Browsing by UP Author "Le Roux, Peter Christiaan"

Browsing by UP Author "Le Roux, Peter Christiaan"

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  • Alien plant species that invade high elevations are generalists : support for the directional ecological filtering hypothesis 
    Steyn, Christien; Greve, Michelle; Robertson, Mark P.; Kalwij, Jesse M.; Le Roux, Peter Christiaan (Wiley, 2017-03)
    QUESTIONS : The richness of invasive alien plant species tends to decrease with increasing elevation. This pattern may be due to alien plant species requiring traits allowing survival at high elevations (the Abiotic ...
  • Arctic-alpine vegetation biomass is driven by fine-scale abiotic heterogeneity 
    Suvanto, Susanne; Le Roux, Peter Christiaan; Luoto, Miska (Wiley, 2014-04)
    During recent decades large changes in vegetation biomass have been observed in arctic and alpine areas. While these temporal trends have been clearly linked to changing climatic conditions, the drivers of local spatial ...
  • Beyond the tree-line : the C3-C4 “grass-line” can track global change in the world’s grassy mountain systems 
    De Deus Vidal Jr., Joao; Le Roux, Peter Christiaan; Johnson, Steven D.; Te Beest, Mariska; Clark, Vincent Ralph (Frontiers Media, 2021-12-07)
    Von Humboldt’s tree-line concept has dominated mountain ecology for almost two hundred years, and is considered a key indicator for monitoring change in biome boundaries and biodiversity shifts under climate change. Even ...
  • Biotic interactions boost spatial models of species richness 
    Mod, Heidi K.; Le Roux, Peter Christiaan; Guisan, Antoine; Luoto, Miska (Wiley, 2015-09)
    Biotic interactions are known to aff ect the composition of species assemblages via several mechanisms, such as competition and facilitation. However, most spatial models of species richness do not explicitly consider ...
  • Contrasting effects of biotic interactions on richness and distribution of vascular plants, bryophytes and lichens in an arctic–alpine landscape 
    Mod, Heidi K.; Heikkinen, Risto K.; Le Roux, Peter Christiaan; Väre, Henry; Luoto, Miska (Springer, 2016-04)
    Biotic interactions may strongly affect the distribution of individual species and the resulting patterns of species richness. However, the impacts can vary depending on the species or taxa examined, suggesting that the ...
  • Distance decay 2.0 – a global synthesis of taxonomic and functional turnover in ecological communities 
    Graco-Roza, Caio; Aarnio, Sonja; Abrego, Nerea; Acosta, Alicia T.R.; Alahuhta, Janne; Altman, Jan; Angiolini, Claudia; Aroviita, Jukka; Attorre, Fabio; Baastrup-Spohr, Lars; Barrera-Alba, Jose J.; Belmaker, Jonathan; Biurrun, Idoia; Bonari, Gianmaria; Bruelheide, Helge; Burrascano, Sabina; Carboni, Marta; Cardoso, Pedro; Carvalho, Jose C.; Castaldelli, Giuseppe; Correa, Gilsineia; Dembicz, Iwona; Dengler, Jurgen; Dolezal, Jiri; Domingos, Patricia; Eros, Tibor; Ferreira, Carlos E.L.; Filibeck, Goffredo; Floeter, Sergio R.; Friedlander, Alan M.; Gammal, Johanna; Gavioli, Anna; Gossner, Martin M.; Granot, Itai; Guarino, Riccardo; Gustafsson, Camilla; Hayden, Brian; He, Siwen; Heilmann-Clausen, Jacob; Heino, Jani; Hunter, John T.; Huszar, Vera L. M.; Janisova, Monika; Jyrkankallio-Mikkola, Jenny; Kahilainen, Kimmo K.; Kemppinen, Julia; Kozub, Lukasz; Kulbiki, Michel; Kuzemko, Anna; Le Roux, Peter Christiaan; Lehikoinen, Aleksi; De Lima, Domenica Teixeira; Lopez-Urrutia, Angel; Lukacs, Balazs A.; Luoto, Miska; Mammola, Stefano; Marinho, Marcelo M.; Menezes, Luciana S.; Milardi, Marco; Miranda, Marcela; Moser, Gleyci A.O.; Mueller, Joerg; Niittynen, Pekka; Norkko, Alf; Nowak, Arkadiusz; Ometto, Jean P.; Ovaskainen, Otso; Overbeck, Gerhard E.; Pacheco, Felipe S.; Pajunen, Virpi; Palpurina, Salza; Picazo, Felix; Campos, Juan Antonio; Rodil, Iván F.; Sabatini, Francesco M.; Salingre, Shira; De Sanctis, Michele; Segura, Angel M.; Da Silva, Lucia H.S.; Stevanovic, Zora D.; Swacha, Grzegorz; Teittinen, Anette; Tolonen, Kimmo T.; Tsiripidis, Ioannis; Virta, Leena; Wang, Beixin; Wang, Jianjun; Weisser, Wolfgang; Xu, Yuan; Soininen, Janne (Wiley, 2022-07)
    AIM : Understanding the variation in community composition and species abundances (i.e., β-diversity) is at the heart of community ecology. A common approach to examine β-diversity is to evaluate directional variation ...
