The effects of habitat loss and fragmentation on updated estimates of the population of the Agulhas Long-billed Lark Certhilauda brevirostris, a South African endemic

Ostrich ◽  
2021 ◽  
Vol 92 (4) ◽  
pp. 243-256
Author(s):  
Steven W Evans
Keyword(s):  
South African ◽  
Habitat Loss ◽  
Habitat Loss And Fragmentation

Potential extinction debt due to habitat loss and fragmentation in subalpine moorland ecosystems

Plant Ecology ◽  
2021 ◽  
Author(s):  
Daichi Makishima ◽  
Rui Sutou ◽  
Akihito Goto ◽  
Yutaka Kawai ◽  
Naohiro Ishii ◽  
...  
Keyword(s):  
Habitat Loss ◽  
Extinction Debt ◽  
Habitat Loss And Fragmentation

Consequences of habitat loss and fragmentation for wetland amphibian assemblages

Wetlands ◽  
1999 ◽  
Vol 19 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Richard M. Lehtinen ◽  
Susan M. Galatowitsch ◽  
John R. Tester
Keyword(s):  
Habitat Loss ◽  
Habitat Loss And Fragmentation

Assessing Mammal Species Losses Due to Habitat Loss and Fragmentation Across the World's Terrestrial Ecoregions

2021 ◽  
Author(s):  
Koen Jacobus Josefus Kuipers ◽  
Jelle P. Hilbers ◽  
John Garcia-Ulloa ◽  
Bente J. Graae ◽  
Roel May ◽  
...  
Keyword(s):  
Habitat Loss ◽  
Mammal Species ◽  
Habitat Loss And Fragmentation

scholarly journals Effects of habitat loss and fragmentation on the abundance and species richness of aphidophagous beetles and aphids in experimental alfalfa landscapes

2008 ◽  
Vol 105 (3) ◽  
pp. 411-420 ◽  
Author(s):  
Audrey A. GREZ ◽  
Tania ZAVIEZO ◽  
Sandra DIAZ ◽  
Bernardino CAMOUSSEIGT ◽  
Galaxia CORTES
Keyword(s):  
Species Richness ◽  
Habitat Loss ◽  
Habitat Loss And Fragmentation

scholarly journals Multi-taxa ecological responses to habitat loss and fragmentation in western Amazonia as revealed by RAPELD biodiversity surveys

2021 ◽  
Vol 51 (3) ◽  
pp. 234-243
Author(s):  
Gabriel M. MOULATLET ◽  
Emmanuel AMBRIZ ◽  
Jennifer GUEVARA ◽  
Karima G. LÓPEZ ◽  
Marina RODES-BLANCO ◽  
...  
Keyword(s):  
Species Composition ◽  
Habitat Loss ◽  
Forest Cover ◽  
Landscape Fragmentation ◽  
Dung Beetles ◽  
Landscape Configuration ◽  
Edge Density ◽  
Logistic Regression Models ◽  
Habitat Loss And Fragmentation ◽  
Taxonomic Groups

ABSTRACT Habitat loss and fragmentation caused by deforestation are important anthropogenic drivers of changes in biodiversity in the Amazon rainforest, and has reached its highest rate in recent decades. However, the magnitude and direction of the effects on species composition and distribution have yet to be fully understood. We evaluated the responses of four taxonomic groups − birds, amphibians, orchid bees, and dung beetles - to habitat loss and fragmentation at both species and assemblage level in the northern Ecuadorian Amazon. We sampled fifteen 250-m long plots in terra-firme forest remnants. We calculated one landscape fragmentation index (fragindex), which considers the proportion of continuous forest cover, edge density and isolation in the landscape, and nine landscape configuration metrics. Logistic regression models and multivariate regression trees were used to analyze species and assemblage responses. Our results revealed that over 80% of birds, amphibians or orchid-bee species, and 60% of dung beetles were negatively affected by habitat loss and fragmentation. Species composition of all taxonomic groups was significantly affected by differences in forest cover and connectivity. Less than 5% of all species were restricted to landscapes with fragindex values higher than 40%. Landscape metrics related to the shape and area of forest patches determined the magnitude and direction of the effect on species responses. Therefore, changes in the landscape configuration of Ecuadorian Amazonia should be minimized to diminish the effects of habitat loss and fragmentation on species occurrence and assemblage composition.

Habitat Loss and Fragmentation

2013 ◽  
pp. 50-58 ◽  
Author(s):  
Heather Bird Jackson ◽  
Lenore Fahrig
Keyword(s):  
Habitat Loss ◽  
Habitat Loss And Fragmentation

scholarly journals Urbanization and Population Genetic Structure of the Panama City crayfish (Procambarus econfinae)

2019 ◽  
Vol 111 (2) ◽  
pp. 204-215
Author(s):  
Sarah I Duncan ◽  
Ellen P Robertson ◽  
Robert J Fletcher ◽  
James D Austin
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Habitat Loss ◽  
Legal Protection ◽  
Habitat Modification ◽  
Panama City ◽  
Habitat Patches ◽  
Anthropogenic Habitat ◽  
Habitat Loss And Fragmentation

Abstract For species with geographically restricted distributions, the impacts of habitat loss and fragmentation on long-term persistence may be particularly pronounced. We examined the genetic structure of Panama City crayfish (PCC), Procambarus econfinae, whose historical distribution is limited to an area approximately 145 km2, largely within the limits of Panama City and eastern Bay County, FL. Currently, PCC occupy approximately 28% of its historical range, with suitable habitat composed of fragmented patches in the highly urbanized western portion of the range and managed plantations in the more contiguous eastern portion of the range. We used 1640 anonymous single-nucleotide polymorphisms to evaluate the effects of anthropogenic habitat modification on the genetic diversity and population structure of 161 PCC sampled from across its known distribution. First, we examined urban habitat patches in the west compared with less-developed habitat patches in the east. Second, we used approximate Bayesian computation to model inferences on the demographic history of eastern and western populations. We found anthropogenic habitat modifications explain the genetic structure of PCC range-wide. Clustering analyses revealed significant genetic structure between and within eastern and western regions. Estimates of divergence between east and west were consistent with urban growth in the mid-20th century. PCC have low genetic diversity and high levels of inbreeding and relatedness, indicating populations are small and isolated. Our results suggest that PCC have been strongly affected by habitat loss and fragmentation and management strategies, including legal protection, translocations, or reintroductions, may be necessary to ensure long-term persistence.

scholarly journals Impact of habitat loss and fragmentation on reproduction, dispersal and species persistence for an endangered Chilean tree

2019 ◽  
Vol 20 (5) ◽  
pp. 973-985
Author(s):  
Tonya A. Lander ◽  
Stephen A. Harris ◽  
Patricia J. Cremona ◽  
David H. Boshier
Keyword(s):  
Habitat Loss ◽  
Species Persistence ◽  
Habitat Loss And Fragmentation

scholarly journals A systematic review reveals changes in where and how we have studied habitat loss and fragmentation over 20 years

2017 ◽  
Vol 212 ◽  
pp. 130-138 ◽  
Author(s):  
Dini Fardila ◽  
Luke T. Kelly ◽  
Joslin L. Moore ◽  
Michael A. McCarthy
Keyword(s):  
Systematic Review ◽  
Habitat Loss ◽  
Habitat Loss And Fragmentation
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