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Papers by Boudjéma Samraoui

Research paper thumbnail of Resource partitioning in two coexisting cladocerans,Daphnia magnaandScapheloberis kingi(Anomopoda: Daphniidae), in north-eastern Algeria

African Journal of Aquatic Science, Dec 7, 2015

Life-history traits of two coexisting cladocerans, Daphnia magna Straus and Scapheloberis kingi S... more Life-history traits of two coexisting cladocerans, Daphnia magna Straus and Scapheloberis kingi Sars, inhabiting a temporary pond in north-eastern Algeria were monitored in 2013 under laboratory conditions. Their life histories were compared for differences in traits such as age and size at first reproduction, size of neonates, brood size, number of broods per female, total life span and intrinsic rate of increase (rm). Data were recorded during their entire life cycle. Daphnia magna, the larger species, could possibly be more successful in colonising temporary habitats than S. kingi because it allocates more energy to reproduction. Scapheloberis kingi, the smaller species, starts reproduction early, resulting in a smaller brood size and a shorter life span with fewer broods. Consequently, S. kingi produces a smaller number of neonates during its lifetime and has a lower rm. In contrast, D. magna delays reproduction but produces a larger brood size and, because it is longer-lived, produces more broods and so produces a greater number of neonates and has a higher rm over its lifetime.

Research paper thumbnail of Effect of forest fires on a Mediterranean Odonata assemblage

International Journal of Odonatology, Mar 23, 2023

Research paper thumbnail of Diurnal time budget of wintering Teal Anas crecca at Lac des Oiseaux, northeast Algeria

Research paper thumbnail of Two new species of Centroptilum Eaton, 1869 from North Africa (Ephemeroptera, Baetidae)

Research paper thumbnail of Lindenia tetraphylla new to Libya (Odonata: Gomphidae)

Research paper thumbnail of A survey of the distribution of the water rail Rallus aquaticus in Algeria and its first recorded breeding in the Algerian Sahara

African Journal of Ecology

Research paper thumbnail of First successful nesting of the Little Egret Egretta garzetta in Ghardaïa (Algerian Sahara)

Zoology and Ecology

We report on the first successful breeding of the Little Egret, Egretta garzetta, in the Sahara, ... more We report on the first successful breeding of the Little Egret, Egretta garzetta, in the Sahara, Algeria. We conducted a study on the nesting of this species at Kef Doukhane, an artificial wetland in Northern Sahara that has become an increasingly important nesting site for waterbirds. The number of individuals was monitored between April and October 2021 and the greatest abundance with 470 individuals was recorded in October. However, during breeding, the colony decreased to about 50 birds that built seven nests. Egg-laying started at the beginning of July and at least 34 eggs were laid. Clutches varied between 5 and 6 eggs, and 28 nestlings fledged, yielding a breeding success of 82.4%.

Research paper thumbnail of Biodiversite et Ecologie Des Mares Temporaires De La Numidie Orientale « Nord-Est Algerien » Cas Du Complex Des « Mares Gauthier »

AGROBIOLOGIA, Jun 30, 2021

Research paper thumbnail of Effects of food limitation on the life history of Simocephalus expinosus Koch (Cladocera: Daphniidae)

Egyptian Academic Journal of Biological Sciences, B. Zoology, 2013

Research paper thumbnail of The life history of the Ibero-Maghrebian endemic Oligoneuriopsis skhounate Dakki and Guidicelli (Ephemeroptera: Oligoneuriidae)

Limnologica, 2020

Abstract As an essential component of lotic habitats, aquatic insects have commonly been used as ... more Abstract As an essential component of lotic habitats, aquatic insects have commonly been used as bio-indicators of the ecological integrity of lotic habitats. However, recent large-scale declines have given rise to concerns about freshwater ecosystems functioning correctly. During three consecutive years, we surveyed Wadi Cherf, Upper Seybouse, Algeria, and employed the size-frequency distribution of head capsule width to sketch the life history of Oligoneuriopsis skhounate, an Ibero-Maghrebian endemic mayfly, whose distribution and ecology are not so well-known known. O. skhounate exhibited a seasonal univoltine summer cycle with growth and development taking place during the warmest period of the year (late spring to early autumn). The absence of nymphs during winter and the presence of last instar nymphs from July to November suggested a lengthy egg diapause, following the aestivo-autumnal emergence and reproduction. The study also raises the issue of freshwater biodiversity conservation in North Africa by highlighting the case of O. skhounate, acting as an indicator species of important but vulnerable aquatic ecosystems.