  • Distribution of microarthropods across altitude and aspect in the sub-Antarctic : climate change implications for an isolated oceanic island 
    Hugo-Coetzee, Elizabeth A.; Le Roux, Peter Christiaan (Acarologia, 2018-09-28)
    Current climate change is altering the distribution of species across both broad and fine scales. Examining contemporary species distributions along altitudinal gradients is one approach to predicting species future ...
  • Ecosystem engineering through aardvark (Orycteropus afer) burrowing : mechanisms and effects 
    Haussmann, N.S. (Natalie); Louw, Michelle Anne; Lewis, Simone; Nicol, Keegan J.H.; Van der Merwe, Stephni; Le Roux, Peter Christiaan (Elsevier, 2018-08)
    Burrowing mammals are often considered to be ecosystem engineers as burrowing disturbs the soil, thereby potentially changing resource availability and affecting habitat conditions for other species. After their excavation, ...
  • Empty Gonometa postica cocoons function as nest sites and shelters for arboreal ants 
    Raath, Morgan Jade; Le Roux, Peter Christiaan; Veldtman, Ruan; Campbell, Heather; Buyens, Isabelle Patricia Rita; Greve, Michelle (Elsevier, 2017-09)
    Arboreal ants use a variety of plant structures as nesting sites, but may also nest in structures created by arboreal ecosystem engineers. We observed, for the first time, ants using empty cocoons of the economically ...
  • Exploring South Africa's southern frontier : a 20-year vision for polar research through the South African National Antarctic Programme 
    Ansorge, Isabelle J.; Skelton, Paul; Bekker, Annie; De Bruyn, P.J. Nico; Butterworth, Doug; Cilliers, Pierre; Cooper, John; Cowan, Don A.; Dorrington, Rosemary; Fawcett, Sarah; Fietz, Susanne; Findlay, Kenneth Pierce; Froneman, P. William; Grantham, Geoff H.; Greve, Michelle; Hedding, D.W. (David William); Hofmeyr, G.J. Greg (Gordon John Gregory); Kosch, Michael; Le Roux, Peter Christiaan; Lucas, Mike; MacHutchon, Keith; Meiklejohn, K.I. (Ian); Nel, Werner; Pistorius, Pierre Anton; Ryan, Peter G.; Stander, Johan; Swart, Sebastiaan; Treasure, Anne; Vichi, Marcello; Jaansen van Vuuren, Bettine J. (Academy of Science of South Africa, 2017-05)
    Antarctica, the sub-Antarctic islands and surrounding Southern Ocean are regarded as one of the planet’s last remaining wildernesses, ‘insulated from threat by [their] remoteness and protection under the Antarctic ...
  • Exposing wind stress as a driver of fine-scale variation in plant communities 
    Momberg, Mia; Hedding, David William; Luoto, Miska; Le Roux, Peter Christiaan (Wiley, 2021-05)
    The effects of temperature and precipitation, and the impacts of changes in these climatic conditions, on plant communities have been investigated extensively. The roles of other climatic factors are, however, comparatively ...
