Ecology and Natural History


Elevation range of Cylindropuntia acanthocarpa (Cactaceae) is at least 160-1900 m. Journal of the Arizona-Nevada Academy of Science 49(2): in press. [Gorelick R & Boone J]

Cacti grow smaller in cold environments and larger in warm ones. Cactus and Succulent Journal 93(1): 197-199. [Gorelick R and Gorelick R]


Ultra-thin hairy new shoots on belowground cuttings of recently rooted Cylindropuntia leptocaulis (Cactaceae). Haseltonia 27: 113-115.

Range of Cylindropuntia whipplei (Cactaceae) in New Mexico. Phytoneuron 2020(47): 1-10.


Espostoa (Vatricania) guentheri have unusual cephalia or pseudocephalia. Haseltonia 26: 58-67.


Historical note on rooting succulent leaf cuttings. Haseltonia 24: 63.


Prediction of Arctic plant phenological sensitivity to climate change from historical records. [Zoe A. Panchen and Root Gorelick] Ecology and Evolution 7(5): 1325-1338.


Flowering time across the Canadian Arctic Archipelago may be driven more by microclimate than latitude and elevation. [Zoe A. Panchen and Root Gorelick] International Journal of Plant Sciences 177(8): 661-670.

Subdermal woody thorns with secondary growth may support shoots of senita, Lophocereus schottii (Cactaceae). Haseltonia 22: 18-21. [plus front cover photo]


Flowering and fruiting responses to climate change of two Arctic plant species, purple saxifrage (Saxifraga oppositifolia) and mountain avens (Dryas integrifolia). [Zoe Panchen and Root Gorelick] Arctic Science 1(2): 45-58.

Northern range limit of Opuntia fragilis and the Cactaceae is 56°N, not 58°N. Madroño 62(2): 115-123.

CITES and cacti: a user’s guide by Maurizio Sajeva, H. Noel McGough, Lucy Garrett, Jonas Lüthy, Maurice Tse-Laurence, Catherine Rutherford, and Guilia Sajeva. Plant Science Bulletin 61(2): 73-75.

Why vegetative propagation of leaf cuttings is possible in succulent and semi-succulent plants. Haseltonia 20: 51-57.

Extinction and climate change influence phylogenetic community assembly of North American hoofed mammals. [Danielle L. Fraser, Root Gorelick, Natalia Rybczynski] Biological Journal of the Linnean Society 114(3): 585-594.

Freeze-tolerance of cacti (Cactaceae) in Ottawa, Ontario, Canada. [Root Gorelick, Taly Drezner, Ken Hancock] Madroño 62(1): 32-44.


Defining clonality and individuals in plant evolution. Ideas in Ecology and Evolution 7: 84–88.

Mean annual precipitation explains spatiotemporal patterns of Cenozoic mammal beta diversity and latitudinal diversity gradients in North America. [Danielle L. Fraser, Christopher Hassall, Root Gorelick, Natalia Rybczynski]. PLoS One 9(9): e0106499 [10 pages].
Supporting files [44 pages].

Indigenous sciences are not pseudosciences. Ideas in Ecology and Evolution 7: 43-55.

Morphology and development of sunken terminal cephalium in Discocactus (Cactaceae). Madroño 61(2): 194-200.

Kin recognition by roots occurs in cycads and probably in conifers. [Root Gorelick and Thomas E. Marler] Communicative & Integrative Biology 7(1): e28009. [2 pages]

Axillary branching of lateral cephalia in Cactaceae is not constrained by tilting of shoot apices. Haseltonia 19: 13-16.


Measures of diversity should include both matrix and vector inputs. Ecological Economics 86: 211-212.

What is natural history? CSEE Bulletin 14: 17-19.


Theory may not be definable and its development is not efficient. Ideas in Ecology & Evolution 5: 25-26.

A good start in life: access to preferred temperatures during gravidity improves offspring quality in the Children’s python (Antaresia childreni). [Sophie Lorioux, Dale DeNardo, Root Gorelick, and Olivier Lourdais]. Journal of Experimental Biology 215(8): 1346-1353.


