Effects of habitat loss, habitat fragmentation, and isolation on the density, species richness, and distribution of ladybeetles in manipulated alfalfa landscapes

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dc.contributor.authorZaviezo, Tania
dc.contributor.authorGrez, Audrey A.
dc.contributor.authorEstades, Cristian F.
dc.contributor.authorPerez, Astrid
dc.date.accessioned2024-01-10T12:05:10Z
dc.date.available2024-01-10T12:05:10Z
dc.date.issued2006
dc.description.abstract1. Habitat loss and fragmentation are the main causes of changes in the distribution and abundance of organisms, and are usually considered to negatively affect the abundance and species richness of organisms in a landscape. Nevertheless, habitat loss and fragmentation have often been confused, and the reported negative effects may only be the result of habitat loss alone, with habitat fragmentation having nil or even positive effects on abundance and species richness.
dc.description.abstract2. Manipulated alfalfa micro-landscapes and coccinellids (Coleoptera: Coccinellidae) are used to test the effects habitat loss (0% or 84%), fragmentation (4 or 16 fragments), and isolation (2 or 6 m between fragments) on the density, species richness, and distribution of native and exotic species of coccinellids.
dc.description.abstract3. Generally, when considering only the individuals in the remaining fragments, habitat loss had variable effects while habitat fragmentation had a positive effect on the density of two species of coccinellids and on species richness, but did not affect two other species. Isolation usually had no effect. When individuals in the whole landscape were considered, negative effects of habitat loss became apparent for most species, but the positive effects of fragmentation remained only for one species.
dc.description.abstract4. Native and exotic species of coccinellids did not segregate in the different landscapes, and strong positive associations were found most often in landscapes with higher fragmentation and isolation.
dc.description.abstract5. The opposing effects of habitat loss and fragmentation may result in a nil global effect; therefore it is important to separate their effects when studying populations in fragmented landscapes.
dc.fechaingreso.objetodigital2024-05-07
dc.format.extent11 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1111/j.1365-2311.2006.00830.x
dc.identifier.eissn1365-2311
dc.identifier.issn0307-6946
dc.identifier.urihttps://doi.org/10.1111/j.1365-2311.2006.00830.x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75960
dc.identifier.wosidWOS:000242862600014
dc.information.autorucAgronomía e Ing. Forestal;Zaviezo T;S/I;62543
dc.issue.numero6
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final656
dc.pagina.inicio646
dc.publisherWILEY
dc.revistaECOLOGICAL ENTOMOLOGY
dc.rightsacceso restringido
dc.subjectCoccinellidae
dc.subjectfragmentation
dc.subjecthabitat loss
dc.subjectisolation
dc.subjectladybeetles
dc.subjectmanipulative experiments
dc.subjectBIOLOGICAL-CONTROL
dc.subjectPOPULATION-DENSITY
dc.subjectCOCCINELLA-SEPTEMPUNCTATA
dc.subjectCOMPETITIVE COEXISTENCE
dc.subjectLADYBIRDS COLEOPTERA
dc.subjectPREDATORY INSECTS
dc.subjectSPATIAL SCALES
dc.subjectDYNAMICS
dc.subjectCONSERVATION
dc.subjectABUNDANCE
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.ods02 Zero Hunger
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa02 Hambre cero
dc.titleEffects of habitat loss, habitat fragmentation, and isolation on the density, species richness, and distribution of ladybeetles in manipulated alfalfa landscapes
dc.typeartículo
dc.volumen31
sipa.codpersvinculados62543
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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