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  • Longitudinal Trends of Bird Community Richness and Abundance . . .
    of bird richness and abundance, there is still uncertainty about the extent to which climate, topography and vegetation influence richness and abundance patterns seen in local extents of the northern Sonoran Desert I investigated how bird richness and abundance differed between years and seasons and which environmental variables most
  • Explore All Status and Trends Species - eBird Science
    High-resolution data, visualizations, and tools describing where bird populations occur and how they change through time—powered by eBird data and updated annually, providing you with the best available science
  • Quantifying abundance of fruits for birds in tropical habitats
    I also recorded the number of different plant and tree species having flowers, fruits, or seeds for each visit, and assigned them an abundance category score based on estimated counts: counts of 1
  • Endemicity and land-use type influence the abundance– range . . .
    mean global abundance with global range size (Theuerkauf et al , 2017) Birds along elevational gradients on tropical islands are excellent systems to study ARR, because (a) the elevational gradient allows us to measure abundance and range size (elevational breadth) at the same spatial scale Therefore, comparing abundances sampled at
  • Explore All Status and Trends Species - eBird Science
    High-resolution data, visualizations, and tools describing where bird populations occur and how they change through time—powered by eBird data and updated annually, providing you with the best available science
  • Vineyard Edges Increase Bird Richness and Abundance and . . .
    Agricultural landscapes significantly impact biodiversity, particularly within vineyard ecosystems where the configuration of native vegetation and vineyard edges plays a pivotal role This study investigated the structure of bird communities across vineyards, their edges, and adjacent native vegetation, utilizing generalized linear mixed models to analyze the influence of surrounding land
  • Bird species assemblages differ, while functional richness is . . .
    The interaction of non-native and native species in urban environments can lead to an increase in bird abundance of dominant non-native species with a loss in native species richness (Marzluff, 2001, McKinney, 2008, Olden, 2006, van Heezik et al , 2008) We suggest that urban planners identify ways to expand the diversity of urban habitats to





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