16 documents found, page 1 of 2
Forecasts of butterfly future richness change in the southwest Mediterranean. T...
García-Barros, Enrique; Cancela, JP; Lobo, Jorge M.; Munguira, Miguel L.; Romo, HelenaWe estimated the potential impact of Global Warming on the species richness of Iberian butterflies. First, we determined the grid size that maximized the balance between geographic resolution, area coverage and environmental representativeness. Contemporary richness was modelled in several alternative ways that differed in how sampling effort was controlled for, and in whether the non-climatic variables (physio...
Functional traits of indigenous and exotic ground-dwelling arthropods show cont...
Rigal, François; Cardoso, Pedro; Lobo, Jorge M.; Triantis, Kostas A.; Whittaker, Robert J.; Amorim, Isabel R.; Borges, Paulo A. V.AIM: Land-use change typically goes hand in hand with the introduction of exotic species, which mingle with indigenous species to form novel assemblages. Here, we compare the functional structure of indigenous and exotic elements of ground-dwelling arthropod assemblages across four land-uses of varying management intensity. LOCATION: Terceira Island (Azores, North Atlantic). METHODS: We used pitfall traps to sa...
The role of plant fidelity and land-use changes on island exotic and indigenous...
Florencio, Margarita; Rigal, François; Borges, Paulo A. V.; Cardoso, Pedro; Santos, Ana C.; Lobo, Jorge M.Understanding the processes that lead to successful invasions is essential for the management of exotic species. We aimed to assess the comparative relevance of habitat (both at local and at regional scale) and plant features on the species richness of local canopy spiders of both indigenous and exotic species. In an oceanic island, Azores archipelago, we collected spiders in 97 transects belonging to four habi...
The iterative process of plant species inventorying for obtaining reliable biod...
Aranda, Silvia C.; Hespanhol, Helena; Homem, Nídia; Borges, Paulo A. V.; Lobo, Jorge M.; Gabriel, RosalinaWe require representative data of species occurrence to explain plant diversity patterns, but most of the available information is incomplete and biased. To improve our knowledge, we suggest that species inventorying should be an iterative process encompassing the following: (1) the detection of taxonomic and geographical gaps; (2) the planning of a survey design to reduce such gaps; and (3) the evaluation of f...
The colonisation of exotic species does not have to trigger faunal homogenisati...
Florencio, Margarita; Lobo, Jorge M.; Cardoso, Pedro; Almeida-Neto, Mário; Borges, Paulo A. V.Human-caused disturbances can lead to the extinction of indigenous (endemic and native) species, while facilitating and increasing the colonisation of exotic species; this increase can, in turn, promote the similarity of species compositions between sites if human-disturbed sites are consistently invaded by a regionally species-poor pool of exotic species. In this study, we analysed the extent to which epigean ...
Geographical, temporal and environmental determinants of bryophyte species rich...
Aranda, Silvia C.; Gabriel, Rosalina; Borges, Paulo A. V.; Santos, Ana M. C.; Azevedo, Eduardo B.; Patiño, Jairo; Hortal, Joaquín; Lobo, Jorge M.Species richness on oceanic islands has been related to a series of ecological factors including island size and isolation (i.e. the Equilibrium Model of Island Biogeography, EMIB), habitat diversity, climate (i.e., temperature and precipitation) and more recently island ontogeny (i.e. the General Dynamic Model of oceanic island biogeography, GDM). Here we evaluate the relationship of these factors with the div...
Arthropod assemblage homogenization in oceanic islands: The role of indigenous ...
Florencio, Margarita; Cardoso, Pedro; Lobo, Jorge M.; Azevedo, Eduardo B.; Borges, Paulo A. V.Human landscape disturbance can drive the degradation of natural environments, thereby contributing to indigenous (endemic and native nonendemic) species extinctions, facilitating the establishment of exotic species and ultimately resulting in more similar species compositions over time and space. We assessed whether similarities in epigean arthropod assemblages differ between indigenous and exotic species in a...
How do different dispersal modes shape the species-area relationship? Evidence ...
Aranda, Silvia C.; Gabriel, Rosalina; Borges, Paulo A. V.; Santos, Ana M. C.; Hortal, Joaquín; Baselga, Andrés; Lobo, Jorge M.AIM: We explore the island species–area relationships (ISARs) of several plant groups differing in dispersal ability. We examine whether: (i) the ISAR slope is higher for less dispersive groups (diminishing from not-wind-dispersed seed plants to wind-dispersed seed plants, pteridophytes and bryophytes); and (ii) the regional richness is higher than that predicted by the ISAR of its constituent islands for group...
Designing a survey protocol to overcome the Wallacean shortfall: a working guid...
Aranda, Silvia C.; Gabriel, Rosalina; Borges, Paulo A. V.; Azevedo, Eduardo B.; Lobo, Jorge M.The increasing availability of open access data on species occurrences is leading researchers to generate more hypotheses about patterns of species distributions. However, when all of this information is mapped onto a particular geographical scale, gaps usually appear due to lack of knowledge and sampling spatial bias (the so-called Wallacean shortfall). To overcome these problems as efficiently as possible, fi...
The provisional status of arthropod inventories in the Macaronesian islands
Lobo, Jorge M.; Borges, Paulo A. V."[...]. We examined the available data on the most hyper-diverse group of terrestrial animals (the arthropods) with the aim to assess the general reliability of these Macaronesian inventories. First, we describe the main differences between archipelagos in the year of species description. These calculations allow us to compare the temporal pattern of the taxonomic process in the four archipelagos depending on t...