  • Factors determining nest-site selection of surface-nesting seabirds : a case study on the world's largest pelagic bird, the Wandering Albatross (Diomedea exulans) 
    Momberg, Mia; Ryan, Peter G.; Hedding, David William; Schoombie, Janine; Goddard, Kyle Andrew; Craig, K.J. (Kenneth); Le Roux, Peter Christiaan (Wiley, 2023-01)
    Several factors may drive bird nest-site selection, including predation risk, resource avail-ability, weather conditions and interaction with other individuals. Understanding the drivers affecting where birds nest is ...
  • Fine- and broad-scale distribution of a cushion plant species : patterns and predictors for Euphorbia clavarioides 
    Momberg, Mia; Greve, Michelle; Van der Merwe, Stephni; Le Roux, Peter Christiaan (Taylor and Francis, 2018)
    Cushion plants are a key Arctic, Antarctic, and alpine growth form, with many cushion-forming species strongly affecting community structure in abiotically stressful environments. Despite their ecological importance, ...
  • Fine- and broad-scale distribution of a cushion plant species : patterns and predictors for Euphorbia clavarioides  
    Momberg, Mia; Greve, Michelle; Van der Merwe, Stephni; Le Roux, Peter Christiaan (Taylor and Francis, 2018)
    Cushion plants are a key Arctic, Antarctic, and alpine growth form, with many cushion-forming species strongly affecting community structure in abiotically stressful environments. Despite their ecological importance, ...
  • Geomorphological processes shape plant community traits in the Arctic 
    Kemppinen, Julia; Niittynen, Pekka; Happonen, Konsta; Le Roux, Peter Christiaan; Aalto, Juha; Hjort, Jan; Maliniemi, Tuija; Karjalainen, Olli; Rautakoski, Helena; Luoto, Miska (Wiley, 2022-07)
    AIM : Geomorphological processes profoundly affect plant establishment and distributions, but their influence on functional traits is insufficiently understood. Here, we unveil trait–geomorphology relationships in Arctic ...
  • Grazing and ecosystem service delivery in global drylands 
    Maestre, Fernando T.; Le Bagousse-Pinguet, Yoann; Delgado-Baquerizo, Manuel; Eldridge, David J.; Saiz, Hugo; Berdugo, Miguel; Gozalo, Beatriz; Ochoa, Victoria; Guirado, Emilio; Garcia-Gomez, Miguel; Valencia, Enrique; Gaitan, Juan J.; Asensio, Sergio; Mendoza, Betty J.; Plaza, Cesar; Diaz-Martinez, Paloma; Rey, Ana; Hu, Hang-Wei; He, Ji-Zheng; Wang, Jun-Tao; Lehmann, Anika; Rillig, Matthias C.; Cesarz, Simone; Eisenhauer, Nico; Martinez-Valderrama, Jaime; Moreno-Jimenez, Eduardo; Sala, Osvaldo; Abedi, Mehdi; Ahmadian, Negar; Alados, Concepcion L.; Aramayo, Valeria; Amghar, Fateh; Arredondo, Tulio; Ahumada, Rodrigo J.; Bahalkeh, Khadijeh; Ben Salem, Farah; Blaum, Niels; Boldgiv, Bazartseren; Bowker, Matthew A.; Bran, Donaldo; Bu, Chongfeng; Canessa, Rafaella; Castillo-Monroy, Andrea P.; Castro, Helena; Castro, Ignacio; Castro-Quezada, Patricio; Chibani, Roukaya; Conceicao, Abel A.; Currier, Courtney M.; Darrouzet-Nardi, Anthony; Deak, Balazs; Donoso, David A.; Dougill, Andrew J.; Duran, Jorge; Erdenetsetseg, Batdelger; Espinosa, Carlos I.; Fajardo, Alex; Farzam, Mohammad; Ferrante, Daniela; Frank, Anke S.K.; Fraser, Lauchlan H.; Gherardi, Laureano A.; Greenville, Aaron C.; Guerra, Carlos A.; Gusman-Montalvan, Elizabeth; Hernandez-Hernandez, Rosa M.; Holzel, Norbert; Huber-Sannwald, Elisabeth; Hughes, Frederic