluation of risk sensitivity on sampling of three common raptor birds (Gyps fulvus, Falco tinnunculus, Buteo buteo) all co-occurring in a wind farm landscape (central Italy). As to flight altitude, Gyps fulvus prefers the flight altitude category > 300 m, Falco tinnunculus categorises closer to the ground and Buteo does not show a clear preference for any particular flight altitude category. As regards the flight type, Gyps fulvus showed significant preference for circular and thermal flight patterns, Falco tinnunculus for rapid horizontal/vertical flight patterns, while Buteo was found to prefer constant directions and circular and thermal flight patterns. Multiplication of the scores associated with these eco-behavioural traits by the number of recorded occurrences allowed estimation of risk sensitivity used to compute the risk assessment index. We normalized the partial scores of the risk associated with these traits with H' values, thus obtaining more reliable speciesspecific normalized risk indices. The greater the entropy, the greater the level of uncertainty associated with it, and the lower the reliability of the risk index. Therefore, the entropy associated with flight behaviour diversity (altitude or type) could be a proxy for assessing uncertainty in wind power impact assessment. We think that normalizing indices of risk by including a measure of uncertainty can support decision makers in bird conservation and wind farm management.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":"30 1","pages":"11-16"},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42041642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-05DOI: 10.35513/21658005.2020.1.8
M. Naumova
The subterranean fauna of both natural and artificial caves in Albania remains poorly studied. Cave colonisation can be clarified by investigating the same process in artificial underground sites. The existence of such a process can be judged by the composition of specific vertebrate and invertebrate species in every site. The biospeleological study carried out in an artificial cave in Përmet in June 2019 provided the following results: two bat species, i.e. Greater horseshoe bat Rhinolophus ferrumequinum (Schreber, 1774) and Mouse-eared bat Myotis myotis species group, probably M. blythii (Tomes, 1857) were observed, a specimen of the Balkan stream frog Rana graeca Boulenger, 1891, representing the first amphibian record for the Albanian cave, was discovered deep inside the cave, nine invertebrate species were found (7 spiders, 1 harvestman and 1 moth), with three of the spider species, i.e. Ceratinella brevis (Wider, 1834), Hogna radiata (Latreille, 1817) and Trachyzelotes barbatus (L. Koch, 1866), being the first records for Balkan caves. All recorded species, except Myotis blythii/myotis (both were previously known), are new to the study area. The total number of species recorded in this site, including the data available in literature, has increased to 29. This high number of species shows that artificial caves, including military installations, represent biodiversity hotspots, comparable to natural underground sites and demand much more attention and further investigations.
阿尔巴尼亚天然洞穴和人工洞穴的地下动物群研究仍然很少。洞穴殖民化可以通过在人工地下遗址中调查同样的过程来澄清。这种过程的存在可以通过每个地点特定脊椎动物和无脊椎动物的组成来判断。2019年6月，在Përmet的一个人工洞穴中进行的生物地质研究提供了以下结果：观察到了两种蝙蝠，即大马蹄蝙蝠Rhinolophus ferromequinum（Schreber，1774）和鼠耳蝙蝠Myotis Myotis物种群，可能是M.blythii（Tomes，1857），一种巴尔干溪蛙Rana graeca Boulenger的标本，1891，在洞穴深处发现了阿尔巴尼亚洞穴的第一个两栖动物记录，发现了九种无脊椎动物（7只蜘蛛、1只收割者和1只蛾），其中三种蜘蛛，即Ceratinella brevis（Wider，1834）、Hogna radiata（Latreille，1817）和Trachyzelotes barbatus（L.Koch，1866），是巴尔干洞穴的第一记录。所有记录的物种，除了白氏肌炎/肌炎（两者都是以前已知的），都是研究区域的新物种。该遗址记录的物种总数，包括文献中的数据，已增至29种。如此多的物种表明，包括军事设施在内的人工洞穴是生物多样性的热点，与天然地下遗址相当，需要更多的关注和进一步的调查。
{"title":"Biospeleological notes on fauna in an artificial cave in Përmet (Albania) importance of former military installations for biodiversity","authors":"M. Naumova","doi":"10.35513/21658005.2020.1.8","DOIUrl":"https://doi.org/10.35513/21658005.2020.1.8","url":null,"abstract":"The subterranean fauna of both natural and artificial caves in Albania remains poorly studied. Cave colonisation can be clarified by investigating the same process in artificial underground sites. The existence of such a process can be judged by the composition of specific vertebrate and invertebrate species in every site. The biospeleological study carried out in an artificial cave in Përmet in June 2019 provided the following results: two bat species, i.e. Greater horseshoe bat Rhinolophus ferrumequinum (Schreber, 1774) and Mouse-eared bat Myotis myotis species group, probably M. blythii (Tomes, 1857) were observed, a specimen of the Balkan stream frog Rana graeca Boulenger, 1891, representing the first amphibian record for the Albanian cave, was discovered deep inside the cave, nine invertebrate species were found (7 spiders, 1 harvestman and 1 moth), with three of the spider species, i.e. Ceratinella brevis (Wider, 1834), Hogna radiata (Latreille, 1817) and Trachyzelotes barbatus (L. Koch, 1866), being the first records for Balkan caves. All recorded species, except Myotis blythii/myotis (both were previously known), are new to the study area. The total number of species recorded in this site, including the data available in literature, has increased to 29. This high number of species shows that artificial caves, including military installations, represent biodiversity hotspots, comparable to natural underground sites and demand much more attention and further investigations.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47520855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-05DOI: 10.35513/21658005.2020.1.3
