TY - SOUND TI - Techno-Birds AU - Cooper, C.B. DA - 2004/3// PY - 2004/3// M3 - Featured presentation ER - TY - JOUR TI - Bluebirds put their eggs into more than one basket AU - Cooper, C.B. AU - Phillips, T.R. AU - Hochachka, W.M. AU - Dhondt, A.A. T2 - Birdscope DA - 2004/// PY - 2004/// VL - 18 IS - 3 ER - TY - RPRT TI - Differences in bird foraging behaviour between Sonoran Desert and urban habitats in central Arizona AU - Shochat, Eyal AU - Katti, Madhusudan AU - Lerman, Susannah DA - 2004/// PY - 2004/// ER - TY - RPRT TI - How do humans restructure the biodiversity of the Sonoran desert AU - Hope, Diane AU - Gries, Corinna AU - Warren, Paige AU - Katti, Madhu AU - Stuart, Glenn AU - Oleson, Jake AU - Kaye, Jason T2 - USDA Forest Service Proceedings A3 - U.S. Department of Agriculture, Forest Service DA - 2004/// PY - 2004/// VL - RMRS-P-26 SP - 189–194 M1 - RMRS-P-26 PB - U.S. Department of Agriculture, Forest Service SN - RMRS-P-26 ER - TY - RPRT TI - Point Count Bird Censusing Data Subset for Paper 'EFFECTS OF LAND USE AND VEGETATION COVER ON BIRD COMMUNITIES' Walker et. al AU - Walker, Jason AU - Shochat, Eyal AU - Katti, Madhusudan V. AU - Warren, Paige S. A3 - Environmental Data Initiative DA - 2004/// PY - 2004/// M3 - dataset PB - Environmental Data Initiative UR - https://sustainability-innovation.asu.edu/caplter/data/view/knb-lter-cap.394/ ER - TY - CHAP TI - Conservation biology AU - Walters, Jeffrey R. AU - Cooper, Caren B. AU - Daniels, Susan J. AU - Pasinelli, Gilberto AU - Schiegg, Karin T2 - Ecology and Evolution of Cooperative Breeding in Birds A2 - Koenig, Walter D. A2 - Dickinson, Janis L. AB - The primary objective of conservation is to preserve biodiversity. Biodiversity encompasses not only distinct life forms such as species and subspecies, but also unique adaptations such as cooperative breeding. Cooperatively breeding birds exhibit a variety of distinctive traits that render some species unusually vulnerable to, or resistant to, habitat loss, degradation, and fragmentation, and to the problems inherent to small populations. Especially relevant are extreme philopatry, sensitivity to habitat quality, and the presence of large numbers of non-breeding adults (helpers). To our knowledge, no one has previously assessed how cooperative breeders as a group are faring against the threats to their continued existence they currently face. In this chapter we conduct such an assessment and examine the interaction between the distinctive features of cooperative breeders and the various threats to biodiversity. PY - 2004/4/22/ DO - 10.1017/cbo9780511606816.013 SP - 197–209 PB - Cambridge University Press SN - 9780521530996 9780521822718 9780511606816 UR - http://dx.doi.org/10.1017/cbo9780511606816.013 ER - TY - JOUR TI - Recovery of faunal communities during tropical forest regeneration AU - Dunn, R.R. T2 - Conservation Biology AB - Abstract: As mature tropical forests are cleared, secondary forests may play an important role in the conservation of animal species, depending on how fast animal communities recover during forest regeneration. I reviewed published studies on the recovery of animal species richness and composition during tropical forest regeneration. In 38 of the 39 data sets I examined, conversion of forest to agriculture or pasture substantially reduced species richness. Given suitable conditions for forest recovery, the species richness of the animal taxa considered can be predicted to resemble that of mature forests roughly 20–40 years after land abandonment. At least for ants and birds, however, recovery of species composition appears to take substantially longer than recovery of species richness. Because species richness for many taxa appears to recover relatively rapidly in secondary forests, conservation of secondary forests may be an effective investment in future diversity. The slower recovery of species composition indicates, however, that some species will require stands of mature forest to persist. DA - 2004/// PY - 2004/// DO - 10.1111/j.1523-1739.2004.00151.x VL - 18 IS - 2 SP - 302-309 UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-1842664441&partnerID=MN8TOARS KW - disturbance KW - diversity KW - forest regeneration KW - secondary forest KW - species richness KW - tropical ER - TY - JOUR TI - Managing the tropical landscape: a comparison of the effects of logging and forest conversion to agriculture on ants, birds, and lepidoptera AU - Dunn, Robert R T2 - Forest Ecology and Management AB - Most tropical forest will not be conserved, but instead will be used in some way, most often for logging, agriculture, or both. Management of tropical forest landscapes for diversity depends upon an understanding of how many and which species can persist in different types of managed ecosystems. I compared the effects of logging and conversion of forest to agriculture or pasture on ant, bird, and lepidoptera species richness by combining data from 34 studies from tropical forests in Africa, Asia, and the Americas. Forest conversion to agriculture