M.; Jadan-Maza, Oswaldo; Jeltsch, Florian; Jentsch, Anke; Kaseke, Kudzai F.; Kobel, Melanie; Koopman, Jessica E.; Leder, Cintia V.; Linstadter, Anja; Le Roux, Peter Christiaan; Li, Xinkai; Liancourt, Pierre; Liu, Jushan; Louw, Michelle Anne; Maggs‑Kolling, Gillian; Makhalanyane, Thulani Peter; Issa, Oumarou Malam; Manzaneda, Antonio J.; Marais, Eugene; Mora, Juan P.; Moreno, Gerardo; Munson, Seth M.; Nunes, Alice; Oliva, Gabriel; Onatibia, Gaston R.; Peter, Guadalupe; Pivari, Marco O.D.; Pueyo, Yolanda; Quiroga, R. Emiliano; Rahmanian, Soroor; Reed, Sasha C.; Rey, Pedro J.; Richard, Benoit; Rodriguez, Alexandra; Rolo, Victor; Rubalcaba, Juan G.; Ruppert, Jan C.; Salah, Ayman; Schuchardt, Max A.; Spann, Sedona; Stavi, Ilan; Stephens, Colton R.A.; Swemmer, Anthony M.; Teixido, Alberto L.; Thomas, Andrew D.; Throop, Heather L.; Tielborger, Katja; Travers, Samantha; Val, James; Valko, Orsolya; Van den Brink, Liesbeth; Ayuso, Sergio Velasco; Velbert, Frederike; Wamiti, Wanyoike; Wang, Deli; Wang, Lixin; Wardle, Glenda M.; Yahdjian, Laura; Zaady, Eli; Zhang, Yuanming; Zhou, Xiaobing; Singh, Brajesh K.; Gross, Nicolas (American Association for the Advancement of Science, 2022-11)
    Grazing represents the most extensive use of land worldwide. Yet its impacts on ecosystem services remain uncertain because pervasive interactions between grazing pressure, climate, soil properties, and biodiversity may ...
  • Incorporating biotic interactions in the distribution models of African wild silk moths (Gonometa species, Lasiocampidae) using different representations of modelled host tree distributions 
    Raath, Morgan Jade; Le Roux, Peter Christiaan; Veldtman, Ruan; Greve, Michelle (Wiley, 2018-05)
    Biotic interactions influence species niches and may thus shape distributions. Nevertheless, species distribution modelling has traditionally relied exclusively on environmental factors to predict species distributions, ...
  • Incorporating dominant species as proxies for biotic interactions strengthens plant community models 
    Le Roux, Peter Christiaan; Pellissier, Loïc; Wisz, Mary S.; Luoto, Miska (Wiley-Blackwell, 2014-05)
    1. Biotic interactions exert considerable influence on the distribution of individual species and should, thus, strongly impact communities. Implementing biotic interactions in spatial models of community assembly is ...
  • The influence of life history characteristics on flea (Siphonaptera) species distribution models 
    Van der Mescht, Luther; Le Roux, Peter Christiaan; Matthee, Conrad A.; Raath, Morgan Jade; Matthee, Sonja (BioMed Central, 2016-03-29)
    BACKGROUND : Ectoparasites exhibit pronounced variation in life history characteristics such as time spent on the host and host range. Since contemporary species distribution (SD) modelling does not account for differences ...
  • Interspecific facilitation mediates the outcome of intraspecific interactions across an elevational gradient 
    Raath-Kruger, Morgan J.; Schob, Christian; McGeoch, Melodie A.; Le Roux, Peter Christiaan (Ecological Society of America, 2021-01)
    Where interspecific facilitation favors the establishment of high densities of a beneficiary species, strong intraspecific competition may subsequently impede beneficiary performance. Consequently, the negative influence ...