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Documents disponibles écrits par cet auteur (23)
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Article
Vincent Otieno Onyango, Auteur ; Magdalena Ginko, Auteur ; George Gatere Ndiritu, Auteur ; Laurence Cousseau, Auteur ; Janne Heiskanen, Auteur ; Gladys Nyakeru Kung′u, Auteur ; Peter Njoroge, Auteur ; Mwangi Githiru, Auteur ; Petri Pellikka, Auteur ; Luc Lens, Auteur ; Beate Apfelbeck, AuteurHabitat fragmentation and degradation are major problems in tropical forests, leading to a decline in biodiversity. However, it is often unclear which aspects of habitat change are responsible for the decline of specific species. Physiological s[...]
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Gelaye Gebremichael, Auteur ; Anagaw Atickem, Auteur ; Seid Tiku Mereta, Auteur ; Luc Lens, AuteurHabitat loss and fragmentation, as consequences of anthropogenic land use changes, are the main drivers of global biodiversity loss. In this study, we evaluate the response of functional guilds in forest understorey bird communities to the amoun[...]
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Thomas Cansse, Auteur ; Luc Lens, Auteur ; Grace J. Sutton, Auteur ; Jonathan A. Botha, Auteur ; John P.Y. Arnould, AuteurFor animals which exploit predictable food resources, greater foraging site fidelity has been hypothesized to lead to increased foraging efficiency. However, evidence for this in free-ranging species is limited. In the present study, foraging si[...]
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Thomas Brooks, Auteur ; Luc Lens, Auteur ; Jim Barnes, Auteur ; Roger Barnes, Auteur ; John Kageche Kihuria, Auteur ; Christine Wilder, AuteurThe forests of the Taita Hills of south-east Kenya are of great importance to conservation, holding three endemic birds and many other endemic taxa. We surveyed birds in their remaining forest fragments in July-August 1996, and followed up these[...]
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Peter Njorge, Auteur ; Leon A. Bennun, Auteur ; Luc Lens, AuteurWe examined and compared territoriality and habitat use of two congeneric babbler species in Kirinyaga district, central Kenya, with the aim of explaining their differences in global conservation status. Hinde's Babbler Turdoides hindei is a sca[...]
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Selamawit Negassa Chawaka, Auteur ; Seid Tiku Mereta, Auteur ; Peter L. M. Goethals, Auteur ; Luc Lens, Auteur ; Pieter Boets, AuteurAbstract. The diversity and abundance of wetland birds have been threatened by increasing anthropogenic activities during recent decades. The objective of this study was to determine the effect of human-induced disturbance on bird species richne[...]
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Davy S. Bosman, Auteur ; Eric W. M. Stienen, Auteur ; Luc Lens, AuteurAmong most species of birds, survival from hatching throughout the first year of life is generally lower than subsequent survival rates. Survival of young birds during their first year may depend on a combination of selection, learning, unpredic[...]
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Job Aben, Auteur ; Greta Bocedi, Auteur ; Stephen C. F. Palmer, Auteur ; Petri Pellikka, Auteur ; Diederik Strubbe, Auteur ; Caspar Hallmann, Auteur ; Justin M. J. Travis, Auteur ; Luc Lens, Auteur ; Erik Matthysen, AuteurAs biodiversity hotspots are often characterized by high human population densities, implementation of conservation management practices that focus only on the protection and enlargement of pristine habitats is potentially unrealistic. An altern[...]
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Luc Lens, Auteur
Article
Mwangi Githiru, Auteur ; Luc Lens, AuteurAttrition and fragmentation of natural habitats remains one of the most persistent problems for conservationists. Exactly how habitat loss leads to the loss of biodiversity is not easily pinned down, and varies across species, taxonomic groups a[...]
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Davy S. Bosman, Auteur ; Harry J. P. Vercruijsse, Auteur ; Eric W. M. Stienen, Auteur ; Magda Vincx, Auteur ; Liesbeth de Neve, Auteur ; Luc Lens, AuteurStudies of migration have revealed multiple trade-offs with other life-history traits that may underlie observed variation in migratory properties among ages and sexes. To assess whether, and to what extent, body size and/or sex-specific differe[...]