or pasture decreased the species richness of ants and of animals overall, whereas logging did not decrease species richness overall or of ants, birds or lepidoptera. After sites were abandoned, the diversity of logged sites did not change over time. In contrast, the diversity of old fields increased with time. Ants, birds, and lepidoptera responded similarly to forest clearance or disturbance, whether it be for logging or conversion to agriculture or pasture. In terms of faunal diversity, selective logging appears to have much less impact on faunal diversity than does forest conversion, both initially and after sites are abandoned. DA - 2004/4// PY - 2004/4// DO - 10.1016/j.foreco.2003.12.008 VL - 191 IS - 1-3 SP - 215-224 J2 - Forest Ecology and Management LA - en OP - SN - 0378-1127 UR - http://dx.doi.org/10.1016/j.foreco.2003.12.008 DB - Crossref KW - forest conversion KW - effects of logging KW - tropical landscape ER - TY - JOUR TI - Species coextinctions and the biodiversity crisis AU - Koh, L.P. AU - Dunn, R.R. AU - Sodhi, N.S. AU - Colwell, R.K. AU - Proctor, H.C. AU - Smith, V.S. T2 - Science AB - To assess the coextinction of species (the loss of a species upon the loss of another), we present a probabilistic model, scaled with empirical data. The model examines the relationship between coextinction levels (proportion of species extinct) of affiliates and their hosts across a wide range of coevolved interspecific systems: pollinating Ficus wasps and Ficus, parasites and their hosts, butterflies and their larval host plants, and ant butterflies and their host ants. Applying a nomographic method based on mean host specificity (number of host species per affiliate species), we estimate that 6300 affiliate species are "coendangered" with host species currently listed as endangered. Current extinction estimates need to be recalibrated by taking species coextinctions into account. DA - 2004/// PY - 2004/// DO - 10.1126/science.1101101 VL - 305 IS - 5690 SP - 1632-1634 UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-4644278888&partnerID=MN8TOARS ER - TY - JOUR TI - Tits, noise and urban bioacoustics AU - Katti, Madhusudan AU - Warren, Paige S T2 - Trends in Ecology & Evolution AB - Humans, particularly in cities, are noisy. Researchers are only just beginning to identify the implications of an increase in noise for species that communicate acoustically. In a recent paper, Slabbekoorn and Peet show, for the first time, that some birds can respond to anthropogenically elevated noise levels by altering the frequency structure of their songs. Cities are fruitful grounds for research on the evolution of animal communication systems, with broader implications for conservation in human-altered environments. DA - 2004/3// PY - 2004/3// DO - 10.1016/j.tree.2003.12.006 VL - 19 IS - 3 SP - 109-110 J2 - Trends in Ecology & Evolution LA - en OP - SN - 0169-5347 UR - http://dx.doi.org/10.1016/j.tree.2003.12.006 DB - Crossref ER - TY - JOUR TI - Linking Optimal Foraging Behavior to Bird Community Structure in an Urban‐Desert Landscape: Field Experiments with Artificial Food Patches AU - Shochat, Eyal AU - Lerman, Susannah B. AU - Katti, Madhusudan AU - Lewis, David B. T2 - The American Naturalist AB - Urban bird communities exhibit high population densities and low species diversity, yet mechanisms behind these patterns remain largely untested. We present results from experimental studies of behavioral mechanisms underlying these patterns and provide a test of foraging theory applied to urban bird communities. We measured foraging decisions at artificial food patches to assess how urban habitats differ from wildlands in predation risk, missed-opportunity cost, competition, and metabolic cost. By manipulating seed trays, we compared leftover seed (giving-up density) in urban and desert habitats in Arizona. Deserts exhibited higher predation risk than urban habitats. Only desert birds quit patches earlier when increasing the missed-opportunity cost. House finches and house sparrows coexist by trading off travel cost against foraging efficiency. In exclusion experiments, urban doves were more efficient foragers than passerines. Providing water decreased digestive costs only in the desert. At the population level, reduced predation and higher resource abundance drive the increased densities in cities. At the community level, the decline in diversity may involve exclusion of native species by highly efficient urban specialists. Competitive interactions play significant roles in structuring urban bird communities. Our results indicate the importance and potential of mechanistic approaches for future urban bird community studies. DA - 2004/8// PY - 2004/8// DO - 10.1086/422222 VL - 164 IS - 2 SP - 232-243 J2 - The American Naturalist LA - en OP - SN - 0003-0147 1537-5323 UR - http://dx.doi.org/10.1086/422222 DB - Crossref KW - bird communities KW - Central Arizona-Phoenix Long-Term Ecological Research project KW - coexistence KW - community structure KW - giving-up density KW - urban ecology ER -