Research paper thumbnail of A literature review of Algerian salt lakes: values, threats and implications

Environmental Earth Sciences, 2017

Research paper thumbnail of Status and seasonal patterns of adult Rhopalocera (Lepidoptera) in north-eastern Algeria

Research paper thumbnail of Brown et al 1988

Research paper thumbnail of El estado de conservación y la distribución de las libélulas de la cuenca del Mediterráneo

Research paper thumbnail of Diurnal behaviour of wintering Wigeon Anas penelope at Lac des Oiseaux, northeast Algeria

Research paper thumbnail of Long-distance Dispersal of the Afro-Eurasian Glossy Ibis From Ring Recoveries

HAL (Le Centre pour la Communication Scientifique Directe), Nov 27, 2019

Research paper thumbnail of Statut de Conservation et Répartition Géographique des Libellules du Bassin Méditerranéen

... Samraoui Laboratoire de Recherche et de Conservation des Zones Humides, Département de biolog... more ... Samraoui Laboratoire de Recherche et de Conservation des Zones Humides, Département de biologie, Université de Guelma, Guelfa (Algérie) ... Nous tenons en particulier à exprimer notre reconnaissance envers Sandra Simoes et Nieves Garcia pour le soutien qu'elles ont ...

Research paper thumbnail of Impact of eastern mosquitofish,Gambusia holbrooki,on temporary ponds: insights on how predation may structure zooplankton communities

Zoology and Ecology, 2017

Research paper thumbnail of Variation spatio-temporelle du zooplancton dans le barrage de la réserve de chasse de Zéralda (Algérie)

Revue d'Écologie (La Terre et La Vie)

Le zooplancton forme une composante essentielle dans la chaîne trophique des lacs peu profonds à ... more Le zooplancton forme une composante essentielle dans la chaîne trophique des lacs peu profonds à caractère eutrophe tels que le barrage de la réserve de chasse de Zéralda. Ce barrage est formé de deux bassins qui communiquent entre eux. Lors d’une étude du zooplancton et des paramètres physico-chimiques des eaux de ce barrage, nous avons effectué sur une durée de 24 mois (entre mars 2006 et février 2008) un prélèvement mensuel, en surface et en profondeur, dans dix stations d’étude. Le peuplement zooplanctonique récolté se composait de 15 espèces : 7 Cladocères, 6 Rotifères, et 2 Copépodes. Au cours de cette étude, ce barrage a connu deux phases de prolifération de cyanobactéries, déclenchées par une concentration très élevée en orthophosphates. La première prolifération a conduit à une mortalité massive des poissons. De même, nous avons assisté à une modification progressive des espèces de phytoplancton dont se nourrit le zooplancton. En parallèle, le zooplancton a connu une instab...

Research paper thumbnail of Odonata of the Mazafran hydrosystem : distribution and community structure

Revue d'Écologie (La Terre et La Vie)

Les Odonates de l’hydrosystème du Mazafran : distribution et structure de communauté. L’un des ob... more Les Odonates de l’hydrosystème du Mazafran : distribution et structure de communauté. L’un des objectifs de notre étude est d’acquérir une meilleure connaissance sur les Odonates du réseau hydrographique du Mazafran, situé au centre-nord de l’Algérie. Cette région, jusqu’à présent inexplorée du point de vue odonatologique, se caractérise par un climat méditerranéen subhumide avec une période sèche qui s’étale sur six mois environ, de mai à la fin d’octobre. La prospection de 19 stations réparties dans le réseau hydrographique du Mazafran, sur une durée de 24 mois consécutifs (d’avril 2013 à mars 2015) nous a permis de recenser 948 Odonates adultes appartenant à 15 espèces. Calopteryx haemorrhoidalis (33,1 %) et Platycnemis subdilatata (20,5 %) sont les plus abondantes et les plus fréquentes d’entre elles. Les résultats révèlent la présence d’Ischnura pumilio, qui, actuellement, n’est plus connu en Algérie que de la Numidie (nord-est du pays) et est rare au Maghreb. Les caractéristiq...