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Mwangi Githiru, Auteur ; Luc Lens, Auteur ; Leon A. Bennun, Auteur ; Christopher Perrins, AuteurWe studied the presence of 'floaters', i.e. non-territorial individuals roaming occupied territories awaiting future breeding opportunities, in two separate White-starred Robin (Pogonocichla stellata) populations at the Taita Hills, Kenya, using[...]
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Luc Lens, Auteur ; Hilde Eggermont, AuteurAs anthropogenic stress increasingly affects the viability of natural populations of animals and plants, conservation ecologists are challenged to identify vulnerable populations before their demographic and/or genetic properties become irrevers[...]
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Greet De Coster, Auteur ; Erik Matthysen, Auteur ; Jennifer R. A. Cahill, Auteur ; Luc Lens, AuteurThe Giant Conebill Oreomanes fraseri is a specialist of high Andean Polylepis forest remnants. With the aid of radio-tracking and visual observations, the average 100% minimum convex polygon home range size of seven adult individuals was 7.15 ha[...]
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Evan R. Buechley, Auteur ; Çagan H. Sekercioglu, Auteur ; Anagaw Atickem, Auteur ; Gelaye Gebremichael, Auteur ; James Kuria Ndungu, Auteur ; Bruktawit Abdu Mahamued, Auteur ; Tifases Beyene, Auteur ; Tariku Mekonnen, Auteur ; Luc Lens, AuteurCoffee is the most important tropical commodity and is grown in high-priority areas for biological conservation. There is abundant literature on the conservation value of coffee farms internationally, but there has been little research on this t[...]
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Greet De Coster, Auteur ; Liesbeth de Neve, Auteur ; Luc Lens, AuteurAmong the most eye-catching traits of avian eggs are their background coloration and pigmentation, consisting in many passerine birds of dark protoporphyrin spots. Although variation in protoporphyrin pigmentation among clutches has been shown t[...]
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Toon Spanhove, Auteur ; Valerie Lehouck, Auteur ; Luc Lens, AuteurFragmentation of continuous habitat blocks into small, isolated patches may Cause gradual replacement of habitat specialists by generalists and edge-dwelling species, thereby altering trophic interactions within communities. When fragmentation p[...]
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Greet De Coster, Auteur ; Liesbeth de Neve, Auteur ; Simon Verhulst, Auteur ; Luc Lens, AuteurMothers can adjust the phenotype of their offspring to the local environment through a modification of their egg investment and/or nestling provisioning. However, offspring health may be severely impaired if the conditions experienced by nestlin[...]
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Stijn Cooleman, Auteur ; Luc Lens, Auteur ; Eckhart Kujken, Auteur ; Anny Anselin, AuteurDans Aves (44(3) 2007)
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Toon Spanhove, Auteur ; Tom Callens, Auteur ; Caspar A. Hallmann, Auteur ; Petri Pellikka, Auteur ; Luc Lens, AuteurHigh levels of nest predation influence the population dynamics of many tropical birds, especially when deforestation alters nest predator communities. The consequences of tropical forest fragmentation on nest predation, however, remain poorly u[...]
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Tom Rosendahl Larsen, Auteur ; Graham D. Fairhurst, Auteur ; Siegrid De Baere, Auteur ; Siska Croubels, Auteur ; Wendt Muller, Auteur ; Liesbeth de Neve, Auteur ; Luc Lens, AuteurInter- and intra-clutch variation in egg corticosterone (CORT), the major glucocorticoid in birds, may provide insights into how maternal stress levels vary with the timing of breeding and with laying order. Common analytical methods (e.g. immun[...]
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Ronald K. Mulwa, Auteur ; Leon A. Bennun, Auteur ; Callistus K. P. O. Ogol, Auteur ; Luc Lens, AuteurOur study focused on the Taita White-eye Zosterops silvanus, one of three bird species endemic to the Taita Hill forests, south-east Kenya. Formerly considered Critically Endangered, Taita White-eye has been down-listed to Endangered following t[...]
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Valerie Lehouck, Auteur ; Toon Spanhove, Auteur ; Alemu Gonsamo, Auteur ; Norbert Cordeiro, Auteur ; Luc Lens, AuteurTropical forest fragmentation affects animal and plant populations in different ways. For plants, early stages (seed to seedling) are more sensitive to habitat alteration than adults, and can shape their future spatial patterns. Therefore, study[...]
