FLORISTIC COMPOSITION AND BIOLOGICAL SPECTRUM OF BARA GALI, ABBOTTABAD

Floristic composition and Phytosociological studies on the flora of Bara Gali District Abbottabad, Pakistan was conducted. The altitudinal range of the Bara Gali is from 2100-2370 meter. From the study area 50 species belong to 33 families were recorded. Herbaceous flora was dominant with 35 species, shrubs with 10 species and tree with 5 species. Asteraceae was dominant having 6 species. Microphyll dominant leaf size spectra and hemicryptophytes were dominant life form in the study area. This study provide information about the floristic composition of Bara Gali.

Rapoport’s Rule and the effect of the last glaciation upon elevational range size: An analysis using a dung beetle model (Coleoptera: Scarabaeidae: Onthophagus) in Mexican tropical mountains

Several studies have tested the Elevational Rapoport Rule (ERR) in arthropods, especially in the Neotropical mountains. Nonetheless, different approaches should be used for a more nuanced comprehension of ERR patterns and assemblage altitudinal distribution patterns, such as the biogeographical, ecological, and evolutionary contexts. This study aims to test the ERR for elevational gradients in Mexican mountains. For this study, dung beetle assemblages of the genus Onthophagus were used as a model organism, and their distribution was studied in several different mountain ranges of the Mexican tropics. Altitudinal distribution of Onthophagus species was analyzed, including ecological traits and biogeographical/phylogenetical contexts as covariables. The increase of altitude was positively correlated to the assemblage altitudinal range. Furthermore, altitudinal range, relative abundance, body size, and mountain’s topographic prominence were positively correlated to the mean altitudinal range of Onthophagus species. Nonetheless, different altitudinal relationships were observed, depending on the mountain. The results support the idea that species that inhabit higher altitudes appear to be more environmentally plastic and occur in wider altitudinal ranges than species from lower altitudes, thus supporting the ERR. The present findings stress that biogeographical, ecological, phylogenetical, and historical aspects, besides body size, are essential drivers of the altitudinal distribution of Onthophagus dung beetles.

Bats can reach 3626 m a.s.l. in Papua New Guinea: altitudinal range extensions for six rainforest bat species

Bats represent an important, but poorly known component of mammal diversity in Papua New Guinea (PNG). Our surveys in two altitudinal rainforest gradients recorded 43 bat species of which six (Dobsonia minor, D. praedatrix, Hipposideros calcaratus, H. maggietaylorae, Miniopterus australis, Miniopterus sp.) fell outside of their known altitudinal ranges. This enlargement could reflect the lack of past sampling, or a genuine range extension, potentially in response to climate change. Our study highlights the importance of baseline data on the altitudinal distribution of vertebrates, including bats, in PNG for the monitoring of their response to climate change and anthropogenic disturbance.

A new occurrence record for the Vulnerable Rhinella rumbolli (Carrizo, 1992) (Anura, Bufonidae) in Tarija, Bolivia

We present a new altitudinal record for Salta Toad, Rhinella rumbolli (Carrizo, 1992). This species is recorded in northern Argentina and southern Bolivia from 700 to 1800 m a.s.l. Our new record comes from San Lorencito, Méndez Province, Tarija Department, Bolivia, and extends the altitudinal range by 569 m a.s.l.

Short-Lived Species Move Uphill Faster Under Climate Change

Climate change is pushing species ranges towards poles and mountain tops. Although many studies have documented local altitudinal shifts, knowledge of general patterns at a large spatial scale, such as a whole mountain range, is very limited. From a conservation perspective, studying altitudinal shifts is particularly important as mountain regions often represent biodiversity hotspots and are among the most vulnerable ecosystems. Here, we examine whether altitudinal shifts have occurred among birds in the Scandinavian mountains over 13 years and assess whether such shifts are related to species’ traits. Using abundance data, we show a clear pattern of uphill shifts in the mean altitudes of the bird species’ abundances across the Scandinavian mountains, with an average speed of 0.9 m per year. Out of 77 species, 54 shifted their ranges uphill. In general, the range shift was faster when the altitudinal range within the area was wider. Importantly, the altitudinal shift was strongly related to species’ longevity: short-lived species showed more pronounced altitudinal uphill shifts than long-lived species. Our results show that the altitudinal range shifts are not only driven by a small number of individuals at the range boundaries, but the overall bird abundances are on the move. This highlights the wide-ranging impact of climate change and the potential vulnerability of species with slow life-histories, as they appear unable to timely respond to rapidly changing climatic conditions.

Climate change and anthropogenic food manipulation interact in shifting the distribution of a large herbivore at its altitudinal range limit

Ungulates in alpine ecosystems are constrained by winter harshness through resource limitation and direct mortality from weather extremes. However, little empirical evidence has definitively established how current climate change and other anthropogenic modifications of resource availability affect ungulate winter distribution, especially at their range limits. Here, we used a combination of historical (1997–2002) and contemporary (2012–2015) Eurasian roe deer (Capreolus capreolus) relocation datasets that span changes in snowpack characteristics and two levels of supplemental feeding to compare and forecast probability of space use at the species’ altitudinal range limit. Scarcer snow cover in the contemporary period interacted with the augmented feeding site distribution to increase the elevation of winter range limits, and we predict this trend will continue under climate change. Moreover, roe deer have shifted from historically using feeding sites primarily under deep snow conditions to contemporarily using them under a wider range of snow conditions as their availability has increased. Combined with scarcer snow cover during December, January, and April, this trend has reduced inter-annual variability in space use patterns in these months. These spatial responses to climate- and artificial resource-provisioning shifts evidence the importance of these changing factors in shaping large herbivore spatial distribution and, consequently, ecosystem dynamics.