Do we have a consistent terminology for species diversity? The fallacy of true diversity. Oecologia 67(4): 885-888.

What is theory? Ideas in Ecology and Evolution 4: 1-10.

Axillary branching of lateral cephalia of Coleocephalocereus (Cactaceae). [Root Gorelick and Marlon Machado]. Haseltonia 17: 35-41.

Euphorbia antiquorum and James Bond. Cactus and Succulent Journal 84(5): 244-246.


Multi-way multi-group segregation and diversity indices [Root Gorelick and Susan Bertram] PLoS One 5(6): e19102. [6 pages]


Review of The biology of deserts by David Ward. Plant Science Bulletin 55(2): 78-79.

Swimming eastern chipmunks, Tamias striatus, and hairy-tailed mole, Parascalops breweri, in Kawartha Highlands Provincial Park, Ontario [Root Gorelick and Susan Bertram]. Canadian Field-Naturalist 122(1): 73-75.


Species richness and the analytical geometry of latitudinal and altitudinal gradients. Acta Biotheoretica 56(3): 197-203.

Review of Ribbon of green: change in riparian vegetation in the southwestern United States by Robert H. Webb, Stanley A. Leake, and Raymond M. Turner. Plant Science Bulletin 54(1): 31.


Emergence of increased division of labor as a function of group size. [Raphael Jeanson, Jennifer Fewell, Root Gorelick, and Susan Bertram]. Behavioural Ecology & Sociobiology 62(2): 289-298.

Cochemiea halei on peninsular Baja California Sur. Cactus and Succulent Journal 79(6): 274-275.

Review of Structure and function of a Chihuahuan Desert ecosystem edited by Kris M. Havstad, Laura F. Huenneke and William H. Schlesinger. Plant Science Bulletin 53(4): 168-169.

Quantifying division of labor: Borrowing tools from sociobiology, sociology, information theory, landscape ecology, and biogeography [Root Gorelick and Susan Bertram]. Insectes Sociaux 54(2): 105-112.

Sex change in cycads: cases, causes, and chemistry [Roy Osborne and Root Gorelick]. Memoirs of the New York Botanical Garden 97: 335-345.

Achlorophyllous Mammillaria grahamii in Tempe, Arizona. Cactus and Succulent Journal 79(1): 4-6.


Combining species richness and abundance in a single diversity index using matrix analogues of Shannon’s and Simpson’s indices. Ecography 29(4): 525-530.

Coryphantha dasyacantha found in New Mexico…and the cacti at Anthony Gap. Cactus and Succulent Journal 78(4): 184-189.

Review of Plant-pollinator interactions: from specialization to generalization edited by Nickolas M. Waser and Jeff Ollerton. Plant Science Bulletin 52(4): 139-140.

Review of The geographic mosaic of coevolution by John N. Thompson. Plant Science Bulletin 52(3): 100-101.


Environmentally-alterable additive genetic effects. Evolutionary Ecology Research 7(3): 371-379.

Distribution of Ferocactus emoryi (Cactaceae) in Arizona [Root Gorelick and Shannon Doan]. Bradleya 23: 31-40.

Review of Sonoran Desert plants: an ecological atlas by Raymond M. Turner, Janice E. Bowers and Tony L. Burgess. Plant Science Bulletin 51(4): 146-147.

Review of Food plants of the Sonoran Desert by Wendy C. Hodgson. Cactus and Succulent Journal 77(3): 129.


Normalized mutual entropy in biology: quantifying division of labor [Root Gorelick, Susan Bertram, Peter Killeen, and Jennifer Fewell]. American Naturalist 164(5): 677-682.

Epipactis gigantea in Marble Canyon. Orchids 73(7): 488.


Colony response to graded resource changes: an analytical model of the influence of genotype, environment, and inheritance pattern [Susan Bertram, Root Gorelick, and Jennifer Fewell]. Theoretical Population Biology 64(2): 151-162.

Sex change in cycads [Roy Osborne and Root Gorelick]. Palms and Cycads 76: 10-15.


Did insect pollination cause increased seed plant diversity? Biological Journal of the Linnean Society 74(4): 407-427.