Research paper thumbnail of Resource partitioning in two coexisting cladocerans,Daphnia magnaandScapheloberis kingi(Anomopoda: Daphniidae), in north-eastern Algeria

African Journal of Aquatic Science, Dec 7, 2015

Life-history traits of two coexisting cladocerans, Daphnia magna Straus and Scapheloberis kingi S... more Life-history traits of two coexisting cladocerans, Daphnia magna Straus and Scapheloberis kingi Sars, inhabiting a temporary pond in north-eastern Algeria were monitored in 2013 under laboratory conditions. Their life histories were compared for differences in traits such as age and size at first reproduction, size of neonates, brood size, number of broods per female, total life span and intrinsic rate of increase (rm). Data were recorded during their entire life cycle. Daphnia magna, the larger species, could possibly be more successful in colonising temporary habitats than S. kingi because it allocates more energy to reproduction. Scapheloberis kingi, the smaller species, starts reproduction early, resulting in a smaller brood size and a shorter life span with fewer broods. Consequently, S. kingi produces a smaller number of neonates during its lifetime and has a lower rm. In contrast, D. magna delays reproduction but produces a larger brood size and, because it is longer-lived, produces more broods and so produces a greater number of neonates and has a higher rm over its lifetime.

Research paper thumbnail of Effect of forest fires on a Mediterranean Odonata assemblage

International Journal of Odonatology, Mar 23, 2023

Research paper thumbnail of Diurnal time budget of wintering Teal Anas crecca at Lac des Oiseaux, northeast Algeria

Research paper thumbnail of Two new species of Centroptilum Eaton, 1869 from North Africa (Ephemeroptera, Baetidae)

Research paper thumbnail of Lindenia tetraphylla new to Libya (Odonata: Gomphidae)

Research paper thumbnail of A survey of the distribution of the water rail Rallus aquaticus in Algeria and its first recorded breeding in the Algerian Sahara

African Journal of Ecology

Research paper thumbnail of First successful nesting of the Little Egret Egretta garzetta in Ghardaïa (Algerian Sahara)

Zoology and Ecology

We report on the first successful breeding of the Little Egret, Egretta garzetta, in the Sahara, ... more We report on the first successful breeding of the Little Egret, Egretta garzetta, in the Sahara, Algeria. We conducted a study on the nesting of this species at Kef Doukhane, an artificial wetland in Northern Sahara that has become an increasingly important nesting site for waterbirds. The number of individuals was monitored between April and October 2021 and the greatest abundance with 470 individuals was recorded in October. However, during breeding, the colony decreased to about 50 birds that built seven nests. Egg-laying started at the beginning of July and at least 34 eggs were laid. Clutches varied between 5 and 6 eggs, and 28 nestlings fledged, yielding a breeding success of 82.4%.

Research paper thumbnail of Biodiversite et Ecologie Des Mares Temporaires De La Numidie Orientale « Nord-Est Algerien » Cas Du Complex Des « Mares Gauthier »

AGROBIOLOGIA, Jun 30, 2021

Research paper thumbnail of Effects of food limitation on the life history of Simocephalus expinosus Koch (Cladocera: Daphniidae)

Egyptian Academic Journal of Biological Sciences, B. Zoology, 2013

Research paper thumbnail of The life history of the Ibero-Maghrebian endemic Oligoneuriopsis skhounate Dakki and Guidicelli (Ephemeroptera: Oligoneuriidae)

Limnologica, 2020

Abstract As an essential component of lotic habitats, aquatic insects have commonly been used as ... more Abstract As an essential component of lotic habitats, aquatic insects have commonly been used as bio-indicators of the ecological integrity of lotic habitats. However, recent large-scale declines have given rise to concerns about freshwater ecosystems functioning correctly. During three consecutive years, we surveyed Wadi Cherf, Upper Seybouse, Algeria, and employed the size-frequency distribution of head capsule width to sketch the life history of Oligoneuriopsis skhounate, an Ibero-Maghrebian endemic mayfly, whose distribution and ecology are not so well-known known. O. skhounate exhibited a seasonal univoltine summer cycle with growth and development taking place during the warmest period of the year (late spring to early autumn). The absence of nymphs during winter and the presence of last instar nymphs from July to November suggested a lengthy egg diapause, following the aestivo-autumnal emergence and reproduction. The study also raises the issue of freshwater biodiversity conservation in North Africa by highlighting the case of O. skhounate, acting as an indicator species of important but vulnerable aquatic ecosystems.