J. Birzaks
Hydrometeorological conditions are important determinants of the distribution, abundance and growth of Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) parr and smolt in rivers. Long-term monitoring of the temperate zone Salaca River was conducted to investigate long-term changes in water temperature and streamflow and their effects on juvenile Atlantic salmon and sea trout. The average water temperature in the Salaca River was found to increase over time, particularly in autumn, winter and spring. River discharge increased in winter and summer, which was caused by increased precipitation. Goals of our study were: 1) to examine trends in water temperature and discharge in the river, 2) to explore relations between hydrometeorological trends, on the one hand, and abundance, size at age of salmon and sea trout parr and smolt, as well as changes in smolt migration patterns, on the other. This was the first occasion that a study of this type had been carried out in the Baltic Sea basin. In summer, growth of salmon parr in all age groups in the Salaca River was reduced. However, the size of smolt was found to increase. Migration of sea trout smolt in the Salaca River took place earlier, and the end of both salmon and sea trout migration was also observed earlier. The age structure of salmon smolt changed, with the one-yearold age group dominating. Judging from the total numbers of salmon and sea trout smolt in the River Salaca, production of smolt in the river during the monitoring period increased.
{"title":"Climate Change Impact on Salmon (Salmo salar) and Sea Trout (Salmo trutta) in the Salaca River, Latvia","authors":"J. Birzaks","doi":"10.35513/21658005.2020.1.3","DOIUrl":"https://doi.org/10.35513/21658005.2020.1.3","url":null,"abstract":"Hydrometeorological conditions are important determinants of the distribution, abundance and growth of Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) parr and smolt in rivers. Long-term monitoring of the temperate zone Salaca River was conducted to investigate long-term changes in water temperature and streamflow and their effects on juvenile Atlantic salmon and sea trout. The average water temperature in the Salaca River was found to increase over time, particularly in autumn, winter and spring. River discharge increased in winter and summer, which was caused by increased precipitation. Goals of our study were: 1) to examine trends in water temperature and discharge in the river, 2) to explore relations between hydrometeorological trends, on the one hand, and abundance, size at age of salmon and sea trout parr and smolt, as well as changes in smolt migration patterns, on the other. This was the first occasion that a study of this type had been carried out in the Baltic Sea basin. In summer, growth of salmon parr in all age groups in the Salaca River was reduced. However, the size of smolt was found to increase. Migration of sea trout smolt in the Salaca River took place earlier, and the end of both salmon and sea trout migration was also observed earlier. The age structure of salmon smolt changed, with the one-yearold age group dominating. Judging from the total numbers of salmon and sea trout smolt in the River Salaca, production of smolt in the river during the monitoring period increased.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":"1 1","pages":"17-26"},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43763709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-05DOI: 10.35513/21658005.2020.1.9
K. Perzanowski, K. Pędziwiatr, Paulina Konieczna, J. Śmiełowski
The aim of the study was the delineation of migratory corridors migration for large mammals between the Ukrainian Carpathians and the western part of their range in Poland. Potential corridors for the wolf (Canis lupus), brown bear (Ursus arctos), lynx (Lynx lynx), wisent (Bison bonasus), red deer (Cervus elaphus), and wild boar (Sus scrofa) were identified within 534,818 ha with the ArcGIS Corridor Designer software. Corridors of regional importance (42,283 ha in total) and local connections between habitat patches (13,154 ha) were delineated separately according to the least-cost path criterion. We identified 115 critical points where heavy traffic, or the proximity of settlements, could obstruct animal movements. A considerable number of such critical points indicate the urgency for ensuring the functionality of the remaining linkage. The permeability of barriers between habitat patches was determined by ground observations, confirming the presence of target species. The highest proportion of patches estimated by experts as optimal and suboptimal was for wild boar (91%), while the lowest for lynx (52%). The proportion of habitats avoided or useless due to anthropogenic barriers was 34% for lynx, 25% for wisents, and 19% for brown bears.
