Effects of Climate and Exurban Development on Nest Predation and Predator Presence in the southern Appalachian Mountains (U.S.A.)

Lumpkin, Heather A.; Pearson, Scott M.; Turner, Monica G.

doi:10.1111/j.1523-1739.2012.01851.x

Cited by 16 publications

(10 citation statements)

References 58 publications

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“…Our results showed that Blue Jays increased in occurrence with mean temperature, and American Crows increased with building density and mean temperature (Table ). Lumpkin et al () found that nest predation rates increased at warmer, low‐elevation sites and as building density increased. They documented predation by corvids and a variety of mammal species.…”

Section: Discussionmentioning

confidence: 99%

Effects of Exurban Development and Temperature on Bird Species in the Southern Appalachians

Lumpkin

Pearson

2013

Conservation Biology

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Land-use dynamics and climatic gradients have large effects on many terrestrial systems. Exurban development, one of the fastest growing forms of land use in the United States, may affect wildlife through habitat fragmentation and building presence may alter habitat quality. We studied the effects of residential development and temperature gradients on bird species occurrence at 140 study sites in the southern Appalachian Mountains (North Carolina, U.S.A.) that varied with respect to building density and elevation. We used occupancy models to determine 36 bird species' associations with building density, forest canopy cover, average daily mean temperature, and an interaction between building density and mean temperature. Responses varied with habitat requirement, breeding range, and migration distance. Building density and mean temperature were both included in the top occupancy models for 19 of 36 species and a building density by temperature interaction was included in models for 8 bird species. As exurban development expands in the southern Appalachians, interior forest species and Neotropical migrants are likely to decline, but shrubland or edge species are not likely to benefit. Overall, effects of building density were greater than those of forest canopy cover. Exurban development had a greater effect on birds at high elevations due to a greater abundance of sensitive forest-interior species and Neotropical migrants. A warming climate may exacerbate these negative effects.

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Section: Discussionmentioning

confidence: 99%

Effects of Exurban Development and Temperature on Bird Species in the Southern Appalachians

Lumpkin

Pearson

2013

Conservation Biology

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“…There was a single paper that reported only a correlation coefficient (Lumpkin et al, 2012), which we used as our effect size. For all other papers we coded each nest as failed (0) or survived (1), ranked urbanization around the nest according to the five levels on an ordinal scale from the least to the most urbanized based on the urbanization scores assigned by us, and ran a Spearman rank correlation between these two variables for each study.…”

Section: Data Extractionmentioning

confidence: 99%

Does Urbanization Affect Predation of Bird Nests? A Meta-Analysis

et al. 2017

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Urbanization can affect interspecific interactions such as predator-prey relationships. Several hypotheses have been postulated to predict how predation on bird nests changes along urbanization gradients; some predict increased and others decreased predation pressures in urban compared to rural habitats. Using a formal meta-analytical approach, we carried out a systematic literature review to test whether predation on natural and artificial bird nests increased or decreased with urbanization. We found that the effect was highly heterogeneous among studies, due to contrasting results between studies that used artificial nests and those that used natural nests. For artificial nests, survival rate tended to decrease with increasing urbanization, with higher predation in more urbanized study sites. For natural nests, survival tended to increase with the level of urbanization. The latter finding supports predictions of the "urban habitats as predation-safe zones" and "urban nest predator paradox" hypotheses, but the effect may be confounded by many studies not distinguishing between predation and other sources of mortality. None of the other considered methodological and ecological variables explained the variation in a robust way. The discrepancy between the results of artificial and natural nest studies may be due to differences in experimental design (e.g., cavity nests have been more commonly studied in natural nest studies), intrinsic differences between the two nest types (e.g., lack of parental nest defense in artificial nests), or sampling bias. We conclude that the direction of the relationship between urbanization and nest predation is likely to depend on the methodology of the study. Therefore, results from studies using different methodologies, particularly natural or artificial nests, should be generalized with caution to avoid over-interpretations.

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“…Opposums are regular mesocarnivore predators of bird nests (Staller et al 2005, Lumpkin et al 2012, Melville et al 2014) and they even prey on poultry (Amador-Alcala et al 2013), although they also eat fruits, invertebrates and other small vertebrates (Eisenberg 1989). The common opossum is sympatric with house finches in the area where birds were captured (Eisenberg 1989).…”

Section: Study Speciesmentioning

confidence: 99%

Evidence that the house finch (Carpodacus mexicanus) uses scent to avoid omnivore mammals

Amo

López‐Rull

Pagán

et al. 2015

Rev. Chil. de Hist. Nat.

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Background: The detection of predator chemical cues is an important antipredatory behaviour as it allows an early assessment of predation risk without encountering the predator and therefore increases survival. For instance, since chemical cues are often by-products of metabolism, olfaction may gather information not only on the identity but also about the diet of predators in the vicinity. Knowledge of the role of olfaction in the interactions of birds with their environment, in contexts as important as predator avoidance, is still scarce. We conducted two two-choice experiments to explore 1) whether the house finch Carpodacus mexicanus can detect the chemical cues of a marsupial predatory mammal, the common opossum (Didelphis marsupialis), and 2) whether its response to such cues is influenced by the recent diet of this omnivorous predator, as this would increase the accuracy with which the risk of predation is assessed. Results: House finches avoided the area of the apparatus containing the scent of the predator, and this effect did not depend on the recent diet (bait used to lace the traps) of the predator. Conclusions: Our results provide clear evidence that house finches detect and use the chemical cues of predators to assess the level of predation risk of an area and avoid it.

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Effects of Climate and Exurban Development on Nest Predation and Predator Presence in the southern Appalachian Mountains (U.S.A.)

Cited by 16 publications

References 58 publications

Effects of Exurban Development and Temperature on Bird Species in the Southern Appalachians

Effects of Exurban Development and Temperature on Bird Species in the Southern Appalachians

Does Urbanization Affect Predation of Bird Nests? A Meta-Analysis

Evidence that the house finch (Carpodacus mexicanus) uses scent to avoid omnivore mammals

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