Research paper thumbnail of A literature review of Algerian salt lakes: values, threats and implications

Environmental Earth Sciences, 2017

Research paper thumbnail of Status and seasonal patterns of adult Rhopalocera (Lepidoptera) in north-eastern Algeria

Research paper thumbnail of Brown et al 1988

Research paper thumbnail of El estado de conservación y la distribución de las libélulas de la cuenca del Mediterráneo

Research paper thumbnail of Diurnal behaviour of wintering Wigeon Anas penelope at Lac des Oiseaux, northeast Algeria

Research paper thumbnail of Long-distance Dispersal of the Afro-Eurasian Glossy Ibis From Ring Recoveries

HAL (Le Centre pour la Communication Scientifique Directe), Nov 27, 2019

Research paper thumbnail of Statut de Conservation et Répartition Géographique des Libellules du Bassin Méditerranéen

... Samraoui Laboratoire de Recherche et de Conservation des Zones Humides, Département de biolog... more ... Samraoui Laboratoire de Recherche et de Conservation des Zones Humides, Département de biologie, Université de Guelma, Guelfa (Algérie) ... Nous tenons en particulier à exprimer notre reconnaissance envers Sandra Simoes et Nieves Garcia pour le soutien qu'elles ont ...

Research paper thumbnail of Impact of eastern mosquitofish,Gambusia holbrooki,on temporary ponds: insights on how predation may structure zooplankton communities

Zoology and Ecology, 2017

Research paper thumbnail of Variation spatio-temporelle du zooplancton dans le barrage de la réserve de chasse de Zéralda (Algérie)

Revue d'Écologie (La Terre et La Vie)

Le zooplancton forme une composante essentielle dans la chaîne trophique des lacs peu profonds à ... more Le zooplancton forme une composante essentielle dans la chaîne trophique des lacs peu profonds à caractère eutrophe tels que le barrage de la réserve de chasse de Zéralda. Ce barrage est formé de deux bassins qui communiquent entre eux. Lors d’une étude du zooplancton et des paramètres physico-chimiques des eaux de ce barrage, nous avons effectué sur une durée de 24 mois (entre mars 2006 et février 2008) un prélèvement mensuel, en surface et en profondeur, dans dix stations d’étude. Le peuplement zooplanctonique récolté se composait de 15 espèces : 7 Cladocères, 6 Rotifères, et 2 Copépodes. Au cours de cette étude, ce barrage a connu deux phases de prolifération de cyanobactéries, déclenchées par une concentration très élevée en orthophosphates. La première prolifération a conduit à une mortalité massive des poissons. De même, nous avons assisté à une modification progressive des espèces de phytoplancton dont se nourrit le zooplancton. En parallèle, le zooplancton a connu une instab...

Research paper thumbnail of Odonata of the Mazafran hydrosystem : distribution and community structure

Revue d'Écologie (La Terre et La Vie)

Les Odonates de l’hydrosystème du Mazafran : distribution et structure de communauté. L’un des ob... more Les Odonates de l’hydrosystème du Mazafran : distribution et structure de communauté. L’un des objectifs de notre étude est d’acquérir une meilleure connaissance sur les Odonates du réseau hydrographique du Mazafran, situé au centre-nord de l’Algérie. Cette région, jusqu’à présent inexplorée du point de vue odonatologique, se caractérise par un climat méditerranéen subhumide avec une période sèche qui s’étale sur six mois environ, de mai à la fin d’octobre. La prospection de 19 stations réparties dans le réseau hydrographique du Mazafran, sur une durée de 24 mois consécutifs (d’avril 2013 à mars 2015) nous a permis de recenser 948 Odonates adultes appartenant à 15 espèces. Calopteryx haemorrhoidalis (33,1 %) et Platycnemis subdilatata (20,5 %) sont les plus abondantes et les plus fréquentes d’entre elles. Les résultats révèlent la présence d’Ischnura pumilio, qui, actuellement, n’est plus connu en Algérie que de la Numidie (nord-est du pays) et est rare au Maghreb. Les caractéristiq...