{"title":"Proposed migration corridors for large mammals in the south-east of Polish Carpathians","authors":"K. Perzanowski, K. Pędziwiatr, Paulina Konieczna, J. Śmiełowski","doi":"10.35513/21658005.2020.1.9","DOIUrl":"https://doi.org/10.35513/21658005.2020.1.9","url":null,"abstract":"The aim of the study was the delineation of migratory corridors migration for large mammals between the Ukrainian Carpathians and the western part of their range in Poland. Potential corridors for the wolf (Canis lupus), brown bear (Ursus arctos), lynx (Lynx lynx), wisent (Bison bonasus), red deer (Cervus elaphus), and wild boar (Sus scrofa) were identified within 534,818 ha with the ArcGIS Corridor Designer software. Corridors of regional importance (42,283 ha in total) and local connections between habitat patches (13,154 ha) were delineated separately according to the least-cost path criterion. We identified 115 critical points where heavy traffic, or the proximity of settlements, could obstruct animal movements. A considerable number of such critical points indicate the urgency for ensuring the functionality of the remaining linkage. The permeability of barriers between habitat patches was determined by ground observations, confirming the presence of target species. The highest proportion of patches estimated by experts as optimal and suboptimal was for wild boar (91%), while the lowest for lynx (52%). The proportion of habitats avoided or useless due to anthropogenic barriers was 34% for lynx, 25% for wisents, and 19% for brown bears.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43157003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-05DOI: 10.35513/21658005.2020.1.10
Nassima Saadi, J. Trilles, R. Amara, Z. Ramdane
A total of 1229 specimens representing 11 commercial fish species caught off the coast of Algeria were examined for parasitic nematodes (larvae) from November 2015 to April 2017. Four nematode species belonging to Anisakis (1 species) and Hysterothylacium (3 species) genera were identified. The presence of A. simplex parasitism in Trachurus trachurus was significantly related to the length (p < 0.05) of the fish and the season of its capture (p < 0.05), but not to its sex (p = 0.61%). Large benthic species and some pelagic species show high rates of infection with parasitic nematodes and therefore pose considerable health risk (anisakiasis) thereby compromising food safety. An up-to-date reference checklist of nematode species collected from the North African fish species was compiled with specific relationships between parasitic nematodes and their hosts and/or their collecting location indicated.
{"title":"Parasitic nematodes infecting commercial fishes off the coast of Algeria","authors":"Nassima Saadi, J. Trilles, R. Amara, Z. Ramdane","doi":"10.35513/21658005.2020.1.10","DOIUrl":"https://doi.org/10.35513/21658005.2020.1.10","url":null,"abstract":"A total of 1229 specimens representing 11 commercial fish species caught off the coast of Algeria were examined for parasitic nematodes (larvae) from November 2015 to April 2017. Four nematode species belonging to Anisakis (1 species) and Hysterothylacium (3 species) genera were identified. The presence of A. simplex parasitism in Trachurus trachurus was significantly related to the length (p < 0.05) of the fish and the season of its capture (p < 0.05), but not to its sex (p = 0.61%). Large benthic species and some pelagic species show high rates of infection with parasitic nematodes and therefore pose considerable health risk (anisakiasis) thereby compromising food safety. An up-to-date reference checklist of nematode species collected from the North African fish species was compiled with specific relationships between parasitic nematodes and their hosts and/or their collecting location indicated.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45157107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper reports a pioneer study dealing with the impact of dam construction on Odonata communities, because no similar study has been undertaken in Algeria and the consequences of this artificialization on the Odonata assemblages have rarely been studied elsewhere. The main purpose of this study was to determine if the Tichi Haf dam is really having a negative effect on the Odonata communities living on the Boussellam watercourse, as there has hitherto been a lack of knowledge about its odonatofauna and aquatic microinvertebrates. This study showed that changes due to the construction of this dam, involving riparian vegetation, bank aspect and water parameters, affected the Odonata assemblages inhabiting both sides of the dam wall. The richness and abundance of dragonflies and damselflies found upstream from the dam is quite different from those found downstream from the dam. The survey also identified four new species for the Bejaia region. Among these, we report on the rediscovery of the critically endangered (EN) Calopteryx exul in Algeria, recorded in the nineteenth century and deemed to have been extinct after an absence of more than a century. The presence of an extant population C. exul in this location does not correspond to any historical locality reported for this species.
{"title":"Does the Tichi Haf dam construction affect dragonfly and damselfly (Odonata : Insecta) assemblages of the Boussellam watercourse (central north Algeria)? A preliminary study","authors":"Abdelmadjid Chelli, Riadh Moulai, Abdelhadi Djemai","doi":"10.35513/21658005.2020.1.5","DOIUrl":"https://doi.org/10.35513/21658005.2020.1.5","url":null,"abstract":"This paper reports a pioneer study dealing with the impact of dam construction on Odonata communities, because no similar study has been undertaken in Algeria and the consequences of this artificialization on the Odonata assemblages have rarely been studied elsewhere. The main purpose of this study was to determine if the Tichi Haf dam is really having a negative effect on the Odonata communities living on the Boussellam watercourse, as there has hitherto been a lack of knowledge about its odonatofauna and aquatic microinvertebrates. This study showed that changes due to the construction of this dam, involving riparian vegetation, bank aspect and water parameters, affected the Odonata assemblages inhabiting both sides of the dam wall. The richness and abundance of dragonflies and damselflies found upstream from the dam is quite different from those found downstream from the dam. The survey also identified four new species for the Bejaia region. Among these, we report on the rediscovery of the critically endangered (EN) Calopteryx exul in Algeria, recorded in the nineteenth century and deemed to have been extinct after an absence of more than a century. The presence of an extant population C. exul in this location does not correspond to any historical locality reported for this species.","PeriodicalId":38366,"journal":{"name":"Zoology and Ecology","volume":"30 1","pages":"37-47"},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44297381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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