As an Indigenous community of Algeria and the broader Sahel, the Tuareg hold unique ecological knowledge, which might contribute to broader models of place‐based climate change impacts. Between January and April 2019, we carried out semi‐structured interviews ( N = 23) and focus group discussions ( N = 3) in five villages of the province of Illizi, Algeria, to document the local Tuareg community's timeline and ecological calendar, both of which are instruments used to understand place‐based reports of climate change impacts. The livelihoods of the Tuareg of Illizi are finely tuned to climate variability as reflected in changes reported in the cadence of events in their ecological calendar (marked by cyclical climatic and religious events). Participants reported rain and temperature irregularities and severe drought events, which have impacted their pastoral and semi‐pastoral livelihoods. These reports are aligned with scientifically measured climate observations and predictions. Paradoxically, although participants recall with detail the climatic disasters that happened in the region over the last century, the Tuareg do not explicitly report decadal trends in the frequency of extreme events. The differential perception of climate change impacts across scales can have important implications for undertaking climate change adaptation measures.

This study is a phytoecological approach aimed to improve the knowledge on diatoms and their ecology in the wetland of ChottChergui in the northwesternregionof Algeria.For this work, 60 samples of solid substrates containing the epilithic diatom flora were collected in the field using a subjective method. The identification of diatom taxa was carried out according to a standard protocol while using pertinentliteraturethat specialized guides. At the level of the 5 sampling sites, water physicochemical parameters that could influence the distribution of diatoms were measured. The results obtained made it possible to recognize 36 diatom taxa belonging to 12 families, of which, the most dominant were Naviculaceae, Surirellaceae and Bacillariaceae. The calculated biodiversity indices (Shannon’s H and equitability revealed a low taxonomic richness which will probably be explained by the dominance of the typical brackish water taxa such as Mastogloiabraunii, Campylodiscusclypeus ,and Navicymbulapusilla. We were also able to characterize the distribution of identified taxa according to the physicochemical parameters of each site. Furthermore, the attraction of the diatomic communities to saprobia shows the predominance of the two classes: α-mesosaprobic and β-mesosaprobe during the two seasons of fall and spring. Canonical correspondence analysis revealed that the distribution of diatom communities is positively correlated with conductivity and temperature. Some species like Navicymbulapusilla, show a significant resistance to anthropogenic eutrophication.

This is the first regional study aimed at understanding the diversity of the fauna nesting in the populations of Atlas Pistachio in Algeria. Fieldwork which lasted 6 years, consisted of mixed sampling (stratified then subjective) accompanied by surveys of the surrounding population in order to find the vertebrate species sought. A total of 160 species have been identified in all the study area (Tiaret region). There are 160 species of birds (46 migratory species and 66 sedentary species); 21 species of mammals; 5 species of freshwater fish; 17 species of reptiles and 5 species of amphibians. The present study revealed to us the existence of an exceptional fauna diversity in this area with some new data on the distribution of some species, especially birds and mammals. For the forest of Atlas Pistachio, there are less than all the study area, because of the location of the 4th forests, with two of them in the north of Tiaret region (mountains of Tagdemt and Guertoufa) and the the others forests in the south, in the steppe ecosystem (Rechaiga and Rosfa). Our study reveals that the most species and the diversity of fauna are located in the north (Tagdempt and Rosfa) with 47 species of birds of an total of 57 species that we mentioned in all the 4th forests of the Atlas Pistachio, 8 of the total of 12 species of mammals, 9 of the total of 13 reptiles and only one species of amphibians with is Sclerophrys mauritanica. We can say also that only two species have a direct relation with this tree, we talk about Sturnus vulgaris and Mus musculus, wich prefer the fruits and seeds of this tree; that Sturnus vulgaris with is a wintering migrant birds, and his migration come over the period of fruting of this endemic and important tree. For the mouse (Mus musculus), as all the rodentodia species, they prefer the seeds, that they collect into their hole. We can say at last, that the Tiaret region is very important biotope, for all the vertebrate species, for his heterogeneity ecosystems, and their location with consist of an migratory halt for many birds, also the nesting birds wicth come every year